US959444A - Type-writing machine. - Google Patents

Description

I W. E. BARNARVD.

TYPE WRITING MACJH INE.

APPLICATION FILED JULY 6,1908.

I Patented May 31, 1910.

4 sums-sum 1.

W. E, BARNARD. TYPE WRITING MAGEINE. vAIPTJIUATMJIQ FILED JULY6,1908. Y

PatentdMay 3151.910;

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W6 v W W. E. BARNARDQ TYPE WRITING MACHINE. APPLICATION FILED JULY.6,1908.

Patented May 31', .1910

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UNITED STATES PATENT OFFICE.

' WALTER E. BARNARD, OF HARTFORD, CONNECTICUT, ASSIGNOR TO UNDERWOOD TYPE- WEITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

TYPE-WRITING lVIACZ-IINE.

. a citizen of the United States, residing in Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Ltquovcrnents in TypelVriting Machines, of which the following is a specification.

This invention relates to the ribbon mechanisms of writing machines, especially those in which the ribbon is vibrated to cover and uncover the printing point at each type stroke.

()ne of the main objects of the invention is to provide simple, inexpensive and con.- veniently operated means for silencing the ribbon vibrator when it is desired to use the machine for writing stencils. In carrying out this feature of the invention, a ribbon actuator is pivoted to the universal bar frame (which vibrates at the key strokes), and a lock is provided upon the universal bar frame to prevent said actuator from turning about its pivot. Thus when the lock is released, the actuator may swing idly duringthc reciprocations of the universal bar, so that no nn'ivemcnt impartedto the ribbon vibrator; while when the actuator is locked, it reciprocates with the universal bar and vibrates the ribbon up and down to cover and uncover the printing point. The lock suitably connected to a key or fingerpiece mounted in a position convenient to the keyboard. Said finger-piece also controls means to silence the ribbon-winding mechanism, so that objectionable feeding of the ribbon during the writing of stencils is avoided.

Another main object of the invention is to make provision for the ribbon to be wound by the action of the usual carriagedrivinp; spring, without incurring the drawbacks heretofore experienced with such mechanism, the principal of which has been due to the relatively rapid movement of the ribbon during the rapid running oi. the released carriage in letter-feeding direction, as when tabulating or when performing other operations. To this end, I connect to the carriage-rolesing means a device which also releases theribbon spools from the control of the carriage spring,.so that the ribbon does not wind when the carriage is released. This provision is of special import-once in cases where the ribbon feed is Specification of Letters Patent.

- Application filed July 6, 1908. Serial No. 442,018.

Patented May 31, 1910.

automatically reversed, since it has been found in practice that the rapid movement of a carriagedriven ribbon, set up when the carriage is released, is obnoxious and sometimes fatal to the proper Working of the auton'iatic ribbon-reversing mechanism; the ribbon in the ribbon'vibrating class of machines being usually frail and sometimes rupturing under the sudden strain occurring when the ribbon-reversing devices chance to operate during the rapid running of the re.- leased carriage.

The aforesaid improvements are shown in connection with a novel ribbon-reversing mechanism which is simple, inexpensive and applicable to existing machines with a moderate amount of alteration therein. The movements of'the ribbon-reversing devices are controlled by means of a follower riding upon the coils of ribbon, to set the reversing devices into operation when the spool becomes empty. Objections that have heretofore existed to the use of followers are largely overcome by my invention. The follower is mounted upon the winding shaft to turn with the spool, and bears against the edges of the coils of ribbon, and in no wise interferes with the detachment or attachment of the spool to the winding shaft. To avoid liability of the follower being wrapped up within the coils, and for other purposes, I contrive to separate the follower from the coils at each revolution of the spool, whereby all liability of fouling of the ribbon or of the follower is avoided. When the coils of ribbon are paid oif from the spool, the follower is permitted to enter thespool and assume a position to release a latch during the rotation of the spool, and

thus permits the operation of the automatic devices to shift the usual driving shaft.

Other features and advantages will hereinafter appear. In the accompanying drawings, Figure l is a plan and Fig. 2 a front elevation of the ribbon spools, the main driving shaft, etc. Fig. 3 is a front perspective View, showing portions of the paper carriage, the initial ribbon-driving gear and its connections, the ribbon vibrator and the universal bar frame and connections. Fig. 4 is a front elevation showing in normal or locked position the lock for causing the ribbon to be vibrated at the type strokes. Fig. 5 is a similarview to .Fig. 4, butshows the lock released, so

