US904002A - Type-writing machine. - Google Patents

Description

H. S. MCGORMAGK. TYPE WRITING MAGHINE. APPLICATION IILED 1 213.11, 1908.

\ Patented Nov. 17, 1908.

fiwenfor. Cmmo/C messes:

upon a long formed with facility.

adjustable to sultthe needs of all kinds of small sheets are being withdrawn from the machine.

sheet at that point on the ,platen which will record sheet, the rolls must HARRY s. McOORMAOK, OF NEW YORK, N.

COMPANY, OF NEW YORK, N, Y., A CORPORATION OF NEW JERSEY.

TYPE-WRITING MAonmn.

Specification of Letters Patent. Patented Nov, 17, 1908.

Application filed February 11, 1908. Serial No. 415,287.

I the rolls were well to the front, the sheet To all whom it may concern:

would rise straight up from the machine Be it known that I, HARRY S. MCCOR- MACK, a citizen of the United States, residing in New York in the county of New York and State of l\ew York, have invented certain new and useful Improvements in Type-lVriting Machines, of which-the following is a specification.-

This invention relates to the paper feeding devices of typewriting machines, and especially those of the front strike variety, in which it is desired to make carbon copies record sheet (to be subsequently bound into a book) of checks. or other short statements or memoranda, which are written and removed from the machine one after another while the record sheet is retained in the machine.

One of the principal objects ofthe invention is to provide an attachment which can readily be applied to existing machines for enabling this variety of work to be per- The record sheets in difierent ofiices vary in width and stiffness, and it frequently happens that the usual front paper-guiding fingers. are inefiicient to retain the record sheets, when the usual pressure rolls under the platen are cast ofif to permit the withdrawal of thecheck, bill or other small sheet.

The object of my invention is to provide means readily applied,..to the machine and the other hand, in the case of a limp record sheet, the rolls should not be carried so far back that there would be atendency for the leading edge of the record sheet to reenter the machine at the back of the platen, and other trouble caused.

By adjusting the rod forwardly and backwardly which carries the top pressure rolls, the latter may be caused to bear upon the platen at the exact point to meet the requirements of any particular width or style of record sheet, and all difficulties may be avoided.

Preferably the adjustment of the rod, which carries the pressure rolls, is in a single horizontal plane, forwardly and rearwardly, and I provide means for regulating the inthe rod and carry the pressure rolls which run upon the topvof the platen as aforesaid. By varying the inclination of these pendent parts, compensation is made for difierent positions to which the rodis adjusted. Each pressure roll moreover, has its individual spring for regulating-its own pressure against the platen, to compensate for any inexactness in the adjustment of the inclination of the 'finger or device on which the roll is carried. A finger-piece is also connected to said rod to enable the operator to swing the rolls away. from the platen, for convenience in introducing the record sheets into the machine and in releasing them for withdrawal. The checks are fed record sheets, and to hold the latter firmly against the platen while the checks or other In carrying out my invention, I provide a plurality 0 pressure rolls to run upon the top of the platen to engage the record sheet well above the printing line, and withthe requisite force, so that the record sheet cannot become accidentally misplaced during the manipulation of the sheets in front thereof. These pressure rolls are carried upon a rod mounted over the platen and bodily adjustable vforwardly and backwardly, to cause the rolls tobearupon' the record one by one from rolls. 4 c 1 In the accompanying drawin s, Figure 1 is a sectional side elevation ot an Underwood front strike writing machine pro vided with my improvements; the pressure rolls beingshown as released from the platen. Fig. 2 is a perspective view to illustrate the manner of connecting a roll-carry ing rod with its journal in a manner to permit relative rotative adjustment of the two. Fig. 3 is a front elevation of the parts seen at Fig-l. Fig. tshows the pressure roll release key. Fig. 5 shows details of devices, whereby the roll-carrying rod is securable at difie'rent adjustments backward and forthe machine in front of said cause the sheet to take the proper direction as it passes out of the machine. It will be understood that, in the case of a heavy stifi be carried well to the rear,to direct the sheet backwardly as it emerges from the machine; since if Y.,.ASSIGNOR TO UNDERWOOD TYPEWRITER clination of the fingers which depend fro mup in front of the platen independently of. the aforesaid top. pressure rolls, and emerge and bother the operator in many ways. On

