US1052104A - Type-writing machine. - Google Patents

Description

7 FIG. URSBRUCK.

TYPE WRITING MAQHINB. nrmouxon FILED JULY 21, 1910,

' fatented F eb. 4, 1913.

I a SHEET8-SHEETL F. G. URSBRUUK. TYPE WRITING MACHINE.

. APPLIUATION IILED JULY 21, 1910.

a SHEBTS-SHEBT 2.

. Patented Feb. 4,-

Wi'mwow.

P. 0. URSBBUGK. TYPE WRITING MACHINE. APPLIUATION FILED JULY 21, 1910.

Patented Feb. 4, 1913.

3 SHEETS-SHEET 3.

UNITED TA PATENT .rro

FRANK C. 'UIBS BRUGK, OF NEVJ YORK, N. Y., ASSIGNOR TO UNDERWOOD TYPEWRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

TYPE-WRITING MACHINE.

Specification-of Letters Patent. Application filed July 21, 1910. Serial No. 572,960.

Patented Feb. 4,1913.

To all whom z't-may concern: i

Be it known thatI, FRANK C. URsBRUoK, a citizen of the United States, residing in New York, in the county of New York and State of New ,York, have invented certain new and useful Improvements in Ty e- Writing Machines, of which the following is aspecification.

80 a two-ribbon machine, like that disclosed in United States Letters Patent No. 926,054,

- I-granted to J. C. Doane, June 22, 1909,

'- wherein the ribbons are threaded through separate vibrators'or carriers, operated by each typestroke. A shiftable. connector has the usual universal bar, which is vibrated at slotted ears to engage eitherof two wrists projecting from the respective ribbon-vibrat-mg levers, whereby to connect either ri'b: hon-carrier to g the universal bar. Usually,

the ribbon carriers have been constructed in such a mannerthat the active. carrier and its ribbon rub against the idleribbon of the other carrier and tend to lift the same, and to smear ink from one ribbon onto the other, and to overcome this objection, I provide a novel carrier. through -which the forward ribbon is threaded sothat the portion'of the ribbon covering the printing point lies in front of the, carrier, thereby avoiding contact with the rear ribbon or its carrier; the two carriers merely slidin one against the other as they arevibrat The objection is also made to the use of two-ribbon machines, that the ink is liable to ofi'setor smudge from one of the ribbons on to. the

' other when capital letters are being printed.

" At sucha" time, the lower case types strike the 'active ribbon, thereby.

the .upp'er portion or edge of the idle ribbon and press it against the lower portion of ofisetting ink from one to the other.

'One of the objects of the present improvements is tov overcome this difficulty; and to this end I eflI'ect a separation of the ribbons when capital letters are being printed, so that one ribbon cannot press against the other. The separation is efiected byaspring or spring-finger which presses down the carrier of the idle ribbon. When the lower-case letters are being written, there is no danger of color offsetting from one ribbon to the other, because the lower case types are beneath the capital types (when in printing positions), and the capital types do not then strike or press the idle ribbon. When the platen is shifted up to enable the capital types to print, said spring or finger becomes effective to hold or pull down the'carrier of the idle ribbon, so that the latter will clear the active ribbon. Said finger is pivoted upon the platen shift rail and bears against the lever of either idle ribbon carrier, to throw the idle ribbon-down past itsnormal position of rest,'(the platen being in upper case position) so that the active ribbon when vibrated 'to cover the printing point,]will clear the idle ribbon.

Another feature of the invention comprises an improvement on the mechanism to prevent accidental feeding of the idle ribbon, disclosed in United States Letters Pat.- ent to J. G. McLaughlin granted June 22, 1909, No. 926,014=,-wherein arms connected to the ribbon shifting mechanism have fingers which are moved into engagement with the idle spools, or parts connected thereto,

the remaining spools so that they may turn freely. A

.I provide latches pivotally suppo'rted'on the. frame of the machine and operated by arms controlled by the ribbon-shifting mechanism. The arms rock the-la'mhes radially relatively to the spools, to lock one set of spools and release the other set, without liab lity of accidentallyturning' said spools and thereby loosening the ribbon.

