US1189627A - Ribbon mechanism for type-writers. - Google Patents

Description

G. F. ROSE. meow MECHANISM F'OR TYPE WRITERS.

APPLICATION FILED NO V- 7.1912.

1,19 6 I v PHtGI ItQd July 4, 1916.

3 SHEETS-SHEET 1.

WITNESSES:

a. F; ROSE; v v R'IfBBQN MECHANISM FORIYPE'WRI'TERS APPLICATION FILED NOV- 7, 191121 I Patented July 4, 1916.

3 SHEETS-SHEET 2.

' v INVENTOR 6601 e FBOSQ.

A v: B

- g m-tyyw 7%6/ e. .n0sE. RIBBON MECHANISM FOR TYPE WRITERS.

\ I APPLICATWN FILED NOV- 7 1912. 1,1 89,627. Patentdluly 4, 191

3SHEETS- m MENTOR writing machines.

UNITE STATES PATENT om on.

enonen E. Ross, on ne Yoitx, m

RIBBON M C ANISM FOR TYPE-WRITERS.

Specification ofLettrs Patent.

"Patented July 4, 1916.

Application filed November 7, 1912. Serial No. 729,931.

To all -whom may concern: I

Be it. known that I, G ORGE F. Ross, a

c itizenof the United States, residing at the city 'of New York, borough of Manhattan,

countyand State of New York, haveinvented a- .certain new and useful Ribbon Mechanism for Type-\Vriters, of which the following is a specification.

This-invention is a ribbon mechanism for typewriters, and it pertains, more particularly, to means for shifting a vmulti-color ribbon adapted for use on front strike machines. i} e. that kindknown as visible The object is to provide a simple 'efiic ient construction by which a multi lor. 'l'llJbOI]. is normally positioned to exe the writing line on the platen carriage,

ns'controll'able' by a manual operation to bring one or the other of the two-color sections on the 'ribbon into writing position,- and is automatically moved into' the path a "of the type upon the depressionof any one of the key levers so as to secure a printed "impression of the selectedqcolor- \Vith the foregoing and other objects in view, the invention embodies a ribbon vibrator slidably fitted on a guide member for the type bars, said vibrator having means a for connecting thereto a multi-color ribbon in such way that the ribbon is free to slide through the vibrator and is caused to move with said vibrator when the latter is shifted relative to the guide member,sa1d vlbrator and the ribbon thereinbeing normally in a position. to expose the writing line. lVith said vibrator cooperates a system of levers and a device for effecting a variable move- ,ment of the vibrator whereby the levers operate in unison with the universal bar and the 'escapement for automatically moving the ribbon into and' out of the path of the type bars upon depressing anyone of the key levers, whereasthe variable movement device is'controllable at will for shifting. the ribbon within the vibrator for the pur- 5 pose of positioning the selected color section of said ribbon in. the path of said type bars, v

In a practical embodiment of the invention-the lever system includes three levers, one of which is connected to the vibrator for directly imparting movement thereto. a second lever is provided with a cam which contacts normally with a cam on the first lever, and a t-hird lever cooperates with the v second lever and with an escapement lever, the arrangement being such that the operation of the'escape nent to control-the platen carriageactnates 'thelever system to im-- part movement tothe ribbon vibrator.

The-lever system described is useful, more particularly, in connection with a shiftable guidemember of the character disclosed in a prior application Serial No.'65'6,170, filed October :23, 1911, wherein the guide member and the vibrator are shiftable out of operative posit-ions relative to- .the platen carriage, the latter being removable from the typewriter in order that the whole ma-" chine may be so com'pactlyarranged as to facilitate transportation. Said lever system performs the function, mainly, of permitting the guide member andthe vibrator to be turneddownwardly and upwardly with-- out -disarranging the levers, i. e. disconnecting any part ofthe actuating mechanism for said vibrator to secure said folding movement. The means for effecting the variable movementis a collar positioned on the esca'pement lever for sliding movement there-' on, said collar cooperating with the third lever so as to be movable toward or from the fulcrum thereof and operating, when the escapement lever is actuated, .to impart movement to said third lever, the extent or degree of such movement depending upon the distance of the collar from the lever fulcrum. To the collar is connected 9. rod lead ng to a shift lever positioned in con-.

