US1161541A - Type-writing machine. - Google Patents

Description

Cii

entirety. The mechanism that ean thus be assembled outside and put into the niaehine :is a whole. also ineludes other deviees in addition to thosev above mentioned. AS here shown. eaeh rod l2 has eaeh o't' its ends bearing' against the innei` face of a bracket 2() and seeured in plaee bv a serew 23. as shown in Fig. 3. The eonstruetion is Snell that in'assen'iblinger the machine the key levers 11 and sleeves 19 are strung;` along" the rod 1;). whieh is then inserted between the two braekets 20 and seeured in plaee by the serews 23.

The keys l() are arranged in three rows.

as is usual in typewriters in whieh there arel three types on eaeh type bar, and of these the rear row is the highest and the front row lowest. as is also usual. All of those keiv levers 1l whose kevs are in the rar row are pivoted ion tlie rearniost one of the three bars 12: those key levers whose keys are in the niiddle row are pivoted on tlieniiddle one of said bars. and those whose kevs are in the liront row :im` pivoted on the Jforward one ot said rods. this arrangement being of eoiuse for the sake ol` nniloi'niitiy of levelajn'e. said rods being so disposed that all of ilie ki-.vs lll have substantially the saine leverage on their respeetive lin'Il-:s lil.

ln addition lo plat-iii;` the rods l! one in liront ol' another. l have also plaied, tliein :il ilill'erent elevations eori e:-poiiding lo the dille-reni elevations o''vthe several rows of li'evs lll. i have plaeed these rods thus in order that all ol the keys l() ni:| v have. not onli' the saine extent ot inotion but also the, saule diria-lion of inotioii. i l prel'er in this respei'l the arrangement shown in Fig', 1 where ezii'i oll the rods ll has its renier a liille below ilie upper siirl'aees ol: the eorresponding keys. when said keys are in i-ior nial position. and a little above the upper surlziee o'll ani' one ol` said keys when said l\;e v is in ils depressed position. `\\'ilh the i-als l2 disposed in tliisniainier. :zieh of the li'eyvs l0 hasv a substaniialliy vertieal i'iiotion. rtypewriter lv'ev levers have iisualljvv heretofore been pivoted :ill on the saine level. the pivots being usually in :i lower plane than the ke vs. 'l`he result ot this eonstruetion has been that the keys have had 'a niotion, noi vertieal. bnl in a palh downiiard and somewhat inelined toward the front ot' the niaeliine. :ind the keys-iii the rear row have iiioved in paths inore sharply inelined towai'd the liront than those of the lorward row.. B v llie arrangement shown'. all ot the keys move. as was said above. in substantially `vertieal paths. rlliis feature of a."- rane'inie' the l'uleruni rods 1:2 in the dill'erent elevationsl :is deseribed. is not essential to 'they sum-ess o't' the other l'eatures of nii' invention. liul l eonsider it to be of advantage.

As the s ,'st:n oinv type bars is narrower than the system ot keys, the key levers ll said levers and io a series of hooks siii alli' torined on the lower edge. ol a thm plate 2li, whieli plate is riveted to :i iliiekei.

plate 2T which is seeured by sere 28 to the bark plate ot' the base l of the traine. As shown in Fig'. if, the serews Q8 pass through slots 29 so as to niake the Compound plate '26, 2? adjustable up and down to reguh'ite the tension the springs.

The links 18 are preferably se torined :is to be readilyr diseonneetible. '4l-he lower parts of the type aetion. ineludi the. key levers. are assembled separateli' 'troni the upper part and it 'taeilitatesthe inaniit'aeture ot the inaeliine to have these links readil)Y diseonneetible.