7 In the accompanying drawings, Figure 1 is a perspective, showing one form oi the invention applied to anUnderwood writing machine, parts being omitted. Fig. 2 is a detail perspective of the shiftable frame carrying the spring or ribbon-separating finger. and returning cams. Fig. 3 is a detail side mechanism in. idle position, the platen being in lower case position. Fig. 4 isa sectional plan of the connector and the. ribbon-separating mechanism. Fig. 5 is a plan of the ribbon-vibrating mechanism applied to an Underwood writing machine. Fig. 6 is an enlar ed detail plan, partly in SGCtZ-Oll, similar to ig. but showlng the opposite ribbonvibrating lever in idle position. Fig. 7 is a to lock the same, while other arms release .19 view of the ribbon vibrators and operating lid detail perspective of vibrating levers and ribboneepara-ting mechanism. Fig. 8 18 a vertical sectional view, through said mechanism. Fig. 9' is a rear, view. partly in section. or the ribbon-separating mechanism and bracket. Fig.1!) is a rear view of the ribboneeparating mechanism and the v1- ln'ating levers, the connector being shown in section, the left-hand ibbon lever beingidle. Fig. 11 is a similar view, the right-hand ribbon lever being idle. Fig". 12 is a similar view, bot-h levers being-disconnected from the actuator as in stenciling. Fig. 13 is a front view of a. ribbonwinding mechanism for a two-ribbon machine. Fig. 14 is a detail plan of a train of winding gears and the releasable lock, therefor. Figs. 15 and 16 are detail side views respectively, showing a spool gear locked against turnmg, and

released. Fig. 17 is a side view, similar to Fig. 3, showing one of the vibrating levers in idle and the other in active position, the platen being in upper case position. 18 1s a detail perspective'of the front ribbon carrier.

Types 1 on type bars 2 strike rearwardly through either a rear ribbon 3 or a forward ribbon t against the front face of a platen supported on a platen shift rail 6 mounted to reel: in frame 7. The rear ribbon is wound on a pair of spools 8 located on opposite sides of the printing point in front oi the platen, in cups 9. The web of the.

ribbon 3 estending between the spools is threaded, in the usual manner, through a vibrator star. in in front of the platen 7, sons to lie behind the vibrator and adjacent the liten. The forward ribbon 4 is preferably wound upon a separate pair of spools ll, seated in cups "i2, in front or the platen and on opposite sides of the printing point, the web of said *orward ribbon being threaded through a vibrator 13 mounted in front or the vibrator 10, which stands next to the platen. so that the ribbon lies in front of the vibrator on the side farthest from the platen. The ribbons are thus separated by the ihiclrnes ot' the two vibrators, so as '\..thout contact or interference ther, and so that neither ribbon on he other vibrator. The two or carriers vibrate in contact with each o. i, one constituting a partial guide for the other, and the rear vibrator being made of very thin material so as to avoid the more sit at mounting the front vibrator at an undue distance from the platen.

The front ribbon caprier 13 (Fig. 18) may be formed of sheet metal. and has a head ends of the eyes to prevent accidental disengagement of the ribbon and carrier when the latter is vibrated. The outer ends of the arms 16 carry upwardly projecting guard prongs 21, which may be offset forwardly away from the rear ribbon, the forward ribbon passing in front of said prongs, whereby it is positively held separated from the rear ribbon, the prongs forming with the horns 17, a pair of open eyes flankingthe closed eyes. The upper ends of the guard prongs 21, which project above the head have forwardly bent lips 22 to shunt the lower edge of the rear ribbon behind and clear of the upper edge of the forward ribbon when the ribbons are vibrated. The

types force theforward ribbon i through toward the platen, so that an undue ex tent of ribbon is not drawn through the carrier.