through a part of a typewriter illustrating the new ribbon vibrator in'operativepositio-n relative to a platen carriage. Fig. 2 is a vertical section on the line Q2 of Fig. 1, through certain parts of a typewriter. some of the parts composing the vibrator mechanism being shown in elevation. Fig. 3 is a-front elevation. partly' in vertical transverse sectiomand similar-1 to Fig. l, illustrating the vibrator, moved into an out of service position out of the path of the platen carriage or any part thereof. Fig. 4t is a cross section, in the plane of the dotted line 4--'l of Fig. 3, illustrating more particularly the out of service relation of the vibrator to the platen carriage. -Fig. 5 is a fragmentary plan view illi'ist'ating a part of the frame and the shift lever by which the multi-color ribbon may be moved to either (if two positions in order to bring its respective color sectionsinto the path of the.

type bars. Figs. 6 and 7 are vertical sectional views illustrating the two positions of the bar which carries the ribbon vibrator.

12 are views in front elevation showing the two operative positions of the ribbon vibrator for the purposeFof position-ingthe ribbon so that the type bars will operate through the respective color sections of said ribbon. 1

A designates'a portionof a typewriter frame, B a pivoted type bar adapted in its normal positionto-rest upon the cushion b,

C a key lever, Da universal lever supported 7 by a cross rod d and provided with a universal bar d, E aliorizontal plate or other member forming'a support for a platen carriage F, and G a platen mounted in said carriage. The platencarriage is provided with a rack f with which meshes a gear .7" on a vertical shaft F which carries an oscillating escapement wheel F said parts con stituting an escapement mechanismwhereby step-by-step movement is imparted to the carriage. able hand wheels 9 'for its convenient nianipulation, and; to this carriage isattached a bar [2, having paper clips or guides H.

The foregoing parts are .usual in a certain kind offront strike typewriter, and no novelty is claimed herein for such parts, for

the reason 'that some or all of the parts constitute the subject matter of other applications for patents heretofore filed by me, more particularly the escapemeiit mechanism. 1t may be added-that said escapeinent inechanisinin addition to the vibratory and. rotatable escapeinent wheel F T embodies the fiirther element of an escapenient lever F shown in Figs. 1, 8, 11 and 12 as a bell-.

"crank, the latter being pivoted by a pin or screw f to a bracket 7. One arm of this escapeinnt lever extends below the escape inent wheel so as to lift the same relative to a square portion ofthe escapeinent shaft Platen G is shown as havingsuit- F, but the other arm of said escapement lever extends downwardly from the pivot P so that the rod f? may be connected to said ing in cooperative relationto universal lever 1). see Figs. 1 and 3, whereby the operation of the universal bar imparts movement to the escapenient.

Across theupper front part of the maehine and'in front of the platen carriage is positioned a horizontal carrying bar I, the

' same being substantially square in cross section, as shown inore particularly in Figs.

This carrying baris pivot-ally 6 and 7. supported ins de members of frame A by suitable screws whereby the bar may be,

rocked or turned on its longitudinal axis,

butthe bar is held or retained in eitherof the positions to which it may be adjusted by hand by means illustrated in Figs. 6 and The bar. is provided with a plate 5' which is' attached to one face of the bar. by screws 7?,

the width of the plate exceeding the thickness of the bar] In the path of this plate is a yieldableretaining member I. shown as a spring plate having av curved edge 1?, said platebeing secured firmly to a member of frame A by a screw-2' The retaining ,plate is normally in frictional contact with plate j on the rocking bar. such frictional contact between plate i and the curved edge 1? ofthe retaining plate being sufficient to hold the supporting bar 1 in either the 'operat-ive position shown in F ig. 6, or in the adiusted position illust'ated in Fig. 7.

