US1214891A

US1214891A - Type-writing machine.

Info

Publication number: US1214891A
Application number: US80278513A
Authority: US
Inventors: Arthur J Briggs
Original assignee: Remington Typewriter Co
Current assignee: Remington Typewriter Co
Priority date: 1913-11-24
Filing date: 1913-11-24
Publication date: 1917-02-06
Anticipated expiration: 1934-02-06

Description

A. I. BHlGGS.

TYPE WHIUNG MACHINE.

APPLICATION FILED Nov. 24. 1913.

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A. s. anlass.

TYPE WRITNG MACHINE.

APPLICATION fILED NOV.24 i913.

mendl*eb.6,1917.

3 SHEETS-SHEET 2 {Nn/ENTER: um /BYW' m y u f3? HiEATTnR'NEY A L BHIGGS.

TYPE WRITING MACHINE. APPLscATmN man Nov.24. m3.

www12-BEES;

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ARTHU Il "5. BRIGGS, OF SYRACUSE. YORK. ASSIGNH T0 REMINGTON TYPEWRITEB, CCILI'NY, O15.:` ILION, NEW YORK., A. CORPORATIN 0F NEW YORK.

TYPE-WRITING- MACHINE.

pplcaon Cled November 24.1913,

lie. it known that; l'` Anrni'n J. Ramos. ciizwn oi me vVniicd States. and rcsidenf of -iyracnse, in (he. county of Onondaga and State of New York. have. invented certain new and useful `niproveniente; in Typeviting idaehines. of which the followingr is a specification.

)I v invention relates to typewriting Inachines and more p:ui( 1zla1x'ly to rihhon feed mechanism for sach machines.

The. main object oi' my invention. genernliy Stated. is to provide rihhon feed mechanism which is simple in construction. efiicient in use and which mai1 he mannifan'inrcd ai. small cost.A

To he alnwe and other 'ends which wiil hereinafter appear. nl v invention consists in ihe'ieainrcs of construction. arrangements of parte and combinations of devices-set forth in the ioliowing description and particniarly pointed ont in the appended claims.

ln the acccnnpanying drawings wherein like reference characters indicaie corresponding paris in the various views.

VFigure 1 is an enlarged. detailli` fragmew tari'.` rerticah fore and aft sectional View of one forni of 'ti-'pewriting machine embodying my inrention` n nficient nnmoer of parte` of the machine heilig shown toillnstrate my invention in its embodiment therein. Y

Fig. 2 is a delail. fraglmniarysectional view alien on the iine .r-.r oi Fig. 2i and looking in the direction of the-arrow ai said line.

Figa 3 is an enlarged. fragmentary, iop plan view of t he rihhon feed and reversing mechanism with paris omitted and paris broken' and sectioned away.

Fig. 4 is a fragmentary, front elevation of the rihhon 1"ibrator and some of the associated parts.

Fig. 51s an enlargedfdetail. fragmentary.

4sectional view of the rightdiand rihhon spool and some of the associated parts. the section being taken on'tlie line Iggy/'of F1g. 3. and.

lookmg in the direction of the arrow 'at said line.

' Fig. 6 is an enlarged, detail, fragmentary,

Specification of Letters Patent.

Iaented Feb. 6, 1917.

serial an. @02.755`

i'ronv elevation with parts in sectionfofnl portion of the ribbon feed meehanismg" have shown my invent-ion' embodied in the present' instance. in a writing machine of the character disclosed in my applications, Serial Nos. 782,859; 786,107; 786,108; 790,583; 791,734 and 795,667 and some of the features shown herein are claimed in certain of said previously filed applications. It should be understood.v however. that. my present invention may be embodied in other Styles of typewriting machines.

n the present construction se entally arranged type bars 1 are pivot at 2 to swing upwardly and rearwardly and to strike against the front face of a platen 3.

Each type bar is pvotedlto a hanger 4 se' of a printing hey. The universal barbcing engaged h v [he typebars in the manner described; is moved from the normal position shown in Fig. l rearwmjdly to effect an actuation of the escapement mechanism (not shown) and the rihhon mechanism, as will Uhereinafter more clearly a pear.

The platen '3 is carried Ihr a platen shaft. 11 which is received in hearing openin in end plaies lof the carriage. said end p nte-s extending upwardly from a traverse. har 13 mounted for movement from side to side of the machine. Thus the traijerse bar is provided with oppositely disposed race-'ways M which receive anti-friction halls 15 `and 16. The. halls 1G are alfo received in a race-way `17 formed in-a shift bar, rail orffralne 18. v.This har 1B has a plate 19 secured thereto -by screws 520il the plate being,"A grooved 'to forni a raceway 21 for the reception of antimy` app'llic ation,-

- rage co prxsing the traverse bar 13 and end plates 1 united by a tie rod 22 is supported to travel from side to side of the machine..

onthe shift rail 18. y ,L

The construction of the carriage and the manner of mounting the same is claimed in Serial No. 782,859, hereinbefore' referred to.

