is tlaerefore ver37 suitable for portable talkii-i- machiiies. To enable the tall@inu maclaiiie to be partially collapsed to occupy a smaller bulk inhen inopei@ative, I preferably pivot the encl 11 of the ini-ier section -within the outer section 12 by means of the pivot pin 15, so th,,tt the sotiiid-box 16, tojie-,irm 8 and in'zier seetioii or soulid conveyor 10 caii be lowered from tl-ie positioii shoivn in Fio, I ii-ito the .LO closed pos'tion shoivn iii Fiu. 3. Stich collapsibility may be ob+ainect I'n IL-lie n-ianner disclosed in my '@rior United St,,ites P.iteiit No. 1,584,184, or by other stiitable 15 means. Wlien in use for playine, a record the tonearm S is raised, as shonvn in Fig. 1, and Nvhen the instruiiient is olit of use the tone-ari-n 8 and its adjacent parts are lo-wered, as sho-wn 20 iii Ficy 3 2 1,862,700 izito the cli,-,iiiber 2C) sitii,,tte(I aboi,e tlie inotorbo,,ird 6. it ii,ill b,- s,,,eii tl2at 'L-lic@ iihol,- of the inlet sectioii 25 is not s]tliate(i - \vitliiii the outlet section 12. biit tli,,Lt tlle inlet scet@on iiity I)c 70 foriiie-d -,vi@,h orL(, or i-itore ]-)ei, cls 2 1- so as to extedd belo-w tl),@ ou,,tlet s@-,ctioii 1)efoi-e enteriii,u saiiie at 'Clie I)oint 28. By this ineans, a iiitich (yreater leii(,th of a)aiplifying chamber cat-i be obttizied withotit occupyin(r the space tli@it -",ould I)e necessai,y if the liorii -riei-e of the tistial oiie-piece constructioii. It is now coiiimon pi.-actice to coiiabine in electr'c loud speakii-i,- clevice iiitli t-Llkiii 80 ii-iacliijjes, in case stieli a (levice coiild con-@7eiiientl)r be atticlied to th,@@ an-iplifyill(, eliamler tt'99 (Fic,. or iii any othei- suit"- able posi.tioi-i. n l@. iiiust be uiider@-,tood that tli,@@ fore(toing 85 l @ T]Te'ho'rii or sound conveyor 10 may be ,ttdescriptiors Pre (,iven by iiay o'L ilitistr,,itached to a suitable linlc 17, ad,,tpted to eii- tion ,,net iio' of I since it will be obga2e the si)rii-ir-pressed catch IS to hold the vioii@,, tl)at the liori-i or sections fi-om ivhicli horn in its raised position rel,,ttive to the the saiii(-, -s fori-ii(,,d i-iia.)T be iiiade in various 25 case 5. The horn 10 is connected to the link sliapes ancl froiii clif-f@rilig i-nal-eriilq, all(@[ 90 18 by iiieaiis of t stiit,,tble connection as the f Lir'-hei-. that th(, details ii-iay el.early'jje iiiodipin 30. fied ,tiicl vai,io,,is itiecliaiiieal eqiiiv,,tlents siibThe otl-Ler encl of the linl,, 17 is attached stitutecl. for ttie details @,@hoi@,ii del)(,jidiiiLr to and is iiio),ed by the lid 19 of the case in iip(l) t,]).,@ t),])(,, 01- col'istj-iietloi ol' -0 such .t inaiiiier that the lilik 17 holds the to whicli tli@, iiii7entioi-i is, i-o 1)(,, @tl)!)Iied oi.@ tii), 95 lid 19 iii its opeti position wheii required, I)i-,icticil i@eqtilreiiient,; fliat, iiiay liiie to and the lid acts as a supplemeritary reflector f i@ilfil,le(l. foi@ the soiiiid issiiinc, fi-oii-i the otitlet 13. I-laviiig now pai,tictilai-ly , t i i d @ i s I n . t i i i o d i f i e , . t t i o n i n a c c o r d a n c e i i l t l ) t h e c e r t a i i i c d t h e i i , , t ' L i i i - e o f n i y s a i d i i i i , e i i t i o l i . 1 i ) ( I 35 invention shoiv-,n iii 4 aiid 5, the oLit(-,r in what iiiaiiiier the saiiie is to li(@ 1 10 or reflectiiig horn section 20 is arraiiged -,o declare that -Nihat I as to extend beiieatli @uhe pirtitioii oiYiiotor- 1. In ,t tallc'ii- inaciii@)(,, a c- biyi(,t iii(,Iiid-bo,,Ii-(! aiid a base. board 6, and so as to eiiclose tl-ie outlet end ing i iiiotor ' ",Ii(I iiiotol-- 21 of the innei- @,,eeL;on 22, the aiiiplifyi-lig boar(I aiid base beiii,, sj)ace(t to foi-iii 40 lengtli beiiig soiiieivli,,tt i-edticed as comparect a conipartlii(,i-it and sti(I iiiotor-boii-d li-- 70 with that given by the constriietioii showii 1-ii raiiged to provicle aii exit fi-oiii said coiripai-tFio,s I to 3. meiit,,,i hoiai exteiidiii(r iiito the spice betweeii n n In the consti-ueti(>n sholl7ii ii-i Figs. 4 and 5, the i-fiotor-I)oard aiid base. a i-ef-lectoi-. sai(t the iiiiier liorii 9-i9, is ]lot liecess,,irily pivoted horn haviii(y aii otitl(-,t @lelivei@in(y SoLill(I 4.5 witli'n tli(, outer horii 20, as the sound-box ag,,tinst the reflector, an aiiiplif),iiicll,,imber 16 ti)iie-ai-ii-i S cii-i be lowered iiito the betweeii sii(i motor-boql-(! aii(I btse and of t lior-,i o,,itlet 1),3, as shoiaii in Fi-. 