US874056A - Type-writer. - Google Patents

Description

10.874,056. PATBNTED DEG.17,1907.

-H.L. FISHER.

TYPE WRITER. APPLIOATION FILED 0011.213, 189e. RENEWED mm1?. 1907.

- 5 enna-snm' 1.

PATENTED DB0. 1v, 1907. H. Ljfrsmm. TYPE WRITER. APPLIOATION FILED OUT. 13, 1898. BENEWED .TUNE 17. 1907.

5 SHEETS-SHEET 2.

No. 874,056. PATENTEE EE0'. 17, 1907.

- E. L. FISHER.

TYPE WEITER.

APPLICATION TILED 0011.13, 1898. RENEWED JUNE 17, 1907.

5 SHEETS-SHEET s.

M-mtaaf 'A No. 074,050. PATENTED DEG. i7. 1907. H. L. EIsEEE. TYPE WEITER.

APPLIOATION EILED 0011s. i098. EENEWED JUNE 1v. 1901.'

5 SHEETS-SHEET 4.

PATENTED DEG. 1'7, 1907.

- NOR/4,056]

E. L. EISEER. TYPE WRITER. APPLICATION FILEAD OUT. 13, 1898. RBNEWBD .TUNE 17. 1907.

5 SHBETS-SHBET 5.

UNITED STATES. PATENT OFFICE.

. e l HARVEYYL. FISHER, OF WOODSTOCK, ILLINOIS, ASSIGNOR, BY v ASSIGNMENTS, TO FISHER MANUFACTURING COMPANY, OF

A CORPORATION or ILLINOIS.

DIRECT AND MESNE CHICAGO, ILLINOIS,

TYPE-WILITEILl Specification of Letters Patent.

Patented Dec. 17,1907. l

l Application filed ctobel 13. 1898, Serial No. 693,442. Renewed June 17.1907- Serial No. 379.492.

To all whom it may concern:

Be i known that I, HARVEY L. FisHER, a citizen` of the United States, residing at Woodstock, inthe county of McHenry land State of Illinois, have invented certain new l and useful Im rovements in T pe-Writers,

of which the. fo lowing is aspeci cation.

This invention relates to improvements in typewriting`machiiies, and' while it compre.

hends features which are applicable to typewriters of any construction, all the features of the invention are particularly applicablel to a typewriter designed for` producing exposed writing, that is, writing that is visible, letten-by letter, as it proceeds; and it is in connection with such a machine that I have.

herein` illustrated myinvention.

' The principal objects of my invention are the following: First. The rovision ofaplaten feed and escapement mec anism, comprising a rack and pinion, of such character thatthe carriage may; be moved freely back and forth without disconnection or separation of therack andpinion. Second. The provision of` a detent mechanism for the escapement controlling the pinion of the carriage feed mechanism, which maybe disconnected from, or

thrown out of'engagement with, the escapement so as to permlt the free action thereof and consequently of the pinion without disengagement from the, rack. Third. To insure the proper lineY spacing of the'paper feed mechanism, notwithstanding the shifting of the carriage for upper and lower case type, andthis without shifting the position of the i feed mechanism which shall b'e stationary relative to theplaten.` Fourth. The utilization of thepape'r feed roll. to line upv the sheet orA sheets, when inserted in the machine, and to insure the maintenance of such alinement, and at the same ltime prevent the shiftingoof the sheets of paper upon one. .another while being fed into the machine.l Fifth. The pro'- visi'on of double universal spacing mechanism whereby lthe carriage feed mechanism alone will be operated ,byf-the spacingv bar, while both the carriage feed and printing mechanism will be operatedby the key bars, and

vthis regardless of whether the platen is shifted forl either the upper or lower case. Sixth. The provision of means for locking and releasing the shifting'mechanism for theY platen, whereby the machine is adapted for the continuous writing of either upper or lower case type, orfor the consecutivewriting of as many letters of either case as the. operator may desire. Seventh. The provision -of a novel ribbon throw mechanism, whereby the ribbon is promptly thrown under the type and removed from over the writing at each Operation of a key lever, so as to avoid obscuring the writing'except at the instant-a letter is made, and this notwithstanding the shifting of the. platen/for the writing of either upper or lower ca'se letters. These and such other objects as ma hereinafter appear are attained by the devices illustrated in the accompanying drawings, in which- Figure 1 represents a plan viewI of a machine embodying my invention, the type ribbon beingillustrated by'dotted lines and the type being removed' from the type bars vfor clearness of illustration.' Fig. 2 repre* sents a middle vertical section of the machine. Fig. 3 represents a plan yiew of the frame of the machine .with the carriage, ty e detent, rack and pinion of the carriage feed mechanism, showing the same in different positions. Fig. 7 is a detail rear elevation of the escapeinent devices. Figs. 8 and 9 arc .detailed elevations of the paper vfeed mechanism showing 'the' same in different positions. Fig. l() is a detail view of the adjustable stop for thel spacing lever and platen-actuating pawl. Fig. 11 is a detailed sepltion more Aclearly showing the paper feed ro s. z

Similar lettersofreference indicate the same parts in the several figures of the draw- Referring now by letter to theaccompanydrawings, .Ajindicates the main frame of my machine, which is generally rectangular in plan View and provided with an extension B at the front to receive the key-board, this frame being preferably formed of' cast metal and so shaped as to best adapt it'for supupwardly and rearwardly inclined extension,

Fi". 2, arc four bearing plates E, Fig. `1, iny

which are journaled the axles or pivots of the type-bars F. This particular method of arranging and supporting'the type-bars consite sides of the machine.

stitutes the subject-matter of a separate application, Serial No. 706,481, filed February 23, 1899, and it will suffice' here to say that the bearing plates E lare so arranged, and the axles of the type-barsso journaled in them, that the types upon the extremities of the type-bars will all strike at the same point when the bars are operated. The type-blocks are securedto the respective bars F at such varying angles. to the. bodies of the bars as to cause all of the type-blocks to strike the platen at right-angles to its axis, as usual in machines in which each typeebar carries both an upper and lower case letter or character. i Y

Each type-bar is provided near its lower end, Fig. 2, with a rearwardly projecting ear J to which is pivotallyconnected the upper end of a rod 4whose lower end is connected with the kefjflleverv L, so that when the front end ofthe lever is depressed vthe upper end of-the type-bar will be swung rearward and downward into contact with the platen, to effect the printing.

When in normal position the upper ends of the typesb'ars F rest against type-rests M carried by brackets N supported' upon the plate D, Figs. 1 and 2.

The transversely movable paperlcarriage in which the platen C is'mounted comprises a rectangular frame Q, whose forward side, near its middle, Fig. 2, is mounted a roller Rwhich travels upon a lfixed rod or rail S of the lframework and-su ports the forward side of the carriage. T e rear ends of the two opposite side arms of the frame Q are secured to a transverse rod T, Fig. 1, which is adapted to slide longitudinally in guides T5 upon the main frame A of the machine. The platen C is supported at its opposite ends upon arms U, Figs. 1, 2, 8, and 11, secured to and projecting upwardly and forwardly from a rock-shaft V which is journaled' at its opposite ends in the side arms of the paper carriage frame Q.

