US860026A - Paper-feeding mechanism. - Google Patents

Description

8. M. HAWLEY.

PATENTED JULY 16, 1907.

M S I N A H O B M G N I D E E F R E P A P APPLICATION FILED MAR. 22. 19 8. I

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' APPLICATION FILED MAR. 22, 1906.

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SARAH M. HAWLEY, OF ST. LOUIS, MISSOURI.

PAPER FEEDING MECHANISM.

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' Specification of Letters Patent.

Patented July 16, 1907.

Application filed March 22,1906. Serial No. 307,488.

To all whom it may concern:

' Be it known that I, SARAH M. HawLEY, a citizen of the United States, residing at St. Louis, Missouri, have invented a certain new and useful Improvement in Paper Feeding Mechanisms for Type -Writing Ma chines, of which the following is a full, clear, and exact descripti n, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l i a side elevational view of my improved paper feeding mechanism; Fig. 2 is a detailwiew of.one

of the operating pawls; Fig. 3. is a sectional view through one of the supply rolls and its support; Fig. 4 is an enlarged sectional view on the line 4-4 of Fig. 3; Fig. 5 is a front elevational view, partly in section, of the construction shown in Fig. 1; Fig. 6 is a-frontelevational view of a modified form; Fig. 7 is asectional view on the line 7-7 of Fig. 6; Fig. 8 is a vertical cross sectional view of the modification shown in Fig. 7 and Fig. 9' is adetail view of the supply roll.

This invention relates to a new and useful improvement in paper feeding mechanisms for typewriting machines, the object being to provide one or more rolls of paper and carbon capable of lateral movement with the carriage and its platen, whereby one or more copies may be produced. Incidental to the above, means are provided for exerting a tension on the supply rolls to take upthe slack in the paper or carbon whenever the platen is reversely rotated, and means are also pro vided to release the paper feeding pawls on the paperreceiving rolls to permit backward movement'of the paper. i I

With these objects in view, the invention consists in the construction, arrangement and combination of the several parts, all aswill be hereinafter explained and afterwards pointed out in the claims.

in the drawings, in Figs. .1 to 5 inclusive, '1 have shown my improved device as applied to the wellknown Remington typewriter-in which there are separate feeding rolls for the paper and carbon, and also separate receiving rolls for said continuous sheets-..

In these views, 1 indicates the frame of the machine on which are supported tracks 2 .3 is the laterally movable carriage operating upon said tracks and carrying the usual platen 4. Platen 4 has a ratchet wheel at one end with which cooperates a feed pawl 5 on one member of'a bell crank lever 6, whose other member terminates in an operating handle 6. I i

7 indicates a frame secured to the carriage of the machine and constituting a mount for the paper rolls. I

8 and 10 are the rolls from which issue the sheets of paper designed to receive impressions from the type, while 9 is aroll of carbon paper whose sheet is'fed between the rolls 8 and 10 in a well-understood manner.

Each of these rolls 8, and 10 is provided with a hollow spool 11, see Fig. 3.

12 indicatesa rod slidingly mounted in the frame 7 and having a hand wheel at one end, said wheelbeing provided with a recess cooperating with a pin 13 whereby the hand wheel and rod may be locked against rotation inone of their positions; The inner end of rod 12 is provided with a head 14 against'which bears a cone-ended spring housing 15 containing a coil tends to hold the spring housing 15 against the head '14 and also to hold the hand wheel inwardly so that the pin '13 is received in the recess thereof, whereby the spring 16, one end of which is connected to the spring housing and the other end to the rod '12. A spring 17 rod 12 is locked against rotation: The opposite end of the spool 11 is supported upon a rotatable cone 18 connected to an operating handle 19, as shown in Fig. 5.

In mounting the rolls 8, 9 and 10in position one end of the spool is fitted upon the cone 18 and the rod 12 is pulled outwardly, which permits the coned portion of the spring housing to be fitted into the opposite end of the spool. Upon being released the spring'17 forces the coned portion of the spring housing-into the spool and likewise thev rod 12 inwardly, in which position the pin 13 enters the recess in the hand wheel and the rod is prevented from rotating. When the paper is drawn from the rolls 8, 9 and 10 the spring 16 is wound, due to frictional engagement between the spool 11 and coned portion of the spring housing, and consequently tension is constantly exerted on the paper or carbon,

as the case may be, so as to hold the same taut.- This construction also enables the rolls 8, 9 and 10 to rewind the paper to the extent of the spring action, in the event that the-paper is turned back' under the platen A. The frictionbetween the spool 11 and the coned portion of the spring housing is such that when I the spring 16 is wound the roll is permitted to continue its unwinding movement, keeping the spring 16 wound up, however, so as to exert its constant tension on the paper and be in readiness to absorb any slack in the event that the printing platen is reversely rotated.

As it is desirable in some instances to separate the paper and carbon after the'printing thereon has been effected i1 mount spools 20, 21 and 22 the front portion of t 0 frame, which spools cooperate with rotatable coned supports 'simi lar in construction to the cones 18 above described except that at one side, as shown in Fig. 5, I arrange springs 23 behind the cones so as toforce them inwardly, thus permitting a longitudinal movement with respect to their shafts 24 to which they are connected by a slot andpin connection, and are thus prevented from independent rotation. Onthe ends of these rods 24 are'ratchet wheels 25.

