[1]Patented Oct. 15, 1929 117319701 UNITED STATES PATENT OFFICE FREDERICK W. BERNAU, OF NEWARK, NEW JERSEY, ASSIGNOR TO FLLIS ADDINGTYPEWRITER COMPANY, OF NEWARK, NEW JERSEY, A CORPORATION OF NEW JERSEY OVERDRAFT AND SIGINAL PRINTING MECHANISX FOR CALCULATING MACHINES Application lued October 31,1922. Serial No. 598,155. This invention - relates to calculating machines which are adapted for performing- addition and subtraction, listing numbei-s and for printin(y the results of additioii and subtractio-n carried on by the machine. My pfesent ii-nprovements are particularly intended for use in connection with the 'niechanism of the -well known "Ellis" printlo ino, calculatino, machine especially the mechanisi,ns set forth in patents to Halcolm F 0" 1792, J Line 24, 1913, total signal ""O 's ' e .1 97,276, September 5, 1916, com-'-% @o. 1 (le ic bined iddin@lmacliine and t3,pewriter; and 15 No. 1,9,03,863, November 7, 1916, meelianical calculator. It is to be understood, however that the present improvements and the pi-inciples involved therein are . no,t., necessarily, re20 strieted to embodiment in mechanism similar to the "Ellis" machine as these improvements ma@ be iised in other calculating machines and the,,claims 6,re to be understood as covering aiiy iniprovements ilivolv2c ino, the principles of the inverition in whatzn ever calculating machine they may be empl ed O@o@;ever, to afford a clear understanding of the different rnechanisms involved in the 13 present invention, they are hereinafter described, and are shown in the accompanying drawings, in connection with so rnuch of the mechanisms of the "Ellis" machine, particularly as disclosed in Patents Nos. 1,065,'t'925 1,19746 and 1,203,863, as will afrord a clear understanding of the constructions, gperations, functions and principles involved in the invention. There are certain classes of work which a 40 calculating machine is required to handle, demanding notice to the operator that the .debit items accumulated exceed the credit iterns; depositors' accounts in a bank consti,tute a class of work wherein such notifica45 tion is importatit because an account in that condition is "overdrawn". Furth ermore, ,it is irnportant tbat, a calculating machine not only sigynal the fact that ari account is overdrawn but also enable the operator to 50 determine the amount of the overdraft and to print on the, leclger sheet bein(f handled by the machine the amount the @ecount is overdrawn or the complement of that amount and to so print the figures or identify them that they will be prominently displayed on 55 the sheet and on carbon copies thereof. Nlodern calculating machines, particular@v those iiitended to handle bank and trust con-ipany accouiits, are electrically driven under the control of a starting bar and I have il- 60 lustrated the present iiiiprovements in conne ' etion with the stai-ting bar mechanism of bar mechanism being, in principle, that disclosed in ihe patent to N. W. Perkins, Jr., No. 1,136,.165, 65 April 20, 1915, but it is to be uiiderstood that all of the present impi-ovements are adapted for use in connection with manuall,@ operated calculatino- machines as well as with motor driven m@chines. TO TI-ie "signa'l"I provided by the present in-vention for the pui-pose of inforn-iinc, the operator that the account being eiit@ered is overdrawn, the debits exceedincr the credits, inay be individual or duplex. tn I have de,- 75 scribed and showii a duplex signal, one of the mechanisms of which is arranged to automatically lock the starting bar wben an overdraft is present in the machine; the other meelianism of the signa,l locking the "balance" Bo or total keys by the use of which the balance or total represented by the then condition of the accumulator in which the adding and subtracting opei-ations have been coiiducted, is shown when the, iiiachine is operated. 85 By preference, to insure a-ainst any operation of the machine after the itenis put into the accumulator and deducted fror@i it result in an overdraft, the signal is used in the duplex form, including mechanism which go will lock t7ne operating liandle or starting bar or opei,ating mean.-, and otlier mechanisin which will lock the balance or total key but It is to be uiiderstood tl-aat either on'e of these mechaiiisms may be used tc, 1)5 effectuate that purpose of the invention which has to do with signalin(r the operator of the ovei-draft cona 'ition ai@'d that the invention is not limited to tlle colljoint use of the two locking mechani 100 the "Ellis" machine, sucli starting
[2]2 1,731,701 The purp6se of the starting bar lock is to prevent any operation of the machine after an overdraft has occurred until such starting bdr has been 'purposely released bv the operator. If iio starting bar lock is used and the signal is confined to the lockina of the balance or total key, it is still possible for the operat,or to continue subtracting items allo though the total of the items subtracted has become greater than t-he amotint of the balance, the operator's attention being called to the fact that an overdraft exists only when he starts to take a. balance by attempting to jr, depress the totpl or balance key but the overdraft mechanisiii havin(r meanwhile,oi)erated, the total or balance key is locked and the operator then Imows that an overdraft bas taken place. 20 Therefore, whether one or both of the locks are used, when attempt is made to take the balance, and it is found that an ovp,rdraft exists, it becomes iiecesqary in order to print the balance, for the operator to 2f, manually rest-ore the'lock or locks to normal, released, condition in order that the macliiiae may be operated. To enable this to be done, the locking mechanism is coordinated with the "decimal 30 slide", of the Ellis n-iachiiie, such slide being disclosed in Patent No. 1,197,276, in such manner that on operating the slide the lock or locks will be released so that the o - @ p erator can then print the amount of the sr, overdraft. However, inasmuch as an overdraft is an important and abnormal condition, it is desirable that it be printed in a distinguishing manner so that it will be easily pici@ed out 40 by the eye. To that end, novel means is provided foiprinting the item representing an overdraft in a distinguishing fashion, a.s, in a different color, for instance red, iind, also, identified by a sign so that the, item 4r, will be marked ifl a distinguishing manner on any carlon copies such distinguishina printing occurring on the next operation of the machire after the lock has been released as that operation causes printing of the 5o amount representing the overdraft. The operation of printing an amount representing overdraft in a distinguishing color may be carried oilt by. employi-@ig a bichrome inked ribbon, and ribbon vibrator therefor, and 55 combining therewith novel means which is aut,oniatically set so that when the rnachine tes after the release of the lock or the ribbon vibrator or sliift will be moved for that one operation a sufficient dis60 tance to bring the differently colored, say red, section of the ribbon in line with the nting type so that a. red impression will Eerimade when the, amount of the overdraft is printed, the mechanism immediately 65 thereafter being restored to its normal condition so that siieceeding items win be printed in the usual color. Identification of an overdraft is accomplished by eiiiploying means for automatically printing the overdraft with a distin- 70 gitishing marli: or sign. When this nieans is employed the saili@ o'verdraft is identified not only on the original ledger sheet but also on all carbon copies being made. Identification of an overdraft item by 75 printing it with a di@tinguishing characteristic may, according to my iilvention, be had by printing the overdraft in a differe.-nt color, or, accompanied by -a -sign or "signal," or both mefhods may be used simultani@ously. 80 'rhe Ellis Patent No. 1,203,863, dated November 7 ' 1916, provides a subtraetion key in addition to the usual controlling keys of the Eflis machine; furthermore, both of the accumulators.of the duplex calculator shown 85 in that pateiat are adapted for the performance of either addition or subtractj.OD. In the present invention I prefer to have one of the accun-iulators adapted for both addition and subtraction, as with the accu- go mulators of the machine of the Ellis PateDt No. 1,203,863, and to havp, the other accumul@tor a straight addinlr accuraulator. The 'ii@@lator may be of the straight @dding accu construction set forth in my Patent No. 9 r:, 1,536,757, dated May 5, 1925.... It is to be understood, however, that both of t-he accumulators employed in connection with the pre-ent improvements may be adapted for both addition and subtraction ioo as, for instance, in Ellis Patent No. 1,203,863. While,t@e subtraction key may be other-' wise arranged, I prefer to substitute it fcrr one of the controlling keys, for instan@e,. the 1 o;-) "Dr." sub-total key. Of the other controlling keys of the Ellis machine; the sub-total and total l@e may be suitably labeled to represent th,c@stotal deposits7i and the "balance", respectively, and another of the keys iio may be labeled to represent the "total cheeks", to particularly adapt the machine for use in bank'wor@. As described and shown the subtraction key of the present machine is adapted to 115 become automatically restored aft@r the.machine has gone through its cycle of operatioii, making it necessary for the operator to liold down the subtraction key by the finger if a series of subtractino, operations are to 120 be carried on co@secuti;ely but as it is a simple matter to provide latchilag ineans for holding down the subtraction key, wlien it is desired to carry on a series.of subtract'mo, S, it is to l@6 understoo operation d that sue 25, latch may be used. In ordinary bank aecounting, it i@ generahy inadvisable to provide means for latchino, the subtractin key as this opens the way for forgetfulness on the part of the operator which would r,e- 130
[3]1,781,701 3 stilt in improper operation in that class of work. In the application for my Patent No. 1,550,945, August 25, 1925, operating controls for calculatin(, iiiachines, reference was made to the fact that when the manually held stop thereof was operated by the operator returning the cal@riage to the credit column, means could be employed to cause the first following 10 iteiii I)rinted by the machine to be printed in a distinctive jolor, as for instance, red, to denote a credit iteni. One of the present improveilients relates to niechanism for effectuating the foregoin 9 15 purpose. This mechanism, while arranged so that it will not be operated by the manual setting of the subtracting key, is so coordinat-ed with the ribboii shift or vibrator mechanism hereinbefore referred to that wlien the 20 SPeCial, manual stop of the mechanism of my Patent No. 1,550,945 is ope@ated in moving the carriage to ihe credit column, the bichrome ribbon shiftiii(r iiieans will be set so .that the ribbon will 17c shifted oii the next 2i operition of the machine to brino- in line with the printing type the distinct;ively colored section of the r'lbbon, for instance the red section, so that the iteiii ii-ill be printed in i-ed. Tllis special mechanism is aiitomatically re30. stored to normal position when the machine 1) ate 0 iombsined with the subtracting key is special mec hanism@:sub@tittited for certain of the pieces, cams, and levers of the machine of 35 Ellis Patent No. 1,203,863 and, additional thereto, a link and i special hook or pawl by which the-parts are conditioned so that the accumulator is brought into a condition by@ which it will perform subtraction on the next 40 OPeration of the rnachine-. It is to, be understood that the foregoin(r mechanism does not interfere with. the cai.@rying on of addition in the'straight addin(y accuniulator as, if both adding and stibtracting accumulator and 45 straight adding acculiiiilator are employed, subtraction can be carried on in oiie accumu1,,itor while addition is bein(y p6rformed in tb.e other accuiilulator. Furth@imore, a total can be taken from one aceiiiiiulator, the ai-nount r)O of which may be subtracted from the accumulaiion of the remaining iccumulator. If the present improvements are provided in an Ellis niachine of,tbe class en-iploying an automatic tabiilating mechanism for shifting 55 the carriage froiii one tabulated position to another, it becomes necessary to prevent auton-iatic tabulation oceiiri-ing on the next operation of the machine after an overdraft ha,; C,O'Occiirred. Mechanism is provided which, when the decimal slide is moved from its usual position for the purpose of setting the parts so that the machine may be releas'ed and the overdraft printed, causes the automatic t;s tabulating mechanisin to be rendered inoperative and to remain so until the decimal slide is restored to normal position. The overdraft. mechanism by which the lock or locks or si(ynal or signals heretofore referred to are operated and otl)Cr inecha- 70 nisms are set, is under the control of the subti-acting pawl or hook of the highest "order" of the adding and subtracting aectimulator. The subtractin(f pawl or hook itself is of the saiiie construct7i6n as the corresponcling de- 7,5 vice of the Ellis Patent No. 1,203,863. Com-, bined with this subtracting pawl or hook and -witli the "shift bar" of the adding aild subtractinc, accumulator, is an ov erctraft loclr, latch b@ means of which an overdraft condi- 80 tion restilts in stich a settin- of the overdraft lock latch that the overdraft mechanisms hereinbefore referred to are operated to lock either the opei,ating means such as tlle starting bai-, or the balance or total keys, or botli. 