US1065050A - Type-writer carriage-actuating mechanism. - Google Patents

Description

W. J. KAUFFMAN. TYPE WRITER CARRIAGE AGTUATING MECHANISM.

APPLICATION TILED JULY 7,1906. 1,065,050, Patented June 17, 1913.

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INVENTOR W. J. KAUFFMLAi-L TYPE WRITER CARRIAGE AOTUATING MECHANISM.

APPLIGATION FILED JULY 7,1906

1,()65,050, Patented June 17,1913.

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WITNESSES INVEN'FOR W. KAUPPMAN. PE WRITER CARRIAGE AOTUATING MECHANISM.

APPLICATION FILED JULY 7.1906

Patented June 17,1913.

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WTNESSES INVENTOR ;engag a pin 7 projecting from the mck 3 weight UEYEEQED STATES PATENT O FICE,

WEELIAM 'J} KAi-UFFMAN,

TiiA E WR-ITEB CARQA EAGTUATING MAE of Cicveiand ha-ve mwrnted a e? Carnage-[lemming a mi em die scription, refex to the companymg drawmg pari' of this side mi he in h. max [j ion on the line E -H a roar a 5 i; a 13-00 of file 1 )Tlnlnislh, tai via? 1' phsae' snmving t: i093; Fig 7 with i l.

My invent fur abtuating; and isde and reiiahie z: aloe) to prpv r. fag A moving the! caning! mechanism to aliow easyguatat platen carrier from the 0a.:iage m e and to provide improvedaneam f0? lwz'im' platen carrisfiat thf nd the for releasing e v aiisw in. f asters to he vritzen,

It .filfilhlfconsistti-ms hereinafter In the drawings, repzesei V of the plateh fcfnfrier having pivoie? v rear the rack 3. This rack is pmci icd Nit. forwardly projecting lugs 4; :ziFih thereto and having pivot pins f}? 42mm carrier. 6/ swings on the Pivots 4*" by a finger lever pivoted at 5 "10 the end of the piaten 532w tier and having a laierai arm 6 arranged to ovel ihe end of Lhe'arm 6. This swinging 0f ih rack bar releases it from ifs pininn, and this GUOWS the carriage to be moved freely in EithQI direfilnn. the

5B6 rack is hardly sufitient 10. ii 9 normal position when releasefi '1 ii-i532 sf Ref/ 375 Eatent OF cznvrsnknn Eaten 9d Jun a 3%;325,11s; I

swings the pawl -frame. When a key lever is depressed the universal bar bears. upon the rear arm 26 of the three-armed lever and swings this lever independently of the spacin lever. I l

hen the spacin lever or a key lever is depressed the pawl frame 'is tilted backwardly, thus detaching the shifting pawl 16, from a tooth and causing the fixed pawl 14 to engage the same tooth and act as a detainer. During this back movement the shifting pawl 16 is released from the ratchet tooth and is drawn backward by the spring 20 rotating on the lower pin 19 into a position to engage the next tooth. On release of the spacing lever or the key lever, the movable pawl is moved by the power of the carriage actuating springwhich swings the movable pawl against the action of the spring 20 and moves the platen carrier the distance of one space, bringing the pawl 16 into the position shown in Fig. 4. If the platen carriage is moved backward the shifting pawl is first moved on the lower pin 19 until the limitof its movement of the slot 17 is taken upwhen the pawl will be swung on the up-- per pin 19 a distance great enough to allow the teeth 13 to pass the pawl. The spring barrel and tape connection for actuating the carriage may be of any desirable type.

To lock the carriage-at the end of the line I provide a two-armed lever having anupper arm 38 and a lower arm 3-9; this lever being pivoted on thecarriage bed. The upper arm is in the path of the marginal stop 40 which is secured to the swinging rod 3 on the platen carrier, while the lower arm is pivotally connected with the slide 41 loosely mounted on the lower side of the carriage bed. This side is normally drawn in one direction by the spring 42, is guided by screws extending through slots 43' therein, said slide having pivoted thereon a rockshaft 44 with a rod 45 projecting therefrom and extending underthe carriage bed to its rear. The rear end of this rod is normally held against the shoulder 46 of a bent lever 47 pivoted to the frame at 48. 3 This lever 47 is provided with a forwardly projecting pin 49 which moves into the path of the pawl-carrying frame 15 when the lever is tilted upwardly. Consequently, when the marginal stop engages the lever 38, the rearwardly projecting rod pressing on the shoulder 46 of the rear lever 47 will move the pin 49 into the path of the upper pin 19 on the pawl frame 15 and thus prevent further feedingof the carriage. Thisrear projecting rod 45 may then be lifted to disengage the lock by a finger lever 50 pivoted to the franc of the machine at 50 and having a the rod 45 strikes a pin or shoulder 51 projecting from the rear lever 47 which again swings the lever and locks the feed.

