US948799A - Type-writing machine. - Google Patents

Description

TYPE WRITINGMAOHINE. APPLICATION FILED JAN. 28, 1907. v Patented Feb. 8. 1910.

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0 C P DMMMM' HIE ATTEIRNEY ANDREW 2iv GRAHAM 6a.. PHDYO-LITHOGRAPNERS. WASHINGTON D. C.

A. M. STONE.

TYPE WRITING MACHINE.

APPLIOATION TILED JAN. 28, 1907.

Patented Feb.'8,1910.

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A STONE. TYPE WRITING MACHINE APPLICATION FILED .TA-N. 28, 1907.

' 948,799] "Patented Feb. 8, 1910.

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1-!!5 TTDFENNEY- ALM. STONE. TYPE WRITING MAO HINB. APPLIOATIONTILED M128, 1907.

Patntea Feb. 8,1910.

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TTEIR Y' UNITED sT TEs PATENT OFFICE.

ALVI MARTIN sToNE, 0E LoNnoN, ENGLAND, ASSIGNOR To THE MONARGI-I TYPE- WEITEE COMPANY, oE SYRACUSE, NEw Yon-K, A CORPORATION OF NEW YORK.

TYPE-WEITINC- MACHINE.

Specification of Letters Patent.

Patented Feb. 8, 1910.

To all whom it may concern:

Be it knownthat I, ALVIN MARTIN STONE,

citizen of theUnited States, and resident of London, England, have invented certain new and useful Improvements in TypelVriting Machines, of which the following is a specification.

My invention relates to paper feeding mechanism for typewriting machines, and more particularly to what is known as condensed record devices.

The main object of my invention is to provide improved means for facilitating condensed record work.

To the above and other ends, the invention consists in the features of construction,

combinations of devices and arrangements of parts hereinafter described and particularly pointed out in the claims.

Theinvent-ion is shown as applied to a No. 3 Monarch typewriting machine but the nature of the invention is such that it may be readily adapted to other forms of writing machines.

The usual paper feeding equipment of the Monarch machine comprlses mam and auxiliary paper feed rollers extending lengthwise of the platen at the rear and lower side thereof below the printing line and a pair of paper fingers arranged above the printing line at the front and upper side of the platen and adjustable lengthwise of a rod or bar on which they are mounted, said bar being detachably secured to the platen frame in a fixed relation therewith. Devices are also provided for releasing the paper feed rollers, said releasing means comprising a hand operated rock shaft.

In carrying out my invention in the present instance, I employ the usual Monarch paper fingers as terminal paper fingers and arrange them to cooperate with the platen near the ends thereof. Between these terminal paper fingers are arranged a pair of F supplementary paper fingers, these latter being mounted upon a rod or bar which is journaled on supports detachably secured to the sides of the platen carrier, this last mentioned rod or bar being spring controlled and having adjustably secured near one of its ends a depending releasing device or finger. Behind this finger an upright or armis fixed to the feed roll release rock shaft, said upright carrying a forwardly projecting arm which is adapted to actuate lease mechanism is operated, thus swinging the inner or supplementary paper fingers away from the platen and rendering them inoperative, without, however, affecting the outer or terminal fingers which still remain in operative position. i I

My invention is especially designed to facilitate that kind of commercial work commonly called condensed record billing, wherein as the bill is written a duplicate is simultaneously written on the record or sales sheet through an interposed sheet of carbon paper. Preferably the regular or terminal paper fingers are arranged to cooperate only with the record sheet (or in some cases with both the record sheet and the carbon sheet) while the supplementary paper fingers cooperate with the bill sheet, which is narrower than the record sheet, said bill sheet at no time being under the control of the terminal paper fingers. When my improvements are made use of and the feed roller releasing mechanism is operated the supplementary paper fingers are automatically swung to inoperative position and locked in such position so that the bill sheet and carbon sheet (or in some cases the bill sheet only) may be readily withdrawn from the machine after the bill has been written, without disturbing the record sheet which is held by and remains under the control of the terminal or regular paper fingers. A fresh bill sheet and carbon sheet may be inserted and ushed around the platen until it is in positlon for writing the first line, whereupon the feed roller releasing mechanism may be unlocked and the feed rollers and supplementary paper fingers rendered again operative to cooperate with the fresh bill sheet. Thereafter during the usual line spacing movements of the platen the bill and carbon sheets and the record sheet will be fed together through the machine and the items of the new bill will be reproduced on the record sheet close to the last item of the reproduction of the immediately preceding bill. This is a brief outline of the preferred method of using my improvements but it is, of course, to be understood that the invention may be used in other ways, and that its novel principles may be embodied in other forms of mechanism.