Q ceases that the ribbon remains stationary or idle at the type strokes. Fig. 6 is a sectional side elevation illustrating the universal bar as having been moved back at the printing stroke of the type bar, and the ribbon-vibrating actuator as having swung'idly about its pivot on the universal bar frame. Fig. 7 is a sectional side elevation similar to Fig. 6, and showing the parts all in normal positions. Fig. 8'shows the universal bar in the same position, as at Fig. 6, and illustrates the manner in which the locked actuator I thrusts up the ribbon vibrator at the type strokes. ,Fig. 9 is a sectional side elevation showing a fragment'of the initial drive-gear of the ribbon-winding mechanism, and also showing the manner in which it is disconnected from the remainder of the winding mechanism. Fig. l0'is a part sectional side elevation showin principally the left hand ribbon spool an the gearing between the carriage spring barrel and the main ribbonwinding shaft, and also the finger-piece at thdkeyboard for silencing the ribbon-winding mechanism and the ribbon vibrator. Fig. 11 is a part sectional. plan, showing the gears extending from the spring-driving barrel to the main ribbon winding shaft and connected parts. Fig. 12 is a plan showing the same parts as in the left hand portion of Fig. 1, but illustrating the automatic operation of shifting the main transverse ribbon driving shaft to connect with the left hand spool. Fig. 13 is a plan of the left hand. front corner of the machine showing the ribbon-controlling key. Fig. 14 is a perspective view of the ribbon reversing. mechanism. Fig. 15 is a perspective of a ribbon spool; and Fig. 16 is a sectional side elevation of a tabulating mechanism including a carriage rack which is connected to the ribbon operating mechanism.

In the Underwood front strike writing machine, type bars 1 strike through a ribbon 2 against the front side of a platen 3, the latter suitably mounted upon a carriage, of which a part is seen at 4-. The carriage is propelled by a spring-barrel by means of a strap 6; A rack 7 is hinged upon the carriage at 8 by means of a pair of arms 9, and meshes with a pinion 10 connected to an escapement wheel 11. The rack is releasable by a key lz fixed to one of the arms 9, the

i '-1 depression of said key swinging up the rack to separate it from the cscapemcnt pinion 10, so that it may be drawn along by the spring-barrel 5. The carriage runs upon the usual rails, one of which is seen at 13. Said ribbon 2 is wound upon a pair of similar spools 1a, 15, detachably mounted upon vertical shafts 16, 17, mounted in brackets 18, 19, supported upon the fraineii o'i'lr 20 of the machine. The spools have central perforations to fit on the tops of the shafts, and are also perforated to fit upon dowelins 21 projecting up from supporting colars 22 fixed on the shafts, whereby the spools are caused to rotate. At their lower ends, the spool-shafts carry miter gears 23.

24, to mesh alternately with similar gears specified are in common use on said U nder wood machine. The ribbon-winding devices also include an initial drive-gear 3O fixed upon the carriage driving spring barrel 5, and meshing with a pinion 31, the latter connected by a forwardly extending shaft 32 to a bevel pinion 33, meshin with a bcvcl pinion 3%. This pinion 34 is oosely mounted upon a transverse shaft 35, and the latter is connected b bevel pinions 36,37 to an other forward y extending shaft 38, which carries at its forward end a bevel pinion 39, meshing with a gear i0 on the left hand end of the main transverse driving shaft 27. It will be seen that the pinion 34 is fixed to a ratchet wheel 41, both these members being loose upon the shaft 35; and that said shaft carries a fixed arm 42 upon which is pivoted a pawl 43 to engage said ratchet wheel; thus permitting the spring barrel to turn back Without winding -the ribbon during the return of the carriage to begin a new line. This arrangement also permits the ribbon to be-wound manually independently of the carriage spring, by means of a handle 44rupon the gear 40.

Disconnection may be efiected between the initial drive-gear 30 and the pinion 81, the latter being mounted for this purpose upon an arm 45 hinged at i6 upon the framework of the machine. The arm 45 may be turned down .as at Fig. 9, to' drop the pinion away from the gear; and a compression spring a7 is provided for returning the arm and pinion to normal positions. It will be seen that during this swinging movement, the pinion 33 remains in mesh with the pinion 34. The described disconnection or release of the pinion 31 may be efi'ected by an arm 48 fixed upon a transverse horizontal IOfik: shaft 49, suitably mounted upon the framework and carrying at its other end an arm 50, havin a cam-slot 51 engageable by a screw or pin 52 formed upon the lower free end of a lever arm 53. Said lever arm is pivoted upon the framework at fi l, so that by a swinging movement forwardly and backwardly, the arm' 50 may be cammed down to rock the shaft a9 and disconnect the pinion 31. Said lever is provided with an upper arm 55 having a roll 56 to run upon the releasable carriage rack 7, so that when the latter is lifted from the pinion 10, the lever 5d, 55 is vibrated, and the arm 50 is The finger piece rocked, and the pinion 81 disconnected from the drive-gear 30, thus silencing the rihbonwinding mechanism during the rapid ruu the carriage in letter direction. This ca *riage rack is frequently released by means of o tohulator-lzey 5? operating [l8- nominational str p rod 58 to engage a column stop .59 upon the carriage; said column stop rod having a lug ts) to operate frame or 'arm 61, wl'aich in turn operates a carrying a roll .63, which lifts the rock when the tabulutor key is operated. Thus during the rapid inovemem ot' the uirriuge in tabulating the ribbon is not l e-cl, and. liuhilit llVOldQCl of injury thereto, or to U i whirling mechanism, faulty action the eutoin tic mechanism. 'l'his silem of winding uiecluu' u may he i only by the carriage rel my l4 s tabulutor key 57, hutslso by l piece G l arranged at the heyhuzux o chine upon the forward end or" a 1.

