US864601A - Carriage feeding and controlling device. - Google Patents

Description

No. 864,601. PATENTED AUG. 27, 190'7. G. C. BLIGKENSDERPER.

CARRIAGE FEEDING AND CONTROLLING DEVICE.

APPLICATION FILED NOV. 16, 1903.

2 SHEETS-SHEET 1.

No. 864,601. PATENTED AUG. 2'7, 1907.

D G. C. BLIGKENSDERFER.

CARRIAGE PEEDING AND GONTROLLING DEVICE.

APPLICATION FILEDKNOV.16,1903.

2 SHEETS-SHEET 2 UNITED srnrns PATENT OFFICE.

GEORGE BLICKENSDERFER, OF STAMFORD, CONNECTICUT.

CARRIAGE FEEDIG AND CONTROLLING DEVICE.

Specification of Letters Patent.

Patented Aug. 27, 1 90'7.

Application filed November 16, 1903. Serial No. 181,265.

To all whom it may concern:

Be it known that I, GEORGE C..BLrcKsNsnERFER, a citizen of the United States, residing at Stamford, county of Fairfield, and State of Connecticut, have in -vented certain new and useful Improvements in Carriage Feeding and Controlling Devices, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

This invention relates to certain improvements in carriage feeding and controlling mechanism for typewriting machines. i

In typewriting machines, and particularly in those in which the various movements are producedby the power mechanism, it is necessary, because of therapdity with which the type mechanism operates, that the feeding movements of the carriage be also effected with great rapidity. And lit is furthermore desirable that the feeding movements be absolutely positive inA order that the carriage may position the paper with absolute accuracy to receive the impressions from the type mechanism. It is also desirable, particularly in power operated machines, and especially those inwhich the vcarriage is returned by power operated devices, that the carriage be free or disconnected from the feeding mechanism, except at the time when the feeding movement is occurring, so that the position of the carriage may be readily shifted without throwing 'the feeding mechanism out of operative relation therewith, and at the same completes its movement.

time it is desirable that when the feeding mechanism has engaged the carriage, in order to produce the feeding movement, it shall retain it under absolute control, so that the carriage maybe moved and positively stopped with absolute. precision, thus enabling` the impressions ofthe type mechanism to be properly positioned on the paper, and at the same time from preventing any fault in the impression, due to a quivering movement of the carriage, or to over-feeding or rebound.

In an application filed by me on December', 1902, Serial N o. 134,144, there is described and claimed a feeding mechanism for typewriting machines, compris v ing suitable engaging devices, and in which the carriage is free to move, except when .under the control of the feed mechanism, the feeding mechanism operating inmachinesl which while particularly adapted for power operated machines may be useful in machines other than those operated by power, and which shallbe sirnple, cheap to construct, and which shall be effective and positive in its operation. i

A further object of the invention is to'produce an improved eeding mechanism for typewriting machines, which While particularly adapted for power operated machines may be useful in machines other than those operated by power, which will produce a positive feeding movement of the carriage, and in which the lengthA of feeding movement shall be'positively determined, the carriage being free of the feeding mechanism except when the feeding movement is occurring and --in which the use of checking or holding pawls or similar devices is unnecessary. l l

With these and other objects in view, the invention consists in certain constructions, and in certain parts, improvements, and combinations as will be hereinafter described and then more particularly pointedout in the claims hereunto appended.

Referring to the drawings in which like characters of reference indicate the same parta-Figure 1 illustrates, in side elevation and partly in section, one form ofa typewrit'ing machine embodying the invention; Fig'. 2 is a rear elevation, partly insection, of so muclr'of the corn struction illustrated in Fig. l as' is necessary to understanding the invention, the position of the observer be' ing indicated by the arrow 2 in Fig. 1;-Fig. 3' is a plan view, partly in section', of a part of the construction illustrated in Fig. 2 FigA' is a detailed perspective view ,of the carriage returning mechanism, this mechanism being located on the opposite side of the machineto that illustrated in Fig. l.;4 Figs. 5,- 6 and 7 are detail views. i

The machine which has been selected to illustrate the invention is a power driven Wheel machine ofthe well known Blickensderfer type. i I't is to be under- Vstood, however, that ythe invention is not'lconfine'd to power driven machines nor to wheel machines, and .that it may be embodied in constructions which differ widely from theparticularone illustrated inthe drawings.