The'shift rail or bar 1S is mounted on and guided by parallel shift links 23 each pivoted at its forward end, as at 24, to the shift rail and pivoted at its rear end, as at Q5, to a'side plate of the machine. A second set of parallel links 26 is also connected to the shift rail. Thus each of these links is pivoted at its forward'e'ml, as at 27, to a depending arm'QS on the shift rail. 18, whereas the rear end portion of each iinl; is pivoted at 29 tothe frame of the n'sichine.l The links 26 are extended rearwardly beyond their pivots 29 toform arms 30 which are united by a cross bar or rod 3l. 'T he shift rail and the parts carried thereby are thus mounted for case shifting movement under the control of suitable case shifting mechanism, such for example, as that disclosed in my application, Serial No. 791,734, hereinbefore referred to and in which application the case shift mechanism is claimed.

The universal bar il has lixcdly connected therewith a centrally disposed rearwardly extending arm formed at the rear portion thereof as an enlarged plate 33. This plate constitutes an actuating member and has a rear contact edge 34.--35 which is operative on the escapemcnt mechanism, as disclosed in my application, Serial 795,667, filed Get. l?, 1913. The universal har and the member 32-33, rigidly connected therewith, are supported on theft'ranie of the machine for fore and aft movement. Thus parallel upright links or arms 36 are pivoted at their upper ends, as at 37, to ears'BS riveted at 39 to the universal bar. The lower ends of these links or arms are xedly connected to a rock shaft il) supported by ears 41 on a bracket plate lill, the latter be ing secured to the type bar segment by screws 4:3.' A rearwardly r :tending arm 4l on the bracket plate -12 is p. ovidcd with an upwardly projecting eur l5 to which a centrally disposed link 47 is pivoted at lll. The upper end of this lin actuating member 33. The universal bar is thus supported on theframe of themachineV for movement under control of the type bars at each printing operation.

(lne of the links or arms 36 is extended rearwardly beyond its pivotal center to form a crank arm 49 which is engaged by n suitable actuating devicel (not shown) under control of the space key as disclosed in my application, Serial No. 795,667. 2A depending bracket 50 has its foot-,piece k is piVGtEd :it 48 to thc- 51 secured-to the shift bar by screws 52.

This bracket is provided with ears 58 one of which is tapped to receive a bearing screw 54. A lock nut secures the' bearing screw in its adjusted position. This bearing screw constitutes a pivotal support with which coperates one end of a trunnionlike pivot' (Fig. 6) fixed to an actuating lever 56, the other end of said truunion-likc pivo being received in a bearing opening in theother ear 53 on the bracket 50. The actuating lever 56 is thus supported for case shifting movement with the shift railand theparts carried thereby. The lower end of the actuating lever 5G is provided with a laterally projecting pin 57 which extends through an upright curved slot 58 in a deL pending arm 59 on the actuating member An' operative connect-ion is thus effected between the member and the actuating lever 56 whereby a movement of the universal bar is'eti'ective to turn the actuating lever 56 on its pivot. The construction is also such as to afford a movement of the actuating lever 56 with the shift rail independently of the member 33' and its depending' arm 59, The upper end of the actuatmg, lever 5G is pivoted at 60 to a link 61. the latter being pivoted at. its forward end, as ut G2, to a depending arm of an angular lever G3. The rear end of the upper arm of this lever is received in a slot or cut-ont (il in the shift rail 18 and is pivoted to the shift rail at 65. A pin G6 is ixedlto the angular lever (i3 and projects from opposite sides thereof and forms a pivot to which a ribbon vibrator, designated as a wholel b v the reference numeral (37. is connected. This vibrator is hes! shown in Figs. 1 and -l from which it will be seen that it e.\'tcnds up' wardly in the rear of a type guide (i8 fixed' to the shift rail by screws .(39. Irlhe upper portion of the type guide is bifurcntvd to form two arms 'T0 on opposite sidcsof a central opening 7l. The upper rnd of cach arm is bent forwardly at 72 :1nd is provided with an inclined contact face 73 which cooperates with cach type block to guide it to the printing point. The ribbon vibrator has two arms 74 which are spaced apart at the opening 71 in the type guide und cach of these arms provided with oppositclv disposed fingers 75 which terminate bclore they reach contact with cach other to provide a central opening 7f3 between them. vcrticplly disposed slot 77 is provided between euch pair or' lingers 75 and the ussocia'ted arm 7l which carries them, thus forming :l guide slot through which tln` ribbon 78 muy extend. The ribbon vibrator is also provided with lugs which are bent around thc inner edges of thc arms 7) of :the type guide and coipcrato therewith to guide the vibrator as the latter is moved vcrtically to cause the ribbon to cover and unc mvr' the printingr point. A centiilly disposvtl tlvpviuliu; t ariii Si) ia t'oriiivd oii the vihi-ator :mit vxtviul tlowiiwardhY through :iii opviiiiig Hl iii thv t \'pv giiiilv. '.l`hv lowvr viul otl thil tlvpvniliiig arm is turiivil :it 92 around thv,ti'iiiiiiioivlihv pivot titi oii thu angularavtuatiiiglvvvr15:2.

It will hv iiiiilvrstooil that varh printingir 0pt-ration is vtl`vvtirv to avtimtv thv uiiivvijsal har whit-h. through thv iiiviiihvr l Iilt. Titi, (il aiiil til', is. vtl'vvtirvv to iiimvthv vil'irator upwartllv to lii'iiig thv rilihoii TH- iiitov tliv `viul ot Athv spring is. voiiiivvtvii to :r pin or ariii Hf whivli piojvvts i'var\\'a|'iil from thv ti'uiinioii-liltv pirot fit1 ot' thv .artuatiiig tprvr 5h. tt will hv uiiilvrstooil thvrvt'oiv that thv spring Hit not only rvturiis thv :it-tuutiiig lvrvr Sit; to iioi'iiial p'oitiou. hut -atsii hi'ator whit-li arv votiiivvtvil thvrvii'ith.