In this class of machines, either ribbon carrier 10 or 13 is caused to cover the printing point at each type stroke, by any type bar 2, which, when swung to the platen, presses rearwardly universal bar 23 forming part of a movable frame A ribbonvlbrat-ing yoke 01' connector 25 is shiltably supported on a bracket 26 on the universal bar frame 24; said connector having slotted ears 27 28, to engage respectively the progecting Wrists 29, carried by ribbon- vibratmg levers 31, 32, said ears being spaced apart to free one wrist from its adjacent ear when the remaining ear is engaged with the wrist on the opposite lover. The levers are pivot ed intermediate their ends at 33, to the usual bracket 34 on the platen shift rail (5, to shift with the platen the latter is thrown from lower to upper case position; said levers be ing pivotally connected at their orward ends at 35, to their respective IllJDOli curriers l0 and 13. When one of the cars 27 or 28 has been shifted to engage the adjacent wrist 29 or 30 (Figs. 10 and 11) of the ribbon-carrying levers 31., 32, the vibration of the actuator 23, 24 will rock the lever or 32 on its pivot 33 to cause the ribbon vibrator 10 or 13 to cover the printing point. The connector is shifted relatively to the wrists 29, 30 by a cross arm 36 hearing keys 3?, 37 and intermediate its ends to a rock shaft 38 iournaled in. the frame and having an arm 39 pivoted to a second arm 40 carried by a link a1 fastened at 42, to the connector 25 (Figs. 5 and 11).

- active vi rator is of course freed from the opposition of this spring, that the touch of the finger-keys is not harsh. The'frame 47 its between the slotted ears 28, 29 of the connector, 25, so as to be shifted therewith, and as one ear' engages the wrist on one ribbomcarrying lever to connect it with the actuator 24, the spring-finger 43 slips off of said lever and onto the adjacent, disconnected lever, the free end of the finger being rounded, as at 52, to enable it to slide over the edges of the levers which are beveled as at 53, so that the finger will not catch there- 'against, if the levers are not lying inalinenient. When the platen shift rail 6 .is in lower case position, the ribbon-vibrating ievers l, 32, lie against a stop 44 on the frame, (Fig. 3). When the platen is shifted to upper case position, both vibrating levers are shifted away from the stop, but the pressure of the spring finger 43 against the idle lever turns it on its pivot 33, and as a resuit the idle ribbon-carrier is prevented from having as great an upward movement as the active ribbon-carrier. The idle carrier is thus caused to lie below the active carrier, when thetwoare at rest in' upper case position, (Fig. 17,) and the active carrier,

ribbon past .the upper edge of the idle rib bon, so that the two ribbons do'not overlap, and hence smudg'ing of ink from one ribbon onto the other (due to the lower case types pressing the. ribbons together) is avoided. The pressure of the spring-finger against the idle ribbon-vibrating lever, when the parts are shifted to upper case position, throws the wrist of such lever out of register with the slot in the co-acting car on the connector (Figs. 3, 4, 6 and 8). The idle lever is arrested by one of two opposite stops 54 on .the frame 47.. Said stops preferably have inclined or cam faces and as the connector is shifted from side to side, said cam faces alternately engage the -wrists of the respective levers (when idle) to restore the wrists to register with the slots in the cars, such return taking place while the ear is movingtoward its wrist. Thus, each wrist is guided into its slot.

The pairs of ribbon spools 8 and 11 are mounted onupright shafts 55, journaled in frames and having gears 57 fast thereon. the spool gears 57, on one side 0! gears 57 of the inner spools 11, to wind the of idle spool gears,

the machine is a Winding gear 58, fast on an upright shaft 59, turned by a bevel gear 60 constantly in mesh with a bevel gear 61 on a drive shaft 62. The shaft 59 is journaled in cars 63 carried by a rocking lever 64 pivoted at its lower end at 65; The shaft 59 and rocking lever 64 with their cooperating parts, are duplicated onthe opposite side of the machine, the rocking levers being operated by a lever 65 mounted on the rock shaft 38 controlling the ribbon shifting mechanism, said lever having a link 66 connecting its lower end with the left hand rocking lever 64, its upper-end being con-Y nected by a link 67 with the'right hand rocking lever. When the rocking levers are swung toward each other bythe operation of the cross arm 36 on the rocking shaft 38 (Fig. 13), the winding gears '58, (as seeforth in said patent) are meshed with the front ribbon 4; and when the rocking levers are shifted away from each other, they mesh the gears 58 with the spool gears 57 of theouter spools 8, to wind the rear ribbon 3. Upon each rocking lever '64 are secured oppositely extending arms 68 terminating in fingers 69, to operate latches'Zl which thereby are caused to alternately lock the'pairs of ribbon spools 8 and 11. Said latches are pivoted at 72 tothe'frames 56, op osite each spool gear 57, to rock substantially radially into and out of mesh with the teeth of said cars, so that the latter will not be turned y the engagement of the latches with or their disengagement from the gears. The arms 68 vi rate in a plane transversely to the: plane' in which the latches rock, necessi- {tatingfa loose connection between the arms when vibrated, shifts the lower edge of its;