The supporting bar carries ribbon guides J.J; a type bar guide K anda ribbon vibrator .L. The ribbon guides are positioned near the-respective ends of the supporting bar, each guide consisting of a metal plate which is secured firmly to the bar and's'aid plate. having an inclined slot through which the ribbon is adapted to pass on its way from the ribbon spools (not shown) to the vibrator. The guide K for the heads of the type bar is shown in the form of a plate, one end portion of which is bent part way around supporting bar I, the bentpart lro'f said plate being fastened by screws It to the rear of supporting bar I. as shown more clearly in F igs.'2, 4: and 10. In the normal position of supporting bar Lthe' guide plate K evtends upwardly froinsaid bar so as to occupy a cooperative relation to platen (l. Said plate K is provided at its upper portion with a longitudinal slot K" through which is adapted to pass the head of the type bar Blwhen akey lever C- is depressed.

In addition to the slot is in its upper part,

the guide plate K is-provided with another longitudinal slot is for a purpose which will presently appear, the upper wall of'which acts as a stopi'n limiting the upward move ment of ribbon vibrator L. ,Sald ribbon vi- P bra-tor L is a plate having the tapering form ,shownmoreparticularly in Figs; 1, 10, -11, and ,12,esa1d plate beingpositioned close to the rear side of the type bar guide K. .The upper 'part of plate L formingtheribbon produce tongues Z-' so that the ribbon will be positioned between the arms and the tongues thereof for the purpose of loosely 0 *connecting the ribbonwith the vibrator.

The ribbonis free to slide through the vi'- brator under the automatic action of the machine, but the ribbon may be displaced-or adjusted byhand-into andout of engagement with the tongue-formed bifurcated part of the'vibrator. The vibrator is supported or carried by guide K to which said a vibrator is slidably connected. As shown,

25. the vibrator is providedwith-clips m. below the forked upper part thereof, which clips are snugly fitted" to the respective side edge portions of guide K, The lower part of the nore clearly 'in Figs. Sand 9. Levers P-Q vibrator is also connected slidably to guide K- by a pin m which passes through the slot is of guideK, said pin m operatingto loosely connect said vibrator with one of the series of levers. It will be understood that the pin-m slidably connects the ..vibrator L to guide K and pivotally attaches, a lever O to said vibrator.

- "It maybe stated that pin m is riveted to plateL and slides freely in vertical slot Jwof guide K, one end'of the rivet being headed to preclude vibrator L from get ting out of position.- The vibrator can be detached from guide K by sliding therivet upwardly until the headed end of said rivet can be drawn through the enlarged upper end of slot 13*, see Figs. land 11. a

, Lever 0 forms oneof-theseries of three levers indicated at'O P Q; Lei'er O is 'fulcrumed'at one end on supportnig bar I by apin or screw 0, and this pivoted end of the lever is provided with a cam 0, sald lever 0 being normally depressed by a spring O which is attached to supporting bar I r and acts upon the top' edgeof' the lever O to depress the lever and retain vibrator-L normally in a lowered position with respect to guideK. whereby the writing line on the paper fitted ,around the platen G will be exposed to viewaboi'e'the top edge of guide K and between the arms Z at the upper forked or bifurcated part of vibrator- L,"

. see Figs. 11 and 12.

j lhe second lever P of the series of levers is provided at one end with a shortupstanding arm 1). the latter being pivoted by a pin or screw pf to a stationary bracket 1? ffixed,

to a. stationary part of frame ,Said lever is provided Jmtermediate its ends with a) cam. P, the latter extending forwardly. from the'lever and positioned belov'v-thev earnfo ofvibrator lever 0, y'm m e t' of-le'v'e'r P will cause cam P act-upon cam oof lever O for thejpu osejoflifts,

ing said lever Opand vibrator? lever alongside the'bar I atthe' rearthereof, and 3 at its 'free end lever P is bent downwardly;

at g and provided witha clip- 9', whereby.