To prevent excessive strain on the stoplever 47 when the rack is swung to disengage it from the pinion, I provide the lever 52 pivoted to the rear ortion of the carriage bed extending over t e top'of the pinion and havinga depending end 53 which extends under the stop-actuating rod 45. This lever 52 carries a small roller 54 which travels on the upper side of the rack 3. lVhenever the rack is tilted upwardly to disengage it from the pinion, this lever will engage the stop actuating rod 45 and carry it into in'opera; tive position, thus preventing a strain or pressure being brought upon itwh-ich might bend it out at the end of the carriage travel.

To draw the'stop lever 47 to normal position when released I provide the spring 55 which will swing this lever and return the parts to their normal position.

The advantages of my invention result from the small number of parts and their efficient action; the carriage is locked at the end of the line and may be readily released for the writing of further characters, after which it is again locked until the carriage is returned; the tilting of the'rack affords a simple and easy means for cutting the connections of the latter spacing mechanism so thatthe carriage may be moved by-hand in either direction; the pawl escapement is simple and positive'in its operation.

Variations may bg made in the form and arrangement of the 'parts without departing from my invention.

I claim 1. In a typewriter, 'a pair of spacing pawls carried by a tilting frame, means to actuatesaid frame, a lever for locking the tilting frame at the end of the line, said lever having a plurality of projections, a

pivoted rod for engaging the projections to shift the locking lever to lock the frame, the rod being arranged to engage the first projection to lock the frame, means to rock said rod to disengage it from the first projection to release the frame, said rod being arranged to engage the second projection when moved in a predetermined distance to again lock the frame; substantially as described.

2. In a typewriter, a pair of spacing pawls carried by a tilting frame, means to actuate said frame, a lever for locking the tilting frame, said lever having a plurality of stops, a pivoted rod for engaging the stops to shift the locking lever to lock the tilting frame, said rod being arranged to be rotated to clear the first stop to release the frame, and arranged to engage the next stop to lock the carriage after it has again been operated; substantially as described.

3. Ina typewriter, a tilting frame, spacing pawls carried thereby, a pivoted lever connected thereto, a hook on the end of said lever, and a spacing lever having a hooked end arranged to engage the hook on the pivoted lever, to actuate the tilting frame; substantially as described.

4. In a typewriter, a tilting frame, a fixed pawl carried thereby, a second pawl pivorally mounted at both ends to the first pawl, a spacing lever, operating connection between the spacing lever and the tilting frame. and a universal key-operated bar arranged to operate said connections; substantially as described.

In a typewriter, a tilting frame, a pawl rigidly secured thereto, a shifting fulcrum pawl pivoted to the rigid pawl and having a fulcrum at each end, a spacing lever, and connections operated thereby and arranged to actuate the tilting frame; substantially as described.

6. In a typewriter, a tilting frame, a pawl rigidly secured thereto, a spring actuated 'pawl pivoted at both ends to the rigid pawl,

and arranged to rotate on both pivots at different times, and means to actuate the tilting frame; substantially as described.

T. In a typewriter, a tilting frame having a rigid and a movable pawl secured thereto, saidniovable pawl having two fulcrums, means to swing the last pawl on either fulcrum at different times, and means to actuate the tilting frame; substantially as described.

H. In a typewriter, a platen carrier, :1 locking lever, a spring actuated slide, a swinging rod mounted on the slide and arranged to actuate the locking lever, and means to move the slide to lock the spacing pawls from movement; substantially as described.

9. In a typewriter, a platen actuated lever, a spring actuated slide connected to said lever, a pivoted rod carried by the slide. and a lever arranged to W; operated by the rod to lock the spacing pawls from movement; substantially as described.

10. In a typewriter, a tilting frame, a pair of pawls carried by the frame, a stop actuating slide, a platen operated lever pivoted to said slide arranged to engage the tilting frame, and a releasing lever pivoted to the frame of the machine having a projection extending beneath the stop actuating slide; substantially as described.

11. In a typewriter, a platen carrier, having a movable rack, a pinion engaging the rack, a tilting frame, a pair of pawls carried by the frame, a locking device for the tilting frame, said device having a stop actuating slide, and means for disengaging the stop from the slide when the rack is moved; substantially as described.

12. In a typewriter, a vertically swinging rack, a pinion engaging the rack, pawl mechanism for the pinion, a stop, a stop actuating slide arranged to lock the pawl mechanism, a rod pivoted on the slide and arranged to actuate the stop, and means arranged to move the pivoted rod to inoperative position when the rack is raised; substantially as described.

13. In a typewriter, a platen operatedlever pivoted to the frame of the machine, a slide connected thereto, a spring connected to the slide, a rock shaft pivoted to the slide and having a projecting rod, and means operated by the projecting rod to be there by moved into the path of a spacing pawl mechanism; substantially as described.

In testimony whereof, I have hereunto set my hand.

VILLIAM J. KAUFFMAN. Witnesses:

BYRON R. lVa'rsoN, GEO. M. KAUFFMAN.

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