i l rmiy he pulled tor wardly, acting through said link to swing;- foru'arolly a crank {it} which depends from a sleeve 67 loosely surrounding the rockshaft 49, and carrying at its other end an arm 68 having lug (it) to engage a crank 70 fixed upon the rock-shelt- 49. The fingerpiece 64 therefore pulls the link 6:3,swiugs the crank 66, sleeve 6?, and arm 68, and by means of the lug 69 turns the crank "Z0, and hence the rock-shaft $9, to lift llll.6;tlll'14r8 and. depress the pinion Ell, Fig. 9, A spring do tenlr'll engages either 01% two notches in the link 65 to hold the parts in either the Fig. 10 positiou or the Fig. '9 position. The forward end of the link 55 is supported on a pin 73, by means of a horiztuuul slot Til cut in an eulz'zrgcment of the link. Said. finger-pi 's is used not only to silence the Wind lg mechanism, but to silence the ribbonvibrating mechanism, the latter including the usual u istuntliug vihrulor or ribbon carrier 76 and o lever "(7 operating the some, said lever mounted on a bracket 78 projecting; from :1 platen shift rail 75 us usual.

The ribbon viluutiug n'iovcmcuts are oh fcctcd through a l'lIllVGl'SZll bar 80, "which ut. every type stroke is engaged and pushed back by 1% heel 81, on the type bur. hluid universal bur forms part or a frame 82 suit ably supported in front, and in rear mounh ed upon links 83. The universal bur operates the usual carriage ieccl (logs (not shown). Upon an upstanding,- uriu ti l oi said ribhon-vilnnliug lever 77, is proviilcil a wrist 85, to ougug a slot 8C jloruiczl in an actuator 87 Ulflliililll upon the reciprocating universal bur frame. The slot so permits the shifting up and down ol'. the lever 84-, 77, together with the shift. rail 79, at the case-shifting movements of the platen 3.

The actuator 8? may either swing idly about its pivot 85%, by wh ch it mounted upon an upstunclin *m 85% fixed upon the universal hur frzu'ne c2 (lii' or it may move backwurcl curl torw, with the universal bur (F '4" and 8). lo the first case, the ribbon-vibrating lever 7? will remain stationary at typo strokes; while in the other use, sairl lever will be active at the type strokes to vibrate the ribbon up and down to and uncover the printing point. This diilerence in the action of the actuator 23? is eil'ectecl hyuieuns of it looking lever 90, pivoted at; 91 upon the arm till-to swing up in front of a log 92 formed on the lower end of the actuator 33', that is, the end opthe pivot as at l i s. 3, l, '7 and 8. '1 the lock is depre cl, Figs. ound latter hence swings idly about the pivot 88 while remaining in QODIHCilOH with the wrist This ellcct is shown at Fig. 6, in which the universal bar frame 82 is in its rear position, that is, the position occupied by it at the completion of the printing stroke of the type bur. When however the lever 90 is up in nominal position, the actuator moves with the universul her from the Fig. 7 to the Fig. 8 position .u each printing stroke, thereby lifting the rih-hon vibrator 76. The lever lock 90 is controlled by said fee(l-silcncing key (34; :1 link 93 being pivoted at its upper eml r-u' fi l to an arm of said lever 90, and at its lower Hill to the arm (38 controlled by suitl key (54-, in the manner 21- rcariy aloscrilml. l"hus said key (94 when moved forwardly from the l 10 position sizuu ltuneously silences both the ribbon-vihreting mechanism and the ribbon-feeding mechanism, and the dctcnt 71 holds it 'in this position, so that the uninkcd types may be used for writing stencils "etc, without any movement on the port or the ribbon.

'lhe mechanism for reversing the feed of the ribbon comprises a worm 95 fixed upon the ciulwisc shiltuble muiu ilriving-slmtt 27, and u tumbler 95 to engage sui l worm, suiil tumbler mounted upon an arm 96, the latlcr fixed by uiruns oi :1. hub 97 upon the lower end of a vertical rock shaft 98, alongside the spool-shaft lo; a spring 99, surrounding said r ick-seiiutt :uul (letcnt, tcntilug constantly to swing the tumbler 95 into mesh with the worm 5%.). This movement of the tunlblcuis normally prcvcnteclbyu latch 100 (Fig. 10) which is pivoted upon an arm lOl likcil'by a hub 102 upon the upper unil cl saitl vertical shaft 98. A draws iring 103 normally holds said latch in engugcmcnt with a. catch All fiscal-upon the machine frame. ll; will he understood that when said latch is released, the shaft 98 is caused by the spring 99 to swing the tumhler 95? into engagement with the Worm 05. so that the rotation of the latter may force-the rotating shaft 27 longitudinally to the left to cause the gear 25 to move to or toward the gear 23; such endwise movement of the shaft being effected by the movement of the spring detcnt cam 28 acting on the bevel collar 20. Said latch 100 is automatically released when the ribbon is all paid off from the spool 11, by the following means: A follower 105 is pivoted at 106 to the lower portion of the collar 22 on the shaft 10, and has a nose 107 which bears up against the edges of the coils of ribbon 2 wound upon the spool core 108. Said'nose 107 extends up through an opening 109 in the bottom of the usual spool cup 110. and also up through any one of a series of openings 111, formed in the flanges of the spool. the latter as usual being mountable either side up upon the shaft. 10. The follower is counter-weighted by means of an arm 112, so that the nose 107 tends constantly to rise within the spool.

