meridian. For aiding in deteriiiining the ,ir di placeinent of the prism base relaaiigul, s tively to the pin 50, scale 72 and the cooperating index member 73 tre provided. In att-,ching the lens bl,,iiak to the block by m. eaiis o-L' tli-, device of this application the bl@iiilc is positioiied relatively 'Lo the loiigitudinal axis of the pin 50. Iii the machi-ne o'L my copendiiig applicatioil me.@it,oiied above the longitudiiial axes of the pin wliiel, corresponds to 'Llie piii 50 lies in a horizontal I)lane co-Titaining one o'L the principal ii:ieridiaiis ol t lei-is imiiiediately after the grindi-ng operation a3-id before 'he 16, removal of tll(, lens and leds block froiii the machine. i@ecordingly, in fixing or ,tdjusting the positio,,is of the axis li-ne @tiid the prism base rel.,t'u-'Ivelv to't-he axis of the pin 50 their positioiis rel,,,ttively to the cyljiider axis 20 of the finished leits are ilso fi.@ecl. To 1)1,qce the axis line of- the le-iis bl,,tii!K iii the proper anglilar position relativel)T to the pin 50, th(, i-iiembei.@s 2'0 and 27 carryiiaothe lens sul)porting pins ai-id iiidex i:)Iate z!S 9@5, are rotatecl abotit tl-ie, ,iciil)ter throui);Ii the desired aiig'Le ,is iii(l.i.c,itecl by the grIdLiitecl scale 74 on -1@-he iiieinber 26 aD.d the index line 75. The screw 'd6 extencling throuali uhe Nvall of the member 31 ,tnd iD.tO contact 30, w ith 'uhe m(,-mber 27 may be in i-il,-.ted for index locl@iiig the inembers 26 gnd 2d plate. and leiis siipl)orting pins iii thp-ir proper a-ngiilai@ 3)osiuions. -VVhei-i the proper adjustinents of the vari35. ous parts of the device liqve beeii m, ide the lens is shifted to siieh a J-)osition thac the marl3:ed cejitcr coittes directly under the ,tperture in the s.igl-it tube 65 aiid the txis liD(, inscribecl ther@on coincides witj'-i the axis line'on the inclex plate 48. -kftei, the leiis blank has been. properly itioned the ari-n. 55 cai,ryinz 'he T)resstir pos e piiis 52 is loci@:e(I in ])Ositi.oi@ I)A, o-Le the screw 61 The lens blocl@:ino- bocly is tilen he,ited bv gas flime or other iiieans lintil the pit,(,h is softep-c@cl., after which the blocli:iiig bocl,y is moved iiito eii@-ra(,@eiiieii.t -with the I -L loi%,er s irl@ac(,@ of the leris '@ianl,- by dovv-iiward pressiire on the I.e 50' ver ,i-m 35. A iiei, ht 77 MO'Ll,nted oii tb(.1 lever '05 is siifficien'lv lieav u . y to i,)ress the blocl,-,iiii)@ body goiitly agtinst 1,1-ie blank. -A. loclc-,'@p-o, sere-iv 80 extendii-Lg tliroligh t s'lo@u ii-i @l bracli:et 81 carriecl bv 't,h@, 55@ b@@se 20 apcl eptering a th3-eicled oldenilig iii the lever @irm 95 m,,ty b-, to I(ek the lever 35 in pos;-',.-ioii. The lever 9.rm i@s prof or,,tbly not locl;cerl in -positioi-i ivliile @Tie pitch is c,-)oling, as @.-O c(,olin@): the p;ltcli c(,ric c (jo tracts tucl if thc,, lever rri@ wcrc-, 1(,, I cd ,q ,g,-t;nst moven,.el).-lu-, ol,'ectioii,,ii-@le l)et-v7eeil tl,,e leiis Inc, t@,e bi-oci;@iilg bocly -,@@,ould be crettecl. When the piteli has ecolecl aiid li,,irdeiiecl 65 the lens blaiih- is firmly he'id oii the blocking 18,569 3 body tnd the blocking body may be transf erred to the geiiei@,tting ini.cl-iine. Froin the foregoing it ivill be seen that there is hereiii proiided a device v@hich eniboclies the 'Lea'utires of this -'Lnvellt-Loii tn(I achioves the objects tliereoj'@ A lens blockiii,,@ dei,ice is ].:),- @ov;.decl whlc'i-i is of simple ancl dt7rable coii.struction aiid by iiieins of whicli r lens bli,.