85 The present improvements beino, additional to the mechanism of the Ellis m@chine, reference is to be had to the aforementioned Ellis patents for a full diselosiire of all mechallisms and their operations -%vhich are directly or in- go directly related to the said improvements and iii the followin@ description alid accompanyindrawings reference is i-nade to only so ilitich of the patented FIlis i-nacliiiie as will afford a clear understanding of the relatioii- 95 ship of the present improven-ients thereto. I aiii aware that modifications may be resorted to in carryin- otit the esseiitial prinei2m ples of the various impi-ovements hereinbefore otitlined and wbich are hereinafter spe- loo cifically qescribed ,tnd are sliown in the ae-- compan ing drawin(ys. It is to be. understood, t@erefore, that' the constrtiction,,; specifically described and shown, while the preferred embodiments of the invedtion as at 10,5 present devised by me, are susceptible of modifi cation iii many respects without de,- partin g froin the essential principles thereof. In the accompanyin(r drawiiios: Fiou re I is an eleva-tion of t-he left hand iio side @i the machine showing only so.much of thpinechanisms of the patented Ellis illaciline as will attord a clear understanding of such of the present iinprovements as directly relate to the subtracting key, mechanisni for 115 contro lling the tipper addino, and subti,acting accu mulator, and the overdraft locks for tbe balanc e and total deposits keys or total and subtotal keys, the keys illustrated being in iaorm al position. 120 Fig. 2 is a similar view showin- the siibtractin (y key in depressed position@ and the mech an-@isms controlled thereby in their set conditi on. Fi (y. 3 is a siniilar view, other parts bein(r 1 25 shown , the subtracting key being down and the main or driving shaft and the difftorent operat ing iiie,,,tns for the accumulators i@ the positio n they assume at the end of the forward stroke.. 130
[4]4@ 1,731,701 Fig. 4 is @t view siiiiilar to Fiu. 1, the total a il or bal nee k@y E@nd the sub total or tot, del)os; .ts keys being locl@ed by the overdraft Illeclianisi-@i., an overdi-aft havin(,r previously OC(.'iirre(l. Fig. 5 is a side elevition showiny the siibtractiii- key, repeit ]-ley, I)alance key, -.iid total deposits k(ly iri norli,.al positioii, coi-iesl)ondin(,r to their ai-r;tngeiiaciit iii Fi(-,. 1. aiid 10 illiistratin(y the nicelifiiisiii for aiitoiiiaticallv releasing the niiiiieii,.il l@eys, siid mechanisiii bei-ng i,-.i nori-tial 1)osition. Fi(,. 6 is a v@iew lilce Fi(-. 5 ilitistratin,_y the bal.iiice or tot,,tl l@@y in (Tepi-es.,@(,d I)osition aiid 1,5 the parts arraliged so tliit the nuiyieral ke.)7s will be released duriiiu the fii,st ir)" of ti@e forward strolze of the (Ii-iNri3i(, or opei@atin" shaft. Fi@)-. 7 is a deti.il pei,sl)ecti-@,e of the bell 20 crank connection betnveeii tlle releasing slide bar and the transverse bar by %vhicli the Tiun-ieral l@ey latches are released. Fi(r. 8 is an elevation ,it the rialit liand si(le of the iiiaebine, a number of mechinisiiis 1,,e25 in(y oiyiitted fol- the sak-e of cleariie95-,, slio",iiig ce,.7ta-in pai-ts of the h,,i.nd tabulatio@.i an(I atitomatic ta-biilation mechanisms, tl-@e set link for the ovet-(Iraf t iiiechanism, end of the decinial slide, ,ind certain restorinoineelivnisms, the 30 1 oi- operatii, 2--l maii' ig shaft ]Cein(y slioivn at the end of its forward stroke, the deciiiial glide being in its extreme ri (Ylit li;,tnd position, and the tabtilatin(y hook in position to perforiii ,,ii.it'oiiiatic taoulation. 35 Fig. 9 is -, plan view with tlae p ,irts in tl-ie positioii shown iii Fig. 8, the tabulating k(,v and certain other parts bein- oi-nitted. 'F@'@g. 10 is a view lil,:e Fifr. 8 showing th,parts in normal positioii. 40 Fig. 11 is a plan view of the I)arts slio-vvn in Fi(r. 10, with cert,,tinomissions, wlien in norm,il position. Fig. 12 is t view similar to Fig. 10, the set link havin- beeii moved tc tl-ie riglit bv the 45 manipulation of the d,-@cim,,tl slide, the t-I)iilating hooli: being in noriiial position, an (I I be tabufating control lever bein in position t,) 9 prevent auton-iatic tal)ulatioi). n(y Fig. 13 is a siipilar view, the tal)iilati r)O hooli: haviii- risen and being prevente(I f roni oper,,tting the tabulatincr, mechan@.sra by the control lever, the parts beincy as they appe t7l ar at the end of the forward stroke of the operatin.(r shaft. r)5 n Fig. 14 is a plan vie-w of the parts when in the position shown in Fig. 12. Fi(@r.'15 is a perspective vieNA,, the side frames of the machine being in. dotted lines, showing (10 the overdraft meebanisin ,tncl operative cOnnections to the locks for the startin(r bai, n balance or total, and to-tal deposits or subness aiid the overdraft mechanism and loc'ks being in normal position. Ficr. 16 is a detail view of the starting bar 7:, iiiechanisi,.i shoiving the overdraft lock in locl@e(I position. 1 70 Fi(,-. 17 is a part side elevdtion and part @,ectional vie-,v showing certain of the meehaiiisiiis at the riglit liand side of the machine aiid, al.so, the overdraft mechanism at the lef'Ll I)arid side of the iiiichiiie, the shift bar of '75 the i(,ciiiiiulitor being set for addition and the overdi,aft mechanisiii aiid starting bar oN-ei-(.1i,aft lock and ribbon nieclianism being iii noriiial condition. Fi(-. 18 is ,t rear elevation of the ma- 80 cliiri(@ shoiving the overdraft sliaft and ceri ai ii of tli(@ (1(-@vices related tllereto. -Fit(,Y. 19 i,; a plan v;ew of the overdraft iiie(-Iian;siii, l@il)1)01-1 meelianisi-n aud links or 1),irs tli,,it coiitrol the locks, the decimal slide s,5 I)eiii(r slioavn ,ig liavino, been moved toward the left. tll(@ froiit pat-t of the madhine and iii(,cllanisni,@ bein- ornitted. Fig. @-10 is aii elevation at the left haiid side c)f the iii,.icii;ne -,Iloivin- the locks for the go 1).ilance aii(I total cliecks l@eys and the means by wliieli tl),,ly are opei-ated, other mechanisiiis at the left 1,.,.tnd side of the machine being oiiiitted. "'ig. @ 0 i ?I is i 1)artly sectional, partly eleva- 5 tional, detiil view of the overdraft meeliani--,iii @s s(,t f or cai-rying on a subtracting opei.itioii. b@,foi-c an overdraft has taken place. Fi,y. @2 i.,@ t siiiiil,,ir view showing the positioi of the parts after an overdraft has ocloo Fig. 23 is a cletail side elevation of the ribI)on sliift iijeclian;sm wlien in normal - position for caiising ordinary printing, s,,ty in black, to ocetir. 105 Fiy. 24 is ,i similar view showino, the mechtiiis;ii trranged so that the ribbon - vibrator i@@ill I)e sliifted to cause printing in a - distinetii,e color, s,,ty i-ed, as -when -,in overdraft bas takeii place. .110 Filo-. 25 is a front vie-w of the decim-,il slide s]-iolyr-t in its extreme rio-ht liand position. r_l Fi(y. 26 is i sid6 elevation of the t,,tbulatiiag t, iiieclitnism, showin- the keys for the typeNvi-iter and adding Iceyboards and their man- 115 iier of CI)Opei-,,itio'n W'ith the iiiechanism for, EE'ttin(r the t,,ibulatiing plungers. Fi,,@ 27 is a rear elevation of the meeb,,,n. sm of the tabulitin(y section of the macliine, showip-g its coopj'ration with the tabu- 12,1 latin(r l@eys of Fl'g. 26 and the escapement lll(,Clianism of the maehine. Fi,),. 28 is a bottom e . dge vi@w of the tubulati n,, ' ,, section of Fia. 27, vertain of the parts bein(r om;tted. 125 Fi@r. 29 is a top edge view thereof. Fi@'. 9,0 is a section on line 30-30 of Fios. 27 9 total key, the ribbon shifting n-iechanisn-i ancl and 29. decinial slide, various mechailisms of the Fig. 31 is a section taken on line 3 . 1-31 of 05 machine beiiig omitted for the sake of clear- Figs. 27 and 29. 130
[5]1,731,701 14'i,r. 32 is ,I fi@ont eleva-tion of certain iiiechby whicli printing in t distinctive color iiiay be accoliiplisbed tt will. Fi,7. 33 is a 1)1,in vie-w of cert,,tin parts of the tilecliaiisiii of tig. 32. Fil,--. 11. is ,t sid(, elevatioii of meebanism tor i,,itoiiittleallv I)iiiitin(, i('Ic@litifyjiig signs or si,,iials@', the pirts being in iiornial position. n 4 Fig. 35 is i, similar vi(,w, tlie, pai@ts being in I)osition to I)rint t subtractiiio, si(-n. Fi(--. 36 is a siiiiilar A@iew, the patrts'@l)oiii(- in I)osition to print L cre(lit f).il,-nee si-n or ar, overdraft. Fi- 37 is a detiil side elevation of certtiin of the pai-ts of the meeliinisiii of Figs. 34, 35, 36. Fig. 38 is ,t detail of ,t linl@ qho-,vn in Fics. 34. 35, 36. eD 20 Fig iii-es 39 an(I 40 are views illtistratiilg ,,@ainples of the printed record. As set forth in Ellis Patents No. 1 ',197,276 ,ind No. 1,203.863, the iiiachine is d iven or r opei-ated, eitlier by a handle, or by an electric 26 (11.ive. neitlier of whiell is slioivn, fron-i t sh,,ift 01. In the accompaiivin(, (Irtwiri(,rs only so ilitiell of the patented Ellis iiiach';ne is sliown as will affoi-d a clear Liiiderstanding of the re1,,it,ion of the prc,.sent improveinents tliereto. 3o illodern calciilatin(y macliines, particiilarly those inten(led for loose leif ledo'er worl@:, are clecti-ically driven andcontrolled bv .i startin- bar, I bave, therefoi-e, illiistrate(I startin- bar mechinism for the control of the 35 electric drive stieb meeli.,tnism appe,,iring in FI!L@,,4. 15, 16, 17 and 19. The shaft 01'earries a piece M051 (Firs. 8 and 10) whicli is operated b-v the electric 40 Secured to sliaft PI wliieh is nioiint(,d in the ft-aine anci in the side plate P50 of the I)i,inting section is a erink 0160 ivlii(@li i.,@ OP fi-oin the piece M051 by the T)riTitin1)itm-,ii 061. Cai-ried by the shaft PI is the 4r) I)al)er feed lever P74. Referring to Fi(r-,. 8 to 14, 15, IT. 34, 3,r),,96, tlic,, si-nal settin(y- qi-m wliieh is inoi-cd I)y the canis N67R and 6iNPt that swin- tli(,. fi,.imes of th.e %viieels of tli(,, ,iccumiilatoi-s, as slioii@n 50 in Ellis Patent No. I,OC)5,792, ipl)eii-s at 60P. One of the printin(r SC etoi,s is ;IioNvn ,Lt P54. ct , pivotecl to iriii 52P at PIO an i(lil)ted to I)c set by Iiiik P,53; the si-nal 65P ivi);(,Ii is pivot(,.(] to arni P52 at P10, is opei,-,t@e(I I)y 55 Iiiilc 23.55 by inipi-oved iiieaiis liei,eiliaftel- (I c'- .C;ci-I 'I)e(]. of wliieli tlieqi(rnal lever C)IP pii,otecl at PIOP (-oiistitiites a 1),trt. Tli(@ (leeiiiial sli(le P67 is oper,,iteO, I)vt sli(le (;o lir)"l coniiecte(I to the liooli: POS of fl).c, sli(le P67. The piece B@-)3 lias a I)iittoii 1013 is iiioi-able ovei.- the seile P-)154. I'lic, (leciinil sli(le P6i' apl)ezii's iii Figs. 8 to 14, 17 ind 19. 63 The lever P272 (Fiys. 8, 9, 10, 11, 15, 17 and 19) controls the automatic turning of the platen. A plate D50 wliieh is secured to the left liand end of the operating shaft 01 (Figs. 1, 2@ 3@ 4) ait-oi@ds the means I)y ivhicli the motion 70 of saicl sliaft is iitilized fo'r the operation of the aceiimi@lators, accordln,- to tlle controls effected by the various controlliiig lieys. Siieh of the present improvements as relate to the controlling ke.),s, ineltiding the sub- 75 ti@actin- Icey K67, the balance or total key IC63 for'tlie til)per accumulator, and the subtotal key or total deposits key K64 are shown iiloi@e particularly in Figs. I to 7, 15, and 20. The lower accumulitor is not sliown in de- 50 tail. This aectimulator as combined ivitli the meelianisms of Ficrs. I to 4, is controlled only for purposes of Wddition and will be constriieted ,is set foi-th in my Patent No. 1 536,757, d,,tted May 5, 1925. It is to be un- 8,5 1 (lei-stood, lio-",ever, tb,,it the lower accuiiiulator may be a combined Idcling ancl subtractiii- accuniiilator as disclosecl in Ellis Patent No. 1,203.8f)3 as additional mechanism could be en-iployed so that subtrtetion as well as 90 addition could be cai-ried on in the lower aecumulator in coiinection with the "overdraft" featlires of the @i-esent invention. Olil.), so ii-iuch of the upper combined adding and subtractin(r tccumulator is sliown in 9r) Fi(,Ys. 15, 17, 18 an(I 19 as will afford a clear uiiderstailding of the operation 6f the mechanisn-is )ihen an overdi,,ift takes place, and the relatonsliip of this ac(,iiiiiulator to ihe imI)roved.mechanisms shown in Figs. I to 7 by 100 ivliich the iipper accuniulator is conti-olled. P-,(,ferenee is to be liad to Ellis Patent No. 1.203,863 for a detailed disclosure of the (reiie.,al consti,uction and principle of the i-,I)I)er adding a-nd subtractin- acciimulator. 105 t-1, The si(7)tg@action Iiiey and s,ttl)tractiiig mechkev used for settin(, the machine so that stibtr,,tetion mav be perfoi-med in the iil)per accui@aulator is slio)vii ,it K67 in Fios. I to 5, this kev being, in the I)resent instanee, lio - tibstitiited for the Dr. stib-total l@e)T K67 of the lowei, qccumulator of the Ellis Patent No. lioweirer, that 1.19i-,2'@6. It is not essential, the Dr. .@ub-total key of tl)e lo",er accumulator be dispense(I ivith. A latch L160 which 115 isactuated by spring SIL aDd is pivoted at L20, is a(itpted to Ittcli the stibtraction key K67 I wlien the li.tter is in depressed position. - Pivotallv connected to the latch L160 at L23L is q lon(- set Iiiik 64L whicli is pi-ovided -,it 120 n N18 ii,itli ,t pin and is provided at X with a cam slot so flsliioned and located that the set linli: is nornially stistained.in the position @,li own in Fi-. 1 by a scre-w pin Nl'( projectin, froni the -franie B47 a-@id on ivliieli said set 125 liili: i-ests. Wlien the siibtractioii l@ey K67 is del)r essed, however, the movement of the set linli[ 64L t6 the le-ft, e,,iiises t'lie sci@ew pin N17 tc, enter the cam -,lot X -,IIiich thereupon allows the set link to d'rop to the position shown 130