The type action is so designed as to ailord what is eoininonliv ealled in llie :ii-t an aef'elerated motion" to the type liar. that is to say. the leverage of the type liar oirthe kei' is substantially greater al' tlnA end ol the ke): stroke than it is at the benaming ot the-- kei' stroke. This is due in the prenait in niainl): lo two thin inve n lie lirst plaee. the rearivardli' extending: arnisv :it the salt-levers: il. normally stainl little above the horizontal, :issliown iii si: that eve-:i ai. the beginning' of i kei4 J 'the niotion :ill llie zipper end el 'the link E 'is :u :in iiielinaien ioii'ard {iie 'trout it inni-lune. ai i. the

measured troni the l lever arni said liiii. wire Si) perilieiidieularij; to said link,v d'ziiiiir islies eonstantl'v duran' tl stroke un l at the end ol said stroke. as ,siiiiivn iii lfiis. 5 and i3. said lever afin is n .zerialli' shorter than al the he "i the stroke: but even :ii the end said leve :irin is siill oll a sub1-taut .iug'tin 'lle seeoiiil -ause nl tlu 'alled :ieeelerathiii is tound in the .lisposiiion el! llie other :irai al said lever ll. wlii' Y. arni nernizdlir iii-tends doii'n- 'ward and te. :4 nt o eiine. as iudiealed in l" l. and :it the end nl :i keiv stroke this .irni exn s not very tar lroiii vei'tiealli. Ie resa.: that the lever arin ot' the lever il on tlm lin est when llie paris are in no (though it is el' l;

llienly and is :ilioni :il its nialin'ii-uii when the, type har is at prinin v posiiion, Vi'liere are thusy iwf: souri-es nl aei'eleiaiiou and they are so related hat the ,fnzil eliangz'e in lever-- age lag-tween the kei' and the tipe liar.

e id. is rliiil'iequal to the prodiaft oi the eliange to the eli'anrfinltf leverage ol the i il en the luik lil inulti ilied bi t'rt iti lever e iethi even,

iii-3 @Gopal times as groat at tho ontl ot tho koy Stroke as it i whon tho partal are in normal position.

rl`ho uib-'lorora ll inay ho niountoil ainl arraugoil l For oxaniplo. tho sant suh-loyors lan ho arrangfoil in tho aro ot' a oirolo to oorrospontl with tho aro ot tho typo hars. hut ninlor thoao ooinlitions tho links 123 would ho ot' litl'oront longths. ln tho prosont instant-o. howoyor. l havo Shown tho sub-lovors arrangoil in a atraight row ainl all piyoto l on a Iatl'aight pivot wiro Ill) soatoil in a groove; Ill iu tho roar faoo ot' a Cross bar 232. said. rross bar boinj .r fornioll at its roar Ililo also. with a sorios of yorlit'ul slots in which tho fnlnloyors aro guhlial. Tho links l5 aro oonnootial with tho typo bars ahoyo tho pivots ol' tho lattor. :intl saiil linksr oxtoinl troni thol l\ii\i-lt\\'ti-,\` lvl at variousy inolinatioiwto tho. horizontal. as will bo uiulorstooil liroin Figs. l auml il, thoso links that oonnoot with tho, niilltllo typo hars haringY a aight ilownwartl. inolination :unl thoso oonnot'totl with tho oinl typo har4 ol tho systoin haring about the Saulo ilojgroo ot' upwartl ini'lination. ln Fig'. l two typo hars ainl thoir voluit-ating: links l5 aro Shown. ono hoingl' at tho oxtronio lot'tliainl oinl ol tho aystoni ainl tho othor at ahoul iho iniihllo ol tho systoni. lt will ho notial that in this liguro. wliioli allows thol partav in nornial positions. tho link l5 that i5 oonnootial with tho niiiltllo typo har inakos a inoro ohtuso anglo with tho uhlloror ll. than that link which is oonnoototl with tho oiul typo har. ln othor worils. tho lowor arnisy ot' tho suh-loyors ll aro norinally nioro noarly porpoinlioular to thoso link l5 noar tho onila of tho systoin than to thoso links l noar tho iniiltllo ot' tho systoin. ho obvious. thoro'toro. that whon tho koyl aro. opoi'atoll thizso typo hara noar tho iuithllo olI tho Hysi oni will ha \'o a hiltrhor aoooloration than tho o noar tho oinlsol. tho systoln. fTho, initial loi'oralgo otE tho koy on tho typo har is fg'roator noar tho niiilillo of tho niaohino. than noar tho sitios ot tho niaohino. This is as it shoulil ho. hon-anso thoso typo hars noar tho ini `nllo of tho soginont, whon thoy :1ro lirst sot in niotion. aro moving luoro lirootly against gravity than thoao noar tho, siilos ot' tho syatoni. whioh lattor inoyi'o upwar l at a oonSiilorahlo inolinatioujto tho, rortioal. 'l`ho oll'ool ol' this` arrant'oniont in tho prosoni instanoo is that tho touoh aoonif` to ho Substantially unil'orin throuf'hout tho ay'stoiu.