-ik may be qtiielk@ly al@-tached to a blockii-iy bocly iT-l such t iiiaiiner that it ma y be reqoily t,,aiisfei@r@-d to ti grincliiig or o'eniiol- iillcliine and grourd to pi- c a Icils hti-iiio, the I)i,lsm base, aild cylinder axisaectirately posit,@'oiied .;li the desired nieridi aiis. As ii-iaiiy possible eii-ibootiliiei-its iiity be m,,tde of this iiiveia@u'ioll, aiicl as many chaiiges iiii(-Iit be mide in the ei,- ibodimeiit above set To-i-th, it is to be Lilleerstood that all m@Ltter set f ort'il or shewn in the aecoiiipiiiyiiicr draivings is to be interpretecl as illus,@@ritivc" ai-icl not in t limiting seiise. I ei-q@il:il "is 1-1,ly ill-,Telltioii - 1. Iii a, leiis blocl@ing device, I stipport a Po pivot@illy iiiouiitecl table mei-itber - the,.@eoii, -'Leiis s-L,,ppoi,ciiig mett)s m,)Linted on qiicl iiioval)le rei,,itlie to s,-id table iileiiaber, @ind a, lehs bloelk aclipter for sLipporil-ii-io@ t lelis 'ol@oelz arratlp,,ed 'o suppoi-t a leias c@irried b LI y sai(I leiis sLi-I)portiiig iiiea-os. 2. !-,-I i leiis blocking clevice, ti ro'Lat@i'Dle stil@)port, :i table iiipiiiber pivotally mou-,ited oi-i said stippoi@t separate relatively iiioi,,,tb.1c@, lei)s su-i) oi@iiiio, inotiiite(I oil said @, p table iiielaiber, aj-id t Ic,-iis bloc!,: aOit,,ptf,,r ior 100 slippoi-tin@x a lens blocli: ai-ranged to siipl)ort @t I.ens carrieci by sail Ixeiis s-Lipport""no, clevic(as. 3. iii a leiis b.'Lockirtg cle-%,ice, a 'Lr@-iiie, a p-Li,otally iiiouii'Led table member moLtii4Led ori 105 said fral-ii(,, lens stipportiiig illellis slidibi(l@ oil said fr@,,iiie @,,Iicl en,(,Y,,iolinz said tab-',e meiiibei@, iiieins -'f-or 1,.oldiii@3@ a leiis iii posil-lion oi-i saict leiis siippoi,u;.i).c,,- iiieaiis, aiid I lens block adai)'tei- 1'6r s,,ippoi,tlnyt le b'ocl@ arranged ns i to supl)or4b 'u-1@ie leii@s c,,iirriec'[ 'Dy s@tic@ le,.is siii)- 110 Pol'tilig me',Ins. 4. Iii -@. leiis blocl@ii-,g clei,ice, a rot',It,,il,)ie suoport, a tiibl meiiiber til@lably iyioui-ited e L Oil s@iicl sup bi:t. riieaiis -.,'@.or ,.,,ectirino- t,-tble p 115 inemk)cr iii d@ff-erc-i-iL 'Liltf@,cl positiolis upoii the support, leiis sui-.porting Cte-,-ice-s li(,,uTited on said tab-'Le inemi-@er, resil-i-en-lu me,@ins f or holcliiic@ a -lens iii pos'ltio-il. oii stici leds slipporting cleiices, iiid ,t lei-is block qclal)ter for stipl)ort- 11- iiig I !Oils bloelc,,irrapgecl to siippor'u the lens -eprried by said leiis stipportiii(y iiieqns. 5. In a lo,,is blockiiig device, a leii,,, block adapter verti.cilly dis,-)osed, leis sul,)porting p I -iecl 0 mem',)ers osit'oi , oii pposite sicles of said 12@ @,dil,)ter, giiicl.e ine,,.,,,Ils for sl-icl members, a-ncl ii-ieaiis for sim-Liltaiieotisly riioviiay saicl lens tn siippoi,tiiig members ve,-ticilly ai-id i-,i oppos"t',e,Iii-ee't-Loiis to ,idjust the positioi of a lei-is thc-reon. 130