and latches. Such connection may be, simply efiected'by providing the latcheswith slots or recesses 70,v in which-the fingers 69 of the arms are acdommodated. When the I levers 64 are. rocked. to mesh the :winding 4 gears '58 with one or the other pair of spool gears 57,'the,ar1r.s onejof the latches of each and to, disengage the remaining latch of each pair from the pair of active spool gears, whereby the inner spool gears are in use,- the outer spool gears are locked against turning, and vice versa.

- Variations may be resorted to within the 68 are vibrated to mesh pair with the pair scope of the invention, and portions of the improvements may be used without others. Having -thus described my invention, I I

claim:

1. In a 'typewriting machine,

including a platen shiftable fi'om lower to' P e c position and vice versa, the com ination with a ribbon mechanism including'a of ribbon carriers, levers connectedthereto, an actuator, and a shiftableconnector to couple either leverseparately with the acttiator', the layers shiftable with the pitch,

connector to engage and depress the idle lever and its carrier when the parts are in upper case position.

In a typewriting machine, including a platen shift-able from lower to upper case position and vice versa, the combination with a ribbon mechanism including a pair of ribbon carriers, levers connected thereto, an actuator, and a shiftable connector to couple either lever separately with the actuator, the levers shiftable with the platen, of means to engage and depress the idle lever and its carrier when the parts are in upper case position.

3. In a typewriting machine, including a platen shiftable from lower to upper case position and vice versa, the combination with a ribbon mechanism including a pair of ribbon carriers, levers connected thereto, an actuator, and a shiftable connector to couple either lever separately with the actuator, the levers shiftable' with the platen, of a spring-finger .to effect the detrusion of the idle ribbon carrier below the active rib-- bon carrier when the parts are in upper case position.

4:. The combination with a ribbon mechanism including a pair of ribbon vibrators, pivotally supported levers coupled to the respective vibrators, an actuator vibrating at each type stroke, and a shiftable connector having slotted ears to engage wrists on the respective levers to couple either lever separately to the actuator, of a shiftably supported frame embraced between and shifted by he ears, and a yielding-finger pivoted to the frame to engage and depress either lever when idle to bring the idle ribbon below the active ribbon.

In a typewriting machine, the combination with a platen shiftable to either of two positions by a platen shift rail, and a ribbon mechanism including a pair of ribbon carriers or vibrators, levers coupled to the respective vibrators and pivotally supported. by the platen shift rail to shift therewith, an actuator vibrating at each type stroke, and a shiftable connector to couple either lever separately to the actuator, of a finger shiftable with the connector to throw either vibrator lever to inactive position when the platen is in upper case position, and means to return the lever to position to be engaged by the connector when said lever is to be coupled to the actuator.

6. In a typewriting machine, the combi nation with a platen shiftable to either i two positions by a platen shiftv rail, and a ribbon mechanism including a pair of ribbon carriers or vibrators, levers coupled to the respective vibrators and pivotally sup ported by the platen shift rail to shift therewith, Wrists on the levers, an actuat r vibrating at each type stroke, and a sh "table connector having slotted ears to engage the wrist on either lever to couple it to the actuator, leaving the other lever idle, of a shiftable yielding finger to throw the idle lever to inactive position below the active lever when the platen is in upper case position, thereby throwing the wrist on said lever out of alinement with the slot in its co-acting ear, and cams shiftable with the connector and leading to the slots in therespcctive ears thereof, to return the wrists of the idle lever to position to be engaged by its slotted car when said lever is to be coupled to the actuator.