26 are pawls cooperating with the ratchets 25, said pawls being mounted on a"'rod 27 whose lower end is bent forwardly and connected bya link 28 to the opcrating handle 6 Iii this manner whenever the handle 6 is operated to line-space the paper, the rod 27 is lifted and rotates the'ratchet wheels and their connected shafts 24 so as to wind up the paper and carbon on the spools 20, 21 and 22. Each of the pawls 26 is provided with a heel portion'29 with which 006pcrate projections 30 on a rod 31. By depressing this rod all of the pawls 2,6 are simultaneously lifted away from their ratchets and consequently the platen 4 may be reversely rotated in the event that it is desired to make 'a correction to a line already written. The platen 4 codperates with the usual idle rollers 4 and 4 which hold the paper firmly to the platen and thuspermit the platen to control the advance movement of the paper as well as its return movement.

In Figs. 6 to 9 inclusive I have shown a modified form of my invention, the same being applied to the well-known Smith-Premier typewriter. In this typewriter, as is well-known, the carriage frame does not swing but the platen 32 moves forwardly and backwardly on tracks 33 so as to make the writing visible to the operator, a quarter turn being given to the platen in its forward and backward movement. There are rods 34 on each side of the platen forming supports for the paper guides and idle rollers, and these rods move with the platen.' It is upon these rods that I mount brackets 35 for supporting the roll of'paper and interposed carbon 36. This roll, as shown in Fig. 9, consists of two or more strips of paper A with an interposed carbon sheet or sheets B between, and I prefer to perforate or roulette the sheets of paper A, whereby the same may be severed as they issue from the machine. To assist in removing the finished sheets I arrange a knife blade 37 on the front rod 34 as shown. To keep the roll of paper with its interposed carbon sheet or sheets taut, I may provide a tension device similar iii construction to that shown in Fig. 3.

While I have illustrated two forms of my invention especially adapted for two well-known makes of typewriting machines, it is obvious that there are other makesof typewriting machines to which my -invention, with perhaps slight changes, would be applicable; also, that my improvement could be used to advantage in connection with adding machines where it was desired .to obtain a carbon copy of the list of items recorded by the machine.

I have not illustrated in the drawings an alarm mechanism which indicates when the bottom of a sheet is reached, but as this is common and well-known in the art it will be understood thatitsuse will beadvantagoous in connection with my improved paper feeding mechanism.

While I prefer to use a strip or strips of carbon paper for producing the manifold copy or copies it. should be understood that an inking ribbon 6r a continuous strip of other suitable material could be interposed between the strips of paper without departing from the spirit of my invention, one of the principal features of which consists in using in combination with the paper-feeding mechanism of a typewriting or similar machine, a roll consisting of a plurality of strips of paper with a continuous strip of material for producing a copy interposed between the strips of paperand wound therewith. As' previously stated, one or all of the strips of paper are provided at intervals with some means for indicating where the paper is to be severed to divide it into sheets, and if desired the strip of copying material maybe provided at intervals with non-' claimed as new and desired to be secured by Letters Patent is:

1. In a paper feeding mechanism for typewriting ma chines, the combination with a supply roll mounted on a hollow spool, of a rotatable cone supporting one end thereof, a spring housing carrying a coned portion which projects into the opposite end of said spool. a rod on which-said spring housing is mounted, a coiled spring surrounding the rod outside of the housing and connected to said rod and to said housing, a handle on the outer end of said rod, means for locking the rod against rotation, and a spring, for holding said rod in its locked position and for i'orcingthe coned portion of the housing into frictionhl en gagement with the end of the hollow spool; substantially as described. I A

2. In a paper feeding mechanism for typewriting machines, the combination with a plurality of receiving rolls mounted on a vertical support and provided with rntchets, pawls coiiperating with said ratchets, a member carrying all of said pawls, and means for moving said member whereby all of the pawls engage the i-atcl ets on the rolls and actuate them simultaneously; substantially as described.

In a paper feeding mechanism for typewriting machines, the combination with a plurality of supply'rolls. of tension devices coliperating with each for re-winding the.sheets fed therefrom, paperreceiving rolls provided with ratchets, a pawl coiiperating with 'the ratchet of each roll, a platen, line-spacing mechanism coilperating with said platen, and a connection between said line-spacing mechanism and the pnwls for each receiving roll, whereby all of said rolls are actuated simultaneously with the platen; substantially as described. 1

4. In a paper feeding mechanism for typewriting machines. the co!nbination with a plurality of receiving rolls,

, of'a ratchet wheel for each roll, a bar carrying pawls cooperating with said ratchets, and means independentof said bar for simultaneously releasing all of said pawls i'roin engagement with their ratchet wheels {substantially as described.

In testimony whereof, I hereunto affix my signature, in the presence of two witnesses, this seventeenth day of Mai-ch 19,06.

SARAH M. HAW'LEY.

' Witnesses I It. Conuwan Guouon BAKEWELL.

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