4 18,569 6. In a lens blockiiio- device, a lens block adapter, a leiis block ea--riecl thereljy a-id qri-aiiueci to s-cipport t 1(,.iis blank, t rotatable support, a table meinber pivotally mo-Liiited id suppor'Ll ai-id arranged to be tilted positions, a-,id LipstandiD- pin iieiiibers positionefl on oIDposite, sides of s,,ilcl adapter and ei-i-agirl @,)- saicl table qt different poin'ts o 10 e,'.evat,.oii, 'ul,.e -Lipper enc-ls of said pin iiiembei-S @oimino- a stippor'u for 'vllie leiis blank. kn -i,)- dev-ce, 7. l@,i ,t le.,-is blockii iii aclj-List,-Lbly r,ioti-,ited I.ens block ,LOLapter, a rotattl,)Ie support, a ttb"fe member pivot,,tlly moiinted oii 'd s I , sal -Lipport, Iciis suppoi-t'i-i(, I)iii meiribers pos;-tioiieci a@ijacerit said aclapter and eilgt-z@ i ii ('r s a; 0, 'Llable meinl)cr, aiid resilient i-tieans il oi@ hol@,i]@@i(,y sgi-d -iieii-L)ers -iii zn adapter be'iiy witt) s,,t;lc'L table meiiiber , uh, 1 , 20 mounte,,, in t pos'I'Lion to 'oe secured to a lens stipportecl oi@, said pins. S. li-i -L lens blockiii(y clevice, a.-i a,-Ijustabl3, mouiit,,,d lens block ,tdapter, a stippor'@-, rotat,ible abou'u t'lle vertical axis of- said t,,Lapter, 25 - table niem'oer pivotjlly iiaoupted oji s,.ilct support, vertically exteii-dinu pii-i iiiem I oei's Li(@agi c ng said table member iiid i-iiovable ,@boul- ti e vertical axis of s,,,@'d odapter ii,.clependeii'L-ly of saicl table -iieirber. 9. 'Ln ,t lens bloc!Tino- clev;-ce , 30 e@ , -in adjtistably iiiountecl lens block adapter, t su-,)port rotata,]-)le about the vertic,-LI axis of- saici idapter,,,', table mori-il,)er p-@vot,,illy mouiited on @,aid st,pport, a plura'Ll.ty of le,- i!@ stipportin(,y pi_n mein35 ',"ers mouiitp-d for rotati-on ,ibout the i7erti.(@al axis of saicl @t@tapter @,,rrai,ged to engage thO t@able, ,ind iiiealis for liolling a lens in POslU.on oji s,,tid i)iii members. 10. Iii -@L fens blocl@iii(, device, a I)ase., -,t 7 -f 1- z:' 40 plural't\ o' vert'cally disposed re!-ati)rcl3r ii-iovable "eiis supportiiig cle,,neiits a,@raiio-ed to eng,,i(ye a iens v.-t differeiit poiiits iiaeans movable ,ipoi-i llb-e base to eftect 'vertical ino),emoi-it of saicl elemen'bs one relal@ive to 4 5 ,ii-iothei., iihereby to sliift the lens to ,,i prp.- dete,riiil,,ied position, a-,icl me,,i--tis iiiovable i-el.itive 'Lo sa'l,,-.1 e'iemeiits arr,,tii(Yed to suppor' 11. Iii ,,i. Icns bi-ocl@@ii-t(y clevice, - base, a 50 pluralit), of vertically disi)osed re!-,iti-vely iiiovable, leiis sul)])crtiD(y el@iileiits Li,raDf-),ed l@o ciigage a leiis at C,1!Terp-,@it -,)oint-, o-itide - -7 @ - i-ne,p,i-is -.."or said elemeits, meaps movable iipoii the bqse to siinliltai-ieously effect verti55 cal i,,ioveiiif@iit of said elements whei,eby to s'lilf@ the loi,,s to i predetermined ,t,),,YLilar I)ositl'oii ivitli respec't, to the horizontal n ai-id ,t leiis block movable i-eitic,,illy to suppor'L t]-ie leiis iii ti-ic positio,,-i to which it is move(,,l -iei ,,o by saicl el,@n -its. 12. Iii .t leiis ),)Iocli:ing dev;.ce, i base, plurality of vertically aisposed rela@.ively, movable lens supporting eleiiiedts arran-ea to engage ,, lens at cliffereii'L points, guldo c-.,. means for said elei-nents, means movable upoii oii sa thereo@-i to Oiffoi-eiit n or liold tho lens iii s,,iicl positiod. the bas(, to simultaneously effect vertical itovement of said elements whereby to shift the lens to a predetern-iined angular positioli -with respect to the horizon'ual, and relatively n-iovable devices foienuaging oppo 'Ue sicles Si' of 'u-he lens to hold iL iii said positioii. 