US904316A - Type-writer ribbon-feed. - Google Patents

Description

L. P. DISS. TYPE WRITER RIBBON FEED. APPLICATION FILED NOV. 14, 1907.

WFINESSES: QM 6*. W12

INVENTOR 5 Q J ,M. iiwfl.

ATTORNEYS snares ,sisl

Letters Est-ens. Patented New". 1'3, 1908.

Application filed November 1 E367. Serial its. $02,663.

To all whom it may concern: I

Be it known that I, LOUIS P. D es. Ihon, in the county of Herkii'ner and Sta e New York, have invented certain new and useful improvements in Type-W er Rihbz'm Feeds: and e h reh}; declare that the foisowi 1 a. a1, and exact. de scription L wh trill enabie others skilled in t to which it appertains to make same reference being to the arr- A ng Wings. to the letters of reference marks thereon, which form part. this specific T e object of in? present lllVQZlUOH is to provide an. imp= ribbon feeding in anisrn for type ing machines, which is simple and eiiicient in I operation and arranged to automatically reverse the feed of the ribbon.

Fi 'iire 1 shows a partial sectional View of the .rame of the typewriter machine with my improved mechanism in position therein. Fig. .2 is a plan view of part of a type- -writer machine with my improved mechanism introduced therein. Fig. 3 is a cross sectional view through one of the spools constituting 5 portion of the mechanism, this section heing talreh at angles to the section shown in Fig. l. Flg. 4 is an enlarged detail showing features of the device, in connection with a section of a portion of the much of z 3* is as is tosses sary to illustrs; n.

Referri te th-e d. is usually terms-t p oist-s per portion oi the IL oi the machine. In.

he or opposite corners of the top of the mac top plate a there provii dep es 'b-b adapted to receive :Lnr 1 of the mechanism. lrnmezi cups Z) are located the ribbon spec the seine? sing: mounted on e ing' sgindie is the cup 5 and projecting we lly. the lower end er the sleeve (Z there is pro- "v'ided e gear ninicn f to the sleeve and thiis to the col so on the spindle a when newer is applied. In the plane of the pinion there is' provided the driving pinion g adapted to mesh there was. and mounted en the swinging upper end of the shaft h. The shaft hat its l'owfver 18 provided with a gear pinion i mesh ng with a gear pinion. j on the horizontal shaft The shaft 7'; is mounted in suitable fixed hearing the trains and provides bearings for the .illeting hanger Z having bearings which the shaft 71 is mounted. There is a shaft ll: on each side of the machine, and these shafts are provided at their rear ends with hevr. l gear pinions m me k; with beveled g'clu pinions 'il provided in the heck shaft 0. Power for driving the ribbon spools is applied to the shaft 0 and causes t e shafts is and ?a on the one side of the 1111 1e to rotate in unison with the similar shaft on the other side of the machine but in the op posite direction. The upper sfx'l'flgiilg ends of the hangers Z on the opposite sides of the machine are connected by a rod which spaces these hangers at such a distance that only one at a time of the gear piuions Q can engage the pinion 1" connected with the spool. This rod p is provided with a projection Q having preferably three teeth engaged by a spring click 1" mounted on the frame.

. Attached to the underside of the spool lay the depending arms 8, which are preferably connected at their upper ends by a semi-circulai bar It, is the semi-circular cam carrier 14-, This cam carrier u at its opposite extremities is hinged to the lower ends of arms s indicated by s. Thee-am provided with a cam or pted to engage with the f and preferably provided on face with three or fouri'c th of .pe to adapt them to me "1th i or" the pinion For con sition of the cam carrier 11. i with arm 2:: Whicl through a slotted opening 1; things of 1 upper end nst ' suihcientl under e x, to permitthe tee h of find their meshing pom ingthe c; I I-EGIL The coin and the gears quite sharp at the A l tate their entering.