[6]6 1,731,701 in Fig. 2. The shafts Nl and 1N carry the cams.N67R and 67NR (Figs. 34, 35, 36) which swing the -wheels of the upper and lower accumulators into and out of engagement with the adding racks or actuators, as explained in Ellis Patent No. 1,203,863. and carry on their ends the cranlis 65N and N65, respectively. These cranks have rollers A30 adapted to be held in the rearwardly or for10 w@rdly arranged notches A170 and l'to@k of scissors like 1,,itching devices coniprising pieces A169 and 169A which are drawn together by spi-ings A86 connecting them ,is expl@ained in my Pateint No. 1.536,757 dated 15 May 5, 1925, by wliieh the aecumulator is suitabl@ held in its enua,-ed and disengaged relatio'n to the adding ra@ks. As shown in Figs. 15, 17, 19, 21, 22, the irregular shaped shift I)ar N90 of Patent 20 No. 1,203,863 is einployed and on the left hand end of this bar there is secured a crank lever 69N whi,ch has a square stud D13a at its lo,wer end and a stiid N19 at its upper end. Spring 82N normally pulls the craiik lever 2r) 69N in a counter-clockwise direction. A subtracting operating hook 68N has a slot 6SNa by which it is slidably mounted on tile pin Nlb. This hook is normally drawn rearwardly on the pin N19 by two contractile 30 CC)il springs N81 located on'opposite sides thereof and connected to the pin N19 and to a pin 17N on the hook. One of the springs N81 is obscured by the hook 68N in Figs. I., . A (, 2, 3 and 4 oil spring N82 which is con35 nected to one of the pins 17N and to the subtracting detent N69, serves the dotible piirpose of tending to draw the subtracting operating hook 68N downwardly and the stibtracting detent N69 upwardl Y. ,4o Referring again to Figs. 1 to 6, there is pivoted on a sctew L25L a subtracting cam L162 which has a cam at its right hand end with which the pin L22L on the latch L160 norm-,ilengages as IY shown in Fig. 1, the said pin 45. ridijro, on tlle cam end of L162 and depressing sai 'd cam L162 wlien the siibtraction key is depressed as shown in Fi&. 2. A subtracting cam lever 60L is also pi-%,"oted on the screw L4-5L and 'k'S connected to the subtracting cam r)o L162 by a contractile spring L80 wliieli normally holds the left hand end of the subtracting cam lever 60L raiseo and in contact with a headed stud L16L on the subtracting cam L162. 55 A total tam lever 58L is pivoted on screw L25L and has its left hand end abtitting a pin L21L projecting from- the subtracting cam L162. The normal position of the total ca,m lever.58L shonvn in Fig. I is maintained (10 by the engagement of the riglit hand earn notch thereof with pin L14L carried by the latch 56L for the sub-total or total deposits key K64, such latch and key being of the same 65 vneral construction set fo'rth in Ellis Patent 0. 1,197,276. A spring,56La normall@y draws the upper end of tlle latcli 56L agaiiist the stem of key K64 so that when the key is depressed tlle latch will engage the notch thereof. A hardened shoe L90 is secured by rivets To 28D to tli6 left hand end of the subtracting c,,tni lever 60L for cooperation, when set by the keys K63, K64 and K67, witli the hardened shoe D90 on the lower elid of flying lever D53 whicli is pivotallv inoun@ed on the plate D50 75 at D14 and ad,,ipted, to cooperate with the square studs D12, aiid 13D on said plate. A total pawf'L62 is pivoted on a stud 19L carried on the iniier face of the subtracting cain L162, said total pawl han,in(r a pin 20L 80 wliieh extends underneath the subtracting cani L162, The total pa-,@l L62 is normally held in the position sliown iii Fi (Ys. 1, 2, 3 and 12" 4 -Nvitli the pin 20L abut,tin(y the lower edge of subtracting caiii L162 1); the action eJ a 55 spi-ing L82 coiinecting said total pawl to a projecting part of the -subtracting cam L162. The total pawl L62 carries on its upper end a hardened slioe L91 secitred by rivets 28D. I The total or b,,ilance key K63, is held, -%,@heii go depressed, by a 1,,itch L56 wliieh is pivoted at L19L and is provided with a pin L21 adapted to be drawn against the end of the total cam .58L by the action of spring L56'-, when the ke@ K63 is depressed. 95 etti2@q the accunz4da,tor by subtraction key.-When the subtraction ke K67 is deY pressed, it is imiiiediately latched in its depressed l@6sit,ion by the latch L160 whose operation results in parts asstiming the posi- ioo. tions shown in Fig. 2. The riding of the pin L22L on the subtractin- cam L162 causes the whole s-v,steiii of mechanism associated witli L162 toturn in a general clockwise directioia, resulting in the total cain lever 58L becomilag or, released from the pin L21L, the subtracting @am lever 60L to rise so that its shoe L90 is against the shoe D90 of the flying lever D53, and. the total awl L62 to become elevated so . p that it will be engaged by the shoe D90 at the lio end of the for'ward, stroke of the shaft 0 1 and plate D50, as shown in Fig.- 3. The moveme'nt of the latch L160 caus'es tl-ie set link 64L to shift toward the left, thereby alloiving the screw guide pin N17 to enter 115 the cam slot X. This results in the set link 64L dropping from the position sho-,vn in Fig. 1 to that shown in Fig. 2. Normally the lower edge of the subtractinz operating hook 68N rests on the pin N18 @'o that said i,-@o subtractino, operating hook is held in elevated posirion. When, however, the set link 64L descends, as described, the subtracting operating hoolk 68N is allowed to drop so that it is positioned for engagement by a pin 12:$ 18N on the crank.65N which turns the cams (not @hown) that lowe'r the wheels N50 (Figs. @5, 17, 21, 22) into engagement with the adding iacks of the machine at the proper tiiiie. The subtracting operiting hbok 68N is, by 13o
[7]1,731,701 7 the nioveiiient of the set link 64L, thus conditioined so that it may be pulled toward the right wlien the crank 65N siviiigs to the ri-lit as shown in Fig. 3. Subtracting ol)e7@atioii.-Tlie pai-ts liaiing thus been set, wbeii the inacliine is operated, eithei,-by i handle or electric drin-c iised for the pur ose of turiiino, sliaft 01, the plat(@, p e5 D50 which is normally iii the position show:i in Fig. 1 is tiirned to the positioji shown ii-i 10 Fig. 3 and then teveitses its iiiotion aiid re;r sumes the position shown in Fig. 1. Before the return of the pl.ate D50 f i.oiii the position sliown in FiLy. 3 to the iornial position of Fia. 1, the si@btraction key K67 becoiiies restore(I and tl.ie subti-actino, cam L162 and subtraCtiDg cam levei- 60L and total cain lever 58L all r-esuiiie their normal position. In the Ellis i-tiachine set foi-th in Piteiits 20 No. 1,197,276 and No. 1,203,86'a NN71ie@ an opei,ation of addition is to be pei-foiiiied, the addin(r racks or actuators R50 (Fiis. 2'11 22) advance, during the operation of the machine, as far as allowed by tli3 -,cttino, of tli,, nu25 mei-al lieys before 'ihe sliafts Nl, IN, ai-(@ turned (aceordin- to which accuiiiulator is being used) for the purpose of engagidg the wheels N50 (Figs. 15, 17, 21, 22) Nvitli said racks. This action occurs in an addiiia ol)er31D ation, i-,,hen the plate D50 lias iiioved thro u(rh a,n angle of abotit 450. The ivheels N50 r Mai in engagement witli the racks R50 unt -tlie racks have retur'ned to noi:nial such return of the racks turnin- th 35 ,,Vheels N50 according -to the extent of said racks. When an operation of subti@action is to be performed, however, as the number is to be iiiim6diately deducted froll'i any number,set 40 up on the wheels N50 during a previous opei-atiori of the niachine, it bcico@ii(@s iie@essary to cause the wheels l@50 to en-(,age the racks R50 before said i-a6ks move an7i to dizipiigage the wheels N50 fi-om the racks bi@fore the 45 rael@s start to retuin to their noriiial position. . In a stibtracting operation, tlierefoie, it is iiecessary to niove the tippoi- ci-aii]@ 65i from the posit,ion shoii-n in Figs. 1 and 2 to that showii iii Fig. 3 before the racl@s R50 have started to niove. . The subtractioji key having been set ancl the parts being i'n the position shown in Fig. 2. when the macliine is operated, the swill 9- iiig of the plate D50 iii a clo,-kwi@e direction 5;i results in a,teiiiporary arrest of tlje flying lever D53 because its lower end is tenipoi-ai-ily blocke@l by the slioe L90 on the subtractin,r cam lever'60L. This results in levei- D53 piFIling, upon link D56 which connects it to c,o the crank 6r)N of the adding and subtracting accumulator, causing the sliaft Nl to b,turned and the frame 51N, 56N, whicli car65N is drawn into the notelies 170A so that the ivheels N50 are retaiiied in engaoenielit with the racli:s R50. The nioveiiient of the connecting lidl.: D56 to the i-io-lit froiai the position sliown in Fig. 2 to that slioivii in 70 Fig. 3 also i-esults iii the I)iii 18N pulling iil)on the siil-,ti-actioii operatiii,, hook 68N Ni-Iiieli, tlii-ou,-rli the spi,iii-gr conliectioiis N81, piills ii[pon t,@e pin N19 and thus turns the cradk 69Niiid the shift bar N90. bi-iliging tlle 75 sllift bar N90 to the position slioii,n in Fig. '-'l, which is the siibtractin(y I)ositio-.i. The fil-st part of the niovement of the plate D50 releases the restoring lever D67, allowin(,- the. sp@i-iiig N82 to snap th-, stibti-,ictin(r (I e- 80 69a teilt N.69 upwardly so that the Doteli N tliereof enraces t,he sqtiai-c stud D13:, on crank 69 Fig.3 Dtirinr its cloclcwise moveineiit, the plate tm D50 drags the lower end of flying lever D53 85 I)ast the shoe L90 on the subtracting cain lei,er 60L so that after the accumulator lias been set for subtractioii and the wheels i\T50 eligage(I with the racks R50, tlle said flying leve., D5'a siinply turns idly on its pivot D14 go and exerts iio f urther action on the crank 65N and liool@. 68N. The lower end of the lever D5.3 is fijially drawn across the shoe L91 of the tot,al pawl L62 and ds this paivl is actuated by spring L82, it is sliohtly depressed, 95 e5 allowing the flving'lever D53 to finally assume the position showil in Fig. 3, that is, abuttincr the shoe L91. On t]7e return stroke of the shaft 01, the plate D50 is turned in a counter-clockwise di- 100 rectioii. - The return moveiiient of the I)Iate D50 causes the lower end of lei,er D5'a' to press against the shoe L91 of the total I)awl L62. The pressurp, beina aliiiost in ,i dir@,t line with the pivot 19L 6ftlie total paivl L62, 105 i. e., almost directly on a de,,id center, there is no tendency for the lever D53 to def)ress the total pawl L62 but, oii the contrary, the total pawl L62 constitutes a solid ibtitiiient to temporarily resist the rettii-n of the levei- D5@@3 110 so that pi-essi.ire is applied tlirough lever D53 and connecting link D56 to the ei-anlc 6.@)N, c4using said cr@nk to be i-eturned to the noriiial position shown in Fig. I at the, beoinnilig of the rettirn stroke of the plate D50, thei-eby 115 resultinc, in the turning of the sliaft Nl and tl)e-rai,@sl!'ng of t'ile frame 51N, 56N, and disengagement of the wheels N50 froiii the l@,teks R50 before the racks star@ to return to norm.11 position. When the plate D50 rettirns to the 120 noi-mal position sho",n in Fig. 1, it a(r@i".11 engages the restqrin(y leN7er D67 and calises the pin D13D to elevate the right hand ond of the subtracting detent N69 and to vithdraw it from enra(,ei-nent with the stlid D13a. 125 Wiiile n@o' disclosure is given of nie,,tns for latchino, down the siibtraction Icey K67 for a ri4@s the shaf t N2 to be moved ajid %vlieels series Of ropeated stibtractions witliout reNr)O tlieii mesh -%vitli the raclis R50 before the quiring the opei,ator to hold his finger in said 65 i,acks stiti-t to iiiove. The roller A30 on cranl@ key, sucli latching ineans mty be provi,ded, if 130
