US970076A - Type-writing machine. - Google Patents

Description

H. W.'MERRITT.

TYPE WRITING MACHINE.

rumanos Hmmy snr'r. 1,1905.

Patented sept. 13,191@

3 BHEBTE-SHEE'L 2.v

srarnriifrnnr on-FICE."

HENRY W.' .MERRITL or sYRAcUsE; NEW YoRK, AssIGNoR v:ro frnsjmonanc citerai 'wnm'mai confirmar; or simiicUsE, NEW YORK, A coRBonATIoN or NEW. Yong.,

' Be itknown that 1,-' Hisxni'vii'.'llinnnirr.

cit'ie.n dfthelfiiited States, and resident of .Syracnse,'in the county ot' Onondaga' and -Statebf New Yorin-have rinvented certain new "and usetul Improvements Ain Typeiitiug .'.\Iacliiiies,.'of which the yfollowing vis a specification. f i

.-M `v invention consists incertain features -of construction andcombinationsand ar- A fully set'forth herein and particularly pointrangei'nents of iarts.1 a-ll Ot' 'which ivill he ed out` in' the claims;

` My invention illustrated in the accom# panying draivings'in which. .Flgnre ,l is a 'front to'rear vertical sectionalA view of a typewriting machine with --soine of the parts omitted.V Fig. 2 is aview .Figl 1.

similar to Fig. .1 but ivith'soine of the parts shown in said figure omitted aiid.slio\ving a type bar and its connected parts in print ing position. lFig. 3 is a rear yviewin transl 'verse vertical section on the. line .p -.r of

The in'ain trame ol the machine shown in 'the`dra\vings comprises a base portion 1 Vfrom' which ris?`- posts 2 that. support a itop plate 3. shown, is mounted on a carriage (not shown) which is mounted o n thetnp plate 3 for. .transverse motion in aiivnsual or suitable ii1aiiiiei.-` Said carriage may be dra'xvn toward the left by the usual spring drinn and may be providedl with a feed rack 5, the niotion of whicli'vis controlled b r feed dogs mounted on a dog rocker that is 'pivotallyQliionntefd on a bracket Sudepcndingi from the top plate-3; or the motion of said, .carriage may be controlled .by 'any other suitable step-by-stcp feed device. Q

The type bars 'are mounted on a type bar segment fl below the top plate 3. Said segment niav be supported in any suitable manner. but -as here shown Vit is made shiftable up-and down. being' guided by brackets l0 depending,r from the 'top plate 3.' Said 'brackets are formed on .their inner faces with hall races in which play anti-fiiction'mt Q9 there is pivoted the A platen 4 diagrainniaticallyv TYPE-WRITING iitaciiinnfy f g fr specificati@ of Letrersiateat. f` Tatentd Sept '13, 1491*@y Appiiatiqn sied september 7, leas.' Y

semi in. 277,381. Y balls or rollers 11 ivhicli also'coperate with correspondingracetvays formed in the right 'and left-hand ends of the segment 9; Said i segment may be shifted npaiid down by any p Suitable case shift device. Y So farfas my ine vention is concerned the platen 4 may be inade shiitiible up and dovvn instead of the A segment 9. Front-strike upwardly and rearivardlg` swinging type. bars 1Q are pivotal-ly mounted ou the segment V9,111 any suitable manner.Y As shown in the present `instance 13 thatlies in a slotr formed iii the -uppei face of the segment 9, andeach of said type bars is mounted in one ot" a series of-radial thetype bars 12. carries two types 15, tone .L K. .said type barsare pivoted on apivot Wire.

or another ot which is adapted *tostrike-. vagainst the `front face of theplaten 'tac-rv eording as the segment. S) 4is in its upper-or* `its lower position. 'The 'free ends of the type bars 1Q normally rest, on a segmental pad lbavliich is supported by rods 17 pro- )eating toward -the frontxot the machine' from tliesegnient 9; Character` keys lSare mounted on the, forward ends of key levers' 19, which at their rear ends arepirated on'y :i transverse pivot rod :Etlfivhich is mounted at its ends inthe side platesot'the basejpm- 'tion 1 ot'the m'ain traine. 'Each of saidkey levers formed near its're'aif endwith :1