.ltvtvrriiig iiioi'v partivularl)l tai Figs. t, ."i aint t; it will liv svvii that :i ilvpviuliiig arm Ht isrl'oi'invit on thv l-hilit liar or l'raiiiv th. aiutthat :in :in ular avtuatingf lvrvr. tlvsigriiatvtl as a whotv hy 'thv rvt'vrviivv iiunivrzil HT', i5- pivotvit at Sb' on thv ilvpvutlingr arm. rlliv Substantially horiziiiitalli' ilispoSvit :iiiii Htl ot' thv angular `lvrvr is i'viluvvil :it its viii'l. :is :it .tt. wlivrv it is ivrvivvil iiiu :iii opviiiiig. til in a t'oiwrartlly projvvtirig viirvvil arm 5); t'oi'iiivtl mi thv avtuatiiiglr lv\vl :'it. toiiiivttioii is tlii| vtl'vttvill livtwvvn thv :irtuatutr lvi'v'r .'it :iiiil thv angular lv\'vi HT :intl vai-h artiisttioii ot' thi= lvi'vr 4'l`hv upright ariii DI, olf thv angular lvi'vrV alltv un hoth siilvs of thv xiiavhiiiv nur :irv

thv t'vvtlingl iiivziiis voiitrollvil liv vHaitl ariii=-A :ilikv in vvvr) pttl'tivular. t will thvrvt'oiv lirst ilvsvrihv thv vraiilt aiiiii it!) whit-.li ir; lov: tvtl :it thc right-haunt sitio ol' thv iii:i-

chine'zmd-the ribbon tvvd devics controlled by this :ii-m for turning thv i'ighbhaiiilvribhon spool 10U.

lThe i'ihhoii y pools IOUai-v arranged at mi.: sides thvrvot' at ttl! aiiil thv rraiik :trui is aperl tiirvil to vorrvspoiiil. sn as to llirx'vill'i' c011- iivvt thv vraiik :iiiii laiitl rovl: shaft to iiim'e to i'vthvr` thv riiiiilt :iiiii living hvhl on the hat't hy a svrvw ltllt 'l`hv shaft 101 is i'vvviivil iii :intl vxtvutl4 through a bvai'irig i lvv \'v. tu?) whit-h is rivvtvit :it its upper end, as iiiilivatvit at litt. to thv hottoiii iiiviiihvr '1()5 ot' a two-part lim'r/.oiitalb disposed housing or vasiiiLr whivli iiivlosvsavthating tlvvit'vsV toi' thv right-hand iilihon spool. 'thv lowvr iiiviiihvr 103 oi thv ,raising is ofviiptliltvfvotistriirtioii. thv other iiivnihvr 10G living! iii thv iiatiiiv ot' a rover whivh fitsA on thv lowvr part ot' thv rasiiigr. Thv uppvr viiil ol thv rot-li shaft ltlt has rirvtvtlthvvivtn a vraiilt ariii l.tt vviitainvil iii thv viising. 'I`hv t'rvv viiil (it thiI arui varrivs an' npwaitlly vxtviitliiig pin ttll which extends: through a slot 10S iii a lvvv' ariii'lO. Th(` ai'iii titl is.t'iitti'iiiiie l at miv vint ou a shuttlitvrvil pivot svi-vw `ttt rvrvii'vel :it its tower tlirvattvtl viitl iii ii tuppvtt opviiiiig! iii thvv iiivuihvr 10.3 nt thv mixing' :ib-.shown in Fig.

t. Thv torwarittv vxtvinliiig. trvv vint of thi.x

lvi'vi' 110 varrivs :i pivot 112 on whivh'an osvillatorj.' fvvit ilvvirv. or pawl l11S-tis iuoiiiitvtt. downwardly projecting pin ttt is rai-rim! h f thv pawl for voiinection with oiiv vuil ut' :i voiitiavtilv spring' 115. 'l`liv oppmitv vuil ot thisV spring: is vouiivctetl to a pin tlt'i which pi'ojvrts` upwaitlly fi'm From an iiispvvtioii of Fig. :"i it wilthe svvii that au upwai'iltv projvvtiiig supporting iipiiiillv ll? is iii'vtvtt at its lojwvr vint. iis :it 1.13, to thv hottiiiii ot" thv vasing `Qvvtioii 105. This lwpintllv. is proi'itlvil with a virviuiifvrviitial shoiililvr tlf against whivh the lowvr vuil ot :i :-'lvv\'v. hollow spiiiillv or l hiit't 120 ahiits.

'l`hi.\A slvvsv iS ailziptvtl to surround aiiil he uppnrtvil :iii thv spintllv 1t? aint to4 siiri'oiiuitvil lijf a tti-in tal voltar 121 whivh aluits :it itl iippvr vsnl against :i viicuiiiferviitiiit shouhtvr 12; oii thv slvvvv [120. The tlaugfvil portion otl this roiliii 121 vhvaLs against thv iippvr faire of a ratchet; .whvvl ljt tn t'oi-iii a li-ariiig tavv therefor. thu i lvviv t2!) vxtvnttiug through a vviitial operi ing in thv i'ii'tvhvt w'hvvl. .Tiie ititvlivtqrlitvl aint .Ji-vvv 120 ai'v ttxvilly voiuivctvtt by rit;- vtiir; tht` hui-vi' vint ot? thv sleeve against.