Referring to the drawings which illustrate one ernbodiment of the invention, the frame in which the parts are mounted may" be of any suitable form andconstructed in any suitable manner. As shown, the frame embodies a base plateI 1', mounted on suitable feet 2, i, j 'and a topplate 3 which is supported above the base in any suitable manner.

Whenthe invention is embodied in a power driven machine, the means by which the power is applied for operating the machine may be ofany suitable descrip tion. Preferably, howeverit will be simiiar to the means disclosed in the patent granted to George C.

.Blickensderfer, No. 717,732, dated January 6, 41903.

In the preferred form of the construction, and as shown, the power mechanism comprises a constantly running power shaft 5, provided witll a driving gear or pinioll (3, said gear or pinion lnesllingwith gear 10, mounted on a short shaft 9, sllitably supported ill the machine frame and ill a blacket 7 extending therefl'oln.

In the construction sllown, the mechanism tllrough which the power mechanism produces the various nlovelllellts incident to the printing operations, is normally stationary and is thrown into and out of operative relation witll the power mechanism at the proper time. To effect tllis in the maclline shown, the gear 10 is secured to a toothed plate 11 which forlns one of the pal'ts of a clutcll, the coperating member of the clutch consisting of a toothed plate 15, mounted on a hub through which the shaft 9 passes, the hub being loose on the shaft. When the cllltcll is engaged it serves to operate the various parts of the mechallisln, the operations, sov

far as are necessary to the understanding of the presellt illvelltioll, being nlore specifically hereinafter referred to.

The engagement of the clutch members is controlled by means of a pivoted controller lever 25, carrying a caln which sel'ves to operate the cllltcll members when the level' is ill one position, said caln beillg inoperative when the lever is ill another position, at which time va sllitable spring 16 forces the lnelllbel's of the clutch into engagement.

The controller lever is operated by means of a slide bal' 29, having a hooked end 3() which has in tul'n a recess 31, said recess engaging witll an extension 32 on the controller lever, the slide bar having a spl'ing 33 secured thereto which serves at the proper times to move it towal'd the clutcll` The construction is sllcll that the slide bar is disengaged fl'om the controller as soon as the members of the clutch al'e engaged, and the controller, therefol'e'lnoves illto position so as to separate the parts of the clutch as soon as the sllaft 9 has conlpleted a l'evolutioll.

'lhe operations of the type mechanism are effected by means of a driver wllicll, as shown, consists of a cam 18, connected to the toothed plate 15 ill sllcll a way that the plate may be moved to disengage the parts of the clutcll without disengagillg it fl'olll the driver. This drivel' operates the actuating lllecllanisln of the machine through a slide bal' 45, the said bar being connected to all arln 5l. extending upwards froln the shaft 50, sllpported in the frame of the machine, this shaft 50 serving, through suitable connections, not necessary to describe to operate the type mechanism, herein indicated by a wheel,

The disengagement of the slide bar 29, before referred to, from the controller lever, is effected by means of a cam 35 which is connected to the driver 18, and which operates on all extension of the slide bal', The mechanism llel'einbefol'e briefly referred to, is fully described in the patent referred to, and reference is made to said patent for a detailed description alld disclosure thereof.

The carriage feeding mechanism will be of such a character that the cal'riage is absolutely llnder the control of the feed devices at the time when it is being moved, bllt is fl'ee to be moved in either dilection at other times. lhe collstructioll by which the carriage is fed and at the same time is left free to 'lnove in either direction when itis not being fed, lnay be widely varied, and will be varied according to the type of the lnacllinc and the particular feeding mechanism employed. In

the construction illustrated, the carriage may be given a step by step advancing movement, and also lnay be given a continuous movement in either direction, these movements being effected by proper connections to the power mechanism, but the carriage is also free to be moved in any other manner, as, for instance, by the hand of the operator, when it is not under the control of the mechanism which gives it the step by step movement or the continuous movement.