lever P is in cobperative relation to lever Q. e

Said lever Q is-in the rearoflever P solas to extend parallel thereto for a suitable distance. At one end lever vQ is bent rear-. wardly at 7', and this bent end is pivoted b a pin or screw 1" to aplate 1- attached tom the carriageplate, whereby the leverfQis fulcrumed. v Levers P Q'a're operatively con nected by" the clip'. q of lever P-fittingover the free end portion'of lever Q, as shownjl are pivoted independently offieachothiar, lever P being fulcru'med. to the frame. and

lever 'Q' to the carriage plate, the latter being movable vertically in order to shift the carriage, into position to receive impres sions from the upper casetype on the type bars; The arrangement allows for equal movement-ofvibrator L- in either theraised ,or normally lowered position of the carriage plate; for the reason that lever Q shifts with the platen whereasilever P is not movable with said platen. Thus, when theplaten is,

raised, levei' Qi goes up' with it and, raises; end of lever P by cli p' g-fend. said lever P 5}.

P "to raise vibratorf 1 --as to be always in the samejpositiongpbut acts through cams -0 Lever P and bar I are .iast:- to frame A $0 lever Q allowsthe platen to be shifted'witl-i out disengaging the ribbon vibrator mecha nism.' Lever P is operatively related,

lever O by the cani P contactin'g g vith th cam 0 of the other lever, tlius pfermltting a certain independence of action hetweenthe levers when the bar I is 1'ocked"oI,-'turned on .1.;

its longitudinal "axis, for thepurpos'e, first of moving the ribbon guides, thetype'bgt guide, and the ribbon vibrator to the' o' of service positlon relative to the-carriage shown in Figspl and 4, and "second";for retaining the parts 1n operative relation to each other when the bar I occupies .erative posltion'so that the ribbon guides typehar guide'and the ribbon vihrator willt direct the ribbon into the path 'Qfifthe he ls on the type bars when operatirfg the such relation to the platenasto prop-' .the embodiment of this to the lever systenr for actuating the vi- In art of the invention shown by the draw ngs, collar R is supported on escapement lever F said collar being provided with a forwardly extending lug B. By mounting the collar on the escapement lever, said collar is movable with brator in unison with the escapement.

'the escapement lever,and the lug R" of the collar extends forwardly from the collar and below lever Q, said lever resting upon the collar, whereby the upward movement of escapement lever F lifts the collar and lever Q, which movement of said lever Q is imparted to leyer P by the clip of lever O engaging with the free end of leverQ, and as aresult of thismovement of levers P Q the cam P acts on cam 0 of lever O for the purpose of .lifting the vibrator L into an operative position.

It will lie-noted that the collar R constitutes the means for communicating the motion of escapement lever F tothe vibrator L. .In this connection it is to be noted that said collar R- is fitted on the escapement lever for adjustment lengthwise thereof, and this adjustment of the lever takesqplace with respect to the pivots of levers P Q. Manifestly an adjustment of the collar toward the free endof lever. F operates to position collar R close to the pivotsof levers P Q and away from the pivot 7 of escapement lever F Accordingly, when the collar R- is at the free end of lever F the extent of upward movement of the collar will be'greater than.

were the collar'positioned closer toward the pivot f of lever F. This collarprovides means for imparting variable throw to le-' vers Q P O, and, accordingly, a variable movement is imparted to vibrator L, which variable movement is useful in the present invention for the reason that the vibrator is operated to bring one or the other of the color sections on the ribbon into the path-of theheads on the type'bars. As a means for shifting collar R to variable positions on the escapement lover, I employ a rod S and a lever S, said rod being connected to the lug R of the shiftable collar. The other end of rod S is connectpivot v is actuated the collar nnparts an increased ed to shift lever r", the latter being fulcrumed at s on a lug s of the frame, see Fig. Lever S is at one side of the machine frame and is in a horizontal position so that one end of the lever is within convenient reach of the operator.