7. In a typewriting machine, the combinationwith a platen shiftable to either of two positions by a platen shift rail, and a ribbon mechanism including a pair of ribbon carriers or vibrators, levers'coupled to the respective vibrators and pivotally supported by the platen shift rail to shift therewith, wrists on the levers, an actuator vibrating at each type stroke, and a shiftable connector having slotted ears to engage the wrist on either lever to couple it to the ac tuator, leaving the other lever idle, of a shiftable yielding finger to throw the idle lever to inactive position below the active lever when the platen is in upper case position, thereby throwing the wrist on said lever out of alincment with the slot in its co-act-ing car, and a shiftable stop for each lever to arrest the throw thereof caused by the pressure of the said finger, and effective to return the idle lever so that its wrist may be engaged by its co-acting ear.

8. In a typewriting machine, the combination with a platen shiftable to either of two positions by a platen shiftrail, and a ribbon mechanism including a pair of rib bon carriers or vibrators, levers coupled to the respective vibrators and pivot-ally supported by the platen shift rail to shift therewith, wists on the, levers, an actuator vibrating at each type stroke, and a shiftable connector having slotted ears to engage the wrist on either lever to couple it to the actuator, leaving the other lever idle, of a bracket on the platen shift rail, a frame mounted to shift on the bracket withthe connector, a yielding finger carried by the frame to effect a separation of the ribbons, when vibrated, at the time when the platen is in upper case position, and cam faces supported by the frame to arrest the idle lever and to return it to position to be engaged by its slotted car when the frame is shifted.

9. 111a typewi machine, the combination with a platen iiftable to either of two positions by a platen shift rail, and a ribbon mechanism including a pair of boncarriers or v'arators, levers coupled. to the respective vibrators, and pivotally supported by the platen shift rail to shift thereplcd with key-controlled means to shift the idle leverand its carrier relatively to the active lever and its carrier when the platen is in npper ease position, to effect a separationof the ribbons when the active carrier is vibrated, and means to limit the throw ofthe idle le-' ver, and to restore it to position to be couthe actuator when the connector shifted.

10. In a typewriting machine, the combination with a platen s ift-able to either of two positions by a platen shift rail, and a ribb'onmechanism including a pair of ribbon carriers or vibrators, levers coupled to the respective vibrators, and pivotally supported by the platen shift rail to shift therestroke, and a shiftable connector to couple either lever separately to the actuator, of key controlled means toshift the idle lever and its carrier relatively to the active lever and its carrier when the platen is in u per case position, to effect a separation of the ribbons when the active carrier is vibrated, and a cam face for each lever to limit its throw when in idle position and to return it to be coupled with the actuator when the connector is shifted 11. In a typewriting machine, the combination with a pair of vibratory ribbon parriers, ribbon vibrating levers having wrists, an actuator vibratedat each typestroke, a shift'able connector having slotted ears to engage either wrist separately, and guides to direct the wrists into the ears.

12. In a typewriting machine, the combination with a pair of vibratory ribbon car riers, ribbon vibrating levers having wrists, I

an actuator vibrated at each type stroke, a shiftable connector having slotted ears to engage either wrist separately, a spring finger to throw the idle ribbon vibrating lever to inactive position, thereby moving its wrist out of register with the slot in the co-acting ear, and guides to direct the wrists into the ears.

nation with a ribbon mechanism including two pairs of rlbbon spools, gears therefor, a

pair of winding gears, rocking levers sup-- porting the winding gears, means connecting the levers to swmg the winding gears into mesh with either pair of spool gears, latches pivoted on a stationar sup ort to move ra-' dially into and out o mes with the spool gears, to lock the idle gears against turning and to release the active gears, and arms carried by the rocking levers and loosely connected with the latches to control the latter.