100, vso that the shaft 120 and the ribbon y spool are fixed to turn together.4 The npper end vof the hollow shaft 120 is threaded .at 126'for coperation with a thumb nut 127 knurled on the periphery thereoftand adapt- Aed to bear against the upper. flange of the associated ribbon spool, as` shown inQFfig. 5,

to bind the spool between the nut and the- `supporting collar 121. From jan inspection of this figure it willbe seen that the collar 121 extends through an opening in the upper section 106 of the two-part casing and is adapted to support the horizontally disposed ribbon spool above the cover of the casing and' adjacent to but free from contact therewith.v In this manner the ribbon spool' may be connected to turn with the hollow spindle 120 and the ratchet wheel123, such parts rotating around the spindle 117 While the two-part casing remains fixed. The ribbon spool. may be readily detached by removing' the thumb nut 127. When the spool yis removed the cover section 106 Ibe detached to expose the devices contained in the casing.

and the ratchet wheel 123 connected therewith, may b e lifted oli' the supporting/35pmdlell? to give access to the parts iir'the casiner which are located beneath the ratchet wheel.

It will4 be understood' that an endwise movement of the actuatingr bar 9G from left to right, .as the parts are shown in Fig. 3, is effective to turn the crank arm'lf) to the right, producing a corresponding movement of the crank arm 107 through the interposed rock shaft 101. This movement of the crank arm 107 is effective to move the lever 110 to the right, thereby causing a corresponding movement of the feed pawl 113i.' The pawl when in engagement with its associated ratchet wheel is effective, during this lmovement to the rightfto elt'cct a rotative movement of tbc ratchet wheel and the ribbon spool which is connected therewith.

The lower member 105 of the casing is secured by screws 128 to a bracket 129 fixed by screws 130 to the shift rail 18. lt will be understood therefore that the. two-part casinf,r and the parts supported thereby are carried by and shiftable with the shift rail or frame 18 during thc case shifting move` ments of the latter.

The' ribbon spool 100 at the opposite or left-hand side of the machine .is connected shaft 101 previously described. I'end of this rock shaft has fixedly connected 135 is mounted on this pivot and is If desired, the spindleilO' the machine'and the same reference numerals will be applied to the,.corresponding parts wherever applicable. and it will bcunnecessaryto specifically describe this portion of the ribbon feed mechanism for thc left-hand spool. However. the actuating,r arm 131 for the lefthand ribbon spool and the actuating devices controlled thereby are somewhatdifl'erent from thc actuatingr arm 09 and the actuating devices controlled b v g `thislast mentioned arm. Thus the arm l3t is fixedly connected to the lower cud ot'v a rock shaft 132 which corresponds to and is mounted '1n the same manner as the rock The upper forward end feed pawl adapted to cooperate with the associated ratchet wheel lt will be understood, however.

thereto a crank armlI-li on the of which 1s carried a pivot 12H.

that the

pawls

135 and 113 move in opposite directions from the normal position andtliat this movement ot' the pawls vis effected b v an endwise movement of the actuating har 96 in one direction, or from left to right. In other words, as the actuatnfipfir bar 96 moves to the right from the normal position shown in Fig. 3, the pa wl 113 will be moved to thc. right, whereas the paw] 135 will be moved to the lcfti This movement ot' thc pawls in opposite'directions is ell'ective to positively turn one.' or the-other ot,- the ribbon spools, dcpcndin;r on which of the ratchet wheels is engaged by its associated pawl, as will hercl inafter more clearly appear. 'lt should be4 understood that a movement of the actuating bar 96 to the right from the normal po sition, shown in Fig. 3. is positii'clyrl'eotcd by the vdcpression ,of a printing key, and while the associated typo bar is movin'g toward the printing position. lt will be understood therefore that whichever spool is thc driven spool. whether the right-hand or loft-hand spool, it will bc positively turned at each 'printing operation, and the feed movement of the ribbon in either instance is Ilot dependent on the returning spring 83 by yvhich the har and the parts connected therewith are returned'to normal position.

In order to prevent a backward movement of the actuated ratchet wheel and the spool connected therewith during the return movement of the )