In the accompanying drawings, Figure 1 is a fragmentary full-sized front elevation of the carriage of a No. 3 Monarch typewriting machine embodying my invention. Fig. 2 is an enlarged fragmentary end view, partly in section, of the platen carrier and mounting, and showing my invention in combination therewith. Fig. 3 is an enlarged diagrammatic end view corresponding with Fig. 2. Fig. 4 is a diagrammatic end view like Fig. 3 but showing certain of the parts in different relations from those in which they appear in said Fig. 3. Fig. 5 is a diagrammatic end view showing certain of the parts in still different relations from those in which they appear in Figs. 3 and 4. Fig. 6 is an enlarged fragmentary end view looked at from the left and show well as the finger piece with which said detent directly cooperates.

In the drawings, 1 indicates the top plate of the machine and 2 brackets (only one of;

which is shown) fixed on the top plate, said brackets having oppositely grooved trackways 3 secured to them by screws 4. Antifriction balls 5 cooperate with the grooved track-ways and with oppositely grooved ways in a rear or slide bar 6 of a platen frame or carrier, said platen carrier comprising also end or side bars 7 extending horizontally forward from the ends of said slide bar. A rotary platen 8 is journaled in the side bars 7 and is operatively connected at its left-hand end with a line space ratchet wheel 9 which is adapted to be operated by the usual or suitable line space actuating devices for turning the ratchet wheel and platen in line spacing direction. In addition to the line space actuating devices referred to, it will be understood that the usual detent (not shown) is provided, said detent cooperating with the line space ratchet wheel 9 toprevent overthrow of the platen in the turning movements thereof and to prevent accidental displacement of the platen from the line space positions to which it may be successively turned; and furthermore that the usual finger wheels are pro-,

vided at the ends of the platen shaft.

Pivoted at 10 in lugs 11 projecting forwardly from the rear bar 6 (see Fig. 2) are downwardly and forwardly projecting arms 12 in which is mounted a shaft 13 carrying the main feed roller 14, said roller compris- Fig. 8 is an ing one or more sections. Pivoted at 15 in the lower end portions of the arms 12 are small wheels 16 which are adapted to cooperate with arms 17 pivoted at 18 in the lugs 11, said arms 17 at their forward end portions carrying a feed roller shaft 19 on which is mounted one or more auxiliary feed rollers 20. Springs 21, secured to the hanger arms 12, cooperate with fixed abutments 22 on the lugs 11 to maintain the feed roller 14 normally in cooperative relation or contact with the platen, while springs 23 secured to the hanger arms 17 tend to maintain the feed rollers 20 in cooperative relation or contact with the platen. The feed rollers protrude through openings in a paper apron 24 which extends from side to side of the machine beneath and at the rear of the platen and at its ends is coiled or hooked around a shaft 25 journaled in the side bars of the carriage. The connections of said paper' apron with said shaft are omitted from the drawings for the sake of clearness, but it will be understood that the paper apron 24 is pivotally connected with the shaft 25. Flat springs 26 secured on the hanger arms 17 cooperate with the paper apron to maintain it normally close to the platen, as shown in Figs. 2 and 3 The paper feeding, guiding and controlling devices thus far described are substantially the same as the corresponding parts of the Monarch machine, and it is deemed unnecessary to here describe them in greater detail. Said paper feeding, guiding and controlling devices may be moved away from the platen, or released as it is called, and thereby rendered inoperative by any suitable means, such as that shown in the drawings.

Projecting from the shaft 25 above each hanger arm 12 are lugs 27 and fixed to and projecting upwardly and forwardly at right angles from each of said hanger arms. is a lug or pin 28 with which the associate lug 27 is adapted to cooperate. The left-hand end of the shaft 25 projects beyond the lefthand side bar 7 and has fixed to it by a headed screw 29 (Fig. 6) a finger piece or lever 30, the upper end portion of which is bent or twisted at right angles and the rear edge of which, a short distance above the screw 29, normally contacts with a stop pin 31 fixed to and projecting laterally from the side bar 7. A lug 32, extending rearwardly and upwardly from the lower portion of the release lever 30, is adapted to contact with the stop pin 31 when the release lever is pulled forwardly to limit the forward motion of said lever and prevent excess movement of the parts. When the release lever is pulled forwardly it operates to turn the rock shaft 25 and causes thelugs 27 thereon to cooperate with the lugs 28 on the hanger arms 12 to push said arms 12 downwardly and rearwardly about their pivots 10 and result that the paper apron 24 is relieved of the pressure of said springs and swings downwardly about the shaft 25 as a center and away from the platen to the position shown in Fig. 4.

Itis preferable to lock the paper feed rollers and the paper apron away from the platen in the positions shown in Fig. 4 in order that the operator may have bothhands free for adjusting the work sheets, and for this purpose any suitable locking or detaining means may be employed, that shown in the drawings comprising a horizontally disposed spring arm 33secured at its forward end to the platen frame in a manner presently to be described and having at its free or rear end a pin or stop 33 having a beveled face, as clearly shown in Fig. 8. Then the release lever 30? is. pulled forward its upper portion cooperates with the beveled face of the in 33 to push the pin out of the way, ben ing or flexing the arm 33 rightward.