13. Iii a lgns blocking device a base, a plurality of vertically disposod relatively iiiovable lens suppor'Lliiig elements arraiigecl to engage the le-.,Is at different pol@n'us, means movable upon the base 'uo effect vertic-,l nioveinent of said elements one relatii7e to another whereby to shift the le,.is to a predetermliied position, means for rotating said elen-ients to effect rotation of the lers, means above 80 the lens for hold-LDg it in e--Ligagei-neiit wifli said elements, and means beneatli the lens for slip orting it in said precle'uermined position. p 14. In a lens blocking device, a base, a plurility of relatively movable devices forming 85 meads for slipporting a lelis in a substantialJIT horizontal positiop,, one or more of -which is adjustable to move the lens rela'uive to said posi 'tion, rotliry control means for sa-id adjuqtab'Le devices adipted duriiig rotation 'Lo 90 move the lat'ter @vhereby to shift the lens to s,,Lid posi-tion, aDd relatively movable holding parts adjustable to engage the - opposite sides of said lens when moved to said posi06 tion. 15. In a leps blocking device, a base, a. plurality of relatively movable clevices forming me,,ins for supportin@x a lens in substantially horizontal position, oiie or more of ivhich is adjustable to move the lens relative to saicl 100 position, rotary control means for said adjustable devices ad-,tptecl duriii- rotation to move the latter -whereby to skift the lens to said position, relatively movable holding 1 parts adjustable to engage the opposite sides of said lens when moi,e(I to sa;d position, and a si(yht tube carried by o-@ie of said parts for vienving a mark on the lens -where-by to determine -@vhen the lens is in a predetermined position of adjustment on saicl devices. 110 16. In a lens blocking device, a base, relatively movable clevices on the base for supporting a lens in substantially horizontal, position, operating meg.Ds for moving one or more of said devices whereby to shift and iticline the leds -with respect to the - horizontal, a support carriecl by the base, and a sight tube on the support for viewidg a marlc on the lens -whereby to det-Irmine -when the lens is in a ' edeterm'ned posit-ioi-i of - acllust- 120 pr - I ment on said relatively moiable devices. 17. In a lens blockiiig device, a base, lens supporting meaiis ctrriecl by tl-ie base for t precletermined I)osition 125 holding a lens in , and inelliding parts certain of which are movable to shift the lens relative to said position, means for effecting movement of said parts and a lens block movable between said parts into L)osit-"on to support said lens. 130
18. In a leiis blocking device, a base, a lens supporting block adjustable thereon, relatively n-ioi,able deiices engagiilg the lens at diffeient points and adj@ist,,tble to shift it to a predet(,,i,mii-ied posilion for subseqtieni' stippoi-t I-,y tli-, lens b'LOI-k., means f or e:ffectin.,,o; of @;aici cl(,vices lo sh@,Tt said lens to s,,ticl I)o,,i-tioii, and means for moving tl-ie lens block to s-cI)I)ort the lens in siicl positioli. 19. ill a lens blockii-ig clevice, a b,,tse, a lens slipportinc-j, blocl@: ,,djustable Lipon the base,- relitivc-',-,@ movable devices eng,,Lgi.ng the, lens at cliff erent -poin'Ls on the siclie @ie,@,est thLblock, meayis for si!i-iii-I.t,,tiieoiislv rotat,inc, 15 and moving said devices oDe relt'tive @uo an'otliei, to move 11-1-le lens to ,i 1)rede@uerinii-iecl posi'u-ion, ancl iiieaiis -or movin- tl-ie lens t, ])lock to siipl)07.