To prevent the ribbon from becoming fouled, and the nose 10? from becoming wrapped up in the coils of ribbon, 1 contrivc to withdraw said nose from the coils once in each revolution of the spool; this operation being effected by a cam 113, which is fixed upon the framework in the path of said arm 112. to turnthe follower to the dotted line position at Fig. 10. The cam is two sided. as shown best at: lsig. 2, to operate the arm 105 when the spool is rotated in either direction.

it will be understood that the follower repeatedly taps against the ribbon coils during the winding or unwinding of the ribbon from the spool; but that no function is performed by said follower until the coils of ribbon become all or nearly all paid off, as at 10, so that the nose 107 is permitted to penetrate the spool, as shown in full lines at Fig. 10. In this position of the follower, the arm 112 is enabled to engage a lip H t-formed on a. lever 115 pivoted at 116 upon the framework as at Fig. 12, and to swing said lever forwardly to engage a cam. edge 11? formed on the tooth of the latch 100, thereby camniing said' latch down, and releasing it from the fixed catch 10%, so that the spring 99 may swing the tumbler 95 into engagementwith the shaft-shifting worm 95. hen the tumbler 95* engages the worm 95, a second latch 118 pivoted at 119 on said tumbler drops over a catch r20 fixed upon the stationary bracket 18, to hold the tumbler in engagement with the worm, so that there is no liability of the tumbler being pushed to one side by the pressure of the worm thereon. As before explained. the shaft 27 is thrust to the left to engage the gears 23 and 25 and rewind the ribbon upon the spool 14.

Fired to the right hand end of the worm the final portion of 05 is a cam 121. which comes into play as soon as the shaft 27 is shifted to the left,'

to engage alug 122 on the latch 118, and lift the latch from the fixed catch 120, thereby releasing the tumbler 95 Said cam 121 thereupon engages the rear or active edge of said tumbler, and presses the same forwardly away from the worm sufficiently to enable the first latch 100 to become caught upon the catch 101; this bringing the parts in position to be reactuated the next time the spool 14 becomes empty. It will also be perceived that-the shaft 27 may be shifted endwise by a button 128, and also that'the gear 10. which is loosely mounted upon the shaft 27, is held against axial movement by means of a deteut 124: fixed upon the stationary bracket 18 and engaging a peripheral groove 125 formed in the hub of said wheel. A collar 126 is fixed upon the' shaft to carry a pin 127 extending into a hole 128,

Fig. 11 parallel with the shaft 27 to enable the gear 10 to turn the shaft. Said lever or interponent 115, after releasing the latch 100. is swung to one side by the advancing.

arm 112 of the follower; and as soon as the lever escapes from said arm, it is returned to normal position by a sprin 129. In addition to the counterweight of the arm 112, the follower may be provided with a sprang 130, Fig. 1, to tend constantly to throw the nose 101' up into the spool.

Assoon as engagement is automaticali effected between the gears 20 and 25 in the manner already described, the spool 1% be gins to turn in the opposite direction, the ribbon rewinding upon the core, and arm 112 of the follower riding idly 'over the cam 113, thus withdrawing the nose 107 from the coils'at every revolution of the spool, and permitting the same to bear against the coils at corresponding intervals; this idle vibration of the follower continuing 'dur' ing the winding and subsequent unwinding of the ribbon.

The described movement of the shaft 27 to the left separates the gear 26 from the gear 24, and permits the ribbon to pay off from the spool 15 as it winds on the spool 14;. When 'the spool 15 becomes empty the shaft 27 moves automatically to the right to separate the gear 23, and reengage the gears 24 and 26 to rewind the ribbon on the spool 15. This automatic movement of the shaft :f' to the right is effected in the same manner as its movement to the left hereinhefore described; the spool 15 being provided with a follower 131 to release a latch 132 carried upon a vertical shaft 133, which is turned by a spring 13 1 to swing a tumbler 135 into engagnient with a worm 1236 fixed on said shaft 2T; said worm having a retaining latch 13?. and a cam 138 to lift the latch to restore the tumbler 135 to normal position.

Variations may be resorted to Within the scope of the invention, and portions of the improvements may be used without others.

avmg thus described. my invention, I claim:

1. In a typewriting machine, the combination with a universal bar device reciprooating at the key strokes, of an actuator mounted loosely upon. said universal bar device, a ribbon :ibrator, releasing means mounted on said universalbar device, to enable said universal bar device to cause said actuator to operate said vibrator, and- 'univ'ersal bar device to releasably lock said actuator to the univcrsal bar device to cause the actuator to operate said ribbonvibrating device.

3. In a typewriting machine, the combination with a universal bar device reciprocating at the key strokes, of an actuator mounted loosely upon said universal bar i device, a ribbon vibrator permanently connected to said universal bar device, releasing means to enable said universal bar device to cause said actuator to operate said vibrator, and a finger-piece for said releasing means.

i. In a typewriting machine, thecombination with a universal bar frame or device, of an actuator swiveled thereon, a ribbonvibrating device engagedby said actuator, a lever pivoted upon said-universal bar device to lock and release said actuator, a link connected to said releasing means, and an arm iivoted upon the framework and connecte to said link.