After said lever 30 has been pulled forwardly past the pin 33 the latter will spring back to normal position and will lock the release lever 30 forwardly in the position shown by dotted lines in Fig. 8 and by the full lines in Fig.4. WVhen the release lever is locked in its @forward position the feed rollers 14 and 20 will be inoperative as shown in Fig. 4.

The detent device or lock for the release lever above briefly described is the invention ofThomas J. C00 and forms in art the subject-matter of his pending app ica tion, Serial No. 345,511, filed November 28, 1906. Said detent device is not therefore claimed herein per se.

The paper feeding devices thus far described, comprising the main and auxiliary paper feed rollers, are adapted to cooperate with the work sheets below the writing line and at the rear and lower side of the platen. When said paper feed devices are released and locked out of operation, as just explained, bothihands of the operator are free to adjust the paper or work sheet to remove it or enter a new work sheet in the machine, said work sheet, as is well understood, passing down over the usual paper table 34 (Fig: 2) at the rear of the platen, thence over the paper apron 24 and between the platen. and the paper feed rollers and between the platen and the usual double employ these paper fingers as terminal paplaten and carriage scale 35, then upwardly at the front of the platen where it may be guided by suitable paper controlling devices or paper fingers. These paper fingers may be like the usual Monarch paper fingers, each comprising an off-set guiding portion 36, a feed roll 37 carried by a bifurcated arm 38, and a hanger arm or support 39 on which said guiding portion 36 and the bifurcated arm 38 carrying the feed roll are pivotally supported. These paper fingers are not herein claimed by me per 86 as they are the invention of George A. Seib. The paper guiding portion 36 is provided with a spring 40 tending to press, it constantly toward the platen and the feed roll arm 38 has seated in it a spring plunger 41 which tends to press the feed roll 37 toward the platen. I11 the present instance I prefer to per fingers to cooperate with a comparatively wide work sheet such as a record or sales sheet and to permit a narrow sheet, such as a bill sheet to pass between said paper fingers without being touched or controlled by them.

The record sheets sometimes employed are stiff and heavy and in order to better control them I prefer to employ an additional spring on each terminal paper finger to reinforce the spring plunger 41 and increase the pressure of the feed roll 37 against the platen. The additional spring is numbered 42 in the drawings and one end of it is connected to a pin 43 extending laterally from the associate hanger arm 39 and the other end to a pin 44 extending laterally from the arm 38 (Figs. 1 and 2). When the feed rolls 37 are in cooperative engagement with the platen, as shown in Fig. 2, the additional springs 42 tend to increase the pressure of their associate feed rolls 37 against the platen but when said feed rolls are thrown off said springs 42 will assist the spring plungers 41 and tend to maintain said feed 110 rolls inoperative, theline of pull of said springs being transferred to the opposite side of the pivots of the arms 38.

The rear end portion of the hanger arm 39 of each terminal paper'finger is provided 115 with a laterally extending hub 45 through which passes a supporting rod or bar 46, said rod being secured in lugs 47 extending upwardly from the side bars 7 of the platen carrier. Headed screws 48 cooperate with 120 the supporting rod 46 at its ends and serve to retain said rod in fixed relation with the lugs 47 and the platen carrier, said screws passing through openings in said lugs 47 and the heads of said screws being adapted 12 to abut against the outer faces of said lugs. Between the head of the left-hand screw 48 and the face of the left-hand lug 47 the spring detent arm 33 is arranged, it being clamped between the head of the screw 48 1 and the face of the lug 47 as shown in Figs. 6 and S. The hanger arms 39have a tongue and groove connection with the supporting rod 46 so that while the hanger arms 39 may be slid along said rod lengthwise thereof they are held from rotary movement on said rod.

As has been stated the paper fingers heretofore described are preferably employed as terminal paper fingers coiiperating with the platen near its ends and serving to assist in controlling a wide or record work sheet. In addition to these so-called terminal paper fingers I employ a pair of inner or supplementary paper fingers mounted independently of the terminal paper fingers and arranged between them. The supplementary paper fingers may be of any desired construction, those shown in the drawings each comprising a paper guiding portion 49 se-.