[8]1,731,70'A d(@?ired. In the constrtiction disclosed, the sui itractioll Icey li67 ivill instantly rise wlieii the lateli L160 is inoved in a cotiiiter-clockivise directioii-. This actioii alitoiiiaticztlly OC,@Lirs oli the returii stroko of the sliaft Oi and plate D,-)O. @ A releasl,.i,l)- bii- 1,166 is ciiiployed for i-e11-lasin(, the SL[btractioii key K67 and the balaiiee oi- totil l@ev li63 and the stib-total or total deposits key K64, s@,tid bar bein(- pro10 vided witli a pi-ojection.@V' (Fi(-.'a') pos'l',ioil@,(l t@ f-or ii-itli the upler eiid of the 'n 11 lateli'LI(iO an([ siid bar lias anotlier proj(,@etion A" for eig,,t@reiiient witli the tipper eii(I 1,5 of the latch L56' for the bilance oi- totil k,,,y for enga(,Yement witli the latch 56L. The i-eleas'.n(, bar L166 is I)iN-otally iiiotintecl at its forAA,ard end on ,t siviii(,rtn(,- caiii L54 wlii-cli i-, 20 a(lapted to be iiiove@t by en-a(,Yeii)ent ttiei,e@n with of t pin Kll on tll(@, error key K161 s,) that the bir L166 @iiay be iiiove(I to the left, lPi-. 3, to release the kevs K63, K04 and K61' by depresslii(,,, tlle eri@or l@ey, tiie latter - liivin(' 2,5 110 lateli. Otli.er iiie,,tiis, not slioii-n, is eiiiployed for i-eleasiiig the i-einainin(,' coni"(l lill (el@' keys, by depressing the error key KI(it -ts 'II be i -%v 1 -inderstood f rom reference, io Ellis Patent No. 1,197,2@6. The left 1,,ancl end of 30 the releasing I)ar L166 lias a slot wlil(,,h is loo,,@ely iiiountect oii',l StLtd (@arried by the tipl)eieii(I of q,. piece L68 pivoted-to the frailie at L15L. On the extreitie left hand eii(I of the i,eleas35 ij,(, 1),ir LIC)6 is (i pivoted lever L16-1 wlli(!Ill is ,ICICI iTi N,oi@tieal posit,ion by i spi-iii(- coii3 1 iiecti.,ittotliebarLl(;6. Projectin@,fi-oiii the of the plite D50 is i, s(luii,e sttid 1)13 ivliieli is adapte(I to flip tli(, lev(-,,@ 1,167 40 i(I@y wheii movin- on tli(,, forwarci strol@e, of t' tlie, iiia(-Iiine. Oii the retui,n sti-oke ofthe I)la',e D50, lioavever, the stit(I Dli') the fol@iv,ti-cl ecl(-e of ttie IoNN-er clid of the lever L167 a:ntl sa@in(rs the utjl)ct- end tliei,,@of fo,.-4,5 %Vtr(Ily 1-inti'@ it eii(yage:@ a st,,itionai-y pin L2@)1, ivliieli p,,-ojects n froiii the side fraiiie B47 of tli(, iiiicliine so tli,.tt @is the r(,turii iiioveiil,-iit of I)Iate D,@')O conL'iii@Lies, exelted oii tlic lek'er L167 catises the bar 5o 1,1(i6 to I)e cli,,tii,n to-v,-at-(l the i-ear tlitis bi-iiigiii,r tli,@ J)rojection A'Iii cojitact ii-itli the 111) oii t,lic itl)l)ei- e--,i(I of the lit(@h L160 of the siibti,.act on key K67, clisen(,-,i,@ln@, said lateli froiii t],@e, key aii,.l ,tl.lowins4 tlic, lit'Lei- to 55 b(@ si-@al)ped upivar(113T by itS SI)rlil(r. iii the saiii(-@ iiianii(,,r. the pi-oject@Oll @\-" ii-ill i-ele,ise the litch.L,)6 on tli@e, total oi- I)alaiiee l@enr K63, and A... the lateti 50L for k-ey ,i@@i4. 60 Tli(@ fore-o,n(y oi,,ei@,itioii of tile, I @, 1 27,e.easiiiI)at- L166 and rel.e,,ise of the ,@i[I)ti-.ietion l@et!' oceiii-s I)e'Loi-c the flviii,, levei- (,,i,in en(,a(ye tite ,@lioe L90 at tli(-'Ieftliancl ciid of the siil,ti-,qctliif,-r ctiyi lever 60L and, is the si%,in(rino@ r,5 of the lateli L160 in a cotint er-clock@vise,dirc-ction releases the pin L22L from the subtractiiig cam L162, the said cam L162 and the subtracting cam lever 60L drop to the ilorilial position shown in Fig. 1. The moi,eiiient of the latch L160 in a coun- 70 terclockwise direction by the movement of the releasing bar L166 to the left, as previously explained, causes the set link 64L to be drawli toward the riglit, whereupon the caiii edges of the slot X. cause the set link to 7 5 i-l(le on the pin N17 and resun-ie the normal position sliown in Ficy 6-1 1. The rising of the set link 64L causes its pin N18 to @levate the s[ibtracting liook 68N from'the subtracting posi'Lion of Fi- 3 to the addin- position of so ti-actioii li:ey K67 reiiiains in elevated position so that addition inay be perforiiied in the tipper accumulator by depressin(-r the proper zn controlling key provided in the Ellis ina- 85 elline. When the plate D50 assumes its normal Position, its engagemeiit witli the restoring lever DC)7 results in disen- . agement of tlle detent -N(@9 -1'roiii the lever 69N and the shif t bar@theil go i-ettii,ns to tlle addin(- position shown in li'i (Ir. 1 7. ;m AIIlien it is desired to subtract a series of items, the subtraction key is held in depressed position by the finer of the operator, the -.5 ,@tibti,.ictiiig earn L16@2 and the stibtractine, caiyl lever 601, then remaining in the position slioii-n in Fi(r. 2 by reason of the cooperation of I)in L22Lof latch L160 with stibtractin(y ciiiil,162. Wlienthesub tractiii(rkeyisthiizns 100 liel(I down, at a time just prior to the plate 1),,-)O asstiniiny its noriiial position oii the rez-, tiii-n stroke, the lower end of the flyin(r le%,-er LI D,-)3 strikes the uppei, side of the shoe 1,90 on tile subtractin(y cam lever 60L btif as the 105 left hand en(I of @aid lever is held in raised positioi-i by sprin(l, LSO, the retui-n of the flyiiig lever D5.3 to norinal I)osition nierely ,@li(rlitlv depresses the left liand end of cain lei-er 60L and then pisses beyoiid it, finally 110 asstiniiiitr the posi-tioii sliown'ln ri ig. 2. illeai?8 jo,@, 7@eleasinq tlte giu-7iiei-al keys (Ittriv@l a,,it addki? q o)@ sitbir(i(@tijig opei,ation.-Tlie ntimeral ke,is (not slio-%,N@D) %Yhich are ftilly di,,closed as to construction and operation in 115 Ellis P,,itent No. 1,197,2'16 Ire released, so t]),tt they iiiay sl)rin(, up to noi-m,,il I)osition, by the moi-eirent of ,t slidin!,r bir 66K (Fi-. 7) exteiidln,(,,, across the front of the nurner@tl ]@ev ,ection of the iiiachine and liiviii- a i)in 120 l@iK on(,aged by a bell eriiik lever I,53 ivbich is sititibly pin,oted on an extension of the frai-iie B4@ and whose left liand eil(-l ,Ipl)eirs in Figs. 5 and 6. The bell ei-ank lever L53 [)eritecl 1)@r t.lie moveiyient of a sliclin(, bar 125 is o@ el I @')i (Fi(,s 5, @ and 7) wliieli, a-, slioivn, is siit)stctiitiil.ly siniilar to the cori@espon(lin(,Yly nlinibei-ed bar of the Ellis Patent No. 1,203,863. The slidi-,nc, bar L51 lias suitable slots tlirou(rh whicli pass screivs connecting 130 K6". , Bar L166 qlso lias a projectioii A... Fig. I wliere it will remain as lo@o_- as the sub-
[9]1,731,701 9 it to the side plate of the machine so that it L10 and its left hand end is hook shape. subcan inove horizontally. Pivotally carried by the bar L51 is a hook L63 which is pulled downwardly-by a spring 80L connected to a piece L64. Back of the plate D50, there is fixed on the shaft'Ol a disk ' D55 whicli has rollel's D30@ D32 ' D33. As the shaft 01 is turned clockwise on the. forward stroke of the ma10 clline, the roller D30 moves in a clockwise direction thereby permittin(y the hook L63 to drop and to be ready'to engage the r6ller onthereturnstrokeof-theshaft0l. When the shaft 01 turns backwardly, the liook L63 15 is I)tilled, thereby pulling the slide bar L51 toward t.he rear of the machine and ttirning the bell cra:nk lever L53, which results in drawing the transverse bar 66K toward the left side of the inaehine and thus releases 20 tfie numeral keys. The foregoing action occurs when the macliine is set for perforining addition as the niii-ner,il keys are released on the return stroke of the 01 shaft when addition is being per2,5 formed. The upwai,dly extendin(y part of the hook L63 coming in contact with the stud L.35 on the side plate of the machine effects the @elease of the liook L63 from the sttid D30 at a certain point of the retiirn stroke of 30 the shaft 01, whereupon the sliding bar L51 is retiirned to the right and assiimes the nor4i,.tl position shown in Fig. 5. Wben a subtract in- operation is bein(r pere@ forined, the numeril lieys are released at the 35 saine time and by the same means as pi-evlOlisly described for releasing said ntimeral kevs durin- an adding operation. ,4feam for releasing the nunie I ke? ra Is when a total or balattee, or sub-total or total de40 Posits is taken@When a total or balance, or sub-total or total of deposits is to be taken it becoiiies necessary to release the niimeral keys (Itirin(f the first 150 of the forwatd stroke of the shaft 01 and plate D50, the, fOllOwiDg 45 meelianism bein(r used for that purpose. When either of the keys K63, K64, is depressed the respective latches M6, 56L therefor depress the right hand end of the total cam 58L as shown, for instan . ce, in Fig. 6. 50 The left hand end of the total cam 58L by its en(ya(rement with the stud L21L on the subtracting cam L162- then elevates the said cam LI-62 ind the siibtracting cam lever 60L sO th,it they are moved from the positioh shown 55 in Fig. 5 to that appearing in Fig. 6. The repeat key link L61 which is pivoted at its rivht hand end to the latch L55 of the repeat key IC62 is nofmally elevated bv a spring 88L and has a. downwatdly project;'nO.' 60 part provided with outstanding pins L10, Lll. The pin Lll projects under the total cam 58L. .A- slid@ bar hook L64 which is pivoted at L64,1 to a downward extension on the slide bar stantially as shown in Ellis Patent , No. 112037863. A vertically arranged cam arm D63 pivoted at 15D is provided on its lower end with an 70 I antifriction roller D31 which is adapted to be encraged by the hooked end of the slide bar bolok L64 when the latter is raised, wli'leh condition -will prevail when either kev K63 or kev K64 is depressed. The cam arm D63 is 75 p@iled towara the disk D55 by a spring D84- When one of the IKeys K63, K64 is depi-essed, the dowiiward pressure on the total cam 58L restilts in the repeat koy link L61 being pulled doivn by the pressure on pin Lli 80 thereof which withdraws the pin LIO from beneath the tail of the slide bar hook L64 and permits the spring 80L to elevate the hooked, left hrind, end of said slide bar hook L64 as shown in'Fi(r. 6. 85 When the "parts are in this position and the machine is operated, the first part of tlle forward stro]Ke of the shaft 01 will cause the roller D32 to press the cam arm D63 to the left and thiis pull upon the hook L64, drawing go it io the left' and consequently pullin(y the slide bar L51 to the left durin(y the firs@t 15' of the forward travel of the p-late D50 thus releasin(y the numeral keys by the action of the slide"'bar L51 on the bell e'rank lever L53, 95 whereas under ordinat@y adding and subtractin- operations as the hook L64 is not elevated, t "' he release of the numeral keys does not occur durin!,r addin(y or subtractino, operation until the shaft 01 makes its return stroke. The: 100 roller D33 presses the 1-ioolc L64 down'wardly a-fter the niimeral keys bave been released. As previouslv described, the returri strok6 of the plate D50 brings the stud D13 into engagement with the lever L!67 and @@resse,3 it 105 against the stationary pin L20L which driws the releasin o, bar Ll 66 to the left, Fig. 3, and the I)rojecti7on A" then disenga- s the I I ,tteb e L56 from the total or balance ke-y K63. By a similar projection A... on the bar L166, the 110 latch 56L is rel(,,ased from key K64 7'he addi q or Iebit accui??itlato'7@.-In the drawings I have shown the operatin(y meebanism for the lower or "Dr." aceiimu-lator in Figs. 1, 2, 3 and 4. This accumulator may be 115 of the construction sbown in my Patent No., 1,536,757, (lated May .5, 1925. As previously explained the lower aectimulator ma-@ be a combined adding and subtracting accu'mulator such as set forth in the Ellis Patent No. 120 1,203,863. In the present description and drawings I bave not shown the controlling kevs for the lower aectimulator nor will soecific description be given of the means by which tlae adding crank N65 of the lower ac- 125 cumulator is rocli:ed to turn the sbaft IN which carries the cams 67NR that swin@r the lower accuinulator wheels into m(-sli with! the 'lower sides of the racks R,50 but ttie maniier 65 L51, has its right hand end overlying the pin of operating said accumulator will be clear l'-o