ward. Figs. 6 and 7 illustrate the different relative positions of the rod and one of its journals seen at Fig. 2. Fig. 8 is a view similar to Fig. 1, but showing the key depressed to cause the pressure roll to bear upon the front side of the platen. Fig. 9 is a View similar to Fig. 8, but showing the pressure roll as bearing upon the top of the platen. This figure also illustrates the man ner in which a check emerges from the machinein front of the pressure rolls.

The usual inked impressions are made by type bars 1 upon the front of a palten 2, which is journaled by means of an axle 3 in the ends 1 of a platen frame, which also comprjses a rear paper shelf lressure rolls 6, 7 run upon the under side of the platen and are usually releasable. Paperguiding fingers 8, 9 are usually carried upon a rod 10, which extends from one platen frame end to the other, but these fingers are not used in the operations for which my present improvements are especially intended. They are shown as moved over to the ends of an extra long platen, where they are out of the way of the checks and record sheets that are to be written. My improvements are illustrated in the form of an attachmentwhich may be readily applied to existing machines, which' re usually provided with said fingers 8, 9. Obviously in performing other kinds of work than that herein particularly referred to, said fingers may be used in connection with my improve: ments. v

A long record sheet 11 is introduced. into the machine, and fed line-by-line by the rolls 6, 7. The usual overlying carbon sheet not shown. Upon the upper portion of the platen run two or more pressure rolls 12, which by means of instrumentalities hereinafter described, are caused to bear with considerable force upon the record sheet, so that it is not likely to become disarranged when the rolls 6, 7 are cast off. The rolls 12 are carried upon a rod 13, which may be swung up by means of a key 1+. to carry the rolls away from the platen, as at F 1, during the introduction of the record and carbon sheets. Then the key 11 is depressed to swing the rolls down upon the record sheet.

The checks 1:) are introduced either singly .or in a connected series, and detached one by one as they are written. They are held. against the platen by means of the usual curred loop of wire 16, which is mounted upon a'fixed portion 17 of the machine;

The checks emerge from the machine in front of the rolls 12, as seen at Fig. 9. l t will be understood that as soon as one'cheru is written the rolls 6, 7 are cast off and the sheet 1'5 drawn up. while the record sheet 11 remains stationary. Then the succeedi l l l I I l l l l l record made on the sheet 11, and the operafollowing one another closely upon the record sheet to economize.room thereon.

The rod 13 carrying said rolls 12 is bodily adjustable forwardly and rearwardly along the tops 18 of the platen frame ends. Yokes or supports 19 in which said rod is j ournaled, are fixed upon bases 20, the latter being releasably secured by screws 21 upon a pair of plates 22, the latter attachable by screws 23 to said tops 18 ofthe plateaframe, which tops I usually provide with tapped holes, to which "said screws are adapted. The screws 21 are threaded into nuts 24, the latter hav-. ing squared shanks 25 to fit in slots 26 eX- tending longitudinally in the plates 22. By releasing the screws 21', the supports 19 may be carried forwardly or backwardly'along the plate 22 together with the rod 13, as from the Fig. 8 to'theFig. 9 position, and their the screws may be tightened to secure the rod in its new position.