@t the I.ens @in s,@ticl positioii. 20. -rLn ,t leiis blockin(,y clevice, a base, a 2(l leiis stipl)oi@@'U-I-n,()7 block adji.Tstable iii,)on the CeS eilo-,q@gjll .g dovi th(, lens at-, d'lff@i-ent points oii -L'I-ie side nearesi the bloc] fo S: irAe,-,ns r miiltaiieo-Lisl)r rotatiiio, ,iiicl moving saic', d,-@,vices oiie relative to an25 otliej@ to m(.)ve the lens to ,i, predeterm-Lned i-ositioD., iii(a,,iTis for ip-ovin(,@ the lens blocl@ to stipl)ort the lel'is in -,.-@id I)o-,Ition, a holdirl.(' (levice stii)porteci by ancl mounted for moveme3it rel,,,ti.ve tO 'Lhe base aiid inelliding Iiieans to eii!2@ao-e and hold the lens iipon sa@cl rel.ati-,,ely iilovible devices, iiid a si-@@ht tube c,,tvried I)y s,,tid holding device for vie,win,7 i, i-iiarl@ on the lens to determine Nvllel-l ille I-e-.ns is ,tdjustable to a predeteriiiiiieci 'Dosition. 21. In a lens blookin(y dei7ice, a base, a rotai@y stipl)oi@t c,,irriecl by the btse, a device tilt,-i@@le UlDo@,-i th-@ slipl-)ort to different angiil@,ir position.f@,,, iiie,,ins for holdiiio@ said device in sai(I different i)ositions a ptli@al.it) of lens sl-ipj)oi@ting elem@rlts 1-if,,ving tl-,eir lo-@N-er ends rc,stino- oii sai(.l clevice, the Lipl:)er ends of said elf@m("nts bein-,id,.tptecl to receive a lens, g-Lilde iiieans for saicl elements rotatably 45 mounted to move the sai-pe -whereby to shift the lens to a 7,)redetermined posi'uioii, ,tnd meaiis mov,,ible relative to s,,iicl elements ,trraiigecl to cooperate thereivith in holdi.ng tlie leiis in said T)ositi-on. 50 9-2. In a I.-Iiis bloel,,ing (levice, a base, a member tiltqblv mounted within the base, MCI,'_,ins foi- 1-ioldiiig sa-id i-neinber in differept S Le,_l . - ,I,-Ij-Ll L positions, a T)ILiralit,y of lens si-ippor-tit-lg elei-iie-nts res,@in,u on and proiecting 55 ul)Vl"LrAly from sa,@d tilltpbl.e iflember ,tnd arran(yed 'Lio receive t lens on tl-ieir ii per encls, giii,le means thro,,io;h wl-iich sftid el.einents are proiecte(.',,. s,,iici gi-iicle i.ie,,ins being roti-table to eriect rotiti.on of said elements whereby they -tr-e rwriovted verticalli7 one relative to anoth(-.,r to -,Iii.ft the lens to a predetermined I)osi.tion', sa,'@'d o-,u,.cle me@lns and said b,,tse ii,,Lving cooper,,tt-i.no, se,,tle and index markirigs for inclicatinc,@ ti-ie extent of rotation of the uicle means and said base and tiltable rnem10,069 5 ber ,tlso having cooperatino- seile ancl index iiiprl,-,ings for indic,%ting the aiigular i-elationshiid of the tiltable meinber relative to the 1-ior-izontal, means for exerting pressure o.,i the lei-is to hold it iii Idjusted @osition -70 ill-)on said S-Lippol.,ting elemepts, and a lens beneil-l-i the leiis iii@l-o s-Lil3I)ovtiii-g i-el,-ttionship with respect thei-e@u-0. 12@. leiis blocli:ing device comprisliig Li a', ei,,s bloc'- holder s',Ildiblv iiiouii@ed 7,p -,@i sai@:L si-tpport, @i iiien-iber rot,,Itibly mouiltc-I to turn abot'it the ,txis of s,,tid lens block a t,,ble pivotally inounted on said meiTib(-,i- and I..ens sili),r)oi--6iiio- me@ip-s carried 'oy saict tabl(-. 24. A lep-s bloc],-ina st,,Liid havilip@ iii combiiiqtic)i-i a base, iiiq,,iiis f or stipportiiig oL lens, ,@aid Pae,,tlls beir@g moval@)ly niounted oii said b@if-,e to about diffe,@:ent,,txes, a holcier f or -. leiis block and meaiis 'or prodliciiig a rel,,t- 85 'ive i-tiovemeiit bet-weeti said h,older ,tnd saicl fi,-@st ii,,imecl iiieaus to brii-ig the lens ind u o t a c t w - ' t l i e a c h o t h e r . 