[10]1,731,701 from the disclosures of the Ellis Patent No. 1,197,276 and the meelianism shown in Fig. 46 of that patent and also Fig. 3 of Ellis Patent No. 1,197,278. It is only necessary, for the ion to state that rates the flving o the pin 18D of the crank alid t at there is a piece D52 similar to the piece D51, sq.,id parts being 10cated back of the plate D50 and serving, wlien 10 the proper keys, not shown, are set, to enable the lower accumulator to be used for purposes of additioii. Assuming, therefore, that the lower accu15 mulator is used as explained, it is possible with the present inveiition to subtract the total accumulation of the lower accumulator froni tlle amount added in the upper or "Cr." ,@ccumulator. 2 0 Su@btractin,g the amoup,t in th-- debit ac,-, c"?,ulator from the anwunt in the credit accu/mula4or.-For carrying on a subtracting operation, it is irnma,terial as to, what iiaeans is used to Iiiii@t the travel of the 25 raeks R50. If tbe'lower or "Dr." accuu-itilator is engaged with the racks R50 for the purpose of takinle a total while the "Cr," accuniulator is engaged with said @racks for the purpose of carrying on a subtractin(. 30 OPetation, it is evident that the wheels of the "Dr." accumulator will limit the travel of the racks R50 and that the precis6 extent of travel of the racks will be iepresented by a cor@esponding subtracting ol)era35 tion which will deduct the ainount froiii what is contained in the "Cr." aceiiniiilatoi-. Furthermore, if both of the accuiiiulators 'are coiistructed for both addition and siib- traction 9 it will be immaterial as to whicli 40 a.eeumulator is set for the taking of a total and wliieh is set fof subtraction. . The piece D58 whicli is shown in Fics. .46 and 47 of Ellis Patent No. 1,197,276 ai@id Fig. 3 of Ellis Patent No. 1,197,278 has a 45 pin D21 which is received in the forked en(i of the piece D66 which is connected to the end of the restoriiig lever D67, said pin D21 cooperatingwith the ank@ed piece D51. The pin D21 performs an addition,,tl functioii hav.5o ing to do with the @'overdraft" feltitres of the invention hereinafter described, its pur pose being to prevent ftirtlier addition when an overdraft has occurred. 'The manner in wliieli this is acconiplished will be 55 explained hereinafter. Overd?@aft nzechaitisiit and its operation. -When the total of the items subtracteci from the Lipper accumulator exceeds the total of the items added on said acetimulator, !!o a condition prevails which the meelianislii immediately signals to the operator so that the overdrawii co'ndition of the account becomes known. In Figs. 15, 17, 21 atid 22 diselostire is 65 give-n of only so much of the upper accumulator as will afford a clear understanding of how the overdraft mechanism operates in connection with the shift bar N90 and the subtracting pawl or hook N62 and add@n, wheel N50 and two point cai-ryincy caiii 70 g 6 of the highest order of the set of accuinulator wheels, .@he accumulator wheel N50 of the'highest order appears most clearly in respect to position, in Fig. 15, all of which elemonts appea,@ in Ellis Pateiit No. 7,5 1,203,863.@ It will be understood, liowever, that the adding hook or pawl, the controlliiig cam plates and other iiiechanisiil of the combined adding and stibtracting accumulator are omitted as they will be clearly ul,.- 50 derstood from Patent No. 1,203,863. Pivoted to the o@der plate 53N of the Iiicyliest oi-der by a stud N16, is an over@ir-aft lock latch 66N. A spi-inu, SIN wlilch cooperates with the overdraft lock latch 66N 85 and the order plate 53N, tends to swing tlil@ overdraft lock latch so that its poilit X' will move in a clockwise direction. This raoveinent is prevented when the shift bar N90 is set for addition as shown in Fi-. 17@ 90 rn there being a rounded projection X" on the overdraft lock latch which is press(-@d downwardly by tlle shift bar N90 when tlle latter is set for addition. Con@equently when tlle accurnulator is set for addition as 95 sliown in Fi-. 17, the pointed end X' per- zn forms no function. However, when the shift bar N90 is set for subtraction, as will be the case when the @-,tibtra@tinLy kev K67 is depi-essed and the ma- ioo chi-ne operated, the turning of the sliift bar N90 from the position showii in Fig. 17 to position sho,@vn in Fig. 21, relieves the pressure auainst the projection X" and thereupon the sprinff 81N turns the overdraft lo@ lock latch 66N 'so that the point X' comes against the rear end of the stibtracting pawl or liook N62 whicli arrests it as shown 'in Fio- 21. The ttirning of the wheel N50 Of tile Iiio-liest order either directly by rack lio R50 or b resulting in an nectimiiy cari@yin(I I lation of subtracted itenis, causes the caiii N56 to engaae the tip of the subtrictill(' pawl or hook N62 by moving from tbe'po@--' sition sliown in Fig. 21 to, that sho%vn iii i i,5 Fia 22, thus depressing the left h,,ind end of the subti-acting p-,iwl and elevating the right hand end thereof. This Iction restilts in the release of point X' so ttiat the spring 81N immediately swings the overdraft loel< 120 latch to the position sliown in Fit-M. 22 wliereupon it engages the rear end of the siibtracting pawl or liool@@. N62 and liolds it in that position uiitil releas@d as herein,,ifter described. 125 The iiiovc-iiieiit aiid position of the overd,raft lock lateii 66.N controls signals or locks and distincti.ve printin(, of the oN-ei@'(Ii-aft amount is Avill preseiitly appeai-. To titilize this movement there is provided an overdraft 130
[11]1,781,701 shaft N6 suitably joumaled in the side f rames a'nd of the machiiie carryinsr a crank N68 which has a pin Kli received in the slotted upper end af the overdraft lock latch 66N. 6 Stai@ting bar me(,,ktnisni.@The - starting mechanism f6r the electric drive inny be of the genei-al construction sliown in the patent to Perkins No. 1,136,165 although not preLisely similar thereto. A substantially circu10 lai-operating lever M56 is pivoted to the fraine at 14M and is provided with a retracting sprino, M83 (Figs.. 15, 16, 17). The link M55 operates means not necessary to describe. The three-arined pivoted lever M57 is the 15 controlling device for the electric 'motor di,ive. The starting bar M91 is carried by pieces M69 and M70, the foriiier being connected to the lever M57 and the latter to the eircula-r lever M56. Wlion the starting bar 20 M91 is depressed, the circular lever M56 is turiied agaiiist the tension of the spi-ing M83 and tlie,pin A157' releases the operative connection to the electi-ic di.- ive. On.iiioVing the haiid from the starting bar A191, the pai-ts are 25 returiled to @iioi-i-nal position by spriiig M83. The starting bar is nornially locked but is released wlien the controllino,'keys are operated, as set fortli, in fiie Ellis Z, paients. Only so iiitiell of this noi,m,,tl locking iiieclianisiii is 30 dis(!Iosed ts will illustrate this feature. A shaft M4 extends across the inaciiine to the iiiechanisin on the left side which is under the control of tile conti-olling l@eys. An arm M052 is seeure(I to shaft M4 and is pivotally 35 connectecl to a bellerank 1,)cking device M58 wiiieli is adtpted@o engage a squai@e stud 22M carried by the riiig-shaped lever M56. Lock oi@ sigpal foi@ stai,t@:ii.,q I)ag@ mee7ta@ii,3ii@.-Pivot,ed on the saine stud 18M which 40 cat-ries the lock M58, is locking lever M59. Secured to the overdraft -,haft N6 is a crank N68a. A long Iiiik- 6ON is pivoted at ISD to the cran.1c N68, and at its forward end it is pivo'teci at 18D," to the locking lever M59. 45 By this means, wlien the overdraft latell 66N is in either i-,i-ie position of Fia. 17 or Fig. 21, the locking lever M59 is dised gaged froiii the square stud 22M tnd lierice tlie usual lock M58 is the oiily one which locks the lever 50 M56 ind as said locl@ M58 is i-eleased by setting of the control]idg keys, there is iiorinally no intertereiiee witli the operation of the startin(r bai, A191. However when the wheel N50 of the higp,l, 55 est order has.turned sufficiently to depress tl-l(l a subtr etin(y liook or pawl N(;2, the overdraft ' t, latcli 6C)N n-ioves fi,oiii the po@,ition shoivn in Fig. 21 to the position s' ,iown iln -Fig. 22 wliieh r (;o results in a bac-],-wa cl turniiig of cranlc N68 and a backward tiiriiiiig of crank N68a on tlle overdraft sliaft N6. Thi-ou(yil the linl@ 60N, this iiiotion is coiiiiiiunicate(I to the lockinr lever M59 which is tlioretipon swtiiig so tli,,tt tj5 its lower end will block the tipward u-io-,,einent of the square stud 22M and hence the starting bar M91 cannot be depressed. By this meaiis thi@ operator is notified that cond itions in the upper acculator repi-eseiit an overdi-awii colidition of the acco-(tilt. and 70 the machine cannot be operated except by mani pulation of the decimal slide P67 ,ind tlle shifting of certain mechanisnis herein after described for the purpose of t[ii-ninothe overdrift shaft N6 to its norilial I)ositioil 75 to effect withdrawal of the lockina lever' M59 froiii the path of the stud 22M. Wheii this t)ccursi the startin(y bar M91 caii be opcrated . L oole or sign.al lor total og, ba7ance @,eys.- 8 0 To prevent the "balance" or total key K63 foithe iippei@ accumulator and the sub-total or total deposits key K64 from beidg operated when the upper accumul-,it-or repi-esents an overdi-afted condition nieans are provided 85 for iutomatically locking these keys wlien this colidition prevails, said means beincr oper ited from the overdraft shaft N6. R efei,rin(r to Fi(rs. 1, 2) 3, 4) 5, 6, 15, 19, and 20, there is prov@ded on the left hand eiid i)o of the shaft N6, a crank N68b. Pivoted oii tlle screws L19L of the latches 56L and L56 for the keys K6,1 and K63, are locl@s 67L and 68L whose lower ends aie positioned so that they cin be engiged with notches 167L iii 95 tli@ steiiis of keys K63, K64, -wliell said l@eys are iii elevated or n6rmal position. For the purpose of catisin,, tlie locks 67L, 68L, to engage the notches 16iL or to be i-eleased therefrom by the tiii,ning of overdrtft 911,:Lft loo N6, there is lirovided an operative coniieetioii --compi-ising a link 69L I)ivoted to the ei-aiik N68b and a lidk or slide bar 66L piA7otallv connected-to.link 69L at L241,. The Iiiii@ 66L s pivoted to sttids 18L on the til'Yper lo5 ends of-the locks 67L, 68L. Near the i,ear end of the slide bar 66L t-here is a slottp-d 1),Irt 66La which slides on a piii or stud L20L on tlle side frame of the niacliine, tliereby gitidiiif, aiid suspending the bar 66L. Nori-pally the lio crank N68b iS in the position sliowii iii Fias. 1, 21 3, 15 aiid 20 even ivhen the stibtractill(r 1,-ey K67 is depresse(l. When an ovei-draft condition exists iii the upper accurntilator -",hich causes the ovei-- ii5 di-aft latch 66N to inove to the positioii sliowii in Fi,),. 22 the ro ekiii(y of the sliaft N6 turiis the craiil,- N68" backwai-clly and IL-liereiipoji the loel(s 67L, 68L, are swup.- so tlii'L their lower ends en(rage the iiotches 167L is shoivii l@!( el in Fi(y. 4. This restilts in locl@iii, tli(-, Iceirs K63 and K64 so that tlic@ operitor caiinot t;ili:e -i total or sub-total andi, si(yliil is thus ),ivelll jiist a,s is. the case -\vitli the 1-)ar lock it the ae- 125 A159, indi atint@ to the operator tli, count is' overdi,awn and necessitatin(r the inanual operation of the decimal slide P()7 or such other means as iiiay 1)(-, eiiiploved to iinlocic the inacliiiie. When -4n overdraft lias tal-eii place, no I' .0
[12]12 1,731,701 f urtlier addition sliould be periiiitted in the aectiiiiulator. Refei-rincy to Figs. 1, 2, 3, 4, 15 aiid 20, there is provided a hook 69La, on the Iiiik 69L wliich is norii-ially free of the pin or stud D21 c,,trriecl by the piece D58 wliieli is pivoted to the fi-aiiie at 11L bitt wlleii ail overcli-@ift ocetirs iild tlle linli 69L nioves rearwardlv, the hook 69L'@, ernbraces tl-ie plii or stiid li2i wliieli renders the piece 10 D58 3'iiopei-ative, tlici-ebv 1.)rei,entiiig any additioii l'i-o,@ii takiiig pl@ce iii the credi:t aecurnulator. Refereiice is to be lia(l to rlllis Patent No. 1,197,276 for a iiiore dettile(I (liselosure of 15 tli(@ 1)1(@,ce D58 aiid its f Liiietionq. Aly inveiitioii is ilot Iiiiiited to tliejoint iise of a startilicy bar lock or signal and ,t total aiid key locli: or sl(,Ynal. The lock ii i lock @d arraiio-eiiicnt until the o 45 ret a n in e L@ p erat6r d6liberately releases them.wliieli is one by iiianipulatiiig the decim,,tl -,Iide PG7 or o et Stiltqble means pi@ovidod -fo,r 7that I)ui.-,1)6se. A. shaft. 11 which is stiitably 5o iiiotinted in bea s on the macliine frame carries -,t @eranlc l@60 wliieh is prok,l(l@d w- i-t'h oiie: or m6re: set screws so that it can. be ad]@ist(,,d,fo@ pi@t)per.operation. A horiz6iitall@ ,,@li(lal)le ,@,t lin-k- 73P whicli is pivoted to th6 (,,rink E60,.has its beveled forward end 'i 36P (t,i-i-ai)o,ed baelc of the decin-lal slide P67 in 'ti@ -be engaged by a double cqm A ,@;l ])Io, oii t6 c,,irri_ed I)Y,said (leciinal slide. Noi@nially the (lecillial slic@le is in its right liand position a,.i (;O, sho:wji fo@ instarice, in Fi(y. 9, so that there i,.@ no interference witli the forward movement of the set link 73P lvlle-n the overdraft SI-iaft N6 tlii,ns to,,Ai-ii" the ei,@inl@s N68@, N68b rearw,,ii-(Ily to loclz the starting b.ar M91 and ttie (;5 total ancl siib-total keys K63, K64. The set 20 is operated by ll,,tnd) iii,,ty be iise(I alone, or, tlle lock for the total iiid stib-total keys ma-.y be iised aloiie, or both lo(,ks iiiiy be providecl in the saiiie iilacliiiie, iii c,)nnection -,vitli means inhiell is op@r,,tted iilien an overdraft 25 occurs. My inveiition aIE-,o conten-ipl,-,tes tlle ])"Ovision of a visilal si,,,iial, stiitably displaye(I to atttict the operator's atteiitioii -ivlien an overdraft occui,s, said sicyiial bein,,, operated. 3o by the ovei-drift meeliaiiism. T,%vo embodillIeDtS of the vistial si(ynal ai-e liei-eiliafter described, both of ivliich ai@e actapted to print aii overdr,,Lft iteiii: witli a ( listiiicri-iisliiiig cliaraoteristic. One meelillt:,5 iiisiii I)rilits the overdraft ainount iii a di gtirigiiisliiiig coloi-, say i-ed; the other meeliam prii-its a-@i icleiitifyiii(,, si(I r sigii iii nis 1. nal o, C, 'coniiectioii witli aii o-verdraft aniouiit an is also, bi, r pr6fc, ence, ad,,tpted.t6 print sig,ils to show that an item is t total, or, silb40 11, tractecl iteiii, or that the iii,,ichine is cle.ar. s illoan, foi@ 2'Cleasinq tlte o@vei@dpaft look or 7(@@7@,,s.