`notch that. hooks `under the. pivotfrodBO.. l

Said key levers are spaced apaitandguided attheir rear ends by a comb plate 21 mo'unted inthe main .frame just back of the'pivot; rod 20 and having formed therein a series of vertical slots, one for each' of saidv key/.le

sesVA vers. The comb plateQl is secured atits l ends to the'sidc plates of the base portionl of' the main frame by screws Q2 passing throught-ars 23 of said coinb plate and threaded into said side. plates. The key levers 19 are 'guided near their forward ends Vby a comb plate, 24 secured to a cross-bai' 25 of the main frame', which cross-bar lies .above the series of keylevers and has 'secured to its under side an arresting pad26. Angular sub-levers 2T are pivoted on a rod 2S that lies beneath the. series of key levers I 19' and is n-ionnted on its ends in. thel'side Y xvlates` of the vbase portion 1 of the main traine. Cach of said sub-levers has anl upstandingr arni, tothe npperend of which end ofa llink 30, the forward endlof Which is pivoted at Y sub-levers 27 has a rearwardly projecting V3;? 'of each of the sub- :31V to one of the type bars l2. Each of the arm 32, the upper surface of whlch is engaged 'by a member forming part of or mounted on one of the'keylevers 19. Said member preferably consists of a roller 33 journaled 'on a headedpin or 'screw 34: projecting fronrone side of the key lever 19. The rollers 33 are preferably grooved on their rcripheries, the up )er edge of the (arm levers lying in the groove in the periphery oone of the 4,rollers Each' of the sub-levers is formed with a forwardly* projecting arm 35, to

which is conneeted.the upper end of a returning spring 36, the lower en dot which is connected to a cross-bar 3'( which 1s secured at lts ends to the. side plates l by screws 38 passing through ears 39 of said bar 37 and 'QJ-" threaded into said side plates. The' conf struction is such that Awhen .any 'key 18 is e operated the corresponding key lever.'19,is

depressed and the roller 33 on said key lever depresses the rearwardly extendingv arm 32 of the corresponding sub-lever, thus moving the upstanding arm of said sub-Jever' toward the back of the machine and causing the'link 30 to swing the corresponding type bar 12 to the printing point7 all asrindieated Ain Fig. 2. As the arm 32 and the key lever. 19 more about diierent centers, the roller 33' will roll -a short'distance along the'arm 32 of the sub-lever when the key is depressed.V The the; upper-ends of ysaid arms into proper re'- lation the type bars, It results from this construction that Wnhen one of the type bars vnear the end of the segment is operated by its key lever and sub-lever, the resistance o'-t-lie link 30 on the upper end 0i the sub- 'levei` tends, during the key depression, to -turn or twist the sub-lever about its pivotal point in such 'manner as to throw the rearwardlyv extending arm 32 thereof laterally toward the center of the machine. This twisting tendency is resisted by the side of the groove in the roller 33, as Well as by vthe collars 27'," so that the sub-lever is not allowed to bind'between the two adjacent collars 2. and affords a fore and aft movement of the sub-lever without effecting a binding thereof on its-.pivotal bearings.

A universal bar 40 extends across the machine beneath the arms 32 of the sub-levers.

Y Said universal 'bar is connec'tedfatfits ends- 'to arms 41.Which in turnfarefpivotally-r Y mounted on thel ivot rod '28. 1t; will be perceived thatv w en an; c 4araoter key -is opera-tedthe universal barl40-is depreed' by the corresppndingsubflever.. Said universal bar hasl a 1'earward1y 'extendng cen-- trally, located arm f1.2 and headed screw threat1 d Vin'toit'near 1pts rear end. Said'serew `passes loosely through' an elongated slot-44' formed in the having a shouldered lower end of 'a link45, theup'ptr end of' I lwhich ispivoted'to the forward end of an I Y arm 46 that extends toward the front of the.'

machine from the dog rocker 7. The screw 43 does notnormally stand in the bottom of theoslot 44, but stands a short distance above the bottom oifisaidl slot so that. the link 45 and the dog 1 Joker 7 do not begin to move until thefkey even sub-lever, andtype bar Vhave already made a part of their stroke and have acquired some momentum. .In order that the amount of lost motion between the screw 43and the1bottom` of the lf slot 44 mayQbereguIated'," the .lower end of the link 45 is made in al separate piece from the upper end of said link and is threaded on to' theupper end-of said link so that the length of the link may be adjusted by screwing said lower endnp or. down. The dog rocker 'and universal bar are restored to normal position by a spring-47,- compressed betweenthe bracket 8 and the'upstanding vare mounted. l e