awl

113 or 135 which coacts therewith, I ave provided a locking pawl associatedi.E with. each ratchet wheel. H'EEa'cli theseapawls is mounted 'onja4 pivot 1'c roJectsupwardly fromthe-as associate-d ratchet i wheel and 'into nt- 'with' A. the teeth thereon to. hold heel against backward turning ted feedf'pawl. rovided automatically operating g3 4orgreversing means for. mainbnggthelpawls of one ribbon spool out of ement-(with, the associated ratchet when the pawls ofthe other vribbon engagement therewith, as shown 2 -(2 inf.Eig., :f- -The constructionA is such that an 'i 'au matic operation of the reversing means will' take place when the ribbon is about exhaustedfrom one of the ribbon spools so as 4to throw the ribbon feed devices of the exhausted spool into operation and to simultaneonsly'render the feed devices for the other spoot-ineffective; ln Fig. 3 the parts are `shown as they are disposed when the ribbon ispabout exhausted from the left-hand rib- .0 bon spool and just before an actuation. of V'the reyersingdevices is ceeted. Acnrved 141 is contained within thc right-hand t the' upper endof a rock shaft 142 1,- ii's Shown in Fig. 2, is mounted to eelyfe 143 riveted at 14sL to the cas- 05. 'The lower ond ot this shaft ,fatfland a. corresponding openorxned" neend of an arm 146 pxtendsfrearwardly from the lowes` theshaitand beneath the associated hefrm fbeing held in place on its threaded screw 142. This arm is fi-:pix y onnectetl at itsrear end to one end 45 ofarqd'flyvhich extends tranversely across the machine and is contained in a. recess :f orm'ilin the shift har 1S. The arm 141 hasfa'Ii extension 14S which projects through w@aj1sl t o r opcning 149 in the housing' and npcarries an upwardly extending ribbon guide 150 which'forms part of the arm 141. This guide 150 is slotted at 151 for free passage therethrough of the ribbon as it passes from its associated ribbon spool across ci thgggnmchine to he opposite ribbon spool. arm 141 is also formed with dwells, contactedges ot" controlling members 152. 153, thefo'rmer of which is adapted to copcrate V44'f-'ivithjtlie retaining pawll and the latter 5 oi which is adapted to coperate with the lpawl 113. W'hon the parts are disposed ,is presentedn Fig. 3 the contact portions orf 152, 153 will he positioned so that 4,t} )l ej` r life4 out of coperative relation with the 35 PWls 113 and 136, so that the pawls may be forced v and maintained; in en agement inbei' 4105. A 'contractile' and v153 t-hereonfare" b rughtfinto. engagelp ositoiA end tof'a pin 140' on the' Eiilchfpawl 136 is therefore]forcedV en '-duringl the return movement of nF and one end of this armis fixediy se `with the'asscciated ratchetVA whee by the springs which are, connected tiosaid parvis. fhcn. however, thc firm;lfllfisshifted to the operative position-fthe contact portions 152 nient with their respective pan-ls, forcing and maintaining the latter out of engagement with the ratchet n'heell withu'hlch thev coact as indicated at the left-hand side The opposite end ofthe rod 147 is connected to an arm 154: which correspondsto the arm 146. This arnrli is fixedly connected to a rock shaft 155 mounted in the same manner'as the rock shaft 142, prerionsly described. This shat'l is also' connected with an arm 156'which corres onds to the arm 141. Contacts or dwells 15 158 are formed on an extension of the arm 15 to co-act with the pawls 135 and v136, re spectively, of the left-hand ribbon spool ratchet wheel. This arm 156 is also provided with an extension 159 which extends through a slot 160 in the easing and carries a slotted guide 161 through which the ribbon 78 passes.

The ribbon near each end thereof is provided with a contact device, each designated as a whole by the reference numeral 162. Each contact device preferably consists of a rivet 163 which passes through the central openings in two registering washers 164: and through an opening in the ribbon. The washers arc arranged ou opposite sides of n the ribbon and are' xed to the ribbon by the rivet. llaclf ot' `these contact devices is of such a size that it cannot pass through the opening in 'its associated ribbon guide, as indicated in Fig. lt will be understood from :in inspection of this Figure that the ribbon is about exhausted from the left-hand spool. As the ribbon continues to be Wound on the ri, xt--hand spool the contact device 162- near the'lett-hand end of the ribbon engages the ribbon guide itil and the p nll of the ribbon tu vos the arm 1513 on the pivotal center of the rock s aft This is effective to move the contacts 157 and 158m the right mulncarcr tlnl pivotal axis of the associated ratchet whccl soihat tln'zynolonger coact with their respective pau'ls 1235 and 1F36. and these pawls are thus enabled to engage. tbc associatcd ratchet wheel. A movement of thc actuating bar JG to the right` at this time, is cfl'ectivc to turn the left-hand ratchet wheel and the ribbon spool connected there` with. The shifting movement lof the arm 156 just described Y.is effective. through the arms 154y and 146and the interposed con necting'link or rod lll?- to shift the arm 141 of the opposite spool from t e position shown in Fig. 3 t-o a position corresponding to that of the arm 156 shown in that figure.

The effect therefore is to bring the contact U5 vfaces 152 and 153 into engagement with the

pawis

136 and 113, respectively', of the right- -hand spool to move said-paivls to and mainnear the right-hand end ofthe ribbon will engage theribbon guide 150and shift'it to the position 'shown in Fig. 3i This again renders vthe righthand actuating pawl -113 and the companion holding pawl 13G effective tocoperate with the associated ratchet wheel, and the ribbon will be wound on the ri lit-handinstead of on the left-hand spool.' Tiiis same shifting movement of the arm 141 is effective through the. intermediate connections to disengage the pawls 135 and 13G for the left-hand spool from the associated ratchet wheel.

From the foregoing description it will be undersfpod that a depression of the printing key is effective to move the associated type bar to the printing position. and that d-uring this movement the type har will engage the universal bar 9 and move it rearwardly. The e'ect of this movement of the universal bar is to move the upper end of the actuat ing lever S6-forwardly in order to operate the vibrator and interpose the ribbon in the path of the approaching type bar. A for- Ward movement of the arm 92 on the lever 5G is also effected at this time and said movementis operative to depress the arm S9 of the angular lever 87. thereb)I moving the upright arm 93 of saidangular lever to the right and transmitting an endwise movement of the'bar 96 to the right from the position shown in Fig. 3. This movement of the actuating bar 9G is eiectedduring the depression of the key and a positive move?v ment oi" the active ribbon spool will be ei'ectcd. During the return movement of the parts under the action of the -returning spring 83 the bar 96 will move from right to left, and at this time the actuating pawl of the active ribbon spool will glide over the teeth of its associated ratchet wheel irrespective of which spool is being driven.