The mechanism for giving the carriage the colltinuolls movement may be of any suitable description. As shown, the carriage is provided Witll a rack 167 which is engaged by a pinion 168, mounted on a vertical shaft 169, the pinion being in continuous engagelnellt with the rack. The shaft 169 is provided witll a gear wheel ',174 which is in mesh with two gears 175 alld 176, said shaft being loosely mounted ill the support or block 178. This block 178 is mounted so as to receive a pivotal movement by means hereinafter described. rlhe gear 176 has secured to it a friction wheel 179, and tlle gear 175 has secured to it a friction wheel 180, this Wheel 180 preferably being of less diameter than the wheel 179. These Wheels 1.79 and 180 are arranged so that they can be driven fl'oln the power mechanism, and to this elld the power shaft 5, before referred to, is provided with friction driving wheels 181 and 182, the wheel 181 being located so that it lnay be engaged by the ivheel 180, and thc wheel 182 so that it may be engaged by the wheel 179, the engagement between these pairs of wlleels being effected by giving the supporting block 178 a swinging movement. In the construction shown, this swil'lging movement is effected by two key levers 187 and 188, suitably pivoted -ill the frame, the key level' 187 being connected by means of a short tie-l'od 298 to an annular extension 299 of a projecting portion 183 of the block 178. Similal'ly the lever 188 is connected by a short tie-rod 390 to all extension 301 of the projecting portion 183 of the block. By depressing eitllel' key level', the block 178 will be given an angular movement, and either the Wheel 179 or the wheel 18() will be thrown into engagement With the Wheel 181 or the wheel 182, and the shaft 169 will be rotated ill either one direction or the other, as the case maybe, to lnove the carriage. This nlecllanisln for giving the carriage the continuous lllovelllellt is flllly described and the features of this mechanism alld the combination of it with a step by step advancing lnecllallisln are claimed in the application before referred to. The step by step advancing or fcedillg movement of the carriage may be effected by widely differing constructiolls. lll the constrllction sllown, a feeding lnelnbel' is employed which is normally out of feeding relation with the carriage, but which is given at the propel' times a positioning lllovelnent ol' a movement which carries it into feeding position, the lnelnber being' tl'lereafter given the feeding movement to effect the advance of the carriage one step.

The carriage will preferably be provided with a feeding device which cooperates with the feeding nlelnber and which lllay be of any suitable construction. As sllowll this feeding device consists of the rack 167, before referred to. llle form and construction of the feeding member may be varied within wide limits, as lnay the construction by which it is lnollnted and operated. Preferably, however, it will be constructed s has been indicated, the means for supporting the leverfmay be'widely varied, but in the preferred construction, and as shown, the lever will b e mounted on a movable supportfwhich, in the preferred construction, will consist of a rocking block 402, this block being secured to a stud 403, suitably mounted in a boss 404 extending from the machine frame. As shown, the outer end of the stud is cleft to provide arms or jaws 405, these arms or jaws serving to support a pivot v406 on which the lever 400 swings. In the operation of the specific mechanism, the rocking-block is moved to properly position the lever in engaging feeding relation with the carriage, after which the lever is given a swingving movement on its pivot to advance the carriage.

vas,

v The means by which the lever or pawl support is given its movement may be widelyvaried, and`will be variedaccording to the specific construction in which the invention is embodied. In the l.particular construction shown, there is provideda cam 407, this cam being mounted on a sleeve 408, the said sleeve being fast to the driver 1.8, before referred to, as supported 0n the short shaft 9. This cam is provided with a notch 409, as is clearly indicated in Fig. 1, the remaining part of the cam being concentric. .The block .402 has secured to it by means of a screw, or in any other manner, an arm 410, said arm carrying at its outer end the usual antifriction roll `411, saidroll being arranged to run on the circumference` of the cam; Irithe` preferred construction this arm 410 vwill be a'stiff spring `arm which will operate to Vinsure a positive engagement of the pawl or lever with theA rack on the carriage and at the saine time provide forwear and' for slight variations in the construction.v When, through the operation `of the mechanism hereinbefore referred to, the parts of the clutch l1. 15 are thrown into engagement, the

sleeve 408 revolves and the cam 407 makes a revolution. As the cam roll 411 passes out of the notch 409, the block 402 is rocked and .thelfeeding .member or lever 400 is positioned in engagement with the rack and is firmly held and locked there, the antifriction roller running on the circumference of the concentric portion of the cam. vWhen the cam has completed its revolution and the I notch 409 comes opposite the roller 411, the roller drops into the notch ,A this movement being preferably assisted 5 5 l by means of a spring `412, suitably connected to the frame of the machine and to an arm 412' fast on the Vstud 403 the arm and spring being shown in dotted lines in Fig. l. While this arm `and spring constitute a desirable adjunct `in insuring theretum movement of the b1ock,thoyfmay be omitted uif desired, or other means may be substituted for them.l