cured to a lateral off-set 50 at the lower end of a sheet-meta1 arm 51, said arm being bent into the shape of a U at its upper end portion to provide bearing portions 52, the latter being formed with key-hole slots to receive a supporting rod or bar having a spline 54 which is somewhat narrower than the portions of the keyhole slots with which said spline coiiperates, as clearly shown in Fig. 2. Arranged on the splined rod 53 between the bearing portions 52 of each supplementary paper finger is a sleeve 55 (Fig. 1), said sleeve being formed with a key-hole slot which fits closely on said spline d rod so that the sleeve 55 has no motion of rotation on said rod, although it may be slid freely along said rod. Fixed to the outer end portion of each sleeve 55 and abutting the neighboring bearing portion 52 of the paper finger is a collar 56 provided with crown ratchet teeth which cotiperate with corresponding ratchet teeth formed on a collar 57 which is loosely mounted on the sleeve A coiled spring 58 surrounds each sleeve 55, one end of said spring being secured in the associate collar 57 and the other end thereof being secured to the bearing portion 52 of the arm 51 of the supplementary paper fin ger. The supplementary paper finger described is essentially the same in construction as that disclosed in the patent to Burnham 0. Stickney, No. 658,931, dated Octoher 2nd, 1900. At the end portions of the supporting rod or bar 53, the spline 54: is cut away leaving the rod cylindrical. The right-hand cylindrical portion of the rod 53 bears in an opening 59 in a supporting bracket or arm 60 detachably secured by a thumb screw 61 to the right-hand side bar 7 of the platen carrier (Figs. 1 and 7). Referring especially to Figs. 1 and 6, the left-hand cylindrical portion of the rod 53 bears in an angular supporting bracket or arm 62 which is detachably secured to a hanger arm 63, the latter being fixedly secured to the rod or bar 46 and curvingfon wardly therefrom as shown in Fig. 6. The hanger arm 63 resembles the hanger arms 39 of the terminal paper fingers and preferably has a small tongue-and-groove connection with the supporting rod L6, but is prevented from moving endwise of said rod by any suitable means. Extending laterally from the left-hand end portion of the hanger arm 63 is a dowel or pin 64, the

lower end portion of the supporting bracket 62 being provided with an opening which fits over the dowel. Said supporting bracket 62 is further secured to the hanger arm 63 by a thumb screw 65. The arrangement is such that while the hangerarm 62 may be readily detached, it is, when properly adjusted, maintained in a fixed relation with the hanger arm 63 and through the latter with the platen carrier. A coiled spring 66 has its lower end secured to a pin 67 projecting from the lower end portion of the hanger arm 63, the upper end of said spring being secured to a pin 68 fixed to the rod 53. The rod 53 is held from endwise movement by the cotiperation between the ends of the spline 54: with the inner faces of the supporting brackets 62 and 60, but said rod may turn or rotate in its bearings in said brackets, the tendency of' the spring 66 being to rotate said rod so that its top will turn forwardly. WVhen the auxiliary paper fingers are in operative contact with the platen, those ends of their associate springs 58 which are attached directly to the paper fingers become in effect fixed and the tendency of said springs 58 tounwind transmits a rotary motion to the collars 57 and 56 and through the latter to the sleeve 55 which in turn transmits the impulse to the rod or shaft 53 with which it is closely connected. Consequently it will be seen the paper finger springs 58 tend to turn the rod or shaft 53 one way while the spring 66 tends to turn said rod the other way. The two collars 56 and 57 afford a ready means of regulating the tension of the associate spring 58.

Referring now to the means shown for automatically rendering the supplementary paper fingers inoperative when the paper feed roller releasing devices are actuated, said means comprises a releasing member or finger 69 adjustably secured to the righthand end portion of the rod 53 (Figs. 1, 3, 4 and 5). The lower portion 69 of the release member is flat and thin and the upper portion is thickened and is split as indicated at 70, the lower end of the split 7 Orunning into a cylindrical opening through which the rod or shaft 53 passes. A headed screw 71 connects the split portionsof the finger 69 and when tightened holds said finger in a fixed relation with the rod 53. By loosening the screw 71 the finger 69 may be adjusted both lengthwise of the rod 53 and circumferentially thereof. Coiiperative with the rear" face of the part 69 of the releasing finger isfla normally horizontally disposed arm 72, the front end whereof is adapted to contact with the part 69 while the rear end which is provided with a hole through which the release rock shaft passes. A set screw 77 serves tosecure the block 76 and the arm 75 in. fixed relation with saidrock shaft 25.