fis l'ur an my inyontion is oonoornoil. tho typo hara Can bo pirotoil in tho .aogniont 1S in any auitablo inannor. lts hlt'ro shown tho roar part ol: Sant sogluont torniotl with rarlial l lots .-l in whioh tho' typo bars aro, j fuiiloil. :unl aaiil typo hara` y,aro piyotoil on a wiro 3l' ring' in a slot 35 ont in tho` segment 1S, :nnl saiitwiro is sooi'irotl in place hy 'n any ono of a y'arioty ot' ways.V

lt will` into the the sep;- liroatl hoatlbv whi't'lt overlap Soro-ws i553. l and 5l. threaded nppor surliaoos of tho ond parts olf inont and haring` tho ontll ot' tho wiro.

yl`ho caso ahit't motion i oithor to tho sot'inont lh or to tho platen hut l hayo pro'lorrotl to Shift tho aoginent. To thia oinl saiil aogniont Constitut part ot a shift traino. boing supported at itsv ends on arins or hars,` El?, Fig'. l. Those hars extoinl to tho aoginont .thi t'roin tho roar` saitl hars boingr ritrii with tho cross bar 32, So that tho sotrinont 1N whit-h onnstitutos the supports tor tho typo hars ainl tho Cross bar 32 whir-li oonstiintos tho support for the sub-loyors. both torniparts ot' one rigid shit'tahlo traino. arins -lll whioh oxtonil haokw'artl antl upward troni tho bar 32 and at their uppor roar oinls aro piy'ototl at 4l to tho stationary traine work. Thib rikt'ltl shift traino is Ot' Suoi oouhl ho inpartotl forni that i' is easily inatlo .as an integral casting. ln tho prob-ont instant-o tho pivots -ll oons ot tho rilnootl innor onda of pins whioh aro niountoil in poats t2 whore they aro Sorlin/i atlinstably by moans ot sot sorowg Tho posts l2 projoot upward troni parts ll that oxtontl inward 'from the roar onils ot tho Vtraino hars so that Said posta aro. in ol'ort, onsionb` o said franio hara.

- ilo roat lh. oonsistingf ot' a segmental ui aal piooo ot niotal Vith a pad in it. is niountotl on tho 'torwarti arinbl lb: wliioh projoot toward` the it of tho iuaohino 'troni tho sog'inont 1S, no that saifl arin: ain! tho typo Yost constitute parta ot' tho shi'litzhlo traino in whioh tho typo hara ainl snloloyors artl nionnteffl. The pad l? i r nnnlo ot oo rk olampotl in the casing lt' ot' shoot niotal. l lintl. that thor@ is a tlistinot :nlyautagofin makin;T this pail of oork wliioh snhatanoo is praotioally Imis@- loss whon struok hy' tho roturning' typo Vban and at tho santo tiino it is unusually free l'roin that `ort ot roailionoo whirh rosults in ro'hounil. biaiil ihi'ttablo traino niay he Vproi'iiloil with any auitahlo Spring' to assist in tho prosont inatai ro e horishift prot'- in the s" of the tho front i mint tiA l 1n tho prosont instantie ocatott directly ainl horizontally in front ot tho axis of the platen. the plano above tlosorihetl is a liori tlaiil traino also comprises' 1l plant: :intl thv axis ot the shift 1";'111119 -wuiivtt horixoi'rully in thv wir o'l' tho plntvwt :1.1; .1 lt will. o1" voui-sv, hv underit it i5 not vssvntiul thntthv axis ot' l'ruinv `hv uhsolutvli' in this plunv.

hurl! f2 it substantially so.