In order to tip the pendent fingersor de: vices carrying the rolls 12 (said devices designated generally as 27) to compensate for the different positions to which the rod 13 is adjusted forwardly and backwardly, so that the rolls 12 may always run firmly upon the platen, I provide for relative rotative adjustment of the roll-carrying rod 13, and its journals 28 which turn in the yokes or brackets 19; said journals being constructed to have a. single rotative position when the rolls 12 are running upon the platen, regardless of the forward and backward adjustment referred'to. It will be seen that these journals have longitudinal grooves 29, in which rolls 30 are pressed by bow-springs 31; said rolls being guided in suitable vertical slots 32 formed in the upstanding ears 33 of the yokcs 19, Fig. 4. Upon the inner end of each journal is driven a tubular piece or sleeve 34, the inner end of which forms a socket to receive the end,of the rod 13,

- and said sleeve 34 is formed at its inner end with a head 36 to receive set screws 37 to bear against the rod '13 and secure it at different rotative adjustments. Said rod is shown provided with a longitudinal groove 38 to receive rolls 39 pressed by springs 10. the latter carried upon yokcs 4:1 resembling the yokes 19, and slidable along the rod 13, as well as independently rotatable thereon. The springs 31 and 40 are powerful, so that the rolls 12 are pressed with considerable force upon the platen or the paper thereon. Thus. it will. be seen that after adjusting the rod 13 bodily forward or backward. as for instance from the Fig. 8 to the Fig. i) position, the screws 37 may be loosened, and the rod 13 rotatably adjusted to change the in- ('liuation of the fingers 27, as shown, so that j the rolls 12 may run firmly upon the platen; mg check is written line by line. and its l the screws 3( being tightenedto secnrethe rod 13 in its new position. The relative adjustment of the rod and journal is illustrated at Figs, (5 and T, Fig. 6 corresponding to Fig. 8, and Fig. 7 corresponding to Fig. 9.

In order to compensate for 'any inaccuracies o adjustment and for otherv purposes, screws a2 may be turned to vary the- -l3 upon which the rolls pressure of springs 12 are directly mounted; said screws threaded through ears 44' pendent from the yokes t1 and secured thereto by screws 45.

The linger-piece 14 may be depressed to throw the rolls a ainst the platen, and elevated to release the rolls, regardless-of any adjustment of the rod 13. The finger-piece moves forwardly and bacliiwardlywith the rod when the latter" is adjusted, and it is fixed by a screw 46 to the end of a journal 28, so as to rotate the latter and the rod. When the finger-piece is lifted to cast off the pressure rolls, Fig. 1-, the roll 30 is'forced down out of the groove :29, Fig. 4, and bears upon the cylindrical periphery of the-journal, and hence the springs 31 are incapable 'ournals back to normal poof turning the j sitions. ()n the contrary, they cause such friction of the journals in their bearings as to detain the journals mechanically in roll releasing position, as at Fig. 1, so that the key 14: may be relinquished, and-both hands of the operator may be employ ed in manipulating the sheet 11.

Variations may be resorted to'within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. Ina front strike writing machine, the combination with a revoluble platen and a platen frame, of a rod mounted on the platen frame over the platen and bodily adjustable forwardly and backwardly, means for securing the rod where adjusted, and pressure devices mounted upon said rod to bear against the platen.

, 2. In a typewriting machine, tion with a revoluble platen and a plateil frame having ends, of a rod extending along the platen and over the same, means supporting the ends of said rod-upon the ends of the platen frame in a ananner to permit bodily adjustment of the rod forwardly and backwardly in a single plane, pressure devicespei'ident from said rod to beartupon theplaten, means to permit rotative adjustment of saidrod to vary the inclination of the pressure devices to compensate for the forward and backward adjustment of the rod, and'meansfto secure the rod at different points in its rotation.

, combination vwith a revoluble platen and a platen frame, of supports mounted upon said frame and adjustable forwardly and rearwardly, a rod extending along and over the -co1nbina-.

In a front strike writing machine, the

the platen and carried u on said supports, a pressure device mounted upon said rod, a spring to cause the pressure device to bear against the platen, and'a finger-piece connected tothe rodto turn it and lift the pressure away from the platen, v 4, In a front strike writing machine, the combination with a revoluble platen and a platen frame, of supports mounted upon said frame and adjustable forwardly and rearwardly, a rod extending along and over the platen and carried upon said supports, a pressure device mounted upon said rod, a spring to c ause the pressure device to bear against the platen, and a finger-piece connected to the rod to turn it and release the pressure device away from the platen; means being provided for. the mechanical maintenance of the rod and pressure device in released positions;

-5. Ina front strike writing machine, the combination with a revoluble platen and a platen-frame, of supports mounted upon said and forward adjustment of the rod, so that the pressure device may always bear upon the cylindrical surface of the platen.