The means by ywhich the feeding member is given the feeding or advancing movement `may be widely varied. `Inthev construction shown, however, the cam 407 is providedwith an operating face 413 located on its side, andthe lever 400 is provided with a short inwardly projecting arm 414 which runs on a side face 413 of the cam. This sideface is preferably given a gradual rise, the cam face extending nearly around the circumference of the cam,` but as shown in Figs. 1 and 5, it begins a little distance Vbeyond one'side of the notch 409 and terminates in au abrupt shoulder 415, a little distance from the other side of the notch. In this construction it will beseen that as the cam 407 revolves as soon. as the antifriction roller 411 has passed out of the notch, at which time thelever 400 has been Caused to engage with the rack on the carriage the feeding movement of the carriage begins, due to the action of .the cam face 413 on the extension 414 Vof the lever.

When the extension 414reaches the shoulder 415, the feeding movement has been completed and the carl riage comes to a stop. The extension of the lever then drops off the shoulder 4l 5, this movement being, inthe construction shown, insured by the action of a spring 416 secured to the lever and' to a stud 417 fast on the machine frame. While the use of this spring 416 is desirable for insuring the quick and positive action of the parts, it might, under some circumstances, be omitted, or other'rneans might be substituted therefor.

Means' will preferably be provided for definitely limiting the forward feeding or`advan'cing'movement of the feeding member, and.preferably these means will coperate with the stepby step advancing agencies topositively lock the carriage attire time `when the feeding movement is completed, so aste prevent any rebound, over-feeding, or quivering of the carriage. While these means may bevariously constructed, this result may be simply and efficiently accomplished by means of a stop against which the feedingV member or lever strikes Vjust as its forward movement is completed. In the. construction shown, this stop consists of a screw 418 tappedinto the edge-ofthe top plate 3, the lever abutting against the inner end ofthe screw. By adjusting the screw Whichiis or may bc. provided with a suitable lock nut 419, the forward movement of the lever is positively limited or determined and caused to be coincident with the end of therise of the cam. It vwill be understood that atthe end of the feeding movement the lever is positively held between -the stop and the cam and locked against movement in either direction, and atthe same time is positively held locked to the carriage rack by means of the spring arm and the concentric portion'of the cam 407. There can, therefore, be no Vrebound or overffeefling of the carriage, and by reason of the locking action of the parts, any shake or quiver of the carriage is prevented, these results being highly desirable, particularly in rapidly operating power driven machines, though useful in machines of other types. Furthermore it will be seen that there is no necessity with a feeding mechanism of this character for employing the checking or holding pawls heretofore used. The feeding mechanism brings the carriage to an absolute ,stop and is then disengaged, after which the inertia of the carriage may .be depended upon to keep the carriage stationary, .the movement of any of the parts having no vtendency to in any way produce any movementof the carriage.

Furthermore it is also apparent that in the specific convstruction the various devices for operating the feeding i member make it what may be termed a four-'motion feed. That is to say, the feeding member has a motion toward the rack to engage therewith; a motion parallel with the movement of the rack and carriage to feed the carriage; a motion away from the rack when it is disengaged therefrom, and a returning motion.

When the carriage is returned after a complete line has been printed, whether by means of the power operated device, before referred to, or by hand, it is desirable that the distance through which the carriage is returned be positively determined, in order that the margin on the sheet being printed may be uniform. In the construction shown, this is effected by means of a suitably arranged stop which is mounted on the carriage. While the construction of this stop may be varied, and its point of attachment to the carriage may be varied, it will be preferably mounted on the rack 'lG7, before referred to. In the specific construction illustrated, this stop embodies a recessed block 422, the block being provided with a toothed portion 423, the teeth of which are arranged to engage the teeth of the rack. The recessed block is placed in position with its teeth engaging the teeth of the rack, and is then secured there by any suitable means. As shown, the securing means consist of a pivoted latch 424 which swings over the top of -the rack. Extending from the block 422 is an angular arm 425, said arm being preferably provided with a cushion block 426 which is arranged to strike, in the normal operation of the device, the edge oi the top plate 3.