5. In a typewriting machine, the combination with a universal bar frame or device, of an actuator swiveled thereon, a ribbonvibrating device engaged .by said actuator, a lever pivoted upon said universal bar device to lock and release said actuator, a link connected to said releasing means, an arm pivoted upon the framework and connected to said link, and a finger-piece upon the framework and connected to said arm.-

6. In a typewriting machine, the combination with a universal bar device reciprocating atfthe key strokes, of an actuator mounted loosely upon-said universal bar device, a ribbon vibrator permanently connected to said universal bar device, releasing means to enable said universal bar device to cause said actuator to operate said vibrator, a finger-piece for said releasing means, and

means for holding said finger-piece in position either to lock or release said actuator.

7 In a typewriting machine, the combination with a universal bar frame which reeiprocates at the type strokes, of an actuator pivoted upon said frame, a ribbon vibrating lever engaging said actuator, a locking lever pivoted upon the universal bar frame to engage said actuator to enable the universal b'ar frame to cause said actuator to operate said ribbon-vibrating lever, and a detent to hold said lever in either effective or ineffective position.

8. In a typewriting machine, the combination with a universal bar device which reciprocates at the type strokes, of a ribbonvibrating lever, an actuator pivoted upon said universal bar device, and means for causing said actuator either to swing idly. 'upon its pivot at the type strokes or to vibratesaid lever at the type strokes, at will.

9. In a typewriting machine, the combination of a rock shaft mounted upon the framework and having a crank, a member connected to said crank and having a key or fingenpiece, a link extending from the crank, a lever connected to the link-and pivoted upon a universal bar which-is reciprosaid lever, an actuator swiveled upon said universal bar to be either released or locked by said lock, a ribbon-vibrating lever conneoted to said actuator, and means for detaining the fingerpiece in either actuatorlocking or actuator-releasing position.

10.- In a typewriting machine, the combination of a'rock shaft mounted upon'the framework and having a crank, a member fingenpiece, a link extending from the crank, a. lever connected to the link and pivoted upon a universal bar which is reciprocated at the key strokes, a lock operated by said lever,an actuatorswiveled uponsaid universal bar to be either, released or locked by said look, a ribbon vibrating lever connected to said actuator, means for detaining the finger-piece in either actuatordocking or actuator-releasing position, a carriage, a spring to drive said carriage, a ribbon feed ing mechanism actuated by said spring, and meansconnccted to said key to release the ribbon-feeding mechanism from said spring when the vibrator actuator is released, so that the ribbon may neither feed nor vibrate.

11. In a typewriting machine, the combination with. a case-shift rail, a lever fulcrumed thereon and a ribblon vibrator operated by said ciprocating at the key strokes, an actuator having a slot engaged by a Wrist on said lever, said slot constructed to accommodate the shifting movement oi the rail and lever, land said actuator pivoted upon said amcated at the key strokes, a lock operated by connected to said crank and having a key or lever, of a universal bar reversal bar frame, and a releasable lock for the actuator to cause it either to move rigidly with the universal bar frame or to swine idly about its pivot during the reciprocations of said frame.

12. In a typewriting machine, the combination with a case-shift rail, a lever fulcrumed thereon, and a ribbon vibrator operated by said lever, of a universal bar reciprocating at the key strokes, an actuator having a slot engaged by a wrist on said lever, said slotconstructed to accommodate the shifting movement of the rail and lever, and said actuator pivoted upon said universal bar frame, and a releasable lock for the actuator to cause it either to move rigidly with the universal bar frame or to swing idly about its pivot during the reciprocationsof said frame, said wrist standing in said slot normally near one end of the actuator, and the latter being pivoted at its other end.

13. In a typewriting machine, the combination with a universal bar frame reciproeating at the key strokes, a ribbon vibrating device permanently connected to said universal bar frame, a releasable lock mounted upon said universal bar frame for causing the universal bar to operate said vibrating device, and a key upon the framework and loosely connected to said lock.

ll. in a typcwriting machine, the combination with a, universal bar reciprocating at the type strokes, of a ribbon carrier, a lever to vibrate the ribbon carrier, an actir ator swiveled on said universal bar to permit the latter to reciprocate while the lever remains idle, and a lock mounted uponsaid universal bar to engage the actuator, to cause the same tomove rigidly with the universal bar, and thereby vibrate the lever and ribbon carrier, a link connected to said lock, and a lever mounted upon the framework of the machine and so connected to said link as to permit the latter to vibrate idly during the reciprocation of the universal bar.

15. In a typewriting'machine, the combination with a universal bar device reciprocating at the key strokes, of an actuator mounted loosely upon said universal bar device, a ribbon vibrator operated by said actuator, releasing means mounted on said universal bar device, to cause said actuator to move rigi illy'with said universal bar device,

a linger-piece upon the framework of the machine having a loose connection to said releasing means, to permit the latter to move with the universal bar while the fingerpiece remains stationary, spool-winding means, and means connected to said finger piece to silence said spool-winding means.