1)1(,, ek in-l-o c n n 25 A le s bloelkiiig device co iiiprising a support, leias liolding ineai).s movabi.)T n'lotin@L,- 90 I oii saic', sup r aiigt;larly ad7 e( port, me,,tiis fo justin@-Y siid leiis holdiiif_,- meii-is @bolit -Lxes ivliicl). I,ie in -oerpencliciilar plailes a lens 'ol.ock bolder,,i,.@cl mean,,3 for moviiiu said holcler tow,@lrd a le3is cirried b eii 0 y said l@' s h Idino- 05 means. 26. A leiis blockinfl@ device halTilIg il-I COMbase, a leiis block slidably mounted on sai(.1 base, lelis slipporting i-iieaiis inovablv inotlnted on said base, s,,iid ineans beingi@- iountedfor,,tngtil:D@ridjtistiiaentsabout axes, scale meaiis for indie,,itii-i(y saicl ad4ustiii,--nts, one of s i al(i axes beiiig coineiivilth the a@,-@.s of said lens blocli: holder. ')7. A 1(,.ns bloek;lng device comprisiiig a 105 1),gse, a lens ho'lder mo-,,abi), m6iii-ited on said bise, iaieaiis foi- angulai@Iv adjiistido- s,,t-id holder abotit vertioal -tnd i@orizontal axes, L ver'.icillv dic.,,T)os,-c! leiis bloelc holder m iiiit0 eci oii S,,iid b,,tse qnd meais for moving one of ,aiCt hoiclers tonv,,trcl the other to brilig t lens blocl@ a@-id t lens on sal'.d sul)port into coilttet NNith eacli otlier. 9,8. ,@ lens blocicliag dei,ice comprisino- a support, a meiiiber iiiovqbly n-iountecl on said 115 stil,)I)ort to tiirn about .1, vertictl axis, a table iiioup-tecl oii sctid meiiabei- to move abotit a horizontal axis, leiis supl)o ti g ea r P ill Es carried I)y said table ,tnd. means for moi7ing a icns block iiito contpct with a lens on said 120 stipporti-Tig mepns. 29. A letis 1)1.ocli:ing device comprising a support, P. meinber mo'vibly iiiou-nted on said support to turn @ibo-kit aii ,txis, a table pii,otally iiiounted oi-i s,-Lid meiiiber to tilt about @1,25 @@.,@-iother ixis -which is S-Libstantitllyperpendi-cii.lar to said fir,-,'. named axis, meins carrieo by s,,LiO, 'Uable for siipportino: a lens It le3i.s blocl@@ qiid meap-s for I-,IOITinu S d blocli@ into contact with the lens. 310
6 18,569 30. A lens blocking clevice haviny in combination a base, a lens support movably mounted on saicl base for angular adjustmeiits abo Lit different axes, a lens blocli: holder and means for producing between said lens stipport and block holder a relative angular adjustmer-t about the axis of the block holder. 31. A lei-is blockiiig device having in combi10 nation a base, a lens support movably iiiounted oii s,,tid base, vertically adjustable lens engaging means for clamping a lens against said support, ,t lens block holder movably motinted on said base, means for movin-u said 15 liolder to brin(y a lens block into contact with a lens on said stipport, and ceiiterii-ig means ii-iounted aclj aceiit to said lens engagiti o, means zn f or cen'Lori-ng a lens oii said support. - 32. A leiis blocking clevice havipg in com20 bli,,atio@i a base, ,t lens support i-novably molinted -n said base for angular adjlisti-nent aboiit di:fferent axes, a bracket carried by said base, lens engaeiiag means adjustably mounted on said braelk@et for releasably clainping a le-,)s oii said sl-ippoi-t and me,,ins carried by saicl bracket for centeripg a, lens on said support. JOSEPH J. McCABE. 30 35 4c 45 50 55 60 65