"it will hf: pvrcvirvd that thv shi'l't t'ruinv is tvmlili tlvtnvhnhlv. so that in thv 1111111ufuzturv of thv nnufhinv, thv tipv 11111l 11nd .suhivvvi' s vstvin :tml thv, links 15. c1111 11ll he 11shlvtl in .suitl traine outside -11'l` thv 11111- chine 11ml thun put in pluvv 11s 11n vntirvty.

lnortlvr to provitlv for thv shift ot' thv s11t1-lvvv1s .t4 with thv typv hztrs. thv :txis ot' the pivot-s ll i5 located snhstuntiully vin thv plant? which invludvs thv uppvr :1111i lowvr iinlis 11ll liv suhstuntiultv in thv s111110 f-tl phtnv 11nd. thatY living thv vusv. thv.

.pivots l :irv also lofzzttvtl in Suhl rvrtivzil plane. Said pivots zxrv. thvrvtore. 1n tht` hnv tzivisvtftion of thv vertical phtnv of thv links` with thv horr/,ontnl plaine ut tho .casing '1l adjusting'Kvrvws h2 to thv r 'b21 r 2t that' vunstittuvs tlm support. for ivy ievvr si) 11. Suid suppm't Gi. C5 consists ot but' or lilov z-iilie. piece of .mc-tui haring :1 trnnsrvrsv Al'ulvruni rih tl projvrting |"ro111-` itis4 untlvr sitlv :unl hvuriugl against thv uppvr xsurt'uvv ot' thv h11r il. 'l`hvsv1vws ('12 puss upwztrtl through thv lmr 2l unil urv thrvmlvtl into thv pivvv ttt. rl`l1v svrvw tt) c1111 hv nivvh :nljustml 11s to vlvrzttion hy loosvnintg ouv of thv svrvws U2 11ml tightvning thv othvr.

'l`hv hvllcr11nh 5H to wl1i -h thv shift' kvy lv :vr 111'111 :'1t'1 is vonnvvtvtl. hns thv Jforni hvst shown in Fig'. 2 whvrv it will hv svvn thut 11v11r its uppvr viul sziitl lvrvr 11rn1is f'orinvtl with 11 vuri'v (35 t'or thv purposv of avoiding; intvrl'vrvnrv with thv :xvtion otc thv other shi lit lv \'.11111l uhm'v s11i l vurrc thv lvvvr 111111 is vurrvtl ozu-ltV upon itsvlt' in suvh 11 way 11s to t'orin :111 invlinvtl ruin slot (36 :itluptvtl t0 coiipvrntv with 11 follower rollvr ('T journnletl on 11 pirot svrvw (3H which is thrvzulvtl into thv lvtt-huini sithl hvztr 21'1' 1f-thv shift frznnv. The construction is sut-l1 thut when thtl hey 5l is lvprvssv l thv upright 111111 ot' thv hullvrziiik 55, inorvg towzirtl thv front of thv 111:1- rhinv 111111 the (11u11 slot tit uvting on thv rollvr t3? cuius thv shift ,tranne to its uppvr position.

it 11 printing lt'vy lvrvr hv now tlvprvssvil the typt .1111 will print from thv lowvrniost one of thv typvs iT. 11s shown in Fig. 5.

lVhvn thv pztl'ts :irv in norinul position :is shown in Fig. il. thv rollvr TL rvsts on 11 hori- 'fiontul lvtlgv or shoultlvr T5 loi-111ml on thv :11111 of thv lcrvr 5T. nntl thv rollvr (3T livs (lirvf-tlv hvnvnth :1 horizontal lvilgjv or shoullvr Tt? on thv lv'vvr 3H. suitl shouhlvrs constituting tlwvllsl in thv rvspvvtirv ruins. 'l`hv vonstruvtion is suvh that thv two rollvrs'urv in vtlvvt hvltl hvtwvvn thv two hori'fzontnl sl1o11hlvrsor(lwvlls11mlTtsothutniotion oi5 thv shift 't1-111111l viihvz' up or tlown from its initlillv, position is positirvlr prvrvntvti. lt will hv svvn,tl111t 1111 :nl iustnivnt ol' thv inici-:1111 srrvw h2 rvsulting in :1 hollily tnovvinvnt of hoth hvll-vl'unks 51T :intl 5H up or 'town togfvthvr. adjusts thv typv l 11rsvf "n1vnt, with rvhition to thv plutvn'f? t'or :ill thrvv of thv positions oll smid svg'nn-nl. .Y