16. In a typewriting machine, the combination with a universal bar frame or device,

-, of an actuator swiveled thereon, a ribbon-vilever pivoted upon said universal .bar device to lock or release said actuator, a link connected to said releasing means, an arm pivoted upon the framework and connected to said link, a ribbonwvinding mechanism, and means connected to said arm to silence the ribbon Winding mechanism when the actuator is released.

17. In a typewriting machine, the combination with a ribbon-Winding mechanism, of a rock shaft mounted upon the frame work and having a crank, means operable by said rock shaft to silence said ribbon-Winding mechanism, a member connected to said crank and having a key or finger-piece, a

link extending from the crank, a lever conneeted to the link and pivoted-upon a universal bar which is reciprocated at the key 7 strokes, a lock operated by said lever, an actuator swiveled upon said universal bar to be either released or locked by said look, a ribbon-vibrating leverv connectedto said actuator, and means for detaining the fingerpiece in either actuator-locking tor actuatorreleasing position.

18. In a typewriting machine, the combination with a carriage,- of a spring to drive the carriage, a gear driven by said spring, a pinion meshing with said gear, ribbon-winding devices operated by said pinion a rock shaft (as (37) having means to separate the pinion from the gear, a finger-piece to turn the rock shaft, ribbon-vibrating mechanism, and means connected to said rock shaft to silence the ribbon-vibrating mechanism.

19. In a typewriting machine, the combination with a carriage, of a spring to drive the carriage, a gear driven by said spring, a pinionmeshing with said gear, ribbon-winding devices operated by said pinion, arock shaft (as 67) having means to separate the pinion from the gear, a finger-piece to turn the rock shaft, a universal bar device reciprocatcd at the key strokes, an actuator loose upon said universal bar device, a ribbon-vibrator connected tovsaid actuator, a look upon said universal bar device to cause said actuator normally to operate the vibrator, and means connected to said rock shaft to release said lock.

20. In a. typewriting machine, the combination with a carriage, of a spring to drive the carriage, a gear driven by said spring, a pinion meshing with said gear, ribbonwinding devices operated by said pinion, a rock shaft (as 67) having means to separate the pinion from the gear, a finger p1ece to turn the rock-shaft, a universal bar device reciprocated' at the key strokes, an actuator loose upon said universal bar device, a ribbon-vibrator connected to said actuator, a lock upon said universal bar device to cause said actuator normally to operate the vibrator, and means connected to said rock bra'ting device engaged by said actuator, a

shaft to release said lock, said lock being in operable by said spring, a ribbon-vibrating mechanism operable by a set of type keys, and a key connected to means to silence the ribbon vibrator and the ribbon-winding means, devices to release the carriage from the control of the escapement mechanism,

and means connected to the carriage-releasing device to silence the ribbon-Winding means.

2!). In a typewriting machine, the combinatioir \vith ribbon-vibrating means operated at the key strokes and devices to silence said vibrating means. of a carriage, an escapcment mechanism therefor, carriage-releasing devices, a spring to propel the car riage, a ribbon-feeding mechanism driven by said spring, a key connected to devices to together with the vibrating means, by operating said key.

30. In a typewritingmachine, the combination with a carriage, escapement mechanism therefor, a key to release the carriage and a spring to propel the carriage, of ribbon- Winding devices operated by said spring, a

ribbon vibrator operating at the key strokes, a second key, said second key mounted on the framework of the machine, means operable by either of said keys, to silence said ribbon-winding devices, means operable by the second key to silence the ribbon-vibrator,

and means to detain the ribbon-Winding devices and the ribbon-vibrator in silenced condition.

31. The combination with a ribbon spool, of a driving shaftfor the spool, said shaft shiftable endwise to become connected to the spool, a'worm upon said shaft, a tum bler, a spring to mor said tumbler into ejn gagement'with the worm, a ribbon released latch normally restraining said tumbler, a Second latch to detain the tumbler in engagement with the worm, and means upon the shaft called into action at the endwise movement thereof for releasing the second latch and forcing said tumbler away from said worm.

The coml'iination with a ribbon spool, of a driving shaft for the spool, said shaft shiftable to become connected to the spool,'

tivo normally disengaged shaft-controlling members, one upon the shaft and one upon the framework of the machine, means to effect engagement of said shaft-controlling members, a latch to maintain such engage- L t memv during the shitting of the shaft, and

means to release said latch and separate said feed- 3 feed of the ribbon, and a latch to maintain I of a driving shaft for the spool, said shaft shiftable to become connected to the spool, two normally disengaged sliaft-coi'itrolling l members. a normally restrained spring tending to effect engagement of said shaft-con- I trolling members, ribbon-controlled means for releasing said spring, a latch to maintain engagement of the shaft-controlling members during the shifting of the shaft, and means to release said latch and separate said shaft-controlling members.

34:. The combination with a ribbon spool, of spool-driving shaft having a worm, a

\vorm, a spring tending to eiigzige'the tumbler and the worm. said spring normally release the spring, means operated by said tumbler and vrorm to eflect reversal of the engagement of the tumbler and worm.