5. height substai-itially equcil to the (listan(@(, bet, Wlieii the 11(i 19 -is rals(-,d, is sl-,onvn in Fig. tween the iiiotor-boai-(l ,ind ba@:e ,Iiid clo.,;,@('i it -id 'I p!cTo,@,@ 24- ser@,o, to extei LI -@e one end by said reflee'Lor, said ainplify'llcr chamber carryiiig the soit-@i@t' in clirectio 50 outlet of the liorn 20 riglit up to the ilisidc 11 of the lid ai-i(I there'@,)y 'Iiierease tlie effective OPPOsite to its direction of travel in saicl liorii, lc@,i-i,rtli of thc@, liorn. and discharcyiii(,y it tipwardlv throu.-h the t, exit openino, Fi(y. 6 sliows aii eiilarged coiisti-uctlon of 1. liorii zn -in acordai-ice ivith the inveiition, suit- 2. In a talkinfr maeliiiie, a cabinet inclu(lino- a inotor-board anc.1 basc@, s,,ii(I i-notor-bo,,ird 12, able for tise iii the lai@(,,ei- type of talki zn n ng iiia- ancl base beiii(,,- spaced ap,,trt, a SOUnd iDlCt eliine ill NN'hicli portability is of secoiidary @llelet,wil pa,-,,silo- -,aict Tiiotorbo@ii-(l iiiiport,,tnee. aiid into the spnace betiiceii tlio motor-boar(I The otiter ri-,flect;ii(@ liorii sectioii 12 ex- , n iiid base, an -,tiiaplifyin(- cliambei- b(@txveeii 12@ 60 tends beneith the motor-board iii a maiiiier said motor-board ,ind ba'se ,tiid of q lieiglit --imilar to tli,-t showji 'zi the previoi-is e-xanisubstantially eqti,,il to the (list,,tnce beti'veell ples, and the outlet end I'l of the iiilet see- the motor-board an(I base, ,i, soiincl reflector t'oii 25 is situ,,tted thereiii iii such a m,,tiiner within s,,ticl amplifyiii(-, cliamber aiid stibst,,tntb,.it the end 11 co-operates with the reflector tially of the height of , tl-Le ,tiaiplifyincr chaiiiC,5 14 to project the souild out of the outlet 13 berl said inlet sectioii sai(I aInDplify- 13(
ing chaiiaber and diseliarging solincl fio-ainst said reflector, saicl; 4,nlet section having ,t discharge opeiiing stibstantially of the height ol' the sound reflectoi@, sa-ld an-iplifyin 'g cliaiiibeiincluding an outlet section, said reflectoi- reversing the direction of the sound waves aiid clirecting theni abotit the inlet sectioii a-id throligh the ampli@ying chamber i.nto the otitlet section. 3. In a talking n-iachine, a cabii-iet inelti-,Iing a ii-iotor-board ai)d ,i base, said motorboard and base being spaceci apart, i turn table disposecl on said motor-boarcl, iii inlei-I boi,-n sectioii disposed and directin - sotiiid beiieath the motor-board, a toiie arm pivotal.'Ly connected to o.-ie end of said inlet sectlon, an otitict section of a height equai to the dista-nce betweeii the base ancl inotor-board and discharo,ing the sound from the sptce betweeii zn 20 the i-notor-board and base tiid about the inie't, section, said inlet section pivoted at its other end withii-i said space whereby the s,.ild iiilet sectioii, tone ariii., ,tjid soulnd box may be loivered w'l'Lhin the outlet seet'oii wben the iiia25 chine is closed. 4. A talking jiiacliiiie col-nprising t cibinet inclucling,,t motorboqrd and a base, said inotor-board and base bein,,3, spaced apart, in aiiiplifyi-ng cbtmber withiii the space betvveen th..- motor-board aiid base and of a heicrht slibstaiitially eqlial to the dista--tice between the ii-iotor-board and base, a souiid inlet section extencling beiieath said -n-iotor-board qnd @.nto ,,aicl, chamber, a toiie arin disposed on said iii-let see'Lion, saicl amplifying clianiber ancl sound iplet secti-on extending beneath the inotor-boarcl iii - clirec'uion laterally of the axis of said torle triii, nd said sound ainplifyipg chamber liavipg its outlet situated at the len,,el 40 o'L the said i-notor-board. 