\ 6. In a typewriting machine, the combination with a'revolu'ble. platen and a platen frame having ends, of a rod extending along porting the ends of said rod upon the ends of the platen frame in a manner to permit bodily adjustment of the rod forwardly and backwardly in a single plane, pressure devices pendent from said rod to bear upon the platen, means to permit rotative adjustment of said rod to vary theinclination of the pressure devices to compensate for the forward and backward adjustment-of the rod, and means to secure the rod at different points in its rotation; each of said pressure devices having independent means for regulating its pressure upon the platen.

'7. In a front strike writing machine, the combination with a revolu'ble platen and a platen frame, said frame and adjustable in a single plane along and over the platen 'and carried upon said supports, ap'ressure device mountedupon said rod, a spring to-cause the pressure device to bear against the platen, and a finger-piece connected-to the rod to turn it and lift the pressure device away from the frame and adjustable in a single plane forthe platen and over the same, means sup- H of support-s mounted upon forwardly. and rearwardly, a rod extending r to move the pressure deviees away from the platen; means being provided to. permit adustment of the pressure device to different inclinations to compensate for the backward and forward adjustment of the rod, so thatthe pressure device may always bear upon the cylindrical surface of the platen; said pressure device having independent pmeans for regulating its pressure upon the platen.

8. A paper-guiding attachment for type plate having a longitudinal slot, a pair of supports, screws to fasten said supports at different positions along said plates, said screws threaded into nuts fitted in said slots, a rod extending along the platen, journals connected to the ends ofv the rod and mounted upon said support-s, yielding means to prevent the journals from turning in said supports, the rod being revolubly adjustable relative to said journals and providedwith means to fasten it at different adjustments, and pressure devices adjustable along said rod and bearing upon the platen; said rod being rotatable with said journals platen: I

9. A paper-guiding attachment for typewriting machines, comprising a'pair of forwardly and rearwardly extending plates to attach to the ends of the platen frame, each plate having a longitudinal slot, a pair of supports, screws to fasten said supports at different positions along said plates, said screws breaded into nuts fitted in said slots, a rod extending along the platen, journals connected to the ends of the rod and mounted upon said suports, yielding means to prevent the journals from turning in said supports, the rod being re\ 'olnbly adjustablerelative to said journals and pro vided witlrmeans to fasten it at different I adjustments, and pressure devices {HljUSttlllk-yj along said rod and bearing upon the platen; said rod being rotatable with said ournals to move the pressure devices away from the platen, a tingerp1e ':e. connected to onset said journals to swing the pressure devices away from and back to the platen; means being provided for mechanically detaining the rod and ournals in a position to hold the pressure. devices away from the platen.

10. A paper-guiding attachment for typewriting machines, comprising a pair of forwardlyand rearwardly extending plates to attach to the ends of the platen frame, each plate having a longitudinal slot, a pair of suppo1.'ts,'screws to fasten said supports at different positions along said plates, said screws threaded into nuts fitted in said slots. :1 rod extending along the platen. journals connected to the ends of the rod and mounted upon said supports, yielding j'ustable re ative to said. journals and provided with means to fasten it at different adjustments, and pressure devices adjustable along said rod and bearing upon the platen; said rod being rotatable with said journals to move the pressure devices away from the platen; sockets being provided upon said journals in which the ends of said rod fit,

in different adjustments in the sockets; the rod being'concentricwith the journals.

'11. In a front strike writing machine, the combination with a revoluble platen and a platen frame,'of supports upon the ends of the platen frame, a rod extending along the rod and mounted upon said supports, yielding means to prevent the journals from turning in said supports, the rod being revolubly adjustable relative to said journals and provided with means to fasten it at different adjustments, and pressure devices adjustable along said rod' and bearing upon the platen;.said' rod being rotatable with said journals to move the pressure devices away from the platen.