14. In a'typewriting machine, the combination with a ribbon meehanism including 66 two pairs of ribbon spool gears, a pair of with, an actuator vibrating at each type 13. In a typewriting machine, the combihold the ribbon fiat.-

- Winding gears, rocking levers supporting the winding gears, and means to shift the levers to mesh the winding gears with eithei pair of spool gears, of pivotally supported latches movable radially into and. out of mesh with the spool gears, and having openings, and arms on the levers, the ends of said arms being accommodated in the open- .ings to rock the latches to lock the idle spool gears and release the active spool gears without turning said spool gears.

15. Ina typewriting machine, the combination with a ribbon mechanism including vibratory ribbon carriers, means to effect the vibration of either ribbon carrier separately, means to throw either carrier when; idle to an inefiective position, whereby when the platen is in upper case'oosition, the active ribbon will be vibrated past the idle ribbon, one of said carriers having a head with a. type opening therein, horns co-acting with the head to form eyeson opposite sides oft-he type opening, means to close the eyes against the accidental disengagement of the ribbon therefrom, guard prongs oifset from the horns, in front of which the front ribbon passes to separate it from the rear ribbon,

the upper ends of the prongs being bent for- .Wardly over the upper edge of the ribbon to prevent the lower edge of the reap ribbon. from engaging the upper edge of said frontribbon" when the rear carrier is vibrated.

16. In a typewriting machine, a ribbon vibrator or guide comprising a head having a type opening therein, eyes locatedon opposite sidesof the opening, means to prevent v the disengagement of the ribbon from the eyes during its vibration, and open eyes flanking the closed eves to enable the ribbon to be threaded through the vibrator to lie in 1 5 front thereof. 17. In a typewriting machine, ,aribbon carrier comprising a head having a type opening, horns projecting upwardly beside the head to form eyes, the upper ends of the horns being bent forwardlyto. facilitate the entrance of the ribbon, fingers closing the upper ends of the eyes against the accidental disengagementof the ribbon'therefrom, and flanges on the horns overlapping the head to 5 18. In a typewriting machine,'itl1e combi nation with a ribbon mechanism-employing two ribbons and separate ribbon carriers; therefor, one of said carriers havinga head 1' 2o with a type opening therein, horns projecting upwardly beside'the headand co-actingtherewith to form eyes, means to prevent the accidental disengagement of theribbon from the eyes, means to hold the ribbon flat during the vibration of the carrier, and guard prongs offset from the horns to effect a separation of the two ribbons and ,coiiperatmg with the horns to form open eyes in which the ribbon is accommodated.

19. ln s typewriting 1nachine,.- -ibboh carrier comprising a head having; type openin up *erdly projecting" horns lying adjacent the head on onnosite sides of the type opening, fingers extending; forwardly from the head and passing close to the upper ends of the horns to close the eyes formed between the horns and the head against the accidental disengagement of the. ribbon therewith, and guard prongs extending about parallel with the horns and space ll therefrom to form open e es offset from the, closed eyes. i a I 20. In a. typewriting' machine, a ribbon carrier comprising a head having; type opening therein, oppositely projecting arms on the head, horns projecting upwardly troin the arms and eo-actingwith the heat to form eyes on opposite sides or" the type opening, flanges on the horns, overlying the head to hold the ribbon flat, fingers closing the upper ends of the eyes against the accidental disengagement of the ribbon therefrom, and guard prongs projecting upwardly from the arms and eo-actingwith the horns to form open eyes.

' 21. In a two-ribhon type'writing machine, a ribbon mechanism including pair of vibratory ribbon oerriers, means to vibrate either to the exclusion of the other, the front carrier comprising s head having a type opening, eyes lying on opposite sides of the head to l10ll the ribbon fiat durinp" the vibration or" the carrier, lingers to prevent the accidental disengagement of the ribbon from the eyes, and guard prongs offset from the eyes to separate the front ribbon from the rear ribbon and to prevent the interference of the lower edge of the rear ribbon With the upper edge oi the front ribbon when the reer carrier is vibrated.