PY: n25; 1E

The ribbon, of course, is attached at each end to the core of the. spools c and betweenthe spools passes in close position to the clined position shown in Fig. 4 where the cam will not engage with the gear pinion g as the spool revolves. When, however, the ribbonhas been unwound from a spool sufficiently to release the arm w, the cam carrier drops into its horizontal position, as shown in dotted lines in Fig. 4. Then as the spool c revolves under the influence of the ribbon being unwound therefrom, the cam v is brought around into position to engage with the gear g.- As the gear 9 is always driven, it furnishes its own power to force the cam a past itself and in so doing the gear 9 is forced over by the cam towards the gear f. In this operation the spring click rvride's out of one of the depressions in which the point engages and sufliciently over the high point so that the action of the spring click completes the movement and throws the gear 9 out of engagement with the cam v and into engagement with the'gear 7. By I reason of the connecting .rod p when the gear pinion g of one side of the machine is being thrown into engagement with the gear pinion f on that side, the one on the opposite side is thrown out making the spool on the opposite side of the machine then the free spool. Thefirst partial revolution of the empty spool causes the ribbon to bind the swinging end of the arm w against the core and elevates the cam carrier into its inoperative position. It is obvious-that the spool driving mechanism may be shifted manually at anytime, and for this purpose a knob or handle 2 is provided.

. While the teeth on the cam a are preferable, it is obvious that the teeth may be omitted and that other modifications and changes in the construction can be made without departing from the spirit of my invention.

by Letters Patent is:

1. The combination in a typewriter of a What I claim as new and desire to secure f ribbon spool having a driving pinion atshafts arranged at angles the secondary shaft arranged to engage the pinion on the spool and i'nean's' forshl'fting,

the 'osition of said pinion,-

ribbon spacebf the. 'spool,.- substantially as and connected for set orth.

substantially as 2. The combination in a typewriter of a a pair of ribbon spools each having pinions at tached, primary and secondary ,driving shafts for each spool arranged at angles and connected for rotation, a swinging hanger mounted on bearings concentric with the.

primary shaft and carrying the secondary shaftjin bearings therein, pinions on the swinging ends of said secondary shafts respectively arranged to engage the pinions of the spools respectively, a connection between the said hangers, and means for shifting the 1 position of said hangers to .engage'and dis-- engage the pinions carried" thereb'ywith the spool pinions, substantially as set forth,-

3. The combination in a typewriter ma-z chine of a ribbon spool havmg a, gear pinion attached, a movable driving pinion adapted to engage and disengage said spool" pinion, a movable cam carrier mounted on the spool and adapted .to swing around the said driving ,pinion, a cam mounted-on the, carrier andadapted to engage and move the driving gear pinion, and a controlling arm on the cam carrier projecting into the ribbon space of.,the spool, substantially as set forth.

4. The combination'in a typewriterma.- chine of a ribbon spool having a gear pinion attached, a movable driving pinion adapted to. engage and disengage said spool pinion, a movable cam carrier mounted 'on the spool by spring arms and adapted to swing around the said driving pini'on, a cam mounted on the carrier and adaptedto engage and move the driving gear pinion, and a controlling arm on the cam carrier projecting into the set forth. I

movable cam carrier mounted on the spool by means of spring arms and stops to limitthe movement of said spring arms, the cam '10s, 5. The, combination in a 'ty'pewriterma carrier arranged to swing around'the said] driving pinion, a cammounted on the carrier and adapted to engage and move the driving gear pinion, anda controlling arm on the cam carrier projecting into the ribbon space of the spool, substantially asset forth.-

, 6. Thecombination in a typewriter machine of a ribbon spool having a gear pinion attached, a movable driving pinion adapted arranged to swing around the said driving '7 pinion,- and a cam mounted, on the carrier and adapted tO-enga'ge and move thedriving under tension ;,aga'inst the stops to the free .ends of'which the-cam carrier is hinged and spool pinions respectively, amovable can ing gear pinion, and a controlling arm on the cam carrier projecting into the'ribbon space of the spool, substantially as set forth.

7 The combination in a typewriter machine of a pair of ribbon spools each having a gear pinion attached, movable driving pinions adapted to engage and disengage said carrier carried by each of said spools adapted to engage the driving pinion and shift the position of the same, a connection betWeen'the driving pinions of each spool spacing the pinions so that only one at a time can be in driving engagement, a toothon said' connection, and a spring CllCk for securing the position of the pinions and assisting their movement, substantially as set forth.

8. The combination in a'typewriter machine ofa pair of ribbon spools, each having a gear pinion attached, movable driving pinions adapted to engage and be disengaged from said spool pinions respectively, swinghangers ha'vin bearings carrying the shaftsof said driving pinions respectively,

a connection between the hangers of sa1dshafts arranged to space the pinions so thatonly one shall be in driving position at a time, cams mounted on the spools and adapted to throw in said driving pinions respectively, and a spring click assisting the movementof throwing in the driving pinion,-substantially as set forth.

9. In a typewriting machine a pair of ribbon spools, a pair 0 shiftable driving pinionsfor said spools adapted to alternately

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