' 12. In a front strike writing machine, the combination with a revoluble platen and a platen frame, of supports upon the ends of the platen frame, a rod extending along the platen, journals connected to the ends of the rod and mounted upon said supports, yielding means to prevent the ournals from turning in said supports, the rod being revolubly adjustable relative to said journals and provided with means to fasten it at different adjustments, and pressure devices adjustable along said rod and bearing upon the platen; said rod being rotatable with i said journals to move the pressure devices 1' away from the platen, and a finger-piece being connected to the rod to turn it upon its journal to swing the pressure device .relatively to the platen. i The combination with a revoluble l platen and a platen frame, of a rod extending along the platen, journals concentric with said rod and connected to the ends 1 thereof and mounted upon the ends of the platen frame, yielding means to prevent the journals from turning, means connecting the rod to the journals to permit relative rotation thereof, and pressure devices adjustable along said rod and bearing upon the platen.

1 t. The combination with a revoluble platen and a platen frame, of a rod extending along the platen, journals concentric with said rod and connected to the ends,

3 thereof and mounted upon the ends of the platen frame, yielding means to prevent the E ournals from turning, means connecting the rod to the ournals to permit relative rotaj tion thereof, and pressure devices adjustable means to prevent the journals from turning 1 along said rod and bearing upon the platen;

in said sup orts, the'rod being revolubly ad-- and means being provided to secure the rod platen, journals connected to the ends of the said journals being longitudinally grooved, and spring pressed guided rolls engaging the grooves.

15. The combination with a revoluble platen and a platen f 'ame, of a rod extending along the platen, journals concentric with said rod and connected to the ends thereof and mounted upon the ends of the platen frame, yielding means to prevent the journals from turning, means connecting the rod to the journals to permit, relative rotation thercofand pressure devices adjustable along said rod and beari-ngupon the platen; said journals being longitudinally grooved, and spring pressed guided rolls engagrng the grooves, said pressure devices being splined to said rod.

16. The combination with a revoluble platen and a platen frame. of a rod extend; ing along the platen, journals concentric with said rod and connected to the ends thereof and mounted upon the ends of the platen frame, yielding means to prevent the journals from turning, means connecting the rod to the journals to permit relative rotationthereof, and pressure devices adjustable along said rod and bearing upon the platen; said journals being longitudinally grooved, and spring pressed guided rolls engaging the grooves. said pressure devices being splined to said rod. and having individual means for regulating their pressure against the platen.

17. The combination with a. revoluble platen and a platen frame, of a rod extending along the platen, journals concentric with said rod and connected to the ends thereof and monnted upon the ends of the platen frame. yielding means to prevent the 40 journals from turning. means connecting the rod to the journals to permit relative rotation thereof, and pressure devices adjustable along said rod and bearing upon the platen; said rod bodily adjustable backwardly and forwardly.

18. The combination with a revoluble platen and a platen frame, of a rod extend ing along the platen, journals concentric with said rod and connected to the ends thereof and mounted upon the ends of the platen frame,'yielding means to prevent the journals from turning, means connecting the rod to the journals to permit relative rotation thereof, and pressure devices adjustable along said rod and bearing upon the platen; said journals being longitudinally grooved, and spring pressed guided rolls engaging the grooves; said journals being mounted upon supports which are adjustable backwardly and forwardly upon the ends of the platen frame.

19; The combination with a revoluble platen and a platen frame, of a rod extending along the platen, journals concentric with said rod and connected to the ends thereof and mounted upon supports which are adjustable backwardly and forwardly upon the ends of the platen frame, yielding means to prevent the journals from turning, means connecting the rod to the journals to permit relative rotation thereof, and pressure devices adjustable along said rod and bearing upon the platen; said journals being longitudinally grooved, and spring pressed guided rolls engaging the grooves, said pressure devices being splined to said rod.

HARRY S. MoCORMACK.

\Vitnesses D. M. Amman, S. T. SMrrIL

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