US1096010A - Type-writing machine. - Google Patents

Description

J. H. BARR. v TYPE WRITING MACHINE. APPLIUATION'FILED NOV. 15, 1912.

4 SHEETS-SHEET 1.

FIG I Patentd May 12, 1914.

LE/BARR.

5 TYPE WRITING MACHINE. I APPLICATION FILED NOV. 15, 1912.

' Patented May 12-, 1914. O. a 4 SHEETS-SHEET 2.

. s I v l 5 -41 g I '4 I I I I an I 59 r no 20; 20: 57 W I 40' I 9 3 I; I r

44 05 07 will 1|" lln Ill 40 as 37 A5 FIG, 5 5/, F41

Patented May 12, 1914.

4 SHEETS-SHEET 3.

I'NVENTEIRL WITNEEEEE 1-115 ATTORNEY v J .H.BARR. TYPE WRITING MACHINE.

7 APPLICATION FILED NOV. 15, 1912- 0 1,096,010. Patented May12, 1914,

- 4 SHEETS-SHEET 4.

WITNESSE5= wwwnnirn snares earns oFFIcn.

JOHN H. lBAli-R, OF NEW YORK, N. Y., ASSIGNOB, BY .MESNEiASSIGNMENTS, TO REM- ING'I'ON TYPEWRITER COMPANY, OF ILION, NEW YORK, A- CORBORATION OF NEW YORK.

TYPE-WRITING MACHINE.

I Specification of Letters Patent Patented M ay 12, 1314.

Application filed November 15, 1912. Serial filo. 731.506.

Improvements in Type-lvriting Machines,

"in the preceding figures.

of which the following is a specification.

llly invention relates to carriage feeding or escapement devices for typewriting machines and its principal object is to provide improved devices of the character specified To the 'above and other ends my invention consists inthc features of construction,

combinations of devices and arrangements of parts hereinafter described and particu; larly pointed out in the claims.

Two main forms of my invention with changes of detail are illustrated in the. accompanying drawings, wherein- Figure 1 is a vertical front to roar sectional view of so much of a typewriting machine as is necessary to illustrate my invention. Fig. 2 is an enlarged detail View of the releasable connection between the carriage feed rack and the escapement wheel shaft. Fin. 3 is a detail-side elevation partly in section, the section being taken on the axis of the escapement wheel. *ig. -.i is a horizontal sectional view taken on the line .c in. Fig. .3 and looking in the direction of the arrow at said line' Fig. 5 is a fragmentary elevation of the escapement wheel and associate parts looked at from the front. Fig. 5 shows a modified connection between said escapel .ent wheel and "the carriage. Fig. 5 shows a further modification (f such connection. Fig. 6 is a fragmentary front to rear Yertical'sectional view-of a typewriting machine embodying a form of my invention different from what is shown Fig. 7 is a fragmentary detail view showing a front elevation of the l ig. 6 form of the invention. Fig. 8 is a fragmentary side elevatiompartly in section, of Fig. 7. j Fig. 9 is a perspective view of certain of theactuating devices shown in Fig. FigsLiO and 11 are sectional views of the oscapement wheel shown in Fig. 6, the sectionsvbeingftaken respectivelg; transversely of said wheel and axially thereof. Fig. 12 is a detached view of a detail of theFig. 6 form of the invention.

Fig. 13 is a fragmentary face view of a part or cover of the escapement wheel shown in Fig. 6.

Referring tion shown in Figsl to 5 inclusive, the main frame of the machine as appears from Fig. 1

comprises a base 1, posts 2 and a top plate 3,: above Wl'llCh lS supported a stationary trackway & connected through anti-friction balls 5 with the rear or slide bar of a carriage 6 on which is rotatably supported a platen'L.

Adapted to cofiperate with the front face of the platen are a set of type bars, each type bar 8 being fulcrumed at 9 bn a support 10 and connected t-hrougha link 11, bell crank 12 and secondlink 13 with aprinting key lever l t which-is fulcrumed at 15 in the rear portion of the base and is provided with a restoring spring 16. Secured to posts 17 depending from thecarriage 6 is a feed rack 18 that coiiperates with a feed pinion 19 loosely. mounted at the upper end of a vertical shaft 20 that bears at its ends in stationary pivot pins 2122 secured respec tively in the top plate 3 and in the base 1. The upper end portion of thes'haft 20 on which the pinion bears is reduced in-diann cter' andthc pinion rests on the shoulder formed between this reduced portion and the.