:55. The combination with a ribbon spool, 1 of a spool-driving shaft having a Worm, a r tumbler, means tending constantly to effect I worm, means normally preventing such engagement,- means controlled by the ribbon to said tumbler and \vorii'i to etl'ect reversal of l the feed of the ril boii,'and a, latch to maintain engagement of the tumbler and worm.

3G. The combination with a ribbon spool, of a spool-driving shaft, two cooperative devices to effect the reversal of the ribbon feed, one of said devices upon the shaft and the other upon the framework, means normally tending to effect engagement of said cooperative members, a ribbon released latch to restrain such engagement, and means upon saittshaft to effect separation of said cooperative devices to an extent to enable said latch to become effective.

37. The combination with a ribbon spool, of a spool-driving shaft, two cooperative devices to effect the reversal of the ribbon feed, one of said devices upon the shaft and the other upon the fran'iework, means normally tending to effect engagement of said coopen ative incn'ibers, a latch normally restraining such engagement, ribbon-controlled means to release said latch, a second latch to hold said cooperative devices together during the feed-reversing operation, and means upon saidshaftto release the second latch and effect separation of said cooperative devices to an extent toenable the first latch to become effective. 0 v

38. The combination of a' ribbon-spool driving-shaft, a Worm upon said shaft, a tumbler normally tending to enga e said Worm, a latch to restrain said tumb er, ribhon-controlled means to, release said latch, said Worm and tumbler cooperative to efl'ect maintaining engagement of, the Worm and engagement between the tumbler and the tumbler normally disconnected from said permit such engagement, means operated by reversal of the ribbon feed, a second latch wheels tumbler, and e fixed to saicl Worm to engage and ii "i the second latch at the coin-- .worm, means normally preventing; such en gageinenl, means controlled by the ribbon to permit. such engagement, means operated by said tiunhler and. Worm to effect reversal oi the feed of the ribbon, latch to inainfeaiu engagement of the :un'ibler and means to release sale-1 latch.

e0. The combination Willi 2. ribbon-spool,

worm, and

of e. spool-driving shall, a Worm rotating therewith, a "tumbler, riobon-coiielrollenl means to cause the Worm. and hiniblcr co co operate, means operated by said tumbler and WOllll lo eliec't reversal of the fecal oi? the ribbon, and a latch to maintain engage ment of the tumbler and WOllffl.

4:1, The ccinbinalion Will/ll a rib: oh-soool, of a spool ilriving shalt, a r-n1 rotating therewith, a tumbler, ribboni:onlrolle(l means to cause the worm and lo ibler to cooperale, means operated by sairl tumbler and worm to effect reversal of the fecal the ribbon a latch to inainlain engagenienc of the tumbler and worm, and means release said latch.

42. The combination of ribbon-spool driving-shaft, a Worm con eclecl to saicl shaft, a tumbler normally tending to engage said worm, a latch to restrain sane. tumbler, ribbon-controlled means to release said latch, said worm and tumbler cooperstive to effect reversal of the ribbon feed, and cam con nected with said Worm to engage said innibler to restore it to the control of the first latch. 1

43. In a sypem-ising machine, the combinalion Willi a ribbon-spool shaft having a gear, 01 a driving-shalt shiflable enclwise and having a gear to shift into and out of mesh with said gear, a worm upon said'rlriv ing-shai'lz, a rock-shaft along-side of the spoolshaft and carrying a tumbler, a spring tending to swing said tumbler into mesh with said worm, e latch to prevent ssid rock shaft and tumbler from being swung by saicl spring, and ribbon-contr lled means to release said latch.

14. In a lvypewriting machine, the combination with a ribbon spool shaft having a gear, of a drivingehafl; shiftable end- Wise and having a gear .to shift into anl out of mesh Wt-h said gear, a Worm upon said. driving-shaft, eroclz-shalit alongside of spoolshaft and carrying s tumbler, 9. spring tending to swing seicl tumbler into mesh with said worm, e letch to prevent said rock shaft and tumbler being swing l 3; said pring, a foil or ,reviclecl upon the coils o" ribbon, and having means to release in lalch -when he spool is empty.

e5. ln a typeuriting machine, the combi .al'ion with a ribbon. spool shafthaving gear, of a drivingshais shifteble enclwise l, a lo shill inio anal out of n .lh said gear, s Worm upon sci-cl (lrivr l l; along. spool- "ng inzrbler, a. spring lentio a -ng; said tumbler inlo mesh. Willi )Elll, a lailch lie ,ven said shaic and Llllllblfil' from being swung by said u .l (oh, a secont atch pivoted. upon said to fixture. and maintain bier in mesh v2" e n, and o relez c said. se i a: the on'oil; emlivise shiif' movei e116 men-e oi? lhe shalt.

so. In lypewriting machine, the coinbinalion of a ribboinspool and driving means therefor, of n follower mounted to ro- Willi she spool and to .resi; upon the as of the coils of ribbon, o si lionar am in (no path of a part of said follower lo separate the follower from said eelgcs interinillently, and iibbon-ieerl r versing devices called lino action by said follower when. the coils of ribbon against which it bears are paid oil from th spool.