\Vhen the lever occupies the full line position in Fig. 5, rod S draws collar Etcward the pivot f of escapement lever F",

and when the escapement is operated the levers O P Q are actuated by the movement of the escapement lever soas to raise the vibrator to the position shown in' Fig. ll. whereby one color section of the ribbon is brought into the path of the type heads on the type bars. By shifting the lever S to the dotted line position of Fig. 5. rod S moves the collar R toward the free end of lever F and away from its Now when the escapement lever throw to. levers O P Q, as a result of which the vibrator will be moved to a higher position on the guide K, as shown in Fig. 12, thus presenting another color section of the ribbon in the path of the type head on the type bars. The vibrator is actuated each time a key is struck, and when pressure is removed from the key, the vibrator is lowered to its normal position, shown in Fig. 10, whereby the writing line is fully exposed to the view of the operator. In

this connection it is desired to state that the vibrator is moved to diiferent positions on the guide K depending upon the posi- 1 tion of the collar R upon the escapement lever. This position of the collar is determined by the position of lever S. Assuming that a two color, or black and red, rib

bon is used, the mechanism is adjusted to I write the letters in black when the lever S occupies the full line position'of Fig. 5, and the collar, R occuples the position shown in Figs. 8 and 9, and, accordingly,

the vibrator will be moved by the escape i ment lever operating the system of levers to the position of Fig. 11, thus resulting in the type head striking through the black color section of the ribbon. For writing throughthe red color section of the ribbon the lever S is moved to the dotted line position of Fig. 5, and the collar R is slutted toward the free end of escapement lever S", as shown in Fig. 3. Now when t 'escapement is actuated by the depression of the key lovers, the collar R imparts an increased throw to levers O P Q, and the vibrator is moved to a higher position upon the guide, thus presenting the red color section of the ribbon in the path of the type bars. Obviously, the change from one color to the other of the ribbon may be effected easily and quickly by a simple movement ofthe shifting lever S. It has been stated that the guide Kand vibrator L are movable-n anout of service position for the reason that it isdesired to compaCtlydisposeof these parts and: position them .out ff the paflr'of the carriage when the lat is withdrawn from the machine for the ggurpos'e' of compactly folding the carriage,

ithelribbon vibrator, to facilitate storh'ge or transportation, of themachine. The

afitimtingnmchanismfor the vibrator 'piernuts the guidefK and vibrator L (to be easily. Land quickly turned intogtheout of service" position without'dismantling the va'ctuating' mechanism ora'dj'usting any. of

the parts, thereof. It" will be noted that. -v brator and guide K are carried on sup porting bar I for movement therewith to the out of. service position shown in Figs;

3 and 4. The lever O, part'akes of, this turning movement of the yibratorand the guide with bar' I, for the reason that lever gu and the. vibrator, but at thisJ-pointit is' 'O' is connected by pin m withjthe noted that lever O is notpivotally or di rectly attached to levers Poor Q. Accord ingly, the movement of lever O4with'1bar, I,

"the guide, and the vibrator will-take place without disconnecting, said lever 0 from lever P. .WheIiithe bar and its attached parts are. returned to their normal posi-. tion the ,cam Q0, oflever 0- moves' relative" to the cam P ,oflever P, whereby the movement of the vibrator. with the bar and lever. 0 does not disarrange any of "the actuating mechanism for the vibrator, nor does it require any manual adjustment or manipulation ofany part of the vibrator actuating mechanism.

Having .thu s fully describedthe invention,- what I claim as new, and desire to secure by.

Letters Patent is:

' 1. In a typewriter, eambaaaaaa a" platen carriage, of a ribbon vibrator supported normally in an operative, P08111191! relative to said platen-carriage for the type bars to cooperate therewith, said ribbon vibrator being-shiftable'bodily into an out of service position with respct to saidplaten carriage, in which out of-serv ce position the 1 type ba re precluded from cooperating I with s" yibrator, and actuating means'for 1 said ribb vibrator comprising a plurality of devices which remain in, cooperative relation to each other When theribbon vlbrator isgin said normal operatlve position or s shifted'into the out of service position relaf 'tively to the carriage.