This relation may be varied by loosening the set screw so as to enable the block 76 and rod 75to be turned on said rock shaft 25 or moved longitudinally thereof to desiredpo sition. The arm 7 2 may be adjusted on the arm 75by loosening the screw 74 so as to enablethe collar 73 to be slid up and down on the arm 75 to vary the extent of rotation imparted by the arms 72 and 69 to the shaft 52. It will be understood that when the release lever 30 is pulled forward, turning the rock shaft 25, the arm 75 will be: rocked forward, carrying with it the arm 72 and causing the front end of the latter to push against the depending portion 69* of the releasing finger, swinging the latter forwardly and turning the rock shaft 53 until the spline on the latter contacts with the keyhole slots in the bearing portions 52 of the supplementary paper fingers and then moving said paper fingers automatically out of operative position or from the position illustrated in Figs. 2 and 3 to that in Fig. 4. The arm 72 acts as a stop to limit the rotation of the shaft 53 under the impulse of the spring 66, and said spring and stop nor mally hold said shaft in a fixed position as far as rotation is concerned. The parts are so adjusted that when the finger 69 is in its normal position against the rod 72 and'the paper fingers are against the platen, the rib 54: of the shaft 53. occupies an intermediate position in the key-hole slots in the bearing portions 52 of the supplementary paper fingers, as shown in Fig. 2, said rib or spline not being in contact with either the upper or the lower walls of said slots. This insures that the springs 58 may press the paper fingers against the platen and affords a slight motion of said paper fingers away from the platen without turning the shaft 53. It will be apparent that the mounting of the paper finger rod or shaft 53 and the mode of connecting the paper fingers there .with are such that the paper finger springs might be increased in tension to such an extent by the introduction of a plurality or pile of sheets of paper to the platen that the rod or shaft 53 would be rocked and would act on the spring 66 in such a way as to spring 66. The rod or shaft 53 provides in fact an anchorage for one end of each ofthe springs 58, the position of which anchorage may be automatically varied as varying thicknesses of paper pass under the paper fingers, thus automatically relieving to some sheet may freely pass. This space is preferably long enough to receive a bill or record sheet, but as shown in Fig. l, the upper edge of the scale plate 35 is not cut away near the end portions thereof so that the upper edge of the end portions of said scale may coiiperate with the record or wider sheet outside the side edges of the narrow bill sheet. lVith the scale plate 35 cutaway as shown, it will be apparent from a. consideration of Fig. 4: that when the release lever 30 is pulled forward and looked, all of the paper feeding devices which coiiperate with the bill sheet are rendered inoperative and locked in inoperative position so that the bill sheet may be moved freely around the platen for adjustment or may be withdrawn readily from the machine and a new bill sheet may be inserted. During this operation, as will be apparent from a consideration of Fig. 1, the record sheet will be controlled by the terminal paper fingers and will be held in the position to which it was last adjusted through the line spacing devices.

After what hasbeen said it is not deemed necessary to explain at great length the operation of the improvements hereinbefore de scribed. As has been stated, they may be made use of to advantage in that form of commercial work known as condensed record billing. The terminal paper fingers are adjusted to coperate properly with the side portions of the wide record sheet as shown in Fig. 1, said record sheet being designated by the reference character a. The supplementary paper fingers are adjusted lengthwise of the rod 53 so as to cotiperate properly with the side portions of the bill sheet designated by the reference character b. In some forms of work the interposed carbon sheet or inlay is of the same width as the record sheet a and is adapted to be controlled by the terminal paper fingers and to remain in the machine as long as the record sheet does, or until the latter has been completely filled. In other cases the interposed carbon sheet is only as wide as the bill sheet and is introduced into the machine and removed therefrom with said bill sheet, being controlled bythe supplementary paper fingers, but not by the terminal paper fingers. The

narrower width of carbon sheets is made use of in those forms of work wherein certain entries are made on the record sheet which are not required on the bill sheet, as, for example, in some forms of way-bills where such entries as those coming. under the heads destination, number of packages, description, weights, rates are duplicated and other entries such as those coming under the head of paid on, folio, cartage, underoharge, overcharge, ledger, etc. are to be written only on the record sheet and outside of the field of and to the right of the overlying carbon sheet. In eithercase the record sheet is introduced into the machine and fed around with the platen in the usual way until it is positioned for writing the first line. Thereafter the feed roll release lever may be pulled forward and locked, enabling the bill sheet to be introduced either at the front or rear as is most convenient, and passed around the platen under the supplementary paper fingers until said bill sheet is also positioned for writing the first line. Thereupon the release lever may be freed from the detent device or lock, permitting the various paper feeding devices which were locked out of operation to return to operative positions. The items on the bill may then be written in the usual way, said items being reproduced through the interposed carbon sheet on the record sheet and thereafter the release lever may be operated to free the main and supplementary feed rollers and at the same time that said feed rollers are released to automatically release the supplementary paperfingers and lock them out, enabling the written bill to be withdrawn and a new bill sheet to be introduced without disturbing the record sheet a which at all times remains under the ,control of the terminal paper fingers. If there is considerable writing to be done on the bill sheet so that when the latter is completed its lower edge has been fed forwardly so far that it has passed out of the control of the main and auxiliary paper feed rollers, then the operator instead of operating the release lever 30 may merely grasp the lower end of the portion 69 of the releasing finger 69 and pull the latter forwardly, thereby rendering the supplementary paper fingers inoperative and enabling the bill sheet to be withdrawn without affecting either the paper feed rollers or the rock shaft 25 and the automatic releasing devices carried thereby, including the arms 7 5 and 72. This op eration will be understood from a consideration of Fig. 5, wherein the releasing finger 69 is shown pulled away from the arm 72, effecting a release of the supplementary paper fingers without disturbing said arm 7 2 or the parts connected therewith. From what has been said it will be apparent that the releasing finger performs a double function, not only cooperating with the arms 7 2 to automatically release the supplementary paper fingers but also serving as a finger piece to enable a manual release of said supplementary paper fingers to be effected vention.