It is frequently desirable in the operation of typewriting machines, to provide ior'a quick and predetermined change in the distance through which the carriage returns, as, for instance, when indenting or paragraphing. In the construction shown, this is effected by means oi a second stop which is mounted on the frame and arranged to be moved intovand out of operative relation with the stop before described. In the construction shown, this stop consists oi an arm 427 pivoted to the plate 3 at 428 and provided with a downwardly bent portion 429. For convenience in swinging this stop into and out of operative position, there is provided a slide 430 which is pivoted at 431 to the arm 427 and, as shown, this arm has a bayonet slot 430 which engages with a pin 432, mounted on the top plate-3. When the parts are in the position shown in Fig. 3, the stop 427 is in its inoperative position and is locked there, the pin 432 engaging the angular portieri oi the bayonet slot. When it is desired to throw the stop 427 into operative position, the slide is movedv sidewise slightly to disengage the pin from the angular portion of the slot, after which the slide is pushed in above the downwardly bent end of the arm 429 and is in position to be struck by the cushion block 426 of the adjustable stop on the rack.

'lhe carriage embodies suitable side rods 435, 436 which work between suitable supporting pulleys 437 in a manner Well understood, and it will also be understood that the carriage will also be provided with the usual platen 438, and will also have the other devices which are necessary or desirable to form a carriage for a typewriter, a description and illustration of these devices not being necessary to the illustration of the invention, and not being, therefore, incorporated in the present invention.

While the specific mechanism for carrying this invention into effect which has been hereinbefore described, constitutes the preferred embodiment of the invention, it will be understood that changes and variations may be made therein and that many other embodiments of the invention, differing widely from the one illustrated and described, are possible. The invention is not, therefore, to be limited to the specific construction hereinbefore described and illustrated in the accompanying drawings.

What is claimed iszi. in a typewriting machine, the combination with the carriage, of a feeding member, motor operated means for bringing it into feeding position and positively locking it to the carriage and for giving it a feeding movement While thus locked, substantially as described.

2. In a typewriling machine, the combination with the carriage having a feeding device, of a motor operated mechanism` a feeding member, means operated by the:

power mechanism for causing the feeding member to engage the feeding device on the carriage and for giving it: a posi 've feeding movement, and means for definitely limiting the feeding movement, substantially as described.

J.. in a typewriting machine, the combination with the carriage having a feeding device, of a motor operated mechanism, a feeding member, means operated by the power mechanism for causing the feeding member to engage the feeding device on the carriage and for giving it a positive feeding movement, and a stop for definitely limiting the feeding movement, substantially as described.

i. in a typewriting machine, the combination with the carri ge, of a pivoted feeding member, means for moving the feeding member to bring it into feeding position, and means for swingingr it on its pivot to give it the feeding movement, substantially as described.

in a typewriting machine, the combination with the carriage, of apivoted feeding member, means for moving the feeding member to bring it into feeding position, means for swinging it on its pivot to give it the feeding lnovement, and means for definitely limiting the feeding movement, substantially :is described.

(i, in a typewritng machine, the combination with the carriage, of a pivoted feeding member, a motor operated mechanism, means for moving the member to bring it into feeding position, and means operated by said mechanisln for giving it a movement about its pivot to effect thc feeding movement, substantially as described.

'i'. In :1 'fypewriting machine, the combination with the carriage, of a pivoted feeding member, a motor operated mechanism, means for moving the member to bring it into feeding position, means operated by said mechanism for giving it a movement about its pivot to effect the feeding movement, and means for definitely limiting the feeding movement, substantially as described.

8. in a typewriting machine, the combination with the carriage, of a pivoted feeding member, a motor operated mechanism, means for moving the member to bring ii' into feeding position, means operated by said mechanism for giving it a movement about its pivot to effect the feeding movement, and a stop for definitely limiting the feeding movement, substantially as described.

i). in a typewriting machine, the combination with the carriage. of a support, a feeding member mounted in the support, means for giving the supporta movement to bring the member into feeding position, and means for giving the member a movement with respect to the support to advance the carriage, substantially as described.