In most front-strike type actions there are a number of loose joints betweenl the key and arm of saiddog rocker on which the dogs 6 e the type bar and itis desirable to have as -iew as possible of these loose joints between ,the type bar and the universal bar. -It is desirable to have the escapement, which is controlled by the universal bar, let off as soonv as possiblev after the type` reboundsv l.from theplaten and `every loose joint bei tween the typebarand the universal bar lessons the precision with which the letotf can be controlled. In a type action of 'the general character set forth in this case-the universal bar controls .the escapement morev exactly if said universal bar' is operated by the sub-levers than it does if operated by the key levers. It is not new to operate the universal bar by means'of the sub-levers of a front-strike typewriter, but it is new to mount Athe universal bar beneath the horizontal arms of said sub-levers, and this is the simplest scheme for this purpose with which I am acquainted. The universal bar is thus simply a straight bar lying beneath horizontal parts having an up and down motion; and this is a simpler construction than those in which the universal bar moves horizontally and is operated by the upstandin arms of the sub-levers.

. arious changes inthe details of construc- 130 tion and arrangement may bemadefi'vithoutby Letters Patent., is :f-

' .1. In a typewriting machine, the combina:--

` between said kevlover and type ba'r, said sublever being p'i'voted belowsaid key lever' v. i-and jhttving. 'a'n upstanding arm connected 10 with said type bar and' havlng below the key leveril rearwardly extending arm and 'a for- Mwardly extending arm; a member on said.

.- key lever enga ging' one, of the last mentioned armsand a returning spring 'connected to 'said key'lever an engaging another ofl said arms; and a` returning' spring connected with the other of said arms t.

H3. In a typewritinfr machine, t'he'combi-f' nation' of a series of ey levers.; a series 'of angular sub-ledere, each having annpstandging arnrnd' an approximately horizonta plrm; h 'series of type;bars, e'a'ch connecte "n-ithr'o'neef saidupstandmg arms,'sa id se- "ries of typjebars being of lesslwidthjha'n said sries of key levers and the upstanding arms'of'thosesub-levers near-the ends ofthe Aseries being bent toward themiddleof the mlzeliinevfto bring `them into r`'proper relation 1 with'thei respective-type bars;'and gtooved rollers connecting said key' levers and said approximately horizontal .arias of said sub# ,1e-\ ers.-- v A 4. `I i. a 'typewriting'ma-chine, thecombir nation f a series of key le\j ers; a series of .type barspf width than said 'series` ot' -ke. v levers; a series of saillrlevers, onefor each of said key lt-vers. each offs-ard sub-levers --havlng' an npstandn'lg arm connected with one tif-said type bars aml-lia\'ii1g also an approximately horizontal arm; and a groove-d 'roller connecting each of s'ald key levers and said approximately horizontal arm' of the' corresponding SubJeYer.

5. In a front-strike t}"p ewriting machine, the combination of a series of key levers; a. series of upwardly 'andrearwardly striking type bars; a series of. sub-levers, each having an opstanding arm' connected with one of said type bars and an approximately horil-I' z'ontal arm, the upstandmg arms.' vibrating fore and aft of the machine means on said -key levers engaging said approximately horizontal arms; and a universal bar opero' ated by said approximately .horizontal arms.' 6 A .6. In a ont-strike typewritingmachine,

.thecombination of a series of key levers; a

l series of type bars; a series df sub-levers .each connecting one of said key levers with one of` .s`aid type bars; :1 rod on which said suh evers are pivotally mounted: and .Ja

i'miversal bar pivotallymounted on said i'dd and adapted to be operated by any of said' sub-levers. j l i In a front-strike typewrit-ing machine, i vthe combination of a series of 4l {eyt"lev ers; :1975) series of type bars; -a series ot" sub-leversv .each-having an 'npstanding arm connected 'with one of said type bars and an approximately horizontal arm; a rod onwhich said suh.- levels arer pivotally mounted;V 'means' 7'5 whereby 'each of'said key leversoperatesone 'i of said approximately horizontal' arms; and r a" universal bar pivotally mounted on 'said' rod andmdapted to be operated by any of; said approximately horizonta arms. A:sol Q. Ina typewriting'machine; "the-combi-r` nation ot' a eries 'of-key levers 'pivoted'at-r` their rear en s; 'a series of upstanding sub. 4levers, each having an approximately-hori-;

'a universal bar lying'belonY said approxi- `matelyhorizontal arms anch adapted to be, tdepressed by any one ofthem; 'aridnpwardly and rearwardly striking. type bars operated; by said s'i1b-levers.,4 9. Ina front strike typewriting machine,` the combination' of a series of key levers, a series of angular sub-levers eac-h having an; 4iipstantfling arm and an approxiti'rately henrizontal arm. a'series'Iof type'bars e'ach 0.011595 nccted with onefof said upstanding ar'ms, 'and 'groovedrollers mounted m said key' levers fand engaging. said approximately 'horizontal arms on'said sub-levers.