4-7. a lypewriting machine, the con1- ,insticn with a shaft and means to drive ;he some, of a follower mounted upon said car? and. detachable from the shaft and the spool, and ribboufeecl reversing devices called into action by said follower when the coils of ribbon against which it paid, 01? from. she spool.

l8. ln s typen'riting; machine, the combination. of s. ribbon spool, means to rotale the SIMDQ, a follower mounted to rotate with the spool and bear against the edges of the coils of ribbon, (lepenrlent upon the rotation of the spool to separate the in} lower intermittently f om lthe coils of rilo bon, called into action by said'follovver when the coils oz? ribbon against which n hears paid of from the spool.

4,9. In typewriting mechinaze bination of a ribbon spool, mesnsio so the same, a follower mounted. so-r-ote'ee with.

coils of ribbon, and ribbon-fecal reversing devices called into action by sairl follower when the coils ofribbon against which it bears arepeirl from thespool.

50. in o 'lypewrieing machine, the com bllih'illOIl of s ribbon spool, means rotate lhe same, follower mounted to rotate Willi. lzlie 1 xgeinst the edges the b0n-conl'ro ed 1119, s lo relea and ribbon-iced wreversing devices the spool find bear against the edges oi. she

:cllower, the latter constructed to bear. gsinsl the edges of the coils of I1bl)Ol1'O11-.

rs are coils of ribbon, said follower tending to enter the spool, a lever to interceptsaid fol lower when the latter enters the spool, a latch released by said lever, and cooperative ribbon-feed reversing devices normally restrained from cooperation by means of said latch.

51. In a typewriting machine, the combination with a shaft and means to drive the same, of a follower mounted upon said shaft, a ribbon spool also mounted upon said shaft and detachable from the shaft and follower, the latter' constructed to bear against the edges of the coils of ribbon on the spool, a latch releasable by said follower when. the coils of ribbon against whiclr the follower bears are paid off from the spool, and ribbon-feed reversing devices tending normally to cooperate, and normally retained by said latch.

52. In a typewriting machine, the combination of a ribbon-spool and driving means therefor, of a follower mounted to rotate with the spool and to rest upon the edges of the coils of ribbon, a stationary cam in the path of a part of said follower to separate the follower from said edges intermittently, and ribbon-feed reversing devices called into action by said follower when the coils of ribbon against which it bears are paid off from the spool, said spool detachable from said driving means and said follower. v

53. The combination with a spool and a ribbon-winding mechanism, of a follower to ride upon the edges of the coils of ribbon and mounted to rotate with the spool, an interponent in the path of said follower to be moved thereby when the spool is empty, a latch releasable by said interponent, a rock-shaft having an arm carrying said latch, a spring to turn said arm when the latch is released by said interponent, a tumbler carried by said rock-shaft, and a main driving-shaft endw se shiftable and having a worm engageable by said tumbler when the rock-shaft is'turned by said spring.

54. The combination with a spool and a ribbon-winding mechanism, of a follower to ride upon the edges of the coils of ribbon and mounted to rotate with the spool, an interponent in the path of said follower to be moved thereby when the spool is empty,

a latch releasable by said interponent, a rockshaft having an arm carrying said latch, a spring to turn said arm when the latch is released by said interponent, a tumbler carried by said rock-shaft, a main driving-shaft endwise shiftable and having a worm engageable by said tumbler when the rock: shaft is turned by said spring, a second latch to maintain engagement of said worm and finger to cause the driving shaft to shift endwise, and a cam upon the driving shaft to release the second latch and turn said rock-shaftback to normal position to be redetained by the first latch.

55. The combination with a spool and a ribbon-winding mechanism, of a follower to ride upon the edges of the coils of ribbon and mounted to rotate with the spool, an

interponent in the path of said follower to be moved thereby when the spool is empty, a latch releasable by said interponent,a rockshaft having an arm carrying said latch, a spring to turn said arm when the latch is released by said interponent, a tumbler carried by said rock-shaft, and a main drivingshaft endwise shiftable and having a worm engageable by said tumbler when the rockshaft is turned by said spring; a stationary cam being provided in the path of said follower, to withdraw the same from the spool at each revolution.

56. In a typewriting machine, the combination with a winding shaft, of a spool detachably mounted thereon and constructed so that it may be mounted either side up upon said shaft, a follower mounted outside of the spool to rotate with the shaft and to bear against the edges of the ribbon coils, the flanges of the spool having openings through which said follower may pass, and ribbonreversing devices actuable by said follower when the coils are paid elf from the spool.

57. In a typewriting machine, the combination with a winding shaft, of a spool detaehably mounted thereon and constructed so that it may be mounted either side up upon said shaft, a follower mounted outside of the spool to rotate with the shaft and to bear against the edges of the ribbon coils, the flanges of the spool having openings through which said follower may pass, and ribbon-reversing devices actuable by said follower when the coils are paid off from the spool; means being provided to withdraw the follower from the coils repeatedly during the winding and unwinding of the ribbon from the spool.

W'ALTER E. BARNARD.

l/Vitnesses:

i W. M. BYORKMAN,

LYMAN D. Bnooorrron.

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