5. A tilking iiiachine including a cabinet, 'd c sal -,lbinet includi-ii o,, a inotor-board liaviiig a si,,)ace therebe,,ie,,tth, an inlet section, a souii@l reflector a _2@,iiist whi-cli @uhe i-nlet sectioii s, 'lic 45 charges, I solind reflector of a heigh@(l. stibstantially equal to tiie dis'L,,t-ice betiieen the iiiotor-bo,ird and base, an outlet sectiol-i., said souiid reflector clli-ectin(y the sound towlrd the outlet section, incl said outlet sectio.-i dis50 posed approxima@@iely in t@e plane of the motoi,-board. 6. I,-ti a tall,-ing machiiie, a cabinet includiiig a base, a partition -",ithiii the cabiiiet acljacent 'ulie upper edo-e tliereof and spaced from 55 the base whereby a compartment is ldrovicled betieatl-i the partitioii, sfid compartmcnt having an exit frol-n its top, t. horn extending 'he coli-ipartment, aii ai--qplifying chamber within the comparti-nent and closed at one en cl , siicl implifyip g ch,,Lmber of t height substai-itially equ,,tl to the distance betweeii the partition and base, said hori-i arraiigecl, to cliscl-targe sound -,gainst said closed end an-d said ainplifyinc, clianiber carrying the souncl in a C,5 d;lrectioii stibstaiitially opposite to its direetion of travel in the horn ancl clischarging it through said exit. 7. In a, talliinz macliiiie, a cabinet including ,t base, t pa@'titioi-i -@vithiii the cabiiiet a(ljacent the upper edo@e thereof and spaced froiii the base whei@eby a coi-iipartiiieiib is providecl beneath the partition, said col-iipai-tment ha-ving an:exitfroiii its top,,a soiind conveyor eiitering the compartii-ient iiid - exteiidaioiig subs'L-Ltntj,),Ily par,,,]-',el. iiitl-i ti-ie pai@- @S titioia, an@ amplifyiiig ebaiiiber withili the compartment closed tt one end, saicl aii-iplifying chainber of a lieio@lit substantially eqtial to the clisttiiee bet-weeii the p,,trtitioii and b,,tse, said soliiid coiiveyor ,trranged to dischirge 'gb sound against the closed end of the all-ipllfying chamber, aiid s,,tid ainplifyilig chtii-iber carryino- the sotind in a direction s ubsta-Titially opposite to its direction of travel iii the sound conveyor aiid discharoing it througli 85 said exit. S. Ili @, tilking machine, a cabinet inclucliiig .t base, a@mol- 'or-board Niitbin the cab'lne'u a,.id spaced XIIO -L n-i the base to provide t coillpartia-ient between the bftse aiid motor-boai-d, @'-Oo said coiiipqrtn4eiit h,,tvin- an exit frorn its top, a souncl conveyor entendi-ng into @he conipartmeiat ajid having a discharge end reriote from siid exit opeiiing, meqns -,,vi'uliin saict compartmeiit aiad of a - 95 heio;lit stibstantially equal to the lieio-ht of thecompartinent foiturnino- the soiincl delivered fi-oin said souri-d coiiveyor aii(i Cili@ecting i' iii ,t stibstantially reverse clirection t' and delivering it to stid exit opening. 9. In t tqlkliia, iiiachine, a cabinet iiieltiding a base, a motorboard -@i-ithin the cibinet and sl),,iced froin the b,,ise to provide a compartii-ierit I)etweeii the base @ind the niotorboard, said compartmeiit 1-iavino- aii exit --Io$ en froiii its top, ,i sotiiid anipli er witliiii the coinpar'Lment, said sotitid amplifier of a lieight siibsluantially equal to the hei-lit of @l-ie coriipartment, said sound amplifier inelliding inlet section terinidatino- at I @-@1,10 point reii-iote from said exit, t reflex section into whi-ch said iiilet section delivers sound, and said reflex section arranoed to deliver the sound to the exit of tl-te coinpartment. 