Secured to and projecting forwardly from the rock-shaft V is a 'short arm WV, Fig. 2, which has secured to it the upper ends of two spring-arms a a which have mounted upon brackets b b secured to their lower ends two anti-friction rollers c c embracing and adapted Figs. l and 2, upon' to travel longitudinally upon a rod X carried by a pair of bell-crank levers Y which are se-V cured, at the opposite sides of the machine, upon -a rock-shaft Z. Each of` the bell cranks Y is provided upon the front end of its lower horizontal arrnv with an inwardly vprojecting lug or foot 7L, Figs. 2 and 3, which ugs underlie the shift-keys g upon the oppo- When either one of said keys g is depressed the shaft Zlwillbe rocked and the rod X thrown forward,

wardly from the supporting 'threaded through i projection 7i', Fig.

Athereby rocking the shaft V and swinging the platen C upward and rearward, into position for the printing of upper-case characters.

The Ipressure of the anti-friction rollers cc upon t e of the armsa a, is regulated by means of a shift rod X, under the spring action set-screw d passing through one of the y brackets b and engaging theinner face of the opposite arm or bracket b.

The upward and rearward movement of the platen C, under the action of the'shiftkeys g, is limited by stops f, Fig. 2,-with which contact short arms e projecting rear-- arms U ofthe platen, the stopsf in the present instance beingadjustable and l projecting lugs provided for the 'purpose upon the paper carriage frame Q, Figs. 8 and 11. y j

For the purpose of locking 4the platen C in shifted position when 'the yshift-key g at the right side of the machine is depressed, and for releasing it when the shift-key at the left side of 'the machine is depressed, the following devicesare provided, reference being had to Figs. 2 and 3: Hung upon a stud h pro j ecting inward from the leftA hand side frame of the machine is a latch i in the form of a bell-crank having its upper and forwardly extending horizontal arm y' weighted so as to swing the lower end of its depending arm rearward when permitted to do so. The depending arm of this bell crank latch nor-- mally rests against the forward end of the bell-crank Y at the left side of the machine, so that if'the front end of said bell-crank be depressed the lower end of the latch I will swing rearward overv the front end of the bell-crank Y and hold the latter depressed, thereby locking the platen in shiftedv posi tion, This occurs whenever the shift-key at the right side of the machine is operated, since the effect of depressing such key is to rock the shaft Z an bell-cranks Y, as heretofore explained; The shift-key Gjat the left sideof the machine, however, is provided with a lateral 3, adapted when the key is depressed to engage the depending arr'n of the latch i and sw ing it forward,` thereby preventing its engaging the front end of the bell crank Y and locking the latter in depressed position. ll'lien, therefore, the shift-key g at the left side of the machine is depressed the platen C returns to its normal position as soon as the key is released. So, also, if the shift-key at the right side of the machine has been operated, and the platen thereby locked in shifted position, the depression of the shift-ke y at the left side of the machine Awill release the platen, since the projection 7c upon such key will Contact with the rear side of the latch i and swing the latter forward, thereby disengaging it from the frontend of d depress Ythe front ends of bothI consisting of screws Y' the bell-crank Y with which it had been engaged at the operation ot the shift-key at the right side of the machine.

The means for advancing the paper carriage to the lett step by step, at the operations of the type-keys and space-bar, is as follows,- it being undertsood that the paper carriage is normally pulled toward the left by a suitable spring inclosed within a drum or casing X', Fig. 2: The paper carriage trame Q has secured to its rear side a horizontal rack-bar m, Figs. 1 and 2, which constant-ly meshes with a pinion njsecnred npon a short vertical shaft o suitably journaled in the frameA. Secured to the lower end of the shaft o is an escape-4 inent wheel p having its depending flange or rim cut to form alternating teeth and notches, as shov. n in Figs. 2 and 7.. The action of the paper carriage spring tendsto turn this esrapeinent wheel 71 in the direction of the are vous upon it in Figs. 4, 5 and 6, these latter viens being bottom plan views of the parts shown in them and the direction ot movenient of the pari s indicated by the arrows being consequently the reverse of that in the top plan view in Fig. 1. The devices cop-` era-ting with the escapement wheel p, to permit the intermittent advance of the 'paper ,cnrriage, are show n most clearly in these latter vien s, where g is a lever pivoted at g to a depending stud p upon the under side of the top plate A of" the main frame of "the machine, Fig. 7. Also pivoted at g is one end of an arm r which has pivoted to its o po site end a short lever s having on one sidb of its tulcrum or pivot athin horizontal end against which bears one end of a spring u secured. at its opposite end to the lever q, and having upon the opposite side of its fulcrum or pivot a thin vertical end ortooth t adapted to pass through the notches in the escapement wheel p. The end. ot the lever q is provided with a notch or recess to receive the tooth t n hen the latter is in the position shown in Fig. 4, and it is also provided upon its upper side ith a lug r which, when the parts are in the position shown in Fig. 4, is in line n ith the tooth t of the escav ement lever s. The spring u bears against t e end of' the lever `s one side ot its middle line and tends to rock said lever upon its fulcrum and throw it to the position shown in Fig. 5, but when the parts are in the position shown in Fig. 4v the lever is held in the position there shown, against the stress otthe spring u, by the stress of the paper carriage spring tending to turn the escapement n heel p in the direction of the arrow. When, however, the lever y is sn ung to the position shown in Fig. 5 the tooth t of the esca-pement lever .s ill be withdrann inward' frontengagemeiit with the not eh of the esrapement n heel p in n hich l it had been resting and` the tooth rr upon the lever g will enter such notch and hold the wheel pin timed position and prevent its be- 1 ing turned forward in the direction ot the arrow notwithstanding the disengagement of the lever s from it. As soon as the tooth t of the escapement lever, at the inward movement of the parts from the position of Fig. 4 to that of Figy 5, becomes disengaged from the esca ement wheetp the spring u will throw the ever to the position shown in Fig. 5, in which position its tooth-t will stand o posite the next succeeding notch in the w'eel prV It, now, the lever g be moved to the position shown in Fig. 4 the tooth t of the escapement lever will pass outward through such succeeding notch in the wheel p, and as soon' as the parts have moved outward tar enough to disengage the lug r Jfrom the wheel p the paper carriage spring will be free to advance the paper carriage and rack m and turn the escapement wheel in the direction of the' arrow until the tooth t of the lever scontacts with and is arrested by the end of the lever q in the position shown in Fig. 4. In this manner and bythes'e means the movement ofthe lever fromthe position shown in Fig. 4 to that shown in Fig. 5 and then back to that shown in Fig. 4 will permit the scapement wheel p to turn the space of one notch or tooth, and thereby permit the paper carriage to advance one step. The-movement of the lever gin one direction, for this purpose, is

effected by a coiled springe connected at one y end to the lever and at its opposite endto the frame A, and its movement in the opposite direction is eti1 ected by means of a universal bar w, Figs. 2 and 3, underlying all of the type-levers L and the two side levers of the spaceebar l, said bar w being carried by the Jfront ends of armsl secured at their rear ends to a rock-shaft y, which rock-.shaft has secured to and. projecting upwardly from it,

near its middle, Aan larm z whoseupper end` bears against or is adapted toengage a lug s upon the under side of the lever q, Figs. 2, 4, and 5. When, therefore, the s ace-bar Z or any one of the type-levers is t' epressed the end ot the lever q adjacent'the escapement wheel )l w ill be thrown forward from the p0# sition shown in Fig. 4 to that show-n `in Fig. 5, and when the space-bar or operated typelever is released the spring o will return4 the parts to the position shown in Fig. 4, with the result that vthe paper carriage will bey advanced one step as described.