body of the shaft, being prevented from rising or moving upward lengthwise of theshaft by a collar 23 fixed to the reduced end portion of the shaft. As clearly shown in Fig. 2 the, hub portion 24 of the .pinion is provided with one or more downwardlyprofirst tothe form of the 'in'ven I jecting ratchet teeth 25 which normally en- 1 gage with erownratchet teeth 26 formed on the upper face of a clutch'inember :27 which provided with a slot 28 coiiperating with a radial pin 29 on the shaft 20. A coiled spring 80 confined between the clutch men'r ber 27 and a collar 31 fixed to the shaft below said member constantly presses the clutch member upward and normally Ina-intains the ratchet teeth 26 engaged with the tooth or'teeth 25 on the pinion 19, thus normally connecting the pinion with the shaft 20. The clutch member 27 may be lowered along theshaft 20 against the pressure of (not shown), thus disconnecting the pinion l9 fromv the shaft 20 and releasing the carriage so that it mayhave a free or continu- "the spring 230 by any suitable releasing means my one; mi

and: 4

mpwg f rm 0'? M m: the space ban "1 l A Dunn mam 14116 imwz-i er lever nu! uu i: L

(not shown) will operate tolower the universal bar and swing the lever 47 on its fulcrum, the rear arm of-said lever swinging upward and causing the top of the actuator 45 to engage with the bottomof the overlyvving head 3i), lifting said head and causing the pin to slide upward transversely of the plane of rotation of the wheel. As soon as the head has been lifted far enough to clear the stop face, 01' arresting means 4+1, that is, to the dotted line position in Fig. 5, the carriage motor spring, acting through the connected parts as described, will .draw the carriage leftward and turn the escapement wheel until the next head 39 to the right of the head just lifted will contact with the stop face. and adjusted that this movement of the escapement wheel corresponds to a letter space movement ofthe carriage. On releasing the actuated printing key lever the lever 47, actuator 45 and connected parts will be restored to normal position. Should the advancing head 39 move so rapidly that it contacts with the actuator 45 before said actuator has been lowered out of its path, the full letter space movement of the wheel will nevertheless not be prevented for the advancing head will act against the cam face 46.:1 1111 overcoming the spring 58 will force the upper portion of the actuator-45 forward about its pivot l8 and out of the path of the advancing head 39 which will continue to move until it contacts with the stop face lQ-As soon as the rear arm of the lever 47 is swung downward far enough to lower the actuator 45 below the head 39, the spring will operate to swing the actu-' ator rearward on its pivot into contact with the bracket 40. It will be understood that at each repetition of the operation above described, the carriage will advance a letter space and the escapemcnt wheel will turn a distance corresponding to that between any two of the pins. ln ordinary operation after the pin has been lifted above the stop face 4% and escapes leftward past the lug 43, it will drop down to normal position again through the force of gravity; but should the pins for any reason stick in elevated position, then as the wheel is turned and they again approach the operative position, the tops of such pins as may be elevated will contact with. the right-hand upturned end or cam of the cam piece (34: and will be forced or cannned downward thereby transversely of the escapement wheel and into contact with the supporting shelf 37.

In practice the construction above described may be simplified by dispensing with the clutch mechanism comprising the spring-pressed member 27, and securing the feed pinion permanently to the eseapementwheel shaft. In such case in order to release The parts are so iproporti net? ward and being adapted to contact.

the carriage the engaged pin-head 39 may &

be separated from the abutment or arresting means by a relative movement of the parts transverse of the escapement wheel. This may be accomplished either by raising the escapement wheel bodily so that the pinheads will clear the abutment or else by lowering the abutment out of the path of the pin-heads. These modifications are illustrated respectively in Figs. 5 and 5 In Fig. 5 the escapement wheelshaft 2O is replaced by a shaft 200, the ends of which are reduced and fit in bearing openings in the base 1 and top plate 3, these reduced ends cooperating with halls 201 and'202.