'ln order to insure a. complete and quick movement of the reversing devices at each actuation thereof, and in order to prevent an accidental displacement of said devices from the position to which theyy are shifted, I have provided a spring detent 165 which is formed with a foot-piece 166 fixed to the lower section of the left-hand casing b v a Screw 16"?. The foot-piece is also provided with4 a downwardlyfcxtending projection 16S which extends through an opening 169 in `the bottom of the easing, thus preventing the foot-piece from turning on the screw 167. The spring is formed near the free* end thereof with a detent orengaging portion 170 having oppositely inclined facesv which are adapted to engage an anti-friction roller 171 carried by a pivot 172 which projects downwardly from the arm 156. AThe inclined face of the detent which is engaged by the roller depends on the position to which the arm 156 is shifted, the pressure of the detent being exerted against one side or the other of the roller as the rolle'rpasses to one side or the other of the apex formed at the junction between the two inclined faces of the detent. It should be understood, of course1 that the detent is operative.

to insure a completion of the movement of the reversing devices for both spools through' the intermediate connections formed between said reversing devices.

From the foregoing description it Will be understood that the ribbon feed devices, rever-sing devices. the ribbon spools, the twopart casings. the actuating bar 943, the ribbon vibrator and actuating lever 623. link 61, lever 5G and angular lever 87 are all carried bv the shift rail and are shiftahle with the platen in the case shifting movements of the latter. so that operative relation may be maintained between these various devices irrespective of the positionto which the platen may be shifted.

It will also be understood that the ribbon feed and ribbon reversing mechanisms are simple in construction, effective in use and may be manufactured at small co'st, most of the parts beingr stamped up or made from sheet metal. l\'l.oreover, it will he understood that the construction is such that the partsmay be readily assembled and that access may he readily gained thereto without dismantling other parts of the machine. Fur thermore. the ribbon feed and reversing mechanisms may be assembled outside of and introduced as a unit into the machine.

lVhile l have shown and described with considerable particularit)r one form of construct-ion embodying my invention. it should be understood that various' changes may be made without departing from the spirit and scope of my invention and that certain features thereof may be employed without others.

lihat- I claim asnew and desire to secure by Letters Patent, is

1. In a. typewritingr machine. the combination of a covered casing, a ribbon spool outside of but adjacent to said easing, anactuatmg pawl contained within said casing` a i'atchetv'lieel contained within said casing and with which said pawl co-acts,

means for detachablv connecting the ribbon spool to said ratchet wheel.- a reversing device in said casing and operative to control the engagement between said pawl and lnziiieansforfzdetachably connecting the ribbon ,Spoolto said ratchet wheehl a reversing device Iiifsaid casing and operative to control .-pthe fengagement between sad pawl and 4'wwratehet.wheel.-said reversing device being 1.5, provided with a ribbon guide, a ribbon, and

ia contact device carried b i' said ribbon and operative vonthe'ribbon guide to shift the -lreversiig device.

3.1 Infa .typewritmg machme,-the combi- :zing arranged at opposite sides of the ina- `[chine and shiftable with the platen and each iavinga `detachable cover. a' movablev arm rcontaiiied in each of said casings, a piiwl c 25 'carried b v each of said arms. a ratchet wheel contain'edin each casingand with which heA .associated pawl co-acts, a ribbon spool rra-aged outsideof each casing and adja- Qcentggto the cover thereof. 4and means for en coniinunicating movement from each ot' said ietwvheels-to the associated ribbon' spool. n` aitypewriting machine, the combir" nationpf a shiftable platen, a pairvof casangeli arranged at opposite sides of the yma- Snlfiine and shiftable with 'the platen and/each y., ha detachable cover, a movable arm iinediny each of lsaid casings, a pawl he associated pawl comets, a ribbon spool. arranged outside of each casing and -adjaentfgto the -cover thereof; means for coinniunicating movement from eachy of said dia reversing device in eachy casina1r and pei-ative with the pawl therein to control s `engagement w'i'i the associated ratchet j'pewi iting 'mac/bine. lthe coinl'iinaofrihbonspoolsiand ribbon feed mechanism comprising a bar which is actuated at ictnating-,devices which are moved in oppo- 'ite directions by a movement oi' the bar in inatin of a shiftable platen. a pairV of cas carried b v each of said arms, a ratchet wheel y contained in each casing and with which telit-t; wheels to the associated ribbon sponh itchehivhcels' to the associated ribbon spool,4

vsaid actuating-devices inoperativeto turn theother spool.

7. In a typewriting machine, the combination of ribbon spools; and ribbon 'feed mechanisni comprising a bar which is'actuated at each printing opeiatioma ratchetwlieel for each ribbon spool. a pawl for each ratchet wheel, and actuating means controlledbv a movement of 'said bar in one direction for .mov-ing said pawls in opposite directions.