K guard against the contingency of the tooth t ot' the esrapeln-rlit lever .Q by any possibility engaging and becoming bound` against the inner surface of the cscapement wheel p when moving outward from th(` position ol' separate members yieldingly connected together and operating as described.

The paper carlriage is at all times free to be returned to or toward right hand position by simply pressing it in .that direction, such movement of the paper carriage simply turning the escapementwheel 4p backward or in a .direction opposite to that indicated by the arrow in Fig. 4, with the result that the escape'ment lever s will be swung upon its pivot bythe turning of the wheel'until its tooth t slips out of the notch in the wheel with which it has .been engaged, after which, during the further backward movement of the wheel,

the'end of the tooth will ride idly over the inner surface of the depending flange of the v Wheel; but for., the purpose of enabling the aperparriage to be freely moved toward the upon spools mounted 1n the caslngs 38, each eft without manipulating any of the key levers or the spacing bar, as well as forthe purpose of permitting it to be moved toward'.

the right without any engagement whatever of the lever tooth ,t with the wheel, I provide means for moving the lever g to the extreme forward position shown in Fig. 6, thereby entirely disengaging both its lug 71 and the tooth t of the escapement lever s from the wheel p. and leaving the latter free to turn in either direction, andthereby leaving the paper carriage to be'freely shifted back and forth. Such means consists of a thin bar or plate 13 mounted'upon the paper carriage frame Qand extending longitudinally of the rack bar m immediately beneath the latter, Figs. 1, -2and 8. As shownin Figfl the plate 13 is. provided with two parallel oblique slots 14A-*14 through which pass pins or screws 15 projecting from the paper carriage frame and cinistituting the connection of the plate 13 with said frame. A rod 17 is connected at its right hand end to a forwardly' projecting ear upon. the' plate 13, and at its eft hand end projects beyond the side frame of thev machine and is provided with a pushbutton 1R. A spring 16 connected at its `right hand end to the plate 13, near the right hand end vof thel latter, and at its left hand end to the frame Q, pulls the plate 13 toward vthe left and yieldingly holds it in the normal position shown in .F 1. t W'hcn, however, the plate is slid toward the right by pressing upon the button 18 of the rod 17 the plate will also, owing to its connection with theI frame by the oblique slots 14. and p/ins 15, be moved rearwardly from the position shown in Figs. 1 and 4, to the position shown in Fig. 6.

anti-friction relier 12 mounted upon thc upturned forward end of an arm g projecting i At such rearward 'movemeiit the rear edge ol` the plaie 13 will contact with an i Fig. 5 to that of Fig. 4, I provide the two with the roller 12 rocks'said bell crankl from the position shown in Fig. 4 to that shownin Fig. 6, and thereby disengages both the lug 1 of the lever g and the escapemerit lever. tooth tfrom the-escapementwheel p. v The paper carriage will then be free to be moved in either direction, the pinion n and escapement wheel p' being idly turned by the rack m during such` movement 'and the roller 12 upon the bell-crank lever traveling along the rear edge ofthe plate 13. the push- button 1,8 is released thespring 1.6 will restore the parts to normal "position shown in Figs. 1 and 4 and rengage the es- Acapement devices'which control tie move-y ments of the paper carriage under the opera-- tions of the keys and spacing bar.

The inking ribbon 52, shown in dotted lines in Fig. 1, is wound at its opposite ends Vhen pressure on spool being provided upon its rear side, outside the casing, with 'a ratchet 4l which is engaged by' the u per end of a pawl 42, Fig. 2, which is pivote at its lower end to an arm ,'43 on the rock-shaft 9, it .being understood y that there are two pawls 42 connected toA two separate arms 43 at the opposite ends of the rock-shaft 9 and coperating with the ratchets41 of the respective ribbon spools. A' universal bar 11, underlying all of the` type-levers but not the space-bar levers,

Fig. 3, is supported by arms 10 secured to and projecting rearwardly from the rockshaft 9, so that whenever any type-lever is depressed the shaft 9 will be rocked and the pawls 42 thrown upwards. Suitable means, not shown, is provided for holding one of the pawls 42 out of cooperation with its ratchet 41 while the opposite pawl is in cooperation with its ratchet, so that the ribbon will be shifted in one direction or the other according to the adjustment ofthe pawls.

In its passage from `one ribbon spool to the other the 'ribbon 52 is led through guideways 2 upon the upper rear end of a reciproeating ribbon-throw 3 consisting, in the particular form shown, of a forked `or yokeshaped plate suitably guided to reciprocate Abackwardly and forwardly upon the forwardly and vrearwardly inclined portion of thc bracket plate D which supports the bearing plates E for the type-bars, Figs. 1 and 2. The upper rear ends of theA two arms of this ribbon-throw plate are reversely bent and provided with upwardly projecting lugs, to form guide-ways for the retention and passage of the ribbon. To the under side of the plate 3 near its lower forward end is'pivoted the upper end of the vertical arm 4 of a bent lever, whose other arm extends rearwardlyY and is pivotally conneetechto the upper end of an arm 6 fast at its lower end upon the rock-shaft Z, Fig. 2. Pivotally connected to rear end of an arm or link 7 whoselowei forhaving q as its pivot or the bent lever 4--5, at its angle, is the upper ward end isv pivoted to the upper end of an arm 8 fastened at its lower end to the rockshaft 9, which rock-shaft, as ,beforel exbut when any type-leveris depressed and type-bar.

' is necessary to -bring the shaft 9 'thereby rocked the connection of said shaft with the ribbon-throw plate, through vthe medium ofthe arm 8, link 7, and lever-arm 4, will slide the ribbon-throw plate- 3 upward and rearwardl and carry the ribbon into the path of the typ This is the operation for the printing of lower-case letters and characters, but. when the platen C is swung rearward b y the operation of one of the shift-keys in the manner heretofore explained, for the printing of upper-case letters and characters, it that the ribbon shall be carried further rearward by the ribbon-throw, so as it over the line of Iprint upon the platen in the shifted positionof the latter. rl`his is effected by means ofthe connection of the rock-shaft Z with the bent/lever 4-5 through the medium of the arm 6. Whenever either one of the shift-keys is depressed, to shift the laten C to upper-case position, the shaft Z 1s,rocl ed in the manner heretofore explained, thereby throwing forward the upper end of the arm 6 and consequently moving forward the point of pivotal connection between the link 7 and bent lever 4--5 and straightening out the toggle formed by said link and the arm 4 of the bent lever, also`slightly rocking the latter on the pivot of its angle, with the result that the ribbonthrowfplate 3 will be slid upward and rearward a proportionate distance, and. when the type-lever is then depressed and the shaft 9 rocked its arm "5i, operatingupon the ribbon-throw plate through the link 7 and arm 4 of the bent lever, will move the ribbon throw plate rearward to the necessary position for the printing of the upper-case characters. l For the purpose ol rotating the platen (l, for line spacing, the platen has secured upon the right hand end of its projecting s indle a ratchet 19, Figs. l, 8, and 9, with W' lich cooperates the upper end of a hook pawl 22 which in the present instance is in the form of a bell-crank lever pivoted at its angle upon the depending rear end of the spacing lever 2l. A spring 2lu coiled around the pivot of the lever 2l andfsecured at one end to saidv lever and at its opposite end to the paper carriage frame Q yleldingly holds the lever 1n the position-shown with the depending arm of the pawl lever 22 `bearing against the lower forward edge of a pivoted stop 24 platel holds theribbon 52 t'o the front.