-As previously statecl, the startiilg linl@. 73P is moved to the rear to turn the shaft II and through the cranks 60E ancl N68a , N681, to unlock.the starting bar and tlle keys K63, K64, by moving the decimal slide P67 so that the c'am A thereof will en- 70 gage the tip 730P of the set link 73P. By this means, the machine is linlocked so that it n-iay be operated to print the nurnber represent-ing the overdraft or' the complenient thereof. 75 The movement of the (lecimal slide P67 to tinlock the machiiie alzzo sets ribbon meebanism for printin,,,r the overdr@ift in a distinguishing color, say red, as ivill now be described and it serves to prevent automatic so ttbuliting n-iovenient of the carriage of the macbine if the macbiric has the automatic t@tbtilatin(r inechanism; it also sets the signal bar lock and the total and slib-toi@l I-Vey locks' ing the decilyi@tl @lide P67. As in the Ellis patent aforesaid, a rocker iio or signal on the next operation of the ma- 85 cliiiie. The set link 73P is provided witli notches a, b, adapted to receive the end of a I)owed spring P86 whicli is coiinected to the, side plate of the pi-inting seetion and has an end encraged ivith a stud P34 thereof. This go detent mechanism holds the set link '13P in either'its forivard or rearward position, as s(@t, and pi,PN,ents accidental movement thereof. Pivoted to.the set link 73P by stud 14K is a triangtilar shape return latch 169P - ivith 05 which certain mechanism hereafter described cooperates to shift the set link 73P forwardly. Ribbon shift ntechanisnb and its - ope7@ation.-Referrin(y to Figs. 15, 17, 19, 23 and I(O 24, the ribbon, vibrator 51I is of the same cren -, eral construct-ion set forth in the Ellis Patent No. 1,19.7,276 but iinproved ineans v are pro ided to cause the vibrqtor 511 to be autom,,tticilly shifted @t ea 0 use distinctive 105 printiii@(,Y, say red, oll'the next succeedin(r operation of the m-,ichine after an ove rdraft and -,if ter the s hifting of tli@e @et link 73P by movfortli,@ startin(YI)ar (ol, liaii(Ile if.the inaeliiiie. I)rinter so that it will print an overdraft sign 56I pivoted at 18I to the top frame E45 6f michine is iised to vertically. vibrate the ribbon shift or vibrator 51I. Pivotally carried by a shaft 16IIa which is niounted in the iop frame is a double tocker arm 161I@whose rearivtrdlyextendiiig .irm is provided ivith two 8tuds 1111 and 1121. (Fi(rs. 23 24). Pivotally suspended f i,om the'rear of the ribbon @orked vibrator arm@ 56I is a ribbon sliift @arm 541 which bas hook slial)ed slots @a on its forward' nd rearward edges. respeetivel3r adapted to eng,,tge the tuds 111I and 112I, at different times. The studs 1111 and 112I are so spaced and- the width of the ribbon sbift arm 54I is stich thit said ,iriii can be sliifted forivardly or rearwardlv for the purpose of engaoem@nt with one of the sttids -,tt a tiine. A @l@ifting linIK 551 is pivote ' d to tli e ribbon shift arm 541. A leaf spi7ing 164 which is carried by a settable hub 32I Oil the 120
[13]1,731,701 13 sliaft 11, has a hooked or bent part at its iii)per end wbieli is received in a slot in a lat(@i-ally exteilding stitd or pin 15I carried by the shifting linlc 55I. There is thus provided a flexible ol)era-tina connection from tli(,@ shaft II to the ribbon nsbift arin 54I and the rocker 56I which opei.,ates the ribbon vibrator 51I. Norm:illy the Set lidk 73P is in its forward 10 I)OSition as shoivn in Figs. 10 and 11, for instai@ce, the shift arni 541 then being in the, position shown in Figs. 17 and 23, that is, engagecl with the sttid 1111. When thiis set, the pa,per feed lever P74 throuah the link 15 51P which is pivoted tliereto tt P135 and is alsb pivoted to the downwardly extending arm of the dquble rocker 1611, caiises normal operation-of the ribbon fork or vibrator 51I. 20 Wben the decimal slide P67 is moved to brino, its cam A against the end 730P of set link-73PI the rearward sliifting of the set link 73P from the position shown in Fio,,. 10 to that shown in Fig. 13, for instance, results 25 in backward swinging of the crank E60 and turning of sliaft II which not only unlocks the starting bar and the total and sul)- total keys but also turns the hub 321 and the spring I64 rearwardly and shifts the arm 541 from 30 the position sbown, in Fig. 23 to that shown in Fig. 1 24 so that the notch on the rear side of the arm 541 is enga,oed with the stud 1121, As the stud 1121 is lo@-atecl fartlier back from the shaft 161ja than the stud 111I, wli-In the 35 machine is subsequentl@ operated, the fork or vibrator 51I is elevated sufficiently to bring the other se6tion of the bichrome rib. bon, the red sectio'-n for instance, in position to receive the impressiori 6f ibe @rinting type 40 SO that a distinctive printing takes place. Referring to Fi!z,-,. 10, 12, 13, 15 and '17. pivoted to tlje riglit liajid side plate P50 ot the printincy (yrotip by the screw P23P is ,t retui-n latefi i6lP and a return levei- 162P 45 whiell are independently inovable and are flexibly connected together by a spi-ing 85F attached to studs 13P and 22F. The spritig 85F tends to hol . d th@ front side of the retiirn latch 161P again@@t the pin 13P on the rettirn r,o lever 162P. The purpose of relative flexibilit,y of the pieces 161P and 16@9P is to compensate for any uniistial strain which ivoiild result if the decin-ial slide P67 is in@ot iii prol)er position when the machine is opei-,tted as, for r)5 inqtance, if it is left with"the cam A engagecl wit,h the til@ 730P of the set link 73P. spring 86P connects the operatiiig i-ettit-n lever 162P and the clear signal level 61P at a suitable position to apply the i-equi60 site tension to the lever l6-9P to bold the lower @nd ol the-lever aga,inst the pin P135 ivhicli IS icari@ied by tli6 papeli- -feed lever P74. As I)reviously described, the set linli: or bar 73P is normally in the position shown in as Figs, 10 apd 34 but when an overdraft haw occurred and the macliine is locked, the operator sh'fts the decimal slide P67 to cause the cam A to engage the end 730P of the set link 73P to sliift the set link 73P rearwardly to set the ribbon meelianism so that on the To next operation of the machine the iteni representid g an ove@draft will appear in a distinctive color, say,.red. For the purpose of returiiinthe set lijik 73P to its normal positioiil the latch 161P aDd the return lever 162P 75 ai,e pi-ovided. When the machine is operated, the turning of the 01 shaf t causes the pi'iiiti D,,@ piti-nan 061 to turn the crank 0160 aild as ihis is fixed on the'same shaft with the papei- feed lever P74, said lever is turned 80 frorn the, positioii sliown in Fig. 12 to that of Fig. 13. The lowering of the stud P135 c,,Lus es the tail of the return lever 162P to folloiv it b reason of the tension of spring 86P and-the return latch 161P finally passes 85 beyon d the i-ight hand end of the pivoted lateli 169P carried by the set link 73P. Tliere fore, on the return of the parts to the - norinal position shown in Fig. 10, the lateli 161P enzages the latch 169P and first shifts go the set link 73P back to the normal position of Fi(r zl:ll 10 and then slips ast said latch 169P. Th e forward stroke opthe parts resiilts in the paper feed lever P74 pullin- upon the link 51P an(I rockina the double rocker 161I for the pui,-pose of @Ulling do-wnwardly the depeii ding arm 541 and thus elevating the ribb on vibrator 511. On the rettirn stroke of tlle parts the paper feed lever P74 pnshes on the link 51P and restores the ribbon vibrator 51I to'normal positioll but without effect on the sliaft II becatise of the use of the yieldinspi@ino, 16-1 -",hich prevents transmission of it)otionnto said shaft Il. The foreg6ing n-iovemeiits. occur when 105 iiuinbe rs are being added, stibtracted, or listed @",itli out being, printed in a distinctive color 5 as und6r oi-dinary conditi.ons of operation. The ad,,tptability of tbe.arm 54I to shift so that the levera@e applied thereto in pullin 110 said arm 54I d@Nvnwtrdly will deterinine t extent of downward moveriaent of said arni 541, resiilts in the oi-dinary; or in an unusual, extent of moveinent of'the ribbon fork 51I accor din(r to the inattire of the operation. 115 Witb(riit i-estrictin(y this pai@t of the invention to dimensioiis, in practice, if the ai-m or linlc 54I is en(ra(red with the ttid 1111, which is the iiormal coiidition, this stud bein(y located ne,,irest the sbaft 1611a, the upward 120 travel of the ribbon 7 when the machi'ne is operit ed, is ,ibotit 5 mm., wliereas if tl@e arm or linlc 541 is eiigacred with the stud 112I, the greater distaiiee of stud 112I froni shaft 161j a , restilts in a@oiit double the tipward 125 shift of the iil)l)on, say 10 niin. Conseqtiently by tlle use, of a bielirome ribbon arra ' ed so ng that the more distinctive color is lowei-most, disti nctive printing, as when an overdraft occurs, will only take'place whoi@ the shaft 11 130 96 100
[14]14 .'is turned baclcward. This occurs by shifting the'slide bar or set link 73P by movino, the deciiiial slide P67 so that the cam A enjaues the end 730P. . Mechan,isnz, for effecting distinetive pi-iti,tIlllng b; cariiage position.-The shaft Tl may be turned without shifting the decimal slide by improved means arranged to be operated when the operator returns the carriage to the 10 credit, or any desired, column by the use of a. shiftable nianually h6ld stop on the carriage so that the first following item printed by the machine will be in a distinctive,color as, for instance, red, to denote a credit item 15 iii departmeiit store work, fof inst,,tnce. Reference is to be bad to my Patent No. 1,550,945 in this . connection and to the followin(, mechanism. Referring to Figs. 1, 2, 3, 15, 27, 29 and 32, 2o the shaft II is provided with acrank C on its left hand end which is normally disengaged from the crank N68b that operates the loclcs for the keys K63, K64. Tbere'is pivoted to the left hand end of the plate F554 (Fig. 32) 25 of the tabulat-ing section of the machin4,, a @mall bell crank lever Cl whose upright arm is connected to the upper en4 of the crank C by a link C2. The other arm of the bell crank lever Cl has a pin aiid - slot connection 30 C3 with a link C4 which is pivoted to the rear end of lever L53L disclosed in my Patent No. 1,550,945. Pivoted at F23F to the reat face of the plate F554 is a bell crank lever F64 whose horizontal arm lies under@@j neath the lever L59,L and whose upriglit ari-n carries a horizontally arranged hook F65, pivoted to the bell cranIK lev6r at F20. En"ao@ed with the hook F65 is a -pull strip 60B @7iiieh has a turned up end 6OBa: 4o There is provided a 'Rxed stop or abutment X93 on the plate F554 a(vainst which the tilirned up end 6OBa Will Strike when the pull. strip 60B is moved to the right' Fi(y. 9)2. The, rack stop bar which is carried by the 45 traveling ca,@riaue of the Ellis machine'ap pears at C91. The purpose of this bar is to carry, in any positipri desired, the settable stop is lowered so that it may eng,,t.@e the upturned end 66Ba of the pull strip 60B. In department store ledger work, where credit items such as partial or ftill -payments or credit for the return of an article, are to 70 be printed, these amounts sliould be deducted from the balance due from the clistomer to the store. -To enter such an item, the OP7 erator presses a(Tainst the lever 5OX which brings its point in,lifte with the upturned 7r, end 6OBa and in the operation of movida the carriage to the riaht, the strip 60B is thereby shifted until stopped by strikinr the abutment X93. My Patent No. 1,550,945 sets forth rnechaiiisni operated by the bell crank 80 lever F64 by which the subtraction IKey K67 is depressed when the lever 5OX is engaged by the fin(yer of the operator and brotight into contact with the end 6OB4 to pull the -,trip 60B against the abutment X93. No 55, claim is made to tl-iis mechanism in the present application but by combinin- with this 'mechanism the connections heretofore de@eribed leading to the crank C on the shaft 11, when the hook F65 is pulled to tlie'ricrht go Fig. 32, the link C2 causes the sliaft, ii to be ttirned to draiv baqk the link 55I and swin(,/' the arn-i 541 into enga(yement with the st@l/d 1121 (Fig. 24). Thiis-, the ribbo'n mee@aiiisrr.@i is set so that when the credit item, in 95 this class of work, is printed on the next operation of the machine, it will be printed in a distinctive color, for instance red. The operation of the machine restores the ribbon mechanism to normal position. The 100 crank C may be made to cooperate witli the crank 'N68b in lieu of using the crank 60E which cooperates with the crank N68,% as previously described. Tabulatin ',q. mechanism.-The mechanism io.,; by wbich hand and automatic tabulatiorl of the carriage is effected appears in Figs' 8 to 14, and 26 to 31. The tabulating section of the machine is carried by a plate F554 he liand opei, tabulating key appears -at K60, the tabiilating lever is shown at F607, aiid the automatic or adju@table stops by which the different'tabul,,ttin LhookappearsatF256whichlatter mechanisms of the machine are contrblled ac- hook is prvoted to the printing pitman 061. Referring more particularly to Ficrs. 26 to 31,thetabulatino,sto v - p 7hichisopei-atedfroiii the typewriter keyboard if the niacliine is a eombination typewriting and addii-i(r niachine, is shown, at F72 and is raised wlien de@ired by a long tabulatino-, kev F166 ivhich extends down to the typewriter ke3,board, said key appearing in Figs. 26 and 27. Pivoted to the plate F554 at F22 is a lever F160 which engages lever F59 pivoted to pl,.ite 25 F554 at F21 as shown in Fig. A sprin(, F81 which connects the levet F59 to a stud B11B on plate F554, holds the stop F72 normal@y in lowered position. The tabulating key F166 for the typewriter 1 3 0 65 aoainst the lever 5OX, the toe or point of the keyboard of the rjaachine has no connection 50 cording to predetei-inined positions of the carriage. As slionvn in iny Patent No. 1,550,945, a stop XC95 may be used on the carriage bar C91 to cooperate, when set, -with the hook F65 for the purpose of turniilcr 55 the lever F64 for purposes set forth in that patent. Amother stop XC96, whieh has particular reference to the mechanism for settincr the ribboii to cause distinctive printing, i@ ad00 justably-earried by the bar C91 and has a lever 56X pivoted at b'. A spring is proyicled so that the le-@er 5OX is normally held in the inoperative position shown in Fig. 32. When the finger of the operator is pressed