2i In a typewriter, the combination platen carriage, of a ribbon vlbraton pos tioned normally in operative relation to -sa d platen carriage for the typebars to cooper-. ate therewith, said ribbon vlbrator bemg rotatablejnto anz out of service relationto the carriage so that the type bars are precluded from" cooperating therewith, and actuating 1 mains for said ribbon "ibrator, said actuat-' able, into ant-out of serviceposition with res .spect tothe platen carriageto" f clude the type bars fromicotiperatlng ,Wltll, actuating means fo ribbonfvi fltive relation, to "the ribbon fb thereof," and means efiectl A, a actuating ,means' for "varying? the escapement mechanism hti on and rotatable at will fin H U j servlce position, and a system ofleversone ing means bein'g in ope ative relation, to sald ribbon vibrator in bo hthenoi maI tion and in the out of thereof. v I I 3. In a typewriter, the combin 1011 with a platen carriage, of a ribbomvibratorpobsif tloned in operative relatip'nf to" platen is er-vicie' os ltlon a carriage for-the type "bars tocoasperat therewith, said ribbon vibrator lbeing sliift;

brator, saidactuating m'ea operative and the out er ,throii throw Of Said ribbon vibrator-.

4., In a. typewriter, the teammate-Lean a at :platen carriage and an escapementmechanism,-of a ribbon vibrator occupyingi'an 1 p- 1 --erative position relativeto' said fplaten cab triage forthe type bars a); cooperatdtherewith,' said ribbon vibrator being shiftable so into. an out" ofservicepositioii; with respect tos'aid carriage for precluding e c apera; tion of the,type bars therewithtia idmeans b u n am as O .11 5. In atypewriter, the comb "atio :with'fa platen carriage and an escapement'mechanism,of aribbon vibrator occupying oper-- ative position relative tosa-id-oplate'n carnage for. the type bars to coeperatetlieiiewitlfisaijd 10 5 ribbon; vibrator being shi able-into an out of serviceposition .wlth asp-eat tofsaidcar;

* ri a-ge for precluding the, cooperationfoffthe type bars therewith, means actuatedby the mentvto said ribbon vibrator, actuating m'eansb'emg in o 4 I 7 I to the vibrator and the' escap memmech nisms in both the operatif vefandi of serv- --ice positions of the vibra or, andgjmea'ns effective through the 'vibrat or-actiiatihg means for imparting variableflmov'ement to said "ibrator. f *1 a In a typewriter, the combination -W1th anescapement mechanism of a ribbon-vibrat toif normally occupying an jo ierative po io an ouVQf of which operable bytlie s'capement mechanism and another bf whichf'cooprates 12 5 {with said vibrator" for impart ng,movement" thereto, the levei's'f'of said system being in operative rela to; f other": 'to the vibrator 1n 'theiopei'atn'e and in the out of 'service'posit onsof said vibrator:

7. In a typewriter, the combination with an escapement mechanism, of a ribbon vibrator for carrying a multi-color ribbon, said ribbon vibrator being rotatable into an out of service position, a system of levers actuated by the escapement mechanism for operating the ribbon vibrator when in normal position, and means controllable at will for varying the throw or movement of said vibrator. to position either color section of a multicolor ribbon into position for use.

8. In a typewriter, the combination with an escapement mechanism, of a ribbon vibrator for carrying a multi-color ribbon, said ribbon vibratorbeing rotatable into an out of service position, a system of levers actuated by the escapement mechanism for operating the ribbon vibrator, and permitting the latter to be moved intothe outof service i position, and means controllable at will for varying the throw or movement of said vibrator to position either colorsecuse.

9. In a typewriter, the combination of a ribbon vibrator, a lever connected thereto, a second lever cooperating with the first lever,

means whereby the vibrator. and the first ond lever.

able therewith, a second lever cooperating with the first lever to permit the aforesaid lever to be moved with the vibrator, and escapement actuated means for operating the second lever.