'22 and causes the dev ending arm'oe'upon the 1 u on theframe'Q, this stop serving to limit t e movement of the lever 2l under the stress of its spring 21,

Coiled around the pivot. of 22--23 vis as ring 22a connected at one end to the depen ing arm of the spacing `lever V21 and at its opposlte end to the depending arm 23 of the pawl lever and exerting itsfforc'e .in

the pawl lever a direction which tends to spread the two arms of the levers a art as shown in Fig. 9. In normal position, d the spring 21a kovercomesthatof the -ring n i the spacing lever topress t e depending arm of t e pawl-lever a alnst the stop 24 and maintain the ends o 'the two levers in contact with each other, asin Fig. 8. Whenever the front end of the s acing lever 21 is lifted by hand, however, t e spring 221'will be permitted tol actr1 and will at once'rock the pawll owever, the tension of` lever upon pivot and throw its upper rear`v r end into engagement with the ratchet 19, after which any further movement of the spacing-lever 21 will cause the pawl to turn t e ratchet and platen.

As shown in Fig'lO the stop 24 consists of a pivoted plate or lever of such shape that when in one position it will present a contact. surface c to the depending arm 23 of the pawl lever which will arrest the rearward movement of the depending arm of the spacing-lever 2-1, (under the action ofitsspring 21a) at agiven point, and whenin another positiomwill present a Contact surface af"A which will arrest 1t at a omt forward of the one just mentioned. hen in the position shown inthe drawings the stop permits a maximum rearward movement of the parts, and consequently a maximum length of forward movement when the front end of the spacing lever is lifted byhand from the position shown in Fig. 8 to that shown in Fig. 9; and inasmuch as' thep'awl 22 -is thrown into engagement with the ratchet 19 by the spring 22" soon as the front end of the spacing lever 2] is lifted, it follows that with the stop 24 in the position shown in the drawings movement of the spacing lever 2l to t e position. shown in Fig. S) will impart a maximum movement to the ratchet lf.) and platen l, andv advance the platen a .-"full space. When, however, the stop late/24 is swung to position to present its other contactsurface m to the depending arm 23 ofthe pawl lever the parts will be arrested and maintained in a norm al ositiou forward of/that shown in Fig. S, wit i the result that a movement ofthe spacing lever from .that position to the position shown in Fig; 9 will advance the ratchet 1Q and platen C but one-half the distance which they are advanced under the other adjustment of the stop, or, in other Words, a half space. i

The adjustment and proportion of the parts are such that, notwithstanding the fact sitions or the other, the only dinerence being sist of two rollers 26 26, (Figs. 2 and 11),

that the spacing lever and actuating pawl for the platen ratchet are mounted upon the paper carriage frame Q, instead of being mounted upon the swinging `platen frame Ll, thev pawl willv coperatc with the ratchet in the manner and with the result above described whether the platen be in one or its shifted pothat when the platen is swung rearward to upper-case position .the pawlz2 will, when the spacing lever is operated, engage the ratchet 19 one notch or tooth in advance or the point at which it 4would engage it if 'the platen were in its normal forward position. After its engagement with the ratchet the further movement of the spacing lever will cause the pawl to turn the ratchet platen one` space or two spaces, according to the'adj ustment of the stop 24, whether the platen bein one of its shifted positions or the other.

A. roller 26 carried by a spring arm 20al secured at its lower end to one or the supporting arms U of the yplaten bears againstJ the ratchet 19 and serves as a brake and arresting pawl for the ratchet and platen.

The spindle of the platen has secured to its extreme ends thehand-wheels 35 by which the platen may be turned back and forth at any time independently of the spacing mechanism above described.

The feed-rollers which coperate with the platen to advance or retract the paper as the platen is turned forward or backward conjournaled at their opposite ends in the upper and lower ends of the two opposite side arms 25 of a pivoted frame composed of said side arms and a curved cross-plate 25a connecting them and. curved to conform to the forward face of the platen. The side arms 25 of this frame are pivoted at 27 to the upper forward ends of a pair of arms 28 secured at their lower rear ends to the opposite ends of a rocleshaft 30, which rock-shaft is journaled at its opposite ends in two short arms 3l .projecting forwardly from the lower ends of the platen-supporting arms U, or otherwise 'made fast upon the rock-shaft V. The rockshaft 3() has fast upon it near its middle a rearwardly projecting arm 32 provided with a laterally projecting stud to which is connected one end of a spring 33 whose opposite end is connected to the rock-shaft V. The tension of this spring tends to force the rear endvof the arm 32 downward and rock the shaft 3() in a direction to force the feed-rollers 26 against the platen C, as shown in Fig. 2. The shaft 30 has secured upon its right hand, end, Figs. l andv 8,l a handle; 34 by the feed rollers 26 are mounted alsoghave journaled in them athird roller 29 which is' normally out of contact with the platen C, asl in Fig. A2, but adapted to be thrown into contact therewith 4whenever the shaft' 30 is rocked by means of the handle 34 to throw the feed rollers 26 forward' to the position shown in Fig-1l. l i,

The above described construction and arrangement of parts is particularly advantageous where the' machine is being used for manifolding work, and a considerable number of sheets of'paper, with interposedcarbon sheets, have to be inserted between the platen and feed rollers. The front ends of such sheets are inserted from the rear be-` tween the platen C and 'roller 29 when the parts are in normal position as in Fig. 2, and are pressed forward until they abut against the lower feed roller 26, the roller 29 serving as a guide for the insertion of the front ends of the sheets andthe roller 26 serving as a longitudinal stop against which theymay be straightened ,and lined up. Upon then lift.- ing the rear end yof the handle 34 (Fig. 8) with the rightl hand the roller 29 will be 11 and caused to firmly grip the front ends of the inserted sheets betweenitself and the platen C, 'the feed rollers 2 6 being at the same time thrown forward to permit the freel passage of the ends of the inserted sheets be' tween them; YVith the parts held in this position with his right hand theoperator can turn the platen C forward with his left hand until the sheets .have been advanced far enough fortheir upper front ends to have then releasing the handle 34 the spring 33 will instantlyretn'rn thev parts to the position shown in Fig. 2 and cause the rollers 26 to grip the paper between themselves and the platen, after which the paper will be further advanced by the turning of the platen, I either by handv or by means of the spacing mechanism.

The arrangement of the rollers coperating with the platen in the manner above de-5 scribed `is not only advantageous in connec tion the initial introduction of the pa! per into the machine, particularlyin manifolding work, but it has an advantage in connection with the adjustment of the paper from time to. time while it is being written upon, since by moving .the handle 34 to middle position the three rollers 26, 26, and 29 may all be held out of engagement with the' platen, thus entirely releasing the paper and permitting it to be freely adjusted up and means of which the shaft may be rocked in the opposite direction and the feed rollers 26 thrown forward away from the platen C, as j shown in Fig. 11, j Tho side arms 28 which are fast vupon the rock-shaft 3() and carry the frame in which down or sidewise, as occasion may require or may be desirable, after' which by simply releasing the handle 34 the paper will be firmly gripped between the rollers 26 and platen acam. .l

bHaving described my invention, whatv I thrown upward to the position shown in F ig.

passed above the upper feed roller 26. Upon supported -in'g a pair of spring claim and desire to secure by Letters Patent 1S 1. In a typewriting machine, the combination of a transversely movable paper carriage frame, a rock-shaft mounted therein, a platen j in arms fast upon said'rock-shaft and adapted to beshifted from lower-case to upper-case position and vice versa by the rocking of said shaft, and a shift-keyl and connections for rocking said shaft, substantially as described.