[15]1,731,701 with the tabulating mechantsm now to be described. A suitable stop'on the carriage ivill come into.eng-,igement with the sto@ F72 wlien the carriage is spaced by operating the typenvi-iter keyboard tabulating key F166. Slidably mounted in a groove on the plate F554 is a carriage release pludger F262, Fig. 27, wbich is provided with a pin F13, Fio,. 28, arran(,,ed to be engaged by the !ever F59 wlien 10 the latter is depre@sed by the operation of the tabulating key F166 to tliereby draw down' the I)Iun,,Yer F262 when the stop F72 is elevated. A bell crank lever F51, Figs. 26@ 27, 28, bas 15 its end engaged witli the lo)ver en(I of the plunger F262. A link F52 connected to the be.11 ei-,ink lever at F15 is connected to the carriage escapement meebanism it the back of the machine so that the depression of the 20 pltinger F262 releases the escapement to perly.iit the carriage to tabulate. Referrin, to. Fic,. 27, pivoted to the plate F554 on a screw F6 are two levers 155F and 151F both of which engage the pin F13 car25 riedbythepluncrerF26@. Asprin(YF87coi-inected to the plate F554 and to a, pin F6F on lever 151F draws up the right hand end of the lever 151F and depresses the lef't, hand end thereof when'tbe parts are in normal condi30 tion. The action of the sprin(, F87 on lever 151F bolds the left hand end of the lever, Fig. 27, in engagement witli a pl,tinger oper-ing or setting lever 5OF whose end appears in Fi(r 26. 35 T,he tabtilating lever F667, Figs. 26 and 27, is pivoted at 0122 and has an open or linksliaped upper end 19OF which receives the left hand end of the lever..50F as shown in Figs. 26, 27. The tension of @pring F87 nor40 mally holds the lever 5OF in th,e position ,,hown in Fig. 27 and the tabulating lever F667 elevated as shown in Fig. 26. Pivoted at 17F to the tabtilating lever F667 is a latch F56 which is provided with a lip 45 that arrests its upward i-novement; this latch is lield in the position shown in Fig. 26 by ,;pring SOF-which connects it to the tabulating lever F667. The tabulitipg key for the addino, ma. r)O chiiie keyboard appears at K60, said key being lield in raised pol.15ition I)y a sl)ring K72 ancl provided witli a stud 16K adapted to enf,ril,,e the latch F56. The spring K72 is adapted to be adjusted so that after the tabu55 lating key K60 is depressed and has pressed down the latch F56 and the tabulating lever l@'667@ the stiid 16K will beeon-ie disengaged from the lateli F56 at a suitable time. The depression of the tabulatino, key K60 60 L-5 wili result in the engagement of the lever 151F with the pin F13 and the drawing dowii of the pluncer F262 and turning of the lever F51 wliieh will release the escapement mech65 'anism so that the carriage can tra*el to tabulated position. For the ptirpose of arrestin@ol, the cirria-0 in the desired tabulatin(, position Nvben the key K60 is depressed, th@re are provided tabtilatingpliingers 53Fandl54FFigs.26,2 29, 30. The carria(ye of the maebine carri,,, a stop wbich is adapted to engage the plun(rer 153 F and then the plunger 154F, the latter b,, Lving a novel relationsliij) to the plunger 153 F for the purp.ose of preventing "chattering " of the cai,ria(re or its i-ebounding froiii 75 tab ulated position and ilitis overcoinin(r lvhat 'ha s heretofore been t defect as it will be tin derstood that the carriage strikes its stop wit h a considerable blow and the tendency is for it to become displaced from the exact 80 tabii lated position desii-ed. The pluii(yer 153F -wh;.cli colistitutes the mai n stop for the carriage, hts a piii and slot con nection F7 at its lower end with the lever 151 F N,@hereby when the tabulating l@ey i@60 85 is depressed, the movemedt of the lever 5OF resu lts in the @levation of the lever 131F aainst the action of spring F87, thus raisidg the plti@ger 1,")3F. The pltinoor 153F is latel ied in its raised position by a-latch F54 90 pivo ted to plate F554 at F139 and havinff its lioo ked lower end pressed toward the lower end of the I)Iunger 153F by a spi-ing 86F connect ed to the plate and to the latch. In order to permit the carria(re to be moved 95 past tlio pliinger 153F when it is in elevated posi tion, the @in and slot connection F7 is pro vided and the plunger is made adaptable to yield downwardly and to spring upwqii,dly agai n by, the pr6vision of a spring 83F wliieli 100 en(r ages a pin F9 on the plunger, Fig. Tlle siipplei-nental pliinger 154F is pivot,ed at its low.er,end to the lever 155F by a rivet FS, Figs. 27 and 30, and it is drawn towird the lef ti Fig. 27, by a spring 84F connected 105 to plate F554. The plunger 154F is latched whe n in raised position I)y a pin 7F projecting from a plate 156F which is pivoted at F9F to plate F554. The pin 7F enters a notch in the edge of the plunger 154F when said 110 pltin (yer is raised because the spring 84F pulls said plunger to the left, Fi(r. 27. Wlien the tabulating key- K60 is depressed the plungers 153F and 154F are raised which imni ediate@ y releases the escapement through tliedepression of the plunger F262 and tur'ning of the bell crank lever F51. The carria(,e then jumps until the stop tliereon is arrested by the pltin(yer 153F. The bloiv deliv6red by t@ 120 the said stop to the plunger 153F causes the low er end of hook F54 to become disengaged fro m the stud F8F, thereby a ' Ilowinlg the lever 151 F to be lowered by the sprin(y F87. After this moven@ent the plunger 153F assumes its 12 @ nor mal positiort shown in Fig. 27. When the carr iage strikes plun-er 153F, said carriage reb ouiids, the rebound bein(y then t,,tken by the plun(yer 154F while the plunoer 154F is in still in elevated position. Plunier 154F is 130
[16]1,731,701 then released 4nd the escapement and carria(,6 issunie normal positions. Aii-tomatic tabuzation and control thereof.-As previously describ@d the tabulatin(r 9 hook F256 Figs. 8,10,12,13, is carried by ive printing pitman 061. The iabiilating lever F667 has a stud 19F which is adapted to be enuaged by the tabulating hook F256 on each operation of the 10 niachine ,trid this will ordinarily result in the tabulating lever F667 being pulled down and the lever 5OF tiirned to elevate the plu,naers 153F7 154F, just as would occur were the tabulatin, key l@-60 depressed. Consequently on 1,5 @he rettirn stroke of the shaft 01, the tabulating hook F256 will cause tabtilation to take place automaticallyTo prevent autoinatic tabulation from occurrinu on the next operation of the inachine 20 after an overdraft has occurred or at any other time when automatic tabulation is not desired, as when t.he decii-nal slide P67 has. been moved from its normal position for the purpose of shiftin(,r the set link 73P and re2,5 leasino, the locks, there is provided a control lever 00-150 (Figs. 8 to 14) which is pivoted to a stud 00-10 oia the side frame of the machine and is provided with an upriglit extension or arm 00-51 which is so arranged, as 3o@ shown in Fig. 9, for iiistance, that it is norinally encraged by the dedimal slide P67 when the latteris in its right ha'nd position. The control lever or cut out 00-150 is connected by spring 18OF to the frame at 00-53, as 3q shown iii Figs. 9, 11, 14, for instance. The spring 18OF tends to draw the control lever or cut out 00-150 from the position shown in Figs. 9 and 11 to the position shown in Fig. 14 biit the decimal slide P67 by its engag@- 40 ment with the extension 00-51 normally.precoiitrol lever 00-150. Consequently, th3 piii 19F on the tabulating lever F667 is exposed to the tabulatin(, action, of the hook 45 F256 on each operation of the machine unless th,e decimal slide P67 is moved - sufficient-ly from the position shown in Figs. 9 and 11 to permit sa@d control lever 00-150 to prevent this actiola. 50 - The control lever 00-150 is provided with a hooli:ed end composed of the parts 00-1501 and 00-1502. When the decimal slide P67 is moved f roni its right hand position, the pressure on the extension 00-51 is released and 55 the spring 18OF then draws tho, hooked end of the control lever over the stud 19F on the tabulating lever F667 as hown in Fig. 14, which results in guarding the pin 19F from rement by the tabulating hook F256 and enga@, itutomatic tabulation is thus prevented. In,ismuch as the decimal slide P67 is niov,ed I)y hahd fron! the position shown in Fig. 9 for the ptirpose of releasing the machine :ifter an overdraft has occurred, the cut 65 out lever 00-150 is immediately positioned to prevent automatic tabulation when said decim-,tl slide is nioved to the extent of only one point to the left from its position i-n Fig. 9. Regardless of whether an overdraft con- 70 dition of the inachine has occurred, autoinatic tabulation can be prevented by merely n-ioving the decimal slide P67 sufficiently to enable spring 18OF to cause the hook 00-1501; 00-1502 to mbve over the stud 19F i@q to block the engagement of the tabulating hook F256 with said stud 19F. No el,,iim is niade to the tabulating section per se as sliown in Figs. 26 to 31 inclusive of the drawings. The tabulatinz i-nechanism 50 is, however, claimed as novel in respect to the maniier in which it is combined with otber mechanisms of the machine such, for instance, as the deciinal slide, overdraft mechanism, ribbon sbifting mechanism, lockitig 85 mechanism; and, also, the sign or signal @i-inting mechanisin now to be described. Signal p?in,ting mechanism.-In Figs. 34, 35, 36, 37, 38, signal printing mechanism is sliown eiiibod3,ing improvernents on the 00 sional iyiechanism of the EHis Patent NO. 1,065,792, June 24,1 1913,1 and, also, ]novel means for printing a sio-n opposite an item whicli represents that a corresponding an-iount has been sttbtracted fron@ the am6unt 95 or amotints stored in the accumulator or accumulators. Figs. 34 to 38 also disclose novel iiiechanism for printing a sign opposite an item representino, a credit balance or what is known as an I'@verdraft" item, or. the com- 100 plewent of such it,eill. The mechanism last specified affords a printing signal 'or distinguishing characteristic which identifies a ei-edit balance or "overdraft" item not only on the outermost sheet carried by the patent 105 Tllis sigiial I)rinting mechanism for a credit balance or 44 overdraft" item therefore ihark's tli6 given item on all the sheets so as to identify that item dside from its identifi,cat-ion by lio being printed in a distinctive color as previou ly explained. The mechanism diselos6d in Fi-s. 34 to 38 for identifying a credit balanc@' or "o*erdraft" item by printin- a. special sign or 115 signal adjacent said item may be used separately Iron the special distinctive color or ribbon sllift mechanisni hereinbefore set forth, or employed in the same ma chine with said distinctive color or ribbon shift mecha- 120 nism. Th@ printing of identifyina si-,ns or sianals opposite items representing @he -totals or subtotals taken from the debit and credit aecumulators is effected in substa-ntially the 125 same manner as set forth in the Ellis Patent No.. 1,065,792, June 24, 1913. Novel mechanism addition,,il to, the mechanism of Patent No. 1,065,792 is herein provided for operatihg . the signal printer to identify an iteioa rep- 130: vents the spring 18OF from thus moving th,e - but, also, on all carbon copies being taken.