ln ortlvi' to liniitthv1l 1.1;1\'11\\'1 l motion of thv. lt'vys 5323 ninth-l, two iis-top s'vrvii's 77 111'v, tiii'vmlvti th1'oug'1r`tl1vI h111 2l hnvuth thvI arms 137, .35i Suid stop screws cnn be :idi-

meneer l 5 sted up and down and retained in adsted position by set screws 7S,

ace key 8@ is here shown mounted on the forvvard ends of lever arms 8l which at r ear ends are secured to a rock shaft 82 voted :it its ends in the frame plates 2O tie detachable frame. Near the middle of the rock shaft 82 an arm S3 is secured which -projects toward the rear of the machine parallel with the key levers il. ln the machine a suitable universal is mounted Vjust above this arm 83 end the rear ends ol' the key levers, and said universal'bar operates the escapement and other devices.

The shiftable features of the type action and case shift mechanism are not claimed herein, but are niade the subjectmatter of a divisional application liled lieb. 5, lille,

, se. No, 816,757.

Various changes can oe made in the details of construction and arrangement Witho`it departing from my invention.

1xWhat l claim as new and desire to secure hy Letters Tatent, is1- l. ln a front strike typewriting machine, the combination ol' a front strike type bar, a link extending from said type bar toward 'the rear of the machine, a suh-lever having en arm extending downward at an inclinaticnjtovvard the front of the machine and connected with said link, and said sub-lever having another arm extending toward the rear, a key lever of the lirst order and e push link connected with the rear end of said key lever and with said rearwar ly eX- tending arm of the suhdever.

2. in a front strike typevvriting machine, the combination of a series oi' front strike type bars, inks extending from said type 7oars toward the rear of the machine, aseries of sub-levers pivoted in a. straight row and having arnis extending downward and toward the front of the machine and connected with said links, said sub-levers also having arms extending toward the rear of the inachine, a series ofkey levers o the first order, and push links connecting the rear ends of said kev levers with said rearwardly extendingl arms.

ln a iront strike typevlriting machine, the combination o la' series o type bers, a series o sub-levers connected with said-type hars, a series of substantially straight key levers of the first order each having its rear end connected by an upright link with one of said sub-levers, and kevs mounted on said key levers in a plurality of rovvs at diierent elevations, the tulcruins of the key levers being arranged in transverse tiers, the lowest tier being nearest the front ot' the machine, and the highest tier being nearest the rear of the machine, the respective distances oi' said fulcriuns from the back ot' the machine being such as to give to the several rows of keys equal leverages on said sub-levers and. the keys that are situated at a higher elevation having the fulcrums ol', their key lcvers at a greater elevation than the 'nlcrinns of lower keys.

l. ln a front strike typeivriting machine, the combina-tion ol' a series o'i' front strike type bars pivoted in a segment, a series ot' sub-levers in 'the rear oi' said series ot' type bars, said sub-levers having arms extending Jfrom the pivots of said levers downward at an inclination toward the front of the niachine, links connecting .said arms with said type bars, Mose links that connect with type bars near the middle ot' the system extendingforward at a doivnivrard inclination and those links that connect with type bars near the ends oi lie j'stem extending toward the front of the mac ie an upward inclination whereby said sub-levers have a higher initial leverage on the type bars near the middle of the system than those near the end of the syst-ein and impart to said niiddle type bars greater acceleration.

ln a front strike typevvriting n ichine, the combination of a series of front strike type hars pivoted in a segment, a se ies of sub-levers pivoted in a straight line and having arms extending 'from 'their pivots and downward at an inclination toward said nient, links connecting said sub-levers with said type bars, some ol said links extending from said sub-levers to said type oars at an upward inclination and others at a doivnvvard inclination, a series of key levers, and links connecting said key levers with said sub-levers in such fashion as to afl'ord an acceleration of said sub-levers.

Signed at t Ae borough of llziiihattan, city of New York, in the county ol" New York and State of New York, this @sth da); of April, A, D. 1913.

ARTHUR W. Ell/HTH.

Witnesses:

CHARLEs E. Sii/HTH, E. M.l VELLS.

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