US1499415A - Typewriting machine - Google Patents

Description

J. 'A. B. SMITH TYPEWRITING MACHINE Filed July 25, 1918 the rear ends of carbon sheets.

transversely of the side members 9 and having rollers 12 running in the channels of said side members, said carriage serving as a support for one or more carbon-sheet-holding members 13; which members er tend from one side of the carriage between the. superposed webs of paper written on by the machine and serve to hold or support The members l3 and their carbon sheets do not extend entirely across the width of the paper but terminate some distance short of it so as to leave a margin of paper on the other side below which there is no carbon paper. On the side adjoining this margin is mounted the fastening means to be hereinafter described.

Three superposed webs of paper 14 are shown. These webs may pass along the upper side of the frame and over a guide 15, and about the platen 7 while the carbonsheet-supporting members 13, which may be in the form of fingers extending between each two superposed sheets, serve as abutments to which the rear ends of sheets 16 of carbon-coated paper or fabric may be secured.

Suitable means may be provided for fastening the superposed side edges of the-webs 14: together. In the form of my invention illustrated, the fastening means is carried by the frame aforesaid, and is secured to the side member 9 opposite to the side to which is attached the carbon-sheet holding members and adjacent the edge of the paper below which there is no carbon paper.

The particular form of mechanism for fastening the side edges of the webs together is a matter of secondary importance, and any suitable device for accomplishing that end may be employed. The fastening means illustrated, however, comprises jaws 17, 18 movable relatively to one another by means of handles 19, 20; the former of said jaws being secured to a side member 9, and the latter of which rises and falls as the bandles are operated. The movable jaw 18 carries a cutter 21, see Figures 3 and 1, which cuts out a triangular tongue of material from the overlying side edges of the superposed webs 14c, and folds and tucks the tongue through a slit also cut in the material of the sheets by a knife 22, the knife having an opening 23 into which the end of the tongue enters, and after which the tongue is drawn upwardly through the slit formed by the knife. Figure 6 is an enlarged view showing a completed fastening formed by the mechanism above referred to; the reference numeral 24 indicating, upon axgreatly enlarged scale, an opening produced by the triangular cutter 21, the reference numeral 25 indicating the slit produced by the knife 22, while the reference numeral 26 designates the tongue cutout from the opening 24 and folded upon itself and tucked through the slit 25 to fasten the several webs together.

As the platen 7 is rotated in line-spacing operations, the webs 1 1 and the carbon sheets 16 are advanced simultaneously about the platen and beneath a transverse rod 27 and a knife 28,'and up along-a paper table 29; this forward'movement continuing until the typing of a set of forms has been completed. When this movement has been completed, the platen is swung upwardly about the rod 27 as a center, thereby releasing the webs and permitting them to be grasped and drawn out into a substantially straight position. When the webs are straightened out they are held by the operator, and the carbon carriage 11 pushed rearward independently of the webs, as by means of a handle 30, thus bringing the carbon sheets 16 into relation with new portions of the webs 14. The platen .7 and the paper table 29 are thenv turned to the position in which they are illustrated in Figure 1, after which the portion of the webs written upon may be drawn across the knife 28 and severed from the portion thereof remaining in the machine. The webs and carbon sheets are held in proper relation to the platen 7 by means of a paper shield 31, and suitable paper feed rolls 33 will be also provided, these, however, being features common in typcwriting machines, for which reason they are not i1- lustrated in detail.

Figure 5 shows in perspective three webs secured together along a portion of their overlying side edges, the fastenings 34 being of the kind. produced by the fastening mechanism illustrated and hereinbefore de scribed, and said fastenings being located at one side only of the combined work-sheet provided by the three webs shown. These fastenings are spaced along the said side edge, and extend throughout a portion only of the entire length of the webs. The fastenings may obviously be spaced according to the desires of the operator, and the exigencies of the case; the same being spaced as closely together as may be found necessary or desirable in order to prevent the sheets from moving relatively to one another as they are fed about the platen of the machine.

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. In a typewritin machine, the combination with a revolu le platen, of a letterfeeding carriage for said platen, said carriage having a rearward extension over which superposed webs are fed to the platen, a carbon-sheet-carrier reciprocable forwardly and rearwardly on said extension, holders macaw the rearward position of the carriage, the

location of said co-operating parts being such that the adjacent margins of the webs pass therebetween and may be attached together by said device when desired, said holders being so short as not to reach said margins, whereby the attached portions of said margins may pass the ends of said holders without interference therewith, and relative creeping of said webs may be prevented.

2. In a typewriting machine, the combination with a revoluble platen, of a letterfeeding carriage for said platen, said carriage having a rearward extension over which superposed webs are fed to the platen,

a carbon-sheet-carrier reciprocable forwardly and rearwardly on said extension, holders extending from one side of said carrier between successive webs to hold the rear ends of carbon-sheets interleaved therebetween, and a web-attaching device mounted on the extension at the side thereof toward which said holders extend and at, the rear of the rearward position of the carriage, said attaching device being so located that the adjacent mar ins of the webs pass therethrough an may be attached together by said device when desired, said holders being so short as not to reach said margins, whereby the attached portions of said margins may ass the ends of said holders without inter erence therewith, and relative creeping of said webs may be prevented.

3. In a typewriting machine the combination with a 'revoluble platen, ot a letter-feed ing carriage for said platen, said carriage having a rearward extension over which superposed webs are fed to the platen, a carbon-sheet-carrier reciprocable forwardly and rearwardly on said extension, holders extending from one side of said carrier between successive webs to' hold the rear ends of carbon-sheets interleaved between said webs, said holders extending only partially across said webs so as to leave mar inal portions of the latter beyond the en s of said holders, and a manually-operable fastening device having two co-operating parts so located that said marginal portions of the webs are fed therebetween and may be attached together at any desired points, Whereby the attached parts of said marginal portions may be fed past the ends of said holders without interference, and relative creepingof said webs may be prevented.

4. A machine for typing superposed loose Webs with interleaved carbons, each Web having a succession of forms printed thereon, the forms on each web being in register with those on the remaining webs, comprising a vrevolulole platen around which the webs are fed, line by line during the typing operation, whereby a tendency is set up to cause the plies of the web to creep upon one another, and means to revent such relative creeping, comprisinga evice rovided upon the typewriting machine at t e intake side.

of the platen to act upon the edges of the loose webs as they approach the platen to fasten said webs firmly together, by an interlocking device which passes around said platen with said webs while leaving the interleaved carbons loose.

JESSE A