2. .In a typewi'ting machine, the combination of a transversely movable paper carriage frame, a rock-shaft mounted therein, a platen supportedin arms fast upon said rock-shaft and adaptedto be shifted from lower-case to upper-case position and vice versa by the rocking of said shaft, a levers and means for roc ing the same, a shift-rod or bar connecting the endsof said levers, and an arm projectin from said rockshaft and coperatin Wit the shift-rod, substantially as descri ed.

' 3. In a typewriting machine, the combination of a transversely movable paper carriage frame, a rock-shaft mounted therein, a-platen supported in arms fast upon said shaft and adapted to be shifted from lower-case 4to upper-case position 'and virer-versa by the rocking' of said shaft, a pair of bell-crank levers, a4 shift-rod or bar connecting their ends, an arm projecting from the rock-shaft and cooperating with said shiftrod, and a pair of shift-keys at opposite sides of the machine .coperatin with the res ective bell-cranks, substantially as describe 4. In a type-writing machine, the combination with a platen, a movable carriage, a rock-shafttherein, arms on said rock-shaft carrying said platen, and a shiftin bar, of an arm connecting said bar and sha t compris bars connected Vtogether at one end and ada ted at their free ends to engage said bar an means for adjusting the freeends of said sprin bars with relation-to each other, substantia ly as described.

5. In a type-Writing machine, the combination with a platen, a movable carriage, a rock-shaft therein, arms on said rock-shaft carrying said platen, and a shifting bar, of an arm connecting said bar and shaft comprising a pair of spring bars secured together at one end and at their free ends carrying antifriction' rollers engaging said shifting bar, and a set-screw passing through one of said spring bars and impinging against the other for adjusting the free ends of said sprin `f bars with relation to each other, substantie` ly as described. 4

6. ln `a typewriting machine, the combination of the transversely movable paper carriage frame Q, the rock shaft V journaled therein, the arms U fast upon and projecting upward .from the rock shaft V, the platen C y mounted in saidarms, the rock shaft Z iour-l air of bell-crank 4 naled in the main frame of the machine, the bell' crank levers Y fast upon said shaft, the shift rod X connecting the upper ends of the bell cranks Y, an arm depending from the rockshaft V and cooperating with the shift rod X, nd a shift key forrocking the bell cranks Y,'su,bstantially as described.. 7. In a typewriting machine, the combination of the transversely movable paper carriage frame Q,the rock shaft 'V- journaled` therein, the arms'U fast upon and projecting upward from the rock shaft V, the platen (l mounted in said arms, the rock shaft Z journaled in the main frame of the machine, the

bell crank levers Y fast upon said shaft, the shift rod X connecting the upper ends ofthe bell cranks Y, an arm depending from the rock shaft V and carrying at its lower end an lanti-friction roller c bearing against the forward side of the shift rod X, and a shift key for rocking the bell cranks Y, substantially as described.

8. In a typewriting machine, the combination of the transversely movable paper can ria-ge frame Q, the rock shaft V journaled therein', the arms Ufast upon and projecting upward from the rock shaft V, the platen C mounted in saidarms, the rock shaft Z journaled in the mainframe of the machine, the

bell crank levers Y fast .upon said shaft, the shift rod X connecting the upper ends of the bell cranks Y, the pair of spring arms a ay depending from the rock shaft V and carryin at their lower ends the anti-friction ro lers c c lbearing upon opposite sides of the shift rod X, and a shift key for rocking the bell cranks Y, substantially as described.

9. In a typewriting machine,l the combina-` tion of the transversely movable paper carriage frame Q, the rock shaft V journaled therein, the arms U fast upon and projecting upward from the, rock shaft V, the platen (l mounted in said arms, the rock shaft Z journaled in the main frame of the machine, the bell crank levers Y fast upon said shaft, the shift rod X connecting the upper ends of the bell cranks Y, the pair of spring arms ,a a secured at their upper ends to the' short arm Wprojecting from the rock shaft V and carrying lat their lower ends the brackets b l) and embracing the shift rod X, the set screw d for adjusting the rollers c c relatively 'to each other and the rod X, and a shift key for rocking the `bell cranks Y, substantially as described.

10. In a typewriting machine, the combination, with a `paper carriage and a shifting platen suitably mounted thereon, of a pair of bell crank levers mounted in the main' frame of the machine, a shift rod or bar connecting said levers, means intermediate said shift rod and the shifting platen for causing the rocking' of the bell cranks to shift the operating with the respective bell-cranks to rock the same, and a latch cooperating with one of said bell cranks and with one of said shift keys, said latch engaging one-of the bell cranks and holding it in shifted position when one of the shift keys is operated, and

being disengaged from the bell crank when the other one f the shift keys is operated, .fhereby upon operating one of the shift keys the bell cranks and platen will be locked in shifted position, and upon operating the other of said shift keys they will be released and permitted to return vto normal position, substantially as described.

11. In a typewriting machine, the combination, with a paper carriage and a shifting platen suitably mounted thereon, of a pair of bell crank levers mounted in the main frame of the machine, a shift rod or bar connecting said levers, means intermediate said shift rod and the shifting platen for causing the rocking of the bell cranks to shift the platen from lower case to upper case position, or vice versa, a pair of shift keys cooperating with the respective bell cranks to rock the same,

and a latch coperating with one of said bell cranks and with one of said shift keys, said latch engaging the bell crank and locking it Aand the platen in shifted position when one of said shift keys is operated, but prevented from engaging the bell crank when the other one of said shift keys is operated, whereby when one of the shift keys is operated the platen will become locked in shifted position, and whereby when the other one of said shift keys is operated the platen will be moved to shifted position but released and returned to normal position as soon as the shift key is released.

12. In a typewriting machine, the combination with a platen, a movable carriage and a rock shaft mounted thereon and having arms carrying the platen, of an arm on said shaft engaging a shifting bar carried by apair of bell crank levers, a pair of key levers for rocking the same and thereby moving the shifting bar, a pivoted catch adapted to engage and lock one of said bell crank levers in a depressed position, and a projection on one of said key levers adapted and arranged to engage said catch when the lever is depressed, substantially as described.

13. In a typewriting machine, the combination ofthe rock shaft Z, the bell cranks Y fast thereon, the shift rod X connecting the upper ends of said bell cranks, a shifting platen and a connection' between the same and the rod X for causing the rocking of the bell cranks Y to shift the platen, the shift keys g engaging thc respective bell cranks Y to rock the same, the pivoted latch i coperating with one of the bell cranks Y, and the projection 7c upon one of the shift keys f/ cooperatin with thelatch i, substantially described.