The lower ball 201 bears on an adjust-able screw-pin 203 which is fixed in the base while the upper ball is held down by a headed pin 204 the head of which normally rests one boss 3 0n the top plate and is maintained thereagainst by a leaf-spring 205. Motion is transmitted to the shaft 200 from the feed rack 18 by a feed pinion 206 which is fixedly secured to the shaft 200 as by a cross pin 207 passing through the hub of said pinion. The escapement wheel supporting the pins 38, 35) is fixed to fthe shaft as before and the heads 39 of said pins are adapted to cooperate with a vertical stop face 208 on a lug 20$) rigid with a bracket 210 fixed to the base 1. The opposite face of the lug is inclined as indicated at.2l1. Pivoted at 212 to the bracket 210 is an arm 213 provided with a double cam 214i which is adapted to cooperate with the tops'of the pins 38 to insure the proper positioning thereof. The tail 215 of the arm 21 3' extends downward and is normally maintained against a stop pin 216 on the bracket 210 by a spring 21"- which surrounds the pivot 212. The shaft 200 maybe lifted by devices operated from a key-controlled bar or bail 218 on the carriage. Said devices comprise a lever 219 having a fixed pivot 220,- one arm of said lever being provided with a pin 221 which is-adaptcd to be engaged by the keyoperated bar 218, and the other arm of said lever being forked or bifurcated to loosely embrace the hub of the pinion 206, the forks or bifurcations 222 curving upwith the under face of the pinion 206.

In operation, when the carriage is returned from left to right the pin heads 39 will successively ride up the inclined face or cam 21] and drop down in front of the lug'209 so that the return movement of the carriage is free and unobstructed. When it is desired to release thecarriage for m'oveinent from right to lcft,'the bar or bail 21 may be depressed as-by operating its associaterelease key, this depression in turn actuating the lever 219 which acts against\ the pinion 206 to move the shaft 200 upward longitudinally, the spring 205 yielding for this purpose. This upward movement, of

cc limited than iis iower reduced not disengagc from its bearing opening in the base 1', unis it is snfiicient :50 enable the pin heads 39 to clear the arresting or step facc 2G8, and consequently the carriage may advance freely and uninterrup'i'cdlv, L he pin heads 39 turning in a pinnc nbcvc the hop of the ing- 209. ()n releasing the actuate d bar 218 the parts will rcnn-n to ncrinal pcsit-ien, this return being assisted by iiiie 205.

In the Fig, constznct-ien the shaft, 200 prcvidmi W151i 3, iiX-cci bearing at; the top as Well as at the butt-cm sc that it is held against i mgii iinnl mcvcmcn'; in either directicn. The p l 39 in. this ccnstrnc tion cniipcm ice with a, iug 223 integral with :2 how onini arm pivcted nt- 2 25 on n stnndcwi 'ci'mry on the base 1. A cnin i'nczn bcc 52551 is: nice seem-ed to said ctnni rd nui, is prc'v..ticd

m. a cam Me. A coiicc hung 9- ccnnccted at its cncis renpectivciy in the pi cicci an nun. c imi'mniiy maintains and snii arm 22 engaged with a fixed stop This mm is ccnfirciied in snitthe eimfi end. W111 able iur key nci'n'nteci (icvices beginnin use I termimting "WiiTil nv link: 01? member 523 he imvez' cm! vvii'c m {:0 the hen snifi rec member 22 1 18 iOW- the crm 224% against 27.1111 5224i; 11 icnse key is a cred, swinging down the spri and icW-ering the arresting ricvicc 0r abutment out 01" the pct-ii cf the pin 39 so that the shaft, 200 free to .rcl'nie and permii nl continuous leftward movement the carriage.

may lic noted in ihc F -5 COD" the back: 01% me ing 43 IS 111- cc s0 r i Qii il .iicnxi 39 i' v EHiB up ever the inn; thc 5 ccnstrnc eicnsn 4 The scccnii. cf the mi rims the invenbicn herein iiiueimyid a sh 11in i' 8 to 12 inclusive, the invention applied to a vertically disposed escenemenc Wheei having n horizontally arrange-=53 axis or shaft instead of 0 a horizontal escapemcnt Wheel having n vertical Oi' shaft as in the first described construction, The typcwli'iiing machine iiinsizrated in Fig. 6 Ims'a main frame comprising side plates connecteci by :1 top plate 66 above vhich is xncnntcv a stnticnary track-Way 67 connectcvi through nnti-fricticn balls 68 with a car liege 69 simpcrting a platen 70 with the front face whereof cciipcratc type have 71 pivoted at: and each connected threngh a train of devices comprising a iink 73, a, tog;- gic ciemenin 7%, a, second link 75 am a bell crank 75*? with a key stem 77 provided with key 78. The toggle ciemenis 74cm each i'uicrmncd as at 79 on. :ifixcd Summit 80 and are prcvideri with metering cpi'fiige 81. The

and the bracket 99.