8f In a typewriting machine. the combination of ribbon spools; lribbon feed mechanism comprising a bar which is actuated at each printing operation, a ratchet wheel for each ribbon spool, a paw] for cach ratchet wheel, and actuating means controlled b v a each printiingY operation. a ratchet wheel for' each ribbon spool. a pawl for cach ratchet wheel. and actuating ine'ans controlled bv a movement of'said bar in one direction for moving said pawl's in opposite dircctionsi reversing means for rendering one ot' said paw-'ls inoperative on its ratchct wliccl when the other of said pawls is rendered operativo on its; ratchet whccl: and automatically operating moans controlled b v thc pull ol' the ribbon for shiftingl said reversing means when the ribbon is about cxhauslcd Vl'roni 'litlili' ribbon spool,

1i). in a f Vbewi-ilinjl zuachiiw. thc combi! nation ot' a carriain. a bai' by which said carriage is wholl)v supporti-d. brackets sccnrcd to' said bar, casingfs sccurcd. to lsaid brackets. ribbon l'ccd and reversing dcviccs containcd ,within said casinos. paris ol' .said ribbon Vfccd dcvic'cs extending outside iho casinjls. ribbon spools cai'ricd bvlli'ccasings and tnrncd bv said ribbon l'ccdV dcviccs, a longiiinlinall)1 inovablc actuating bar which cxtcnds trausvcrscly of llic machine and is \\'holl}Y .snpportcd b v lsaid paris o l` the ribbon t'ccd dcviccs which extend outside the cas-ings. and incans for cll'cctiin: a longitudinal :novena-.nt oi' said ba r at cach printing operation.

il. ln a typawritinir inacliiuc. ilic combination of a carriage. a bal' b v wliich'said carriageis wholly supported. brackets aocnrcd to said bar. casiuirs lsecured to said brackcts. ribbon iccd lc-ricoscontaincd within and supported b v said casiugs and having :irma that extend outside thereof. ribbon. i'cvoisins! dcviccs contained within and supported by Isaid casillas and having arms' that extend outside thcrcol'. ribbon spools carliicd by said casings and turned by said ribdinal iiioveinentfot said actuating bar at `versing device contained witliinthe asso- Veach printing operation. ciated easing, a rock shaft :extending 1.2. lna typewriting machine. the combithrough the casing and having sai reversnation ot' a carriage. a bar b v which said ing device connected at the inner e lthei'e 4 1o carriageis wholly supported. brackets seof` a bearing sleevc'ixed to the casing andflt' cured to Isaid bai'. eiisiii'gs secured to said throiigliywhieh said rock sliaft'e'vteiids. and brackets. ribbon feed and reversing devices an arm outside of the casingr and connected .contained within said casiiigs. parts of said to thc outer end of said rock shaft.` ribbon feed devices extending outside the- 16. In a typewritiiig machine, t-lie,eomb.

veasings.- iibhon spools carried b vthe l.isiugs nation of a carriage: a supportingbar for 80 and turned by saidribbon feed devices, said carriage; casiiigs Secured to ISaid bart" means controlled b v the pull'of the ribbon ribbon spools supported b v said casingsj. for actuatilig said reversing devices.' a loir ribbon feed devices carried by said ca isingS-: giti'idinally movable actuating bar which and operative to .turn said spools; andi extends` transversely of the machine and is vribbon reversing mechanism carriedbysaid 85' wholly supported by said parts ot' the ribcasiiigs and comprising for. cach spool ai rebon feed ilevices whiehexteinl outside the versing device. contained within the assocasings. and means for ell'ecting a loiigitiiciated casing. a rockshaft extending dinal movement ot' said liar at .each printthrough thel casing and having said revgers- Y in;r operation. ing device connectedat the inner end there- 90 v13. In a typewriting machine, the combiof, a bearing sleeve'ifxed to the casingand nation of a carriage,`a bar by which said through which said rock shaft extends. an carriage is wholly supported, brackets searm outside of the easing, and connected to cured to said bar, casings secured to said tlieoiiter end of said rock shaft, a. rod which brackets, ribbon feed devices contained withconnects said'rlastnientioned arm with the 95 iii a'iid supported by said casings and liavcorresponding arm for the other ribbon ing arms that extend outside thereof, ribspool` and means controlled bythe pullof bon reversing devices contained within and the ribbon for actuating said reversing desiipported by said casings and having arms vices.