' chine. thefcombination ofajseries of upwardly and rearward-ly striking type bars,l a series of three-arm sub-levers each connect-X ed by'one of its armswith'a typebar. a se- .'anarnfol" on'e of said sub-levers. and aise- A ries of key 'loyers provided with antit'i;ic .ti'on rollers'each adapted to hear oo oueof .the arms of the associated sub-lever.

the 'combination 'of .a series of kev levers, 'a series of upwardly and rearwardly striking' 'type bars; a series ,of 'sub-levers operated by 'said key levers and eaclrlxaving an upstandand an approximately'horizontal arm, the ,said npstanding arms ilibiatingy fore and aft' of the niachine'and anniversal bar operated by Asaid approximately horizontal arms.

the-,machine to bring them into proper relazontal arm extending below' said 'key levers; 8'5 n 1Q. In a front strike typ'ewriting" malod,V

ries of restoringspringseachlwconnected t'o`1054 1 1. In a' front' striretypewritin'g machine, 10"

' 12. In a front strike typewritingmachine,; 120v tion withltheirrespective. type bats, andi-34" ing arm'connected with one'of said type hars 115 y rooved rollers.'v each connecting one'of said ey`lev'ers with a sub-lever, each roller bein mounted on ,onel of the -leve'rs and the ,other lever running in the groove of the roller and said rollers o erating 'to transmit motion from the key ever tojthe sub-leverand to take `the side-thrust due to the bent, form of the ,npstanding arm of'the sub-lever.

13; In a front strike typewriting machine, the combination of a series of key levers, 'f a series of type bars of le'ss widththansaid series of key levers, a seriesv of sub-levers o ne foreach k'ey lever, each of said sub-levers having an upstanding arm .and an approximately horizontal arm, and4 .a series ol grooved rollers one'connecting each of-said key levers YWith the horizontal arm 'of t e correspond-ing sub-lever, said roller being mounted 'on neof said levers anfl'the other lever'running in the groove ofthe roller and' said roller operating, .to.t-ransmit motion from the -key leverto tl'iesub-'leverandalso to `takethe sidenthrust. due to the difference i"n width' of the system of type bars and the system of key levers. l

14. In'a front-strike typewriting niachine, the combination' of a` series of key levers, a series of type bars' of less widththan 'said series ofv keylevers, a series ofy sublevers ez1eli-having an upstanding armconnected witha type bar and ahorizontal arm, the npstanding, arms of those sub-levers near the ends ofthe series being benttoward the middle of the niachine to bring them into roper relation with their respective type ars, and the horizontal arms being disposed below; the key levers; and connections between theseveralkey -levers and the horizontalarms oLthe sub-levers 'comp grooved. rollers," each roller. being mmmon one of thelevers and the other llever running in' a' groove of the roller and said roller operatin Ytuortriinsmti motion ronilthe -keylever toe sub-lever'and to vtnlethe side thrust'f'due tothe bent. formofzthe up- 45 levers, a fulcrmrod below 50 near the endsof the series bein benttoward .55

the middle of the machine to brmgthem into roper relation with theirrespective' ty bars nd'the. ,horizontal arms "of the s uh levers being isosedbelow the key levers, and grooved 'rol said key levers with the horizontal *armof the sub-lever, each roller being'molmted on one of the levers and theother lever running ina grooveof theroller and said rollers operating -to transmit; .motion from the key lever to the' sob-lever and to take-the s idef thrust due to the bent form of thenp- 1 standing arm of the sub-lever. l 'Signed at Syracuse, ,in they coim of e'rs eah eonnecting one of 60 Onontla a,an(l State of New York) this 5th '7.0 i

day of `eptember A. 1905.

HENRX W.' MERRITT.: Witnesses: r z JOHN S, MITCHELL,

A. AUMENT. f

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