14. In a typewriting machine, the combination of the transversely movable paper carriage, the rock shaft V mountedftherein, the .arms U fast upon and projectingupwardly from the shaft V, the platen C mounted inthe arms U, the rock shaft Z mounted in the main frame of the machine, the bell cranks Y fast upon the shaft Z, the shift rod X connecting the upper ends of the bell cranksvY, an arm depending from the rock shaft V and cooperating with the shift rod X to cause the rocking of the bell cranks Y to shift the platen C, the shift keys g cooperating with the respective bell cranks Y, the latch i cooperating with one of said bell cranks, and the projection 7c upon one of. the shift keys g cooperating with the latch fi, substantially as described.

15. In atypewriting machine, the combination, with-atransversely movable papercarriage and a shifting platen mounted thereon, of a ribbon-throw mounted upon the fixed frame of the machine, a rock-shaft, a universal bar located in the path of movement ci' the type-levers 'and supported by arms projecting from said rock-shaft, for actuating the latter means intermediate the rock-shaft and ribbon throw for actuating the latter through'the medium of the rock shaft to cause it to carry the ribbon to and from the line of print upon the platen, and a connection between such -actuating means and the platen-shifting mechanism for causing the operations of the type-levers to carry the inking ribbon to the line of print u on the platen when the latter hasv been shi ted to upper-case position by the operation of said mechanism, substantially as described.

16,y In a typewriting machine, the combination, with a transversely movable papercarriage an'd a shifting platen mounted thereon., of a ribbon-throw mounted upon the fixed frame of the machine, a rock-shaft, a universal bar located in the path of movement of the type-levers and supported by arms projecting from said rock-shaft, a second rock-shaft, bell crank levers fast thereon, a shift-rod connecting said bell-crank levers, means intermediate said rod and the shifting platen for causing the rocking of the levers t0 shift the platen, means for rocking the levers,

two arms projecting from the two rockshafts, and va joint connection between sald arms and the ribbon-throw, whereby when the type-levers are operated the ribbonthrow is caused to carry the ribbon to the line'of print upon the platen whether the latter be in lower case. position or in u percase position, substantially as-describe .17. In a typewriting machine, the'combination, with a transversely movable papercarriage, a rock-shaft mounted therein, arms fast upon and projecting upwardly from said rock-shaft, a pla-ten mounted in said arms, and platen-shifting mechanism operating through said rock-shaft to shift the platen from lower-'case to upper-case position,l cfa ribbon-throw mounted upon the fixed frame` ofthe machine, and means connectin said ribbon-throw with the type levers an with the platen-shifting mechanism for causing said ribbon-throw to carry the inking rribbon to the line of print upon the platen whether the latter be in lower-case position or in upper-case position, substantially asfde'scribed,

18. In a typewriting machine, the com-bination, witha transversely movable paper.

carriage, a rock-shaft mounted therein, arms fast upon and projecting upwardly 'from'said rock-shaft,- a platen mounted in saijd arms, a,

rock-shaft mountedl in the fixed frame of the 4 machine, bell-crank .levers fast upon' said shaft, a shift-rod connecting said bell-crank levers, anl arm depending from the platensupporting rock-shaft and co erating with said rock-shaft, meansfor roc ing the bellcranks to shift the platen, a second rockshatt mounted in the iixed frame of the machine, .a universal-bar located in thepath of fast upon and'projecting upwardly from said rock-shaft, avplaten mounted in said arms, a rock-shaft mounted in 'the fixed frame of the machine, bell-crank levers fast upon said shaft, a shift-rodconnecting said bell-cranks, an arm depending ,from the platen-supporting rock-shaft and cooperating with said shift-roch, lmeans for. rocking the bell-cranks to shift the platen, ,a lsecond rock-shaft mounted in the fixed frame of the machine, a universal-bar located in the path of the typelevers and supported by l arms projecting from said rock-shaft, a ribbon throw, an arm projecting from each of said rock-shafts, and a joint connection between theribbon-throw and said arms for causing the ribbon-throw 4to carry the ribbon' to the 'printing line upon the 'platen when the 'latter is shifted to u percase position, substantially as describe L 20. In a typewriting machine, the combi' nation, with a transversely movable paper carriage, a rock-shaft mounted therein, arms fast upon and projecting upwardly from said rock-shaft, a platen mounted in said arms, a rock-shaft mounted in the'ixed frame' of the machine bell-crank levers fast upon .said shaft, a shift-rod connecting said bell-cranks, an arm depending from theplaten-supporting rock-shaft and cooperating with said `shift-rod, `means for rocking the bell-cranks to shift the platen, a second rock shaft mounted in the ixedframe of the machine, a

universal-bar located in the path of the typelevers and, supported by arms projecting from said rock-shaft, a ribbon-throw, an armA projecting from eachjof said rock-shafts, a

bent lever connecting the ribbon-throw with the armprojectin from the platen-shifting lever with the arm proj ectin from the other rock-shaft, substantially as escribed.

'rock-shaft, and a ink connecting said bent A 2 1. In a typewriting machine, thecombination of a transverse'y movable paper car-' riage, a shifting' platen suitably mounted therein, a platen-shifting rock-shaft with means intermediate the same and the platen for shifting rocked, a ribbon-throw for carrying the ribbon to the printing line upon vtheplaten, a second rock-shaft actuated by the type-1evers, a bent lever connected at one end to the ribbon-throw and at its opposite end to an arm projecting from the platen-shifting rock-shaft, and a link connecting said bent lever to an armprojecting from the other rock-shaft, substantially as described.

22. In a typewriting machine, the combithe latterv when the shaft is` nationl of the-shifting platen C, the platen-vk shifting rock-shaft Z with' eans interme.- 1

diate the'same and the'platen C for shifting the latterlwhen the shaft is rocked, the rockpath of movement of the type-levers and supported by arms projecting from the rock-` shaft 9, the reciprocating ribbon-throw, the bent lever l.l--5 connected at one end to said vribbon-throw and at its opposite Vend to the 23. In a typewriting machine, the combi-l nationvof the transversely movable paper carriage frame Q, the rock-shaft V mounted therein, the platen C supportedin the arms shaft 9, the universal-bar 11 located in the U secured to and projecting upwardly from'.

the rock-shaft V, the rock-shaft Z, the bellcranks Y fast thereon, the shift-rod X connecting the ends of said bell-cranks, the shift keys g for rocking said bell-cranks, an arm depending from the rock-shaft -V and 'cooperating with the shift-rod X, the rockshaft 9, the universal-bar 11 located in the the arms 10 projectin from the rock-shaft 9, the reciprocating ri bon-throw, the bent lever 4-.5 connected at one end to said throw and at -its oppositeendto the arm 6 projecting from the rock-shaft Z, and the link 7 connecting the bent lever 4-5 with an-V a'rm 8 'path of the type-levers' Ii and supported by projectin 'from therock-shaft 9, substantially as escribed. g I 24. In a type-Writing machlne, the combination with a movable carriage carrying a shifting platen, of a movable ribbon-throw constituting a guide for the ribbon, a bent lever connected at one end to said throw and at its opposite end with'the platen-shifting mechanism, a rock-shaft, an arm thereon, a link connecting said arm with the angle of said lever and a universal bar underlying the key levers and adapted to be operated thereby and to operate the rock.' shaft, substantially as described.

25. 1n a type-writing machine, the combination with a movable carriage carrying a shifting platen, a shifting bar carriedbybell crank levers mounted 'upon a rock-shaf t journaled. in the frame of the machine, of an arm on said shaft, a movable ribbon-throw con stituting a guide for the ribbon, a bent lever pivotally connected at one end with said throw and at its opposite end with said arm, a link connecting said lever at its angle with an arm on another rock-shaft journaled in the frame of the machine, a universal bar underlying vthe key levers for actuating 'said rock-shaft, and key levers adapted and arranged to rock the bell-crank levers, substantially as described.

26. In a type-writing machine, the combination with the movable carriage carrying the platen and a rack secured to said carriage, of a shaft journaled in the frame of the machine, a pinion 'fixed on said shaft and permanently engaging said. rack, an escapement wheel fixed on said shait, a detent mechanism, engaging said wheel, an arm on a rockshal't adapted and arranged to actuate said detent mechanism and a universal bar underl ying the key levers and levers supporting the spacing bar for actuating said rock-shaft, substantially as described.

27. ln a type-writing machine, the combination with the movable carriage carrying the platen and a rack secured to said carriage, of a shaft journaled in the frame of the machine, a pinion lxed on said shaft and permanently engaging said rack, an escapement wheel fixed on said shaft, and a detent mechanism comprising a spring-actuated, pivoted lever provided with a rigid tooth a springactuated tooth pivoted to said lever, an arm on a rock shaft adapted and arranged to actuate said detent mechanism, and a universal bar underlying' the key levers and levers supportingl the spacing bar for actuating said rock shaft, substantially as described.

28. 1n a typewriting machine, the combination with the movable carriage carrying the platen, and a rack secured to said carriage,

oll a shaft journaled in the frame of thc mai chine, a pinionmounted on said shaft engaging said rack, an escapement wheel fixed on said shaft. and a detent mechanism comprising a spring-actuated bell-crank lever having i a rigid tooth on one end thereof., a springactuated tooth pivoted to said lever in line with and adjacent to said rigid tooth, an arm on a rock shaft adapted and arranged to actueva-,05e

ate said detent mechanism, and a universal bar underlying the key levers and levers supporting the spacing bar for actuating said rock shaft, substantially as described, and a slide bar mounted u on the carriage and adapted and arranger to engage the other lateral] substantially as described f" 29. n a type-writing machine, the combination with the movablecarriage carrying the platen, and a rack secured to said carriage, of a shaft journaled in the frame of the machine, a pinion mounted on said shaft and engaging said rack, an escapement wheel 'fixed on said shaft, and a detent mechanism comprising a spring-actuated bell-crank lever having a rigid tooth on one end thereof, a spring-actuated tooth pivoted to said lever in line with and adjacent to said rigid tooth, means for actuating said lever by the key levers and spacing bar, and a slide bar carried by the movable carriage block, cain slots therein receiving pins on said carriage, and a push rod attached to said bar and for actu ating the same, substantially as described.

30. 1n a typewriting machine, the combination of the escapement wheel p geared to -the paper carriage, the lever q having the lug or tooth r, the separate arm or lever 1 moving With'the lever q, the lever s pivoted to the arm lr and having the tooth t cooperating with the wheel p, the spring u acting upon the lever s, and means for actuating the lever (j, substantially as described.

3l. In a typewriting machine, the combination of the escapement wheel y) geared to the paper carriage, the lever g provided with the lug or tooth r adapted'to cooperate with the wheel y), and with the notch or recess in line with said lug, the lever .s suitably supported to move with the lever 'y and having the tooth t cooperating with the wheel p and adapted to fit in the notch or recess in the end ofthe lever q in line with the lug r, the spring a acting upon the lever s, and means for actuating the lever y substantially as described. y

32. in a typewriting machine, the combination of the escapement wheel p geared to the paper carriage, the lever q having the lug or tooth 1' adapted to cooperate with said wheel and provided with a notch or recess in line with said lug, the arm orlever 1" adapted to move with the lever g, thel lever s pivoted to the armrand having the tooth t adapted to cooperate with the Wheel p and to fit in the notch or recess in tbe end of the lever q, and means for actuating the lever q, substantially as described.

33. .ln a typewriting machine, the combination of the escapement wheel p geared to the paper carriage, the lever q having the lug l, or tooth r adapted to cooperate with the l wheel p, the lever S pivotally supported to move with the lever (l and provided with the arm of said bell-crank lever When moved tooth t adapted to coperate with the Wheel.

q, the spring u acting upon the lever s, the spring 0J connected to the lever q, the rock- `shaft y, the arm secured to and cooperating with the lever q, and the universal-bar w underlying the key-levers of the machine and connected tothe rock-shaft y by the arms .90, substantially as described.

34. In a type Writing machine, the combination of the escapement Wheel p permanen-tly geared to the paper carriage and turned in oppositeV directions by the movement of the carria e back and forth across the machine, the vided .at one end With the' lug or tooth r adapted to coperate with the Wheel p and carrying at its opposite end the anti-friction roller 12, the lever s pivotally supported to move with the lever Q and having the tooth t adapted to coperate with the Wheel p, the

spring u acting upon the lever s, means for` actuating the lever q to disengage the lever s from the Wheel p and engage the lug r with said Wheel, fand then rengage the lever s with said Wheel and disenga'ge the lug r therefrom, and the releasing bar 18 coperating with the roller 12 to rock the bell-crank to position to entirely disengage both the lever s and the lug r from the Wheel jp and permit the latter to be freely turned independently of thelevers g and s, substantially as described. I

35. In a type-writing machine, the combination with the paper carriage and the platen 'mounted thereinof a pair of feed rolls mounted in one shifting frame and a single feed roil mounted in another shifting frame pivotally connected With the first-mentioned frame, and a means for moving said frames so as to cause the pair of rolls to engage the platen alternately-With the single roll, substantially as and for the purpose described.

36. In a type-Writing machine, the'combination with the paper carriage and the platen mounted therein of a pair of feed rolls mounted in a movable frame, a sin le feed roll mounted in a second movable rame pivotally attached to the first-mentioned frame,.

means for yieldingly maintaining the pair of rolls in contact with the platen, and means for simultaneously shifting the pair of rolls out of contact with the platen and throwing the single roll in contact with the platen, substantially as and for the purpose described. 37. In atype-Writing machine, the combination with. the paper carriage and the platen mounted therein of a frame having a pair of feed rolls journaled therein parallel with the platen, said frame being mounted at its center upon one arm each of a pair of rocking arms pivoted to the platen-supporting frame, a feed roll journaled in the other arms of said rocking frames, and means for rocking said arms, substantially as and for the purpose described.

ell-crank lever q pro- 38. In a typew'riting machine, the combination ,of the platen C, the pivoted supporting frame 28, the second frame 25 pivotally hung at its middle in said supporting frame and carrying the rollers 26-26 at equal distances from its pivotal'aXis, and a springapplied tothe supporting frame 28 and operating to press both rollers 26;-26 against the platen With a uniform pressure 9 substantialy as described.

39. In a typewriting machine,the combination of the platen C, the pivoted .supportv ing frame 28, the second frame 25 pivotally hung at its middle in said supporting frame and carrying the rollers 26-26 at equal distances fromits pivotal aXis, a spring applied to the supporting frame 28 and operating to press both rollers 26--26 against the platen with a uniform pressure, and means for swinging the frame 28 away from the platen to separate the rollers 26-26 therefrom;psubstantially as described.

40. In a typewriting machine, the combination of the platen C, the feed rollers 26-26 and the roller29 mounted in a rocking frame, and a spring operating to normally press the rollers 26--26 against the platen C and hold the roller 29 retracted therefrom, substantially as described.l

.41. In a typewriting machine, the combiy nation of the platen C, the feed-rollers 26-26 and the roller 29 mounted in a rocking frame, a spring operating to normally pressythe rollers 26-26 against the platen C and hold the l roller 29 retracted therefrom, and means for throwing the rollers 26-26 away from the platen and bringing the roller 29 'against the platen, substantially as described.

42. In a typeW'riting machine, the combination of the platen C, the rock-shaft 30, the arms 28 secured to said rock-shaft, the feedroller frame 25 25a pivotally supported by the arms 28,. the feed rollers 26-26 mounted in saidpivoted frame, and a spring operating upon the rock shaft to press the rollers 26 26 against the platen C, substantially as described 1 43. In a typewriting machine, the combi- I nation of the platen C, the rock-shaft 30, the arms 28 secured thereto, the pivoted feedroller frame 25 25a carried by the arms 28,

the feed rollers 26 26 mounted in said pivoted frame, the roller 29 mounted in the arms 28, and a spring operatin to press the rollers 26 26 against the platen and hold 'the roller 29 retracted therefrom, substantially as described.- i y i 44. In a' typewriti'ng machine, the combination of the platen C, the rock-shaft 30, the arms 28 secured thereto, the pivoted feedroller frame 25 25a carried by the arms ,28, the feed-rollers 26 26 mounted in said pivoted frame, a springlop'eratingD to press the rollers 26 26 against t e platen and hold the roller 29 retracted therefrom, and the handle34 fast upon' the' rock-shaft 30 for rocking the same to thr'ow the rollers 26 26 away from the platen, substantially as described.

45. In a typewriting machine, the combination of the platen C, the rockshaft 30, the arms 28 secured thereto, the pivoted feedroller frame 25 25al carried by the arms 28, the feed rollers 26 26 mounted in said pivoted frame, the roller 29 mounted in the arms 28, a spring operating to press the rollers 26 26 against the platen C and hold the roller 29 retracted therefrom, and the handle 34 fast upon the rockfshaft 30 for rocking the same to throw the roller 29 against the platen C and retract the rollers .26 26 therefrom, substan tially as described.

.46. In a typewriting machine', the combination of the rock-shaft V, the arms U se cured thereto, the platen C mounted in the arms U, means for rocking the shaft V to shift the platen, the rock-shaft 30 mounted in arms fast upon the rock-shaft V, the arms 28 fast upon the rock-shaft 80, the pivoted.

feed-roller frame 25 25a carried by the arms 28, the feed-rollers 26 26 mounted in said pivoted frame, and a spring operating to press the rollers-26 26 against the platenC in both of its shifted positions, substantially as described.

47. In a typewriting machine, the combination of the rock-shaft V, the arms U secured thereto, the platen C mounted inthe arms U, means for rocking the shaftV to shift the platen, the rock-shaft 30 mounted in arms fast upon the rock-shaft V, the varms 28 fast upon the rock-shaft 30, the pivoted feed-roller frame 25 25zL carried by the arms 28, the feed-rollers 26 26 mounted in said pivoted frame, the roller 29 mounted in the arms 28, a spring operating to normally press the rollers 26 26 against the platen C and hold the roller 29 retracted therefrom, and the handle 34 fast upon the rock-shaft 3() for throwing the 'roller against the'platen C and retracting the rollers 26 26 therefrom, substantially as described.

48.. In a typewriting machine, the combination of the rock-shaft V, the arms U secured thereto, the platen C mounted in the arms U, means for rocking the shaft V to shift the platen, the rock-shaft 30 mounted in arms fast upon the roch-shaft V, the arms 28 fast upon the rock-shaft 30, the pivoted feed-rollerframe 25 25a Vcarried by the arms 28, the feed rollers 26 26 mounted in said pivoted frame, the roller 29 mounted in the arms 28, the arm 32 fast upon the rockshaft 30, the spring 33 connecting the arm 32 with the rock-shaft V, and the handle 34 fast upon the rock-shaft 30, substantially as described. i

4S). ln a type-writing machine, the combination with the paper carriage, a rockshal't journaled therein, the platen, arms on said shaft carrying said platen, and` means for shifting saidarms and platen, of a ratchet-Wheel on the shaft of said platen, a spacing lever pivoted to the carriage, and a spring-actuated pawl pivoted to said lever and adapted and arranged to engage said ratchet-wheel in either the normal or shifted position of the platen, substantially as' described.

A 50.l In a typewriting machine, the combination of the platen C, the ratchet 19 turning therewith, the spring pressed spacing lever 21, the bell-crank pawl 23 pivoted to the lever 21, the spring 22LL tending to throw the pawl into engagement with the ratchet, and the stop 24 operating to hold it Lout of engagement therewith, substantially a's described.

51. ln a typewriting machine, the c ombination of the paper carriage frame Q, the rock-shaft V mounted therein, the arms U carried by the rock-shaft, the platen C mounted in the arms U, the ratchet 19 fast upon the spindle of the platen C, means for rocking the shaft V to shift the platen, the spacing-lever 21 fulcrumcd upon the paper carriage frame Q, and vthe pawl 22 carried by the lever 21 and cooperating with the ratchet 19, substantially as described.

52. In a typewriting machine, the combination of the paper carriage frame Q, the

rock-shaft V mounted therein, the arms U carried by said rock-shaft, the platen C mounted in the arms U, the ratchet 19 fast upon the spindle of the platen C, means for rocking the shaft V to shift the platen, the spacing-lever 21 fulcrumed upon the paper carriage frame Q, the bell-crank pawl 23 22 pivoted to the lever 21, the spring 22a tending to throw said pawl into engagement with the ratchet', and the stop 24 operating to hold it out of engagement therewith, substantially as described.

' 53. ln a ty]')ei\fritin,gr machine, the combination, with the escapement mechanism controlling the movements of the paper carriage and the feed-mechanism for the inking lribbon,of a universal bar lying in the path of movement of both the type levers and the spacing-bar levers, with means intermediate said bar and the escapement mechanism for operating said mechanism to advance the paper carriage vwhenever said bar is depressed either by a type-lever or by the sparing-bar levers, a second. universallbar lying in the path of movement of the levers only, and

means intermediate said second bar and the ribbon-feeding mechanism for causing the latter to be operated only when a type lever is depressed, substantially as described.

' 54. ln a typewriting machine, the com- 125 bination, with the escapement mechanism for r,ontrolling the movement of the paper y carriage and the feed-mecl'ianisni for the inking ribbon, ol' the rock-shaft 1j and means intermediate the same and the escapement same and the ribbon-feedn mechanism for operating the latter when the the supporting levers t? the spacing-bar 1,'

the rook-shaft 9 and means intermediate the mechanism for actuating the latter, and t e universal-bar l1 carried by the arms l0 rojeeting'from the rock-shaft 9- and under ing the' typelevers` L only, whereby th,

e esoapement .t

mechanism jwill be'opereted to vanee the paper 'carriage by the depression of either .a

'type-lever or the spacing-bell', and whereby *the ribbon-feeding mechanism will be operl5 ated only by depression of a, typelever, substantially as described.

HARVEY L.

Witnesses:

E. O. ABBOTT, M. E. SHIELDs.

Images