10. Tfi ,i talking machiiie, a cabinet in-@.115 eltidii-ig ,L base, a motor-board ivith4.n the cabinet and spaced froin the base to provide a conipii,tment between the base aiid motorboard, said comptr'meiit havino- Iii exit from its top, an an-ipl.ifier ivithin the com-@-120 p,,Lrtme,@it. said amplifier comprising an "nlet sectioii aild a reflex sectioii receiviiig sotind fi-om seid iialet section ancl delivering it to said exit, aiid said reflex section of- the IlI-iplifier beiiig of a heigl-it substant;lally eqiiil -125 to the height of the compartment. 11. In a tilkiiig iiiachine@ a cabi-iiet iiieluclin(y a basl-, a partition wi-thiii the cabinet acljacent the upper edge tliereof ancl sp.'Ieed fi-om the lase to: provide a@ coiiil)artii-ient be.@'
4 1,862,700 n,-atli the p,,trtition, siid coi-np-,irtment having ali exit f,, oiii its top, ,t soiin(f conveyor extendiiig inco the compartiiient, ,tii ,tmplifying cha.,iiber within the compartment and closed V at oiie, c-iid, s,,iid amplif3Ting chainber being a heic,rii@ substiiitially equal to the heiglit of the coliipartiiient, said sound conveyor -irraiiged to di-schar(,e souiid against said closed ecid, said solind conveyor increasing in liO cross sectiolial area as it approaches its discliai-ge ciid, said amplifving chamber carryiii,r the sotind iii ,t di@ection substantially oppositi@ to its direction of travel in the soliiid cojii7eyor ajid dischar(ring it through 15' @@aid ex"t, a,-id said souiid amplifving chamber iiiereasiiia iii cross sectional @'rea, as it approachc,,c-@ the exit. 12. The combiiiatioii as in dlaim 11 said soui-id coliveyor and amplifying chamber 20' being free of the pai-@itioil. 13. In a tall@incr iiiach;ne, a cabinet,ineltidill(, a base, a, partition ivithin the cabinet adjacejit the tippei@ edge thereof and spaced froiii t,lie base whereby t compartinent is 'O providecl beiieath the ptrt'tion, said compartment hliviiig aii exit from its top, a sound co,iveyor entering the eoliipartment ,tnd extelididcr aloiic, substaiitially parallel with the an"ainplifyiii(- chamber within the 80 coliipartii-ieilt close(I ilu- oiie ei)d, said amplifyiii(y cliamber beiii(y a lieight substantially eqiial to the hei(,,Iit of the coiiipartment, said sotind CollIT(@yor arraii(,,ed to discharge sound a,-aiiist the closed end of the amplifyiii(,T said @iiiiplifyiiig clian-iber carryina the souid iii a, direction substantia:lly opposite to it,; directioii of trovel in the sound coiiveyor aii(i (lischar(,ing it throiigh said exit, sa;d soiiiid coi-iveyor expaiiding laterally 4D' as it - tpproa(@lies the (,xit ,tnd bein- the widtl-i of the c@--@it it the exit. 14. The coiiibiiiation as in claim 13, said exit beiiig subst,,tiitially the width of oile wall of the c,,tbiiiet, and s,,tid ,tiiiplifyilig chamber 45 ilit its dl,,@charo-e'ei-i(I 1)(-in(y the widtl-i of said exit. 1,5. The coii-ibiii-,ttioii ,is in claim 8, said soutid coiive@,oi- eiitei@iiic, the compartnient tliro,,i-ii the exit opcniii(,,. 00 1-6. Tli.e (@ombii-iatioi-i as in claim 8, said souiid coiiveyor eliterii-io- the compartment tlirou(yh the exit and being pivotally molinted wi ii the compartment ,tdjacent its dis55 17. Iii -,t t,,Lll,:iiig machine, a, cabiiiet ii-iel-Liding ,i base, a iiio4or-board within the cabine@- ancl space from the base whereby a coziipai-tinent is I)rovided beiieatli the motorbo,,ird,,--,aid coiiipartiiient hav'iig an exit from 60 its top, a horn c,,x'Llendiiig into the compartiiie,iit, iiieais inithiii the compartment foriniii," an @-iml)lifying chaiiiber substantiglly of thc, liei--ht of tl-ie compartiiient and having 9, closed eiid, sa'd lioi@n arrano-ed to diseliarcre of m souiid a(yainst said closed ennd and said amplifying el-iambe@ carrying the sound in i direction substantially opposite to its direction of travel in the horn and discharging it throuoli said exit. Sig-ned at Londoii, England, this 23d day 70 of September, 1927. FRANK ALLEN MITCHELL. 75 so ---