[17]1,731,701 17 resenting a subtractiug operation. Other novel mechanism is provided, operated by tile "ovet-draft" niechanism, for operating or settiiig the si,,,@nal printer to identify a credit balance or "overdraft" item. Referi-iiicy to Fi(ys. 34 to 38, the plateii of the maeliine is sho-vvii at'P. The cams which swing the frames 51N-56N carrying the accuiiitilator w ' heels N50 to cause said wlieels 10 to enga-e or disenLyaLre the racks R50 are secui,ed to the shaft@T,@l and 1N of the upper aiid lower a,ccumulttor. The upper caiii N67R. has a pin IIA, and the lower cam 67NR lias a sin-iilar pin 11A. A forked ariii 60P 15 which is pivoted at PIOP is normally free from engagen@ent by the pins 11A of both cams N67R. and 67 R as shown in Fig. 34. The cooperation of the pins IIA of the upper ajid lower cams with the forked arm 60P is 20 thi@ same as explained in the Ellis Patent No. 1,065,792, the pin IIA of the upper cam N6tR being adapted, when said cam is moved, to swing the forked arm 60P a, sborter distance to the left than will occur wlieia the lower 25 carii 67NR moves. These niovements are transmitted to the signal oi, si(,Yn pi,intin- arn-i 65P so that either a "D :: sign will be brotight into line to print, or a C" sign, as the case may be. so Sign pi@inting arm 65P is pivoted on the saine center P10 as that of the right hand printin- type segment P54 of the printing 'group, the sign printer and the right hand segnient P54 being carried by pivoted arm 35 P52. Each printing segment IP54 is operated by its own link P53 as will be understood from the Ellis patents, for instance, No. 1,065,;92. Pivoted on.the screw tin PLOP is a lever 40 61P to which reference as heretofore been made, said lever being connected to arm 60P by a coiitractile coil spriirig P88 attached at Plipi the tendency of the spring being to draw the lever 61P upwardly.' As di@tin45 guished from the operative connection betweeii lever 61P and the silynal printing arm as set forth in Ellis Pat@nt No. 1,065,792, there is provided a link 23.55, said link being provided with a sloi 23a a.nd having pins 23.12 5o @nd 23.13. A stud 23Pl7P is carried by the lever 61P and projects into the slot 23". A contractile coil spring P81 has on6 end connected to the pin 23-13, its other end bein-,, attached to the stud or pin 23Pl7P. T@is 55 spring tends to normally pull the link 23.55 dowriwardly so that the upper end of the slot 23a abuts the pin 23Pl7P. Pivoted on the screw pin PIOP back of the forked arm 60P is a bell craiak lever 23.52 60 who,3e horizontal arm bears 'on the stud 23Pl7P. The bell crank lever 23.52 has a pin 23.52". A contractile coil sprino, P80 which is connected to the pin 23.52a i@ Of SUffieient strength, wben stretched by the movement of 65 the bell crank lever 23.52 to the position sliowii in Figs. 35 and 37, to overbalance the spriii o- PSI ,ind to therebv overcome the tendency -of said spring to araw down the link 23.55 and coiisequently, when the bell crank lei-ei- 23.52 is tliiis shifted, the sional printing 70 ai,in. 65P is sliifted so tliit the signal used to identify a stibti,acted item will be brought to the pi-inting line. The sliift bar N90 carries on its right hand eiid aii ariii 23.54 to wbich is pivoted a link 23.53 li,,ivin(, a fork which sti-addles t stud 23.11 carried by the downwai,dly ext-ending, arm of the bell crank lever 23.52. Exrept wlieii a stibtractiiig ol)eration is bein(-r carried on, the shift bar N90 lies in the positi4@n shown 80 in Figs. 34 and 36 and the spring P80 actuates the bel-I crank lever 23.52 to hold the stud 23.11 iii the rear end of the fork of the link 23.53. 117lieii an operation of subtraction is cari-ied on, as hereinbef ' ore described, the 8i sliift bar N90 nioves to the position shown in Figs. 35,and 37, this actioii putting the spring PSO under stich tensioll that it overbalances the sprin.- PSI and elevates the link 23.55 and moves t]@ie sirnal printer 65P a greater dis- go tance thaii it would tr,,tvel if the shift bar N90 was not operated althougb a printing operatioii was taking place. Consequently the signal printing arm 65P travels a greater distance wben a stibtractin(f operation 'is per- gli fori-ned tllan it does wl;@n other operations take place. A (leteiit 62P, wliieh is pivoted at P14P has its loiver end adapted to cooperate with t he paper feed lever P74 iii the manner set l oo fo rth in Patei-it No. 1,065,792. A contractile c oil spring P85 which is attached to' a stud P 12P on the lever 61P aiid to a stud P13P on th e detent 62P tends to ttirn the deteiit 62P in a clockwise direction. The detent 62P is 1 05 p rovided witli notches 1, 2, 3, which are a dapted to eiigage the stud P12P to lock the le iei, 61P, according to the position of the la tter, wlien the paper feed lever P74 has m oved. 1 10 If the machine is set for the performance of addition, at the time the paper feed lever P7i moves, the detent 62P is swung its spring P85 so that the iiotch I ena the pin P12P and thus bolds the signal pr nting il5 arm 65P in inoperative I)osition so that no sign or signal of the series carried ther'eby will be brotiglit to the printing line. If the machine is set for taking either a "Dr." total or sub-total, the movement of the 120 forked arm 60P shifts the lever 61P and the iiotch 2 then enga(,Yes the pin P12P and locks the lever 61P and the link 23.55 so that. the printing arm 65P is held in the prop@,r position to print the sign or signal, for instance 125 "D" ' If'the rnaebine is set to take a "Cr." total or sub-total, the forked arm 60P is n-ion,ed as explained in t-he Ellis Patent No. 1,065,792 ancl the lever 61P is correspondingly moved and notch 3 then engages pin P12P so 130
[18]is 1,731,701 that the proper @ign say "C" of the printin arni 65P is locked in posifion to be brou to the printino, Iiiie when the inacliine is operated. zn 5 The slidable set link 73P is providecl with a dependin,, cam plate P90. The lev@r 61P has a roller P91 which is so disposed when the set link 73P is in its norinal position that it does not interfere wiih the roller P91 and 10 there is no interfefeiiee with the usual iiiovements of the lever 61P. Wheii, ho-%vever, an "overdraft" has occurred, tlie operator i-, apprisecl of that fact by the locking actions liereinbefore set forth and it I)eeom'es iieces15 sary for the decimal slide P67 to be i-novecl to its extreme left hand position for the piirpose of causing the can-i A to en(raae the point 730P of the set link 73P. 'This results in shifting the set link 73P rearwardly 20 to the position sbown in Fig. 36 wliieh brin(Ts t,he cam end of the plate P90 over the rol]7er P91 and irito en-agement tberewith, thus depressing the lever 61P. As the normal tendeiicy of the spring P81 is to piill the link 25 23.55 downwardly so that the upper end of the slot 23a is against the stiid 2'DP17P, this action of cam P90 on roller P91 results in swingin- the sio,@nal printer 65P to such position that -when the machine is operated a 3o stiitable'identifyiiig or di,-,tinguishin@ sign, stich as "Cr.". which has been brought to the printina line, prints opposite the over(Iraft item. IAssuming tl-iat the ribbon shift mech,tnism heretofore described,,is used, the identiSt; fyiiig si,-n "Cr." will be, printed in a clistino,,uishin(p color, say red, on the "oriainal" or outer sbeet on the platen P and it -will also appear on all carbon copies beino,, taken so that overdraft items are ideiitified on all 40 cdpies, just a@ total, sub-total, and siibtracted items are identified by their respective signs as previously described. . The preci se signs used to identify totals, stib-totals, subtracted items, ,tnd overdraft 45 iteins may vary as any desired sians or signals may be employed. I liave shown and describe(I printing ty-De stieb as "Cr." for a credit balance or overdraft item idelitifying mark; "D" as a mark or signal i,epresenting 94CY7 5o the contei-its of the debit accumulator , as a signal to represent the contents of the credit Lccumulator; and "S" to represeiit a subtracted item. Gen(,ral operation.-An "overdraft" is 55 manifested in the machine by the locl;cin, of the balance and total keys K63 and @K ' if 64 the machine is provided with locks 67L, 68L, or, if the mael-iine is provided 'with the lock M59 the operator is un,,tble to depress the 60 startin@ bar M91; or, if both of the lockin(y meebanisins are employe,-I, the operator i"s tinable to depress eit,her the total or baladee key K63, or sub-tot,al or total deposits l@ey K64, or the starting bar-,AI91. If it is as(15 sumed, for instance, that the locks 67L, 68L7 are present in the rnachine and the operator lias set up an arnount, or ,t series of items totaling, say 525.00 the credit add key (not shown but which appears at K65 in the Ellis patents) isdepressed, and the starting 7,3 bar Iki9l struc'k to cause the iiiachine to operate. The amount, 525.00 whicli has been added in the credit aectimulator, is now printed on the papei@ earned by the platen of the machine. Let it be assumed that it is desired to subtract the itei-n 675.00 from the total aceiiiiiulation carried by the creclit accurnulator -",hicb, as has been specified, is 525.00. I-laving set up the number 675.00 on the nuinei-al keys aiid the credit subtraction IKey 80 K67 havinfr been depressed and the starting bar M91 struck, the amount 675.00 is printed and is subtracted from the accumulation in the credit aectimulator. The operator now desires to find the balance 85 of the account. Normally, on depressin(y the balance or total l@ey K63 and operating the inaeliine by str,il@i@(y the starting bar M91, the operation of the machine will show the 1),ilance i-epresented by the difference be- go t-ween the previous total or aectimulation. an(I the item subtracted therefrom. In tl-ie I)resent ex,,tn-iple, however, the item to be stibtracted, 675.00, exceeds the amotint, 525.00, previously contained in the accun-iulator. i);s T-n brief, in the example set forth, the subtraliend (675.00) is greater than the minuend (525.00) which constituti@s an"overdraft". The maebine, as previously explained, has therefore caused the loelks 67L, 68L, to op- ioo er,,tte and wben the operator touches ihe bal@ ance li:ey K63 he finds th',It he cannot depress it @ind a si,(,Ynal, is thus given to him t-hat an overdraft has occufred. It then becomes necessary to restore to 105 normal position the locks 67L. 68L. Asstin-iing that the decimal slide P67 -which is operated by the slide B53, Fig. 25, is in its extreine rigbt baiid I)osition as shown, for instance iri Fig. 9, the operator shift thd 110 decimal slide to its extreme left hand posithus relea@ing the locks 67L, 68L, -whicli permits the balance key K63 to be depressed. In the Ellis machine, however, the decimal slide when in its extreiiie left hand positioii 115 also etits off the operation of, the printing mechanism so that the items may be added or subtracted without their being printed, as explained in Patent No. 1,197,276. ConSe- 120 qtiently, in order to print the result of the ',ubtraction of 675.00 from 525.00, it becomes necessary to rettii@n the decinial slide to the extreme right hand position. The total key K63 is then depressed and the starting bar I 5 M91 struck, whereupon the machine prints in red or other distinctive color, the contents of the credit accumulfttor which is then 'rel)re'soi-it,@d by the niimber 9,999,850.00 which represents the coml)lement of the net-amount 2--i
[19]1,731,701 19 of the overdraft as showii in Exaniple No. 1, Fig. 39. Havin(y the coiiapleiiieit of the net aiiiotiiit of theo@'ei-dr@ft, it is a siiiiple iiiatter to iiiimediately learn wliat is the n?t aiiiot,.iit of tli(I overdraft. The iiext aiiioiint of the coiiipleiiie.nt. niiinbei, is b I)ea@niiiii, it the exti-eiiie left liand figiii-e ind addiiig to eacli figure in successioii enough additioiiil to 10 iiiake 9, e-xcept tliat' iii tlie, figiii@@, eiiotigli 'licii tl, as'Lsliould be adde(I to iiiike 10. IV @e I riglit hand figtii-e or are cil)llers, tlie@, ai-e disregai,d2d aiid enotigli is addecl tf) itial@e 10 to tl-ie last fi(,,ure ivl,.icli is n(,t ,t cipliei-. 15 Taking for exaiiiple the specific aiiiotiiits liereinbefore given, the coiiiplei,.ient, (if tlie,iiet amotint of the oi-ei-di@aft beiii@@) 9,999,8,')0.00 we begin at the left ban,,l ntii'noral anci ad(I enoiigli to each niiiii?ral iii stecession 20 9. In the coii-ipleiiierit abol7e iioted the firgt four numerals at the left ,ire already' (,), so that they can be dsi,e,,arded and to tile iiext numeral 8 it is necessary to add I which is then set - down. The ijext niiiiieral is 5 but 25 as this is the list significant fi,),ure it is necessary to add enotigli to iiiake 10 ancl consequently 5 is set doivii. Tll@ reiiiainin(- col. umns are filled otit by aiinexiii- ciphers. The net aiiiount of the over,,Iraf'L is tliei-c.- 30 fore easily fotind to be 150.00. If it is des@red to fi-Lire the uet aiiioiiiit of an overdraft I)y ol)ei-atin(r the tlii,, can be done in tlio folloii- I i iig til@ij'iu the foi-e-oiii(, iteiiis o-f 525 00 for tic iiiiiit,@eiicl 35 and 675.00 for the stib'(-raliend. The c-oiiil)le@ inent of the over(',-.@aft wliieh is 9,999.8,-)O.oo is transferred froiii tl,@e ul)per or'cre,,'I;@t accumulator into the lower oi- deb;t aceiiiiiii. lator, assul;iiiicr tl-iat the debit aceiiiiitilator to has Le,-ii fli-st 4@ cleared". The ti,@insfor froin the upper accumiilator to the loiver aceiiiiitilator sets back to "c@l)lier iosit,on"@ tl-,e ivlieel@q of the iippei- or credit aceiiiiltilatoi-. The next opei@atioii is to depress the clc@I)it total 45 kev, which is the key for takin,, totils froiii the lower or (lebit accuiiiiilatoi-, said Icev iiot bein(, slioa,n I)iit. tpl)eii-ing it K66 iii the Ellis patent. The subtraci;oii l@ey K67 is also depressecl. Tlle iiiaeliiii? i.,@ then oper5o -tted. This oleratioii catises the contents cf the ("teb;t or lower acetinililator, into ivliieli lias becii plit the conil)]6iiient (9.999,8,50 00 to be subtracted from the tipp6i- oi, ci@edit icciiiiitilator. As previously expla;ned, tli2' '55 gears of the tipper or credit aceiiiiiulator liave beeii turned bacli to "(tit')Iier positioii" anct, therefore, the operation ivhich is nonv takiiio, ])lace is ttie subtr:iction of the compleineiit 9,999,8r)0.00) ivliieli is in the I-oivei- or debit 6o accuinulator froiii zero or nothina in the credit or iipper aceiiiiiiilator. Tlierefore, this action automaticilly creat2s aiiotlier overdraft iii the ei-edit or upper aceiiiiitilatoiand the follo-vvincy operation sho-",,.@ the pot C3 differenee wliieli is 150.00. It now becomes necessary to I)riilt the balance or contents of the tipper oi- el,edit aecuiiiulator to sliow the aiiaoiilit of the overdraft. Tlle deciiiial slide havin- been in the 1)i-evious opei-atioiis liaoved to tli? extreiiie 70 left, iiiust now I)e niovecl to the ri"lit wllieli gei,ves to iijilock the iiiaeli;ne, as lici-oiiibefoi-e descril-)ed, aiid also caiises the i'lbborl ii'lecliaiiisifi to be set iii a iiianiier in-lileii will catise the net aiiiount of the (tforesi,,I(l oi-ei,in a discli@aft wliieh is 150.00 to ap,l)eai . 75 tinctive color, say red, ivlien the stii-tiii(y bir M91 is operat@d. Th'e itein is also ideiitified by tlle iiiarl@ "Cr." on the original le(laer slieet and oji all carboii copies I)ei.ng inade as sliown in Exiii-il)le No. 2, Fig. 40' Tli,@, opei@,itioii reqtiii-ed to unlo(-I@ the ina(-Iii-ne, al.,io the operttions tliit ai@e ii(@@,essai,y to fiiid the iiiiount of ,in ovei@(li-aft iii t liiaelline tb,,it is pi@oi,-icted wi-tli a startiii(, bar lock, ire exaetly the sajiie as opei-atiojis i-equirecl to unlock,@i, macliiiie liiiiii(r onlv a b,,tlince or total li:ey loelc ari(I total del)osits oisiib-totil key loi@. Fui,tliei-mol-e, tlle opei-atibns necessai-y wlicii it is desired to liave the go iiiac)iine ai-it(@iii,,itic,@lllv sliow tlip, iiet ar@,iou,iit of the overdraft in a iia,,icliine that i@, proi7ided witli i, startino- bar locli, are I)roeiseINthe ,@aiiie as the operitions rcqtiii-e(I foi, that piirpose iii t iiiicliine I)i@oA-i(le(I ivi'Lli a bilarice oi, totil l@c,@@ locl@ ot- t(stal (1cl)osit!@ oi, siibtotil l@ey lock. In I)rief, wlietli-li- the iii,,icliiiie lias one or bot-li of the locj'<iii(y iiiei@liaiii@@11.11.1 described, the op,-rttioiis to the locl,-ect con(liti on of the mael-iine ari(I to I)i-int the coiii- loo pleiiient of the oi,ei-di-aft or the iiet aiilotint of the ovcrdrif t it-,elf , ai-e the sai-ne. I