tail portions 74: of the eogglc elements are adapted to actuate a curved universal bar or member 82 which is vertically disposed and is pivotnlly connected at about its middie at 83 to an arm 84 on a rock shaft 85. At its sides said member 82 is connected by ears with arms 87 rigid on a rock shaft 88 which rock shaft is connected to the rock shaft in the usual or any other suitable Way. Fixed t0 this i-c-ck shaft is an npwnrdly ext/ending arm 8!) which is bent rearward at its Upper end and terminates in a vertically disposed cpcmiing n cc 90 (Fig. 8). The ca'z'riage G9 pi'cvidcd with :1, feed rack $1 with which mesh pair of gear Whceis 92 and ziri'nngcd face to face and having 10st motion. connection as izhe Bmith Pi'emici N0. 10 machine which this pare of the ccnsiai'ncticn generaiiy resembles:

The wheel 92 is snitnbiv ccnnecieti with the us-reel marriage motor or spring (ii-12in 9% n gen? Whcci 93 meshes with a. pinicn nicicii is ic-csciy mounted n a hcrincnini shaft Ni-extending fore and oi? the mccninc, e szmfi'; hearing at ii's ends in. pivct pinc i) The rem? pivciipin. 97

snpperied m;

' fcizwn i puck pin is suppm n-P- 'i bracket; 5)? secured icy screws 100 in p 10*! fast cm the casting 98.. inc shaft 'Fz'ceiy ti'n'cngii an cnicrgcd openin sniri piniie 11 [ii pinicn 95 viicied. with n. nub 95-"- which abuts 21 1G2 (but cngrercs with a i'mvcl c wiieei hm'cinn'ficr described n-nci venis fax-Ward movement. ct? the a", me spring (1mm cast is .pvcins-her incmcnt 5: prepinicn 95 with crown mic-he? teeth which my Wli-il. POl'iESDiH:(ililg int-elect f a: V

Inner is Wick itch member 102*. Said cintcii. f

wideii with ingcrs 104: which mtchcc formed in :1 flange 105 on time shaft 96. A. coiled Spring; 106 is confines! iccizween the flange 105 and the head cf file clutch member 103 and ccnsmn'tiy PTESSQS the fieeth cf said cintch member into engmgimcni' with the ci'cwn icfciic't teeth of the pinion 2'95" Suit pe rciensing means (not shown) {are pm .ed for moving the clutch member rcnrwnrri and disconnecting the gem: Wheel from the shaft 96 an that the carriage may mcve freely le'fhva under the action of the springdrumf' Ordinarily, however, the carriage is ccnncctcd with theshcft 96 as (ic scribed and said shaft is ccntrolicri by escapement devices which are opernfivc from the universal bar 82. These cscaipcmcnt deiccs ccm'prise an esczipemcni; Wheel 10'! M ranged an the shniv 943 between the platc 1,01

Said Wimi cO1Ii} 7i I ScS (as clearly appears from Fig. 11) n huh 0: barrel portion .108 integral with which is a ratchet wheel 109 cocperative whcrcwii li is a spring-crossed back new! 110 cf the usual construction (Fig. 7), The hub fiebcreo'i out to which it is secured by a set screw 1.12 that suitable means is a dished plate 113 the pe- .notches 111 (Fig. The forward end between the tongues 116, said box being seportion 108 and acting therewith as a single member or escapement wheel. Said wheel is swinging movements of the members 118,

containing element or holder.

as indicated at 111 to fit over the shaft 98 is received in a tapped hole in the "li'u ig and abuts against the shaft J6. Secured to the forward face of the ratchet wheel 109 by any riphery of which is formed with a series of of the hub 108 is slightly reduced as indicated at 108 and receives a plate 115 which is provided with a series of tongues 116, said tongues being turned rearward at right angles to the plane of the plate and fitting into the notches 111 in which said tongues are suitably secured. The plates 115 and 113 provide in effect a'hollow box in the periphery of which are a series of rectangular openings or slots 117 formed by the spaces cured in rigid relationship with the hub provided with relatively movable teeth or elements in the form of fingers 118, these fingers, of course, being arranged in place before the parts 113 and 1150f the box are assembled. Said fingers as may be seen from Fig. 10 are shaped somewhat like key stones and-areradially arranged, each having at its inner end a ro inded'teat 119 which fits loosely in a round guide hole 120, the series of guideholes 120 being formed radially in. the front end portion of the hub 108 to the rear of the reduced end108. The outerend portions of the fingersl18 are reduced as indicated at 121, these reduced portions forming with the body portions shoulders 122 and projecting radially-outward through the openings 117. These reduced portions 121 are rectangular in. cross section and provide a series of relatively movable escapement teeth. As will. be understood from F lg. 11 the fingers or toothed members 118 are adapted to swing to a limited extent fore and aft of the machine within their receptacle or box 113, 115, owing to the fact that the part of the box farthest from the center is of somewhat greater depth than the height of the toothed members due to the dishing of the cover plate 113. During the the purpose of which is to provide for the escapement or step-by-step turning movement of the escapement wheel and parts con-- trolled thereby, the shoulders 122 will slide tongues 116 adjacent the openings 11? in which openings the teeth proper 121 may move freely back and forth transversely of the lane of rotation of the (3S(tl])(1i'i0lll. whee while the inner ends of the toothed members 118 are controlled by the guiding teats 119, the result being that the members 118 are in effect loosely pivoted in their Twelve of these toothed members 118 are shown in the present instance but, of course, the number may be varied to suitthe particular conditions of the construction in hand.