10. In a typewriting machine, the combination with the carriage, of a support, a feeding member mounted in the support, means for giving the support a movement to bring the member inio feeding position, means for giving the member a movement with respect to the support to advance the carriage, and means for definitely limiting the advancing movement. substantially as described.

11. In a typewriting machine, the combination with a carriage having a feeding device thereon, of a support, :i feeding member mounted in the support and arranged to positively engage the device on the carriage, means for giving the support a movement to bringr the member into feeding engagement position, means for givlngthe mem ber a movement with respect. to the support to advance the carriage, and means for definitely limiting 'the advancing'movement, substantially as described.

12. In a typewriting machine, the combination with a carriage having a feeding device, of a support,a feeding member pivoted in the support, and arranged to positively engage the device on the carriage, means for giving the support a movement to bring the member into engaging position, means for giving the member a movement on its pivot to advance the carriage, and means for definitely limiting the advancing movement, substantially as described.

13. In a typewriting machine, the combination with the carriage, of a support, a feeding member mounted in the support, a power mechanism, means operated by the power mechanism for giving the' support movement to bring the feeding member into feeding position and means operated by the power mechanism for giving the member 'a movement with respect to itssupport to feed the carriage, substantially as described.

14. In a typewriting machine, the 4combination with the carriage, of a support, a feeding member mounted in the support, a power mechanism, means operated by the power mechanism for giving the support' movement to bring the feeding member into feeding position, means operated by the power mechanism for giving tbe member a movement to'advance the carriage, and a stop for definitely limitingthe advancing movement, substantially as described.

i5. In a typewriting machine, the combination with a carriage, having' a feeding device, of a support, `a feedingl member mounted in the support and arranged to positively engage the device on the carriage, a power mechanism, means operated by the power mechanism for giving the support movement to bring the feeding member into oper- :ltive position, and means operated by the power mechanisln for giving the said member a 4movement to advance the carriage, substantially as described.

16. ln a typewriting machine, the combination with a carriage having a feeding device, of a support, a feeding member mounted in the support and arranged to positively engage the device on the carriage, a power mechanism, means operated by the power mechanism for giving the support movement to bring the feeding member into operative position, means operated by the power mechanism for giving said member a movement to advance the carriage, and a stop for` definitely limiting the advancing movement, substantially as described.

17. In a typewriting machine, the combination with a carriage having a feeding device, of a support, a feeding member pivoted in the support and arranged to positively engage the device on the carriage, a power mechanism, means operated by the power mechanism for giving the support a movement to cause the feeding member to engage the device on the carriage, and means operated by the power mechanism for giving the member a movement to advance the carriage, substantially as described 18. in a typewriting machine, the combination with a carriage having a feeding device, of a support, a feeding member pivoted in the support and arranged to positively engage the device on the carriage, a power mechanism, means operated by the power mechanism for giving' the support a movement to cause the feeding member to engage the device on the carriage, means operated by the power mechanism for giving the member a movement to advance the carriage, and a stop for definitely limiting thc advancing movement, substantially as described.

-10. In a typewriting machine, the combination with the carriage, of a` rocking support, a feeding member pivoted in the support, means for rocking the'support to bring the feeding member into feeding position, and means for swinging the member about its pivot to effect the feeding movement, and means for definitely limiting the feeding movement, substantially as described.

20. In a typowriting machine, the combination with the .-|rriage, of a rocking support, a feeding member pivoted in the support, a power mechanism, means operated by thopoum mechanism for rocking thc support to bring the fot-,ding member inio feeding position, and means operated by the power mechanism .for giving the feeding member a swinging movement about the pivot to effect the feeding movement, substantially as described.

21. In a typewriting machine, the combination with the carriage. of a rocking support, aufeeding member-pivotedV for returning the member, substantially as described.

28. In a typewriting machine, the combination with a carriage, of a feeding member, means for giving it a positloning movement, a power mechanism, a rotary cam for giving the member a feeding motion, means for rev turning the member, anda stop for definitely limiting the feeding movement', substantially as described.