11. In a typewriter, the combination of a ribbon vibrator movable into operative and out of service relations to a platen carriage, a lever connected to said vib 'ator and movable therewith, a second lever having means for normally retaining the two said levers in operative relation, and means for actuating the second lever. y

12. In a typewriter, the combination of a ribbon vibrator movable into operative and out of service relations to a platen carriage, a member for actuating said vibrator and movable therewith into such out of service and operative positions, a second member normally in operative relation to the first member, and means for automatically operating the second and first members.

13. In a typewriter, the combination of a,

ribbon vibrator movable into operativc and out of service relations to a platen carriage.

a member for actuating said vibrator and movable therewith into such out of service and operative positions, a second member normally in operative relation to the first nected therewith, a second lever cooperate 7 ing wit-h-the first lever, a third lever in operative relation to the e'scapement and the second lever, and means for effecting a variation inthe throw ofvthe third lever.

15. In a typewriter, the combination with 8 an escapement, of a ribbon vibrator movable into an out of service position, a leverconnected therewith, a' second lever cooperating with the first lever, a-third lever in operative relation to the escapementvand the second 8 .lever, a member shiftable to variable posi- .tion of a multi-color ribbon into position for tions relative to the third lever, and means for impart ng movement to said member.

16. In a typewriter, the combination wlth an escapement, of a ribbon vibrator movable 9 into an out of service position, a lever cooperating with the ribbon vlbrator in the operative position thereof, a second lever having a member for imparting movement to the first lever, and a third lever actuated 9 by the .escapement andoperating the second lever.

17. In a typewriter, the combination with an escapement lever, of a ribbon vibrator movable at will into anout of service posi- 1 tion, a lever cooperating with said ribbon vibrator in the operative position thereof, a second lever operated by the movement'of the first lever, a third lever in operative relation to the escapement and the second 1 lever, and a device" actuated by and shiftable' relative to the escapement lever, said device operating to impart variable movement to the third lever.

18. In a typewriter, the combination with 1 the second lever, a collar carried by the es- 1 capement lever and cooperating with the third lever, and means for shlftmg said collar to variable operative positions relative to the third lever and the escapement lever;

19. In a typewriter, the combination of 1 a ribbon vibrator movable to out of service and operative positions, a lever connected to and movable with said vibrator, a second lever supported independently of the first lever. said second lever having a member 1 which is normally in operative relation to the first lever, and escapement actuated means for operating the second lever.

20(111 a typewriter, a rockable supporting bar, a ribbon vibrator carried by said 1 bar and movable therewith intoout ofjserv-J ice and operativepositions, and means for retaining sald bar 1n different positions to which it may be shifted.

- 21. In a typewriter, a rockable supporting bar, a ribbon' vlbratorcarrie'd by said bar and movable therewith into but of service and movable therewith into out of service and operative positions, a plurality .of

- ribbon guides carried by the bar and positioned at the respective sides of the vibrator, and means for retaining saidbar 1n difierent positions to which it may be shifted. i I

23. In a typewriter, the combination with a carriage platen, of a movable type-bar guide, a' ribbon vibrator slidably connected thereto and actuating mechanism for said ribbon vibrator.

24. In a typewriter,.the combination with a carriage platen, of a rockable supporting bar, a type-bar ribbon vibrator slidable' relative to the type-v ba'r guide, and actuating mechanism forcsaid ribbon vibrator.

guide attached thereto, a

4 25. In a typewriter, the combination with 1 a frame, a platen, and'an' escapement, of a ribbon, vibrator rotatable into an out-ofservice position, actuating mechanism for said ribbon vibrator embodying a plurality of members," oneof which is operable in unison with a shifting movement of the platen, and another is actuated-by the es capement, and means for varyingthe'throwof said actuating mechanism so astoi-mpart variable movement to said. ribbon vibrator. 1

In testimony whereof I have signed my two subscribing witnesses.

' 1 GEORGE 'name to this specification'in. the presencelot Witnesses:

LEWIS J. Bonsr, KATE F. Ross.

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