AS lIl. the prior construction the movable teeth are adapted to coact with a fixed arresting means or abutment which is shown detached in Fig. 12. said means being in the form of a plate 123, the right-hand end of which provides a verticalstopping face 124. in'the path of the teeth and for-engagement thereby. The plate 123 provided with an enlargement 125 which islsecured by a headed screw 126 to the plate '10l. A dowel pin 127- projects forward from .the plate through a hole in the enlargement, and assists to prevent displacement. of the plate 123. Said plate isofi' set forward from-,the enlargement 125, as will be understood from Fig. 8, so as to be in the plane .of. rotation of the teeth 121 when.these are inoperative position at the forward endsof the slots 117. In order to insure that. the teeth .are in line with, or in the plane of rotation of, the stop 123 as they near itduring the rotation of thevelement or wheel 107,- a cam- Iningmember or means 128 separate from said wheel is provided, saidcamming memare provided comprising a pusher or actu-.

ator 130 horizontally disposed and pivoted at 131 at its forward end to a rocker mem her 132 which is best shown in Fig. 9. This rocker member comprisesa crank-arm portion 133 to which the actu. ztor 130 ispivotcd, and a hubportion-134; which issuitably secured to a rock shaft 135, the ends whereof are pivoted on adjustable screw pivots 130 supported in ears 99 projecting downward from the bracket 09. The hub portion 134 isprm dedwith a leftward extenice sion 137 having an enlargement 138 in-whichq is secured a pin 139, the pinextending laterally rightward parallelwith the extension 137 above thesame, said pin being, adapted to be actuated by the operating face 90 on the arm 89. These parts are normally separated as' shown in Fig. 8. A coiled restoring spring 140 is secured at its forward end to a stationary pm 141 on the left-hand car 19 and at its rear end to the pin 139." The somewhat intricate character .of the rocker member 132 is necessary in the present case to avoid interference with other parts' The actuator is normally held up against a 1:65am invention it will be observed that it PlOVidFS :Ior full dwp, thu carriage moving the {1133 letter space distance during the mwemmlt 0; a priming key in one direction. Ana-she]? advis {that the inven- 1119, 'iiabifity of skipping,"

iectcmmnon to escapelnem; z-ticulafly uv ii rapid. open U we fixed abut- Ms; in front W e right-hand Side 0:? the actuator is cut, away to "pz'avide an in 'llinei or 1:11 11% 130 The aci which through rob 55% 5.1 401 fawn/ am, hm; wit; 1' comml ied of; stop devices; 20m 2i pin curving d firnm the min-n0 ccmtasting with a,

15 secure to ear I 1121111196 (mt manner in which an F is my l'nnvlng the, 00-

e tooth of the, escapw to ("0 311 1 a key 1rd chief ad- 6162116111 4' g2 is t. obi,

re :Wmrd of exam ing the 1011s, mymg "Ward swinging ing the actuaib. mm 1:21 'tmwarl will be undersflw .32, is; imgm: i021 in t; uingxgc that 7 place, 8.1 0116 time during 1 mom sf hhe escapament m d Kali."

wage muizm m spwith he sebup Ems swing bowl advancr pivot 131i posiision 1 I with the 1%]. m 5" second 165%; the carrin 336th '1. cessively moved out 015 1 face 12 will TL f. main swung u'wzzrd in .plute if sham; at

swing the 10k with the plate 115 :12; shown up, 3

, of Fig 1; which time 1;"

, in register 0): line. with. the stop 11ft.