that extend outside thereof. ribbon spools 17. In a typewriting machine, the-combi- '-100 carried by said easings and turned by said nation of two ribbon spools, a ratchet. 'wheel ribbon feed devices, a rod which connects for each spool, al driving pawl for each said arms. of thereversing devices, means ratehet'wheel, a crank arm carrying one'of controlled by the pull of the ribbon for acsaid pawls, a lever fulcrumed at one end 40 tuatiiig said reversing devices, alongitudiand carrying at the other end thereof the 195 nally movable actuating rod or bar which other of said piiwls, a crank' arm connected connects said arms of the feed devices, and to said .lever intermediate the ends' thereof,v means for eti'ecting a longitudinal moveand an actuating device operatively con-- nient of said actuating barlat each printing neeted to said crank arms, whereby` a moveoperation. i Y ment of said actuating device in one direc- .ngo 14. In a typewriting machine. th'e combitin will cause said pawls to be simiiltane-A nation of a carriage; a sui'iporting bar for ously moved in opposite directions, said carriage; easings secured tol saidy bar; 18. Ina. typewriting machine, t, combiribbon spools supported ily said casings; nation of two ribbonspools, a ratchet wheel' and ribbon feed devices canried by said casfor each spool, a driving paivlor each nl' ings and -operative to turnA said ribbon ratchet wheel, a crank arhicarrying one of spools, said ribbon feed devices 'for each said pawls, a lever fiileramcd at one end and spool comprising an 'arm contained within carrying at the other end thereof the otherA the 'associated casing, a rock shaft which ex; of said paivls. a .crank arm connected to said tends through the associated casing from lever intermediate 'thcends thereof. an actu 12 the inside to the outside thereof andA carries ating bar which moves longitudinally and said arm at the inner end thereof, a bearing is operatively connected to said crank armssleeve fixed to the easing and through which to move them and the parts controlled there'- said-shaft extends, and an actuating arin by. whereby a movement of said bar longi 6 fixed to the outer end of'said rock-shaft, tiidinally in one direction will-cause asimull2-5 and meansIfor operating said actuating arm taneous movement of thefpawls in opposite at each p'rintingioperatior.. directions, and means operative atv each 15. In a typewriting machine, the combiprinting operation tol shift said actuating nation of a carriage; a 'porting bar for ar longitudinally. i 35 said carriage; casmgs seiipredto said bar; 19. In a. typewriting machine, the comf. 13

bon feed devices'. 'a rod which connects said connects and ai-toutes said arms of the feed de\iccs.and iiieai'is i'or eliectiiig a longituribbon spools supported by sa'id' casings;

ribbon feed devices carried bysaid easings and operative to turn said spools: and ribbon reversing mechanism carriedi by-sald casings and comprising for ea'cli spoola re- 73 A bination of two ribbon spools, a ratchet' wheel for each spool, a driving pa-wl for each ratchet wheel, a crank arm carrying one of said pawls, a lever fulcrmned at one end and carrying,r at the other end thereof the other of said pawls, a crank arm connected to said lever intermediate the ends thereof` an actuating device operatively connectcd to said crank arms. whereby a movement of said actuatinpr device in one direction will cause said pawls to be simultaneonsly moved in opposite directions, a reversiliaT device associated with each of said pawls and adapted to maintain its pawl out ot' cor'iperation with the associated ratchet wheel, and automatically actuating means for controlling said reversing devices.

20. In a tvpewriting machine, the combination ot' two ribbon spools,.a ratchet wheel for each spool, a driving pawl for each ratchet wheel, a crank arm carrying'one of said pawls, a lever fnlcrmned at one endand ca crying at the other end thereof the other of said pawls, a crank arm'fconnected to said lever intermediate the ends thereof, an actuatingl device operatively connected to said crank arms, whereby a movement of said actuating device, in one direction will canse said pawls to be simultaneously moved in opposite directions, a reversing device associated with cach of said pawls and adapted to maintain its pawl out of coperation with the associated ratchet wheel` and a ribbon guide associated with each ribbon spool and connected with the associated 1 vel-sing device and operative to shift the, same when a contact on the ribbon engages the associated ribbon guide.

Q1. ln a typcwriting machine, the combination ol two ribbon spools, a ratchet wheel for each spool, a driving paw] for each ratchet wheel, a crank arm carrying one of said pawls, av lever fnlcrumed at one end and carrying at the other end thereof the other of said pawls, a crank arm connected to said lever intermediate the ends thereof, an aotuating device operatively connected to said crank arms, whereby a movement of Said actuating device in one direction .will cause said pawls to be simultaneously moved in opposite directions` a reversing device associated with each of said pawls and adapted to maintain its pawl out of coperation with the associated ratchet wheel, a ribbon guide associated with each `ribbon spool and connected with the associated reversing device and operative to shift the same when a contact on the ribbon engages the associated ribbon guide, and intermediate connections between said reversing devices by which a niovement of one reversing device to disengage its pawl will canse a movement of the other reversing device to enable the other pawl to engage its ratchet wheel.

of) In a tvpewriting machine, the combi- .nation of a platen-supporting shift-mii, ribbon feed mechanism supported by the shiftrail, ribbon guides through which the ribbon passes, contact devices carried by the ribbon near each end thereof, each contact device co-acting with its associated ribbon guide to shift it, levers to which Said guides are connected, and a connecting `link extending from one lever to the other, said levers having arms which extend back of the front face of the shift-rail and said link being attached to said arms at their rear ends, and the shift ail having in it a longitudinal recess through which the connecting link passes.

Signed at Syracuse, in theeounty of Onondaga and yState of New York, this 19th day of November, A. D. 1.913.

ARTHUR. J. smoes.

Witnesses E. S. BoYNToN, iV. iV. BRAND.

It is hereby ccrticd that in Letters Patent No. 1,214,891, granted February 6, 1917, upon the application of Arthur J; Briggs, of Syracuse, New York, for an improvement in Type-Wrting-Machines, un error appears in the printed specification requiring correction ne follows: Page 7, claim 5, strike out line 52 and insert the words each printing operation, and ribbon spool; and that the said Letters Patent should bc read with this correction therein that the same muy conform to the record of the onse in the Patent Ofcc.

Signed and sealed this 23d day of April, A. D., 1918.

[sun] F. W. H. CLAY,

Acting Commissioni* qf Patenti. Cl. 197-151.