What I claim as new and desire to secure by Letters'Patent, is

1. In a visible writing machine, the combination of a platen carrier, a platen, paper controlling devices cooperating with said platen at the lower side thereof, terminal paper fingers cooperating with said platen at the front side thereof and near its ends, supporting brackets on said platen carrier, a rod or bar carried by and rotatable on said brackets, and supplementary paper fingers on said rod or bar, the latter being,

rotatable on its axis to render said supplementary paper fingers operative or inoperative.

2. In a visible writing machine, the combination of a platen carrier, a platen, paper controlling devices cooperating with said platen at the, lower side thereof, terminal paper fingers, cooperating with said platen at the front side thereof and near its ends, supporting brackets on said platen carrier, a rod or bar carried by and rotatable on said brackets, and supplementary paper fingers on ported on the platen frame, terminal'paper fingers adjustable lengthwise of said rod and cooperating with the platen at the front side thereof and near its ends, detachable supporting brackets on said platen carrier, a rod or bar carried by and rotatable on said brackets, and supplementary paper fingers on said rod or bar, the latter being rotatable on its axis to render said supplementary paper fingers operative or inoperative.

4:. In a visible writing machine, the combination of a platen carrier, a platen, paper controlling devices cooperating with said platen at the lower side thereof, terminal paper fingerscooperating with said platen at the front side thereof and near its ends, supporting brackets on saidplaten carrier,

a rod or bar carried by and rotatable on said brackets, a spring tending constantly to turn said rod or bar in one direction, and supplementary paper fingers on said rod or bar, the latter being rotatable on its axis at will against said spring to render said supplementary paper fingers inoperative.

In a visible writing machine, the combination of a platen carrier, a platen, paper controlling devices cooperating with said platen at the lower side thereof, terminal paper fingers cooperating with said platen at the front side thereof and near its ends, supporting brackets on said platen carrier, a rod or bar carried by and rotatable on said brackets, a spring tending constantly to turn said rod or bar in one direction, supple mentary paper fingers on said rod or bar,

the latter being rotatable on its axis at will against said spring to render said supplementary paper fingers inoperative, and ,springs connected with said paper fingers and tending normallyto maintain them in cooperative engagement with the platen and to turn said rod or bar in the opposite direction from that in which the first recited spring tends to turn it. i T

i 6. In a typewriting machine, the combination of a platen carrier, a platen thereon, a rod or bar rotatably mounted on 'said platen carrier and extending lengthwise of said platen, a spring tending constantly to turn said rod or bar in one direction, paper fingers on said rodor bar adjustable longitudinally thereof and each mounted for limited rotary motion thereon, said rod or bar being rotatable on its axis against said spring to render said paper fingers inoperative, and individual springs between said paper fingers and said rod or bar, whereby the paper fingers are rendered self-adjusting for varying thicknesses or piles of work sheets without undue increase of pressure on said work sheets.

7. In a typewriting machine, the combination of a platen carrier, a platen thereon, a rod or bar rotatably mounted on said platen carrier and extending lengthwise of said platen, a spring tending constantly to turn said rod or bar in one direction, paper fingers on said rod or bar and adjustable longitudinally thereof, said rod or bar being rotatable on its axis against said spring to render said paper fingers inoperative, and springs connected with said paper fingers and tending normally to maintain them in cooperative engagement with the platen and to turn said rod or bar in the opposite direction from which said first recited spring tends to turn it, whereby the paper fingers are rendered self-adjusting for varying thicknesses or piles of work sheets without. undue increase of pressure on said work sheets. a

In a typewriting machine, the combination of a platen frame, a platen mounted thereon, a rod or bar rotatably mounted on said platen frame and extending longitudinally of said platen, a paper finger adjustable lengthwise of said rod or bar and having a limited motion of rotation independent thereof and toward and away from the platen, opposing springs tending to turn said rod or bar in opposite directions and tending to maintain said paper fingers in cooperation with the platen, one of said springs being connected with said paper finger, whereby the paper fingers are rendered self-adjusting for varying thicknesses or piles of work sheets without undue increase of pressure on said work sheets.

9. In a front-strike typewriting machine, the combination of a platen, a paper feed roller normally springpressed into cooperative engagementv with said platen, means for releasing said feed roller at will, a plurality of paper fingers cooperative with said platen above the writing line, and means acting on certain only of said paper fingers for automatically rendering said certain paper fingers inoperative when said feed roller releasing means is actuated, certain other of said paper fingers remaining unaffected by the operation of the last recited means.

10. In a typewriting machine, the combination of a platen carrier, arms pivoted thereon and carrying a paper feed roller, said feed roller being spring-pressed toward the platen, means for releasing said feed roller at will, a rod or bar rotatable on its own axis on said platen carrier, a paper finger adjustable lengthwise of said bar and spring-pressed toward the platen, and means for automatically rotating said bar and swinging said paper finger away fro-m the platen about the axis of said rod or bar as a fixed center when the feed roller releasing means is actuated.