Among the advantages obtained $270121 11y l the an}.

ins am riage, and a key controlled actuator for moving said teeth out of engagement with said means, said teeth at times exercising a caminin eli'cct on said actuator durin D P:

movement of said element.

cessively with said teeth to arrest the car-- riage, and a key controlled actuator for moving each tooth out of engagement with I said means, the next succeeding tooth to the path.

said levers and cooperative with said teeth.

one moved being operative to cam said actuator out of its path during the movement of said element resulting from the operation of said actuator. i

In carriage feeding mechanism for typewriting machines, the combination of an element provided with a plurality of relatively movable teeth, a cooperating abutment, a key controlled support, an actuator pivoted on said support, and a spring for actuator, said actuator. after moving oiiedooth out of operation being itself movable by the next succeeding tooth out ofits In a t-ypewriting machine, the combination of a carriage, a vertical shaft disconnectibly connected to said carriage, a horizontally arranged escapement wheel supported on said shaft,.teeth mounted to move up and down on said escapement wheel, a cooperating abutment, and a key controlled actuator for-said teeth.

'5. In a typewriting machine the combination of a carriage, a vertical shaft disconnectibly connectedtosaid carriage, a horizontally arranged escapement wheel sup-.

ported on said shaft, teeth mounted to move up and down on said escapement wheel, a cooperating abutment, printing key levers, and an actuatc'r movable up and down by (i. In a typewriting machine, the combination of a carriage, a vertical shaft disconnectibly connected to said carriage, a horizontally arranged escapement wheel supported on said shaft, teeth mounted to move up and down on said escapement wheel, a co operating abutment, a key controlled lever,

and an actuator pivoted to said lever and movable up and downthereon for cooperation with said teeth.

7. In carriage feeding mechanism for typewriting machines-the combination of an escapement Wheel provided with a circularly arranged set ofheaded pins, movable transversely of the plane of rotation of said wheel, an abutment-cooperating with said =pins, and-a key controlled actuator for said pins.

8. In carriage feeding mechanism for typewriting machines, the combination of an escepement wheel'provided with a circularly arranged set of beaded plus, an actuator for moving said pins transversely of the lane of rotation of said Wheel, said pins being also adapted to rotate on their own s tes, and an abutment cooperative with said p ns.

9. ln carriage feeding 'mechanism for typewriting machines, the combinetionot an escapement wheel provided with a circularly arranged set of headed pins movable transverse'ly of the plane of rotation of said wheel, an abut-mentcooperating with said pins, end a key controlled actuator for said pins, said pins being also adapted to cam said actuator out of their paths of rotation.

.10. In carriage feeding mechanism for typewriting machines, the combination of an escapement wheel comprising a guiding portion and a supporting port-ion, pins longitudinally movable on said guiding portion and normally engaging said supporting portion, an abutment cotiperative with said pins, and a key controlled actuator for movin said pins longitudinally. 11. In carriage feeding mechanism for typewriti-ng machines, the combination of an escapement wheel comprising a guiding portion and a supporting port-ion, pins longitudinally movable on said guiding portion and normally engaging said supporting portion, an abutment coiiperative with said pins, a key controlled actuator for moving said pins longitudinally, and a. cam device for insuring the return engagementof said pins with saidsupporting portion after actuation by said actuator.

12. In carriage feeding mechanism for typewriting machines, the combination of an escapement wheel provided with Idle tively movable teeth, a coiiperative abutment, an actuator, a key controlled lever to j which said actuator is pivoted, n' flat spring on said lever engaging said actuator, and a stationary stop normally? coiipera-tive with said spring. I

13. in carria e feeding mechanism for typewrit-ing mac ines, the combination of a.

carriage, an escapement wheel provided with teeth movable independently of said wheel,

arresting means cooperative with said teeth,

niea'ns for controlling said teeth to permit step-by-step movements of the carriage, and a cam cooperative with said teeth during the return movements of said carriage to enable them to clear said arresting means.

1a In, carriage feeding mechanism for typewriting machines, the combination of an es'capement wheel provided with a circularly;

arranged set'of movable pins, an abutment to said abutment and operative successively and State of New York, this 13th ziiiy (if on said pins immediately prior 1'0 their c0- Wavember, A. D. 1912. operation with said, abutment to insure the engagement of said pins with said abut- 5 11181113. /Vitnesses:

Signed [it the borough of Manhattan, cit-y CHARLEB E. SMITH of New York, in the county of New York, I M. F. HANNWEEER JQHN H. EATER

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