24. In a typewriting machine, the vcombination with the carriage,l of a feeding member, a power mechanism, and a rotary cam for bringing the feeding member into feeding position and forgiving it its-feeding movement, and means for returning the member, substantially as described.

25. In a typewriting machine, the combination with a carriage,.of a feeding member, a power mechanism, a rotary cam for bringing the feeding member into feeding positionand for giving it its-feeding movement, and means for returning the member, substantially as described.

26.- In a typewriting machine, the combination with the -cari-iage, of a feeding member, a power mechanism, a

rotary cam for bringing the feeding member into feeding position and for giving it its feeding movement. 4returning means for the member, and a stop for definitely limiting the feeding movement, substantially as described.

27. In a typewriting machine, the combination with the carriage, of a rocking support, a feeding member mounted in the support, a power mechanism, a rotary cam operated by the power mechanism, means whereby the cam rocksthe support to bring the feeding member into feeding position, means for giving the feeding member feeding movemeut, and returning means for the member, substantially as described.

28. In a typewriting machine, the combination with the carriage, of a rocking support, a feeding member mounted in the support, a power mechanism, a rotary cam operated by the power mechanism, means whereby the cam rocks the support io bring the feeding member into feeding position, means for givingthe feeding member feeding movement, returning means for the member, and a stop for definitely limiting the feeding movement, substantially as described.

:29. In a typewriting machine, the combination with the carriage, of a rocking support, a feeding member pivoted in the support, a power mechanism, a rotary cam driven thereby, means whereby the cam operates the rocking support to bring the feeding member into feeding position and swings the member on its pivot to produce the feeding movement, and returning means for the member, substantially as described.

2li). InV a typewriting machine, the combination with the carriage, of a rocking support, a feeding member pivoted in the support, a power mechanism, a rotary cam driven thereby, means whereby the cam operates the rocking support to bring the feeding member into feeding position and swings the member on its pivot to produce the feeding movement, returning means, and means for definitely limiting the feeding movement, substantially as described.

3l. In a typewriting machine, the combination with the carriage having an engaging device, of a rocking support,

a stiff spring connected thereto, a power mechanism, a cam driven thereby :1nd operating on the spring to give the .support its rocking movement, a feeding member pivoted in the support and arranged to engage the device on the carriage, moans for giving the member its feeding movement, and returning means, substantially as de scribed.

IIE. ln a typewriting machine, the combination with the carri ge. havingr a rack, ot a power mechanism, a rockin.;r

5 support, a t'eedin,"Y member pivoted in the support and having; teeth lo engage the rack, a stift spring' extending t'rom the support. a rotary two-faeed cam driven by the power mechanism, one ot' the faces of the eam operating to rot-k the support and the other tace oi-- the eam operaiv 1() ing' to swine; the feeding.A member, and returning.;A means substantially as described.

' In a typewritmeA machine. the combination with the earl' ee havingIt a rack, ol` a power mechanism. a rocking' support', a feeding `member pivoted in the support, a stiti' 15 sprim.v extending.: from tbe support, a rotary two-faced ram driven by tbe power mechanism, one ot' the faces ot' the eanl operating; to rock the support and the other l'aee ot' the ealn operatim.y to swing the feeding; member. means l'or detinitely limiting the teedina,l movement, aud return 2O ine means. substantially as described.

Il lu a typewrtine machine, the combination with the carriage having a rack, of a power meehanism. a Arocking" support, a feedin,y member pivoted in the support, a stit spring extending from the support', a rotary two-faced 0am driven by the power mechanism, one ot the faces of 25 the eam operatingr to rock the support' and the other faee of the eanl operating, to swine' the feeding member. a stop t'or detinitely limiting the feeding, movement, and returniln;l means. substantially as deseribed.

t. ln a typewritiugv machine, the combination with a 3() carriage, ot' a motor drivingr mechanism, a four-motion teedinp; devi e arranged to give 4the carriage a step by step advaneine` movement, said device being,Y arranged to be positively locked at, the end of each advancingl move ment, and operating devices driven by the motor met-lian- 35 ism, substantially as described.

lu testimony whereof, l have hereunto set' my bami. in the presence ot' two subseribinel witnesses.

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