22. In a typewriting nniehine, the combnetion with e platen, of n pair of ribbon vibrators standing one clireetly in front of the other in front of the platen, the warmest ibretor having its ribbon t-ln'eecled therethrough to lie behind the plane between the vibrators and adjacentthe platen, the forward vibrator having its ribbon threaded therethronglfh to lie in front of said plane.

in a typewriiing machine, it ribbon vibrator having head provided with a type opening and eyes on the sides of the head, through which the ribbon, threaded,

and also proviclecl with ribbon-guiding prongs at the sides of the eggs: said prongs ofiset forwardly from the heed.

24. In :1 typewriting machine, ribboncarrier comprising a, head boring type opening and. having members on the sides of the type opening forming ribbon-guidingeyes, said members inelmling flanges which overlie the henrl "forming slots to hold the ribbon flat.

25. In a typewriting lneehine, a, ribbonopening he gmemhers on he sides of i type opening forming rihbon-ggilitl- Ting eyes, s-id. members including hinges which overlie the head to hold the ribbon flat, said carrier also having ribbon-toi ing prongs at the sides 'ofsoio'eyee; seitl ofiset forwardly "from said beset.

2?, In a typewriting machine, e ribbon carrier comprising heed having a. type opening, horns projecting; npW-erdly beside the head to form eyes, fingers olosin the upper ends 033 the eyes against accidental disengagement of the ribbon therefrom, and flanges on the horns over apping the to hold the ribbon fiat.

27 in a. typewriting machine, a, ribbon carrier comprising hee l having s, ty eopening, horns proieet" upwarclly beslcle the head to eo jpero 'th to form eyes, and on serial horns overlap ing' the head if lining a siot to hoiri the riboon flat.

28. In typewriting moehine, e ribbon carrier comprising heecl having a type opening, horns projecting upwerdiy beside the head to'eoiiperete the *ewith to form eyes, on seicl horn overlspiiing; the head. to hold the ribbon net, and other ribbonguicling horns at the sioies o? the firstinentionel horns Fin two-ribbon t pewriting machine, a rear ribbon carrier, effront ribbon merrier adjacent said. e rrier, zoniprising vices tl eh the ribbon. is threerled, said i st their np er nortions form eeting ports Whic" LI BVQHiL owing fouled with I is lower e eer ..-bbon. S6. so mine, the cone bination V n 3 l' J of ribbon vib at tors, of fe means for'silencing either one and eoneomitently bringing the other one into use, support on which seicl vi brutors wt itlle and means eon-- tro il by shi' able means for yieldingly in r e i ,neetl vibrator from movement seio support.

31. typewriting mechingsthe complurality of ribbon vibraersel be; operable at the type o emneotion for eonnecting o er 1' 1: '3 the universal, her and silencing the other vihrstor, e srp'port on which and vibrators may rest when idle, and sprin oonnemtecl to said shifteble eon. neetion to ift therewith. to position to against said restrain the silenced yibratoi support.

in tynewriting niechine, the com- L 1 s blnzuion Wltll a platen shiiteble upwardly for Writing capitol letters, of 21 psi of ribshiilecl up to write capital letters caus- "5 for writing capital letbers, of a pair of riboverlying said fiat member.

ing the silenced ribbon vibrator to occupy arranged to move the ribbon between a type an abnormelly low normal position. and said platen, a fiat member comprising 33. In a typewriiing machine, the coma straight edge over which the ribbon passes bination with a platen shifteble upwardly in feeding'across saidvibrator, and a flange bon vibrators; sfoifiable means for silencing 35. In a iypewriting machine, the com- I either vibrator and bringing the other into bination with a ribbon vibrator of the ordiuse, a yielding device 'coimeote. to said, fnary type, of a ribbon vibrator having flat shiftable means for cooperation only' rv'ith members and ears on said flat members, and 10' the silenced vibrator; to canse the some to flanges arranged tOl hold said ribbon flat 5 iron relatively to the activevibrator when against certain of said flat members. the platen is shifted up for writing capital I FRANK O. URSBRUCK.

letters. Witnesses: In a iygewritlngflmeclnne, the com- C. RIPLEY, 15 binatiozaa-iwithga platen, of a,- rlbbon vibrator B. GOLDBERG.

. Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of Eatent,

' Washington, I). G.

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