11. In a front strike typewriting machine, the combination of a platen, a paper feed roller at the introductory side of the platen, terminal paper fingers cooperating with the platen near its ends and disposed above the writing line, supplementary paper fingers cooperating with the platen and arranged above the writing line and between said ter minal paper fingers, means for releasing said paper feed roller, and automatic means for rendering said supplementary paper fingers inoperatlve when said feed roller releasing means is actuated, said automatic means be ing inoperative to release said terminal paper fingers.

12. In a typewriting machine, the comblnation of a platen carrier, a platen thereon, a paper feed roller extending substantially throughout the length of said platen, a rod or bar on said platen carrier, terminal paper fingers mounted on said rod or bar and adjustable lengthwise thereof, a second rod or bar rotatably mounted on said platen carrier, supplementary paper fingers on said second rod or bar and adjustable lengthwise thereof, means for releasing said paper feed roller, and automatic means operating when the feed roller releasing means is actuated to rotate said second rod or bar and render said supplementary paper fingers inoperative, said automatic means being inoperative to release said terminal paper fingers.

13. In a front strike typewriting machine, the combination of a platen, a main paper feed roller extending substantially the full length thereof, an auxiliary paper feed roller, hand operated means for releasing said main and auxiliary paper feed rollers, terminal paper fingers cooperating with the platen above the writing line and adjustable lengthwise of the platen, supplementary paper fingers cooperating with the platen above the writing line and adjustable lengthwise of the platen and arranged between said terminal paper fingers, and means operating automatically when said feed roller releasing means is actuated to render said supplementary paper fingers inoperative without releasing said terminal paper fingers.

lt. In a typewriting machine, the combi nation of a platen carrier, a platen thereon, arms pivoted on said platen carrier and supporting a paper feed roller which extends lengthwise of said platen, a rod or bar rotatable on its own axis on said platen carrier and extending for the length of the platen, paper fingers mounted on and adjustable lengthwise of said rod or bar, a. hand-operated rock shaft parallel with said rotatable bar and carrying devices for actuating said arms to release said paper feed roller, and means carried by said'rock shaft and operating to rotate said rod or bar to render said paper fingers inoperative.

15. In a typewriting machine, the combination of a platen carrier, a platen thereon, arms pivoted on said platen carrier and supporting a paper feed roller extending lengthwise of said platen, a rod or bar rotatably mounted on said platen frame and extending for the length of the platen, paper fingers mounted on and adjustable lengthwise of said rod or bar, a releasing finger depending from-said rod or bar, a hand operated rock shaft parallel with said rotatable rod or bar and carrying devices cooperating with said arms to release said feed roller, and a device fixed to said rock shaft and cooperating with said releasing finger, when said rock shaft is actuated, to rotate said rod or bar and render said paper fingers inoperative.

16. In a typewriting machine, the combination of a platen carrier, a platen thereon, arms pivoted on said platen carrier and sup porting a paper feed roller extending lengthwise of said platen, terminal paper fingers cooperating with said platen at the opposite side thereoffrom said feed roller, a rod or bar rotatable on said platen carrier, supplementary paper fingers mounted on said rod or bar and adjustable lengthwise thereof, said supplementary paper fingers being arranged between said terminal paper fingers, a releasing finger fixed to said rod or bar, a hand-actuated rock shaft carrying devices cooperative with said arms to release said paper feed roller; and an arm fixedlyconnected with said rock shaft and operating, when said rock shaft is actuated, on said releasing finger to rotate said rod or bar and render said supplementary paper fingers inoperative without releasing said terminal paper fingers.

17. In a typewriting machine, the combination of a platen, a paper feed roller 00- operative therewith, a paper finger, means for releasing the feed roller, and means operating automatically to render said paper finger inoperative when the feed roller releasing means is actuated, said paper finger being also releasable independently of said paper feed roller releasing means.

18. In a typewriting machine, the combination of a platen carrier, a platen thereon,arms pivoted on said platen carrier and carrying a paper feed roller, hand actuated means for swinging said arms away from said platen to release said feed roller, a paper finger mounted on the platen carrier independently of said paper feed roller and spring-pressed toward the platen, and means for automatically rendering said paper finger inoperative when said feed roller re leasing means is actuated, said paper finger being also releasable independently of said feed roller releasing means.

19. In a typewriting machine, the combination of a platen carrier; a platen thereon; a paper feed roller extending lengthwise of the platen and normally cooperative therewith, means for releasing said paper feed roller including a hand-operated rock shaft, a rod or bar rotatably mounted on said platen carrier, a paper finger mounted on and adjustable lengthwise of said rod or bar, devices on said rock shaft operative to rotate said rod or bar to render said paper finger inoperative, said rod or bar being also capable of being turned by hand independently of said feed roll releasing means to render said paper finger inoperative.

20. In a typewriting machine, the combination of a platen carrier, a platen thereon, a paper feed roller extending lengthwise of the platen and normally cooperative therewith, means for releasing said paper feed roller including a hand-operated rock shaft, a rod or bar rotatably mounted on said platen carrier, a releasing finger on said rod or bar, and devices on said rock shaft cooperative with said releasing finger when a finger pieceto actuate said paper finger independently of said rock shaft and the devices thereon.

21. In a typewriting machine, the com bination of a platen frame, aplaten there on, main paperfingers, arod orbar' journaled on said platen frame, paper fingers adjustablejlen-gthwise of said rod or bar and normally maintained in spring-pressed cooperation with the platen, and 'a finger piece on said rod or bar operative to turn the same and release said paper fingers.

22. In a typewriting machine, the combination of a platen carrier, a platen thereon, arms pivoted on said platen carrier and supporting a paper feed roller extending lengthwise of said platen, a rod or bar rotatably mounted on said platen frame, paper fingers mounted on and adjustable lengthwise of said rod or bar, a releasing finger depending from said rod or bar, a hand operated rock shaft carrying devices cooperating with said arms to release said feed roller, a device fixed to said rock shaft and cooperating with said releasing finger, when said rock shaft is actuated, to rotate said rod or bar and render said paper fingers inoperative, and means for maintaining said paper feed roller and said paper finger locked in inoperative posit-ion.

23. In a typewriting machine, the combination of a platen carrier, a platen thereon, arms pivoted on said platen carrier and supporting a paper feed roller extending lengthwise of said platen, a rock shaft carrying devices for releasing said feed roller, a finger piece for actuating said rock shaft, a rod or bar rotatable on the platen carrier, paper fingers on said rod or bar, a releasing finger depending from said rod or bar, a

device fixed to said rock shaft and cooperating with said releasing finger, when said rock shaft is actuated, to rotate said rod or bar and render said paper fingers inoperative, and a detent cooperative with said finger piece to lock said feed roller in released or inoperative position and to lock. saidpaper fingers in inoperative position.

. machine and arranged above the platen,

a plurality of main spring pressed paper fingers on said rod, a supplemental paper finger rodrotatably mounted in the platen frame andalso extending across the machine and arranged'abovesaid platen, and a plu rality of paper fingers mounted on saidsupplemental rod, the supplemental paper fingers being arranged within the working points of the main paper fingers;

26: In a'front strike typewriting machine,

the combination of a platen frame, aplaten, a pair of rods arranged thereabove and extending across the machine and bothindependently mounted in the platenframe, one of said rods beingprovidedwith a pair of record sheet paper feeding devices and the other of saidrodsbeing providedwith a pair of invoice sheet paper feeding devices, all of said feeding devices extending from their supporting rods toward the printing line and terminating so. that the pair of invoice feeding devices are arranged between the pair of record sheet feeding devices, and means for throwing off only the invoice sheet feeding devices.

27. In a front strike typewriting machine, the combination of a platen, a paper finger rod extending across the machine and ar-. ranged above the platen, a plurality of main, spring-pressed paper-fingers on said rod, a supplemental paper finger rod also extending across the machine and arranged above said platen, and a plurality of paper-fingers mounted on said supplemental rod, the supplemental paper-fingers being arranged within the working points of the main paperfingers.

28. In a front strike typewriting machine, the combination of a platen, a main rod arranged thereabove and extending across the machine, paper feeding devices adjustably mounted on said rod and extending toward the printing point, a supplemental rod also arranged above the platen and extending across the machine, and supplemental adjustable paper feeding devices arranged on said supplemental rod, the paper feeding devices on the main rod being arranged to cooperate with the margins of a record sheet and the paper feeding devices on the supplemental rod being arranged to cooperate with the margins of an invoice or like sheet.

29. In a front strike typewriting machine, the combination of a platen, a main rod arranged thereabove and extending across the machine, a plurality of adjustable offset paper feeding devices mounted on said rod and extending toward the printing line, a supplemental rod also arranged above the platen and likewise extending across the machine, a plurality of adjustable paper feeding devices mounted on said supplemental rod, the construction and arrangement being such that the paper feeding devices on the main rod cooperate with the margins of a record sheet and the paper feeding devices on the supplemental rod cooperate with the mar gins of an invoice or like sheet and both of said sheets being adapted to be fed upwardly and rearwardly over said main rod.

30. In a typewriting machine, the combination of a platen, a paper finger, a spring connected at one end to said paper finger, an anchorage to which the other end of said spring is connected, and means for automatically varying the position of said anchorage with the varying thicknesses of the sheet or sheets introduced between said paper fingers and said platen, and thereby relieving in part the tension of said spring against the varying pile of paper.

31. In a typewriting machine, the combination of a platen, spring pressed paper ALVIN MARTIN STONE.

Witnesses:

H. D. J AMESON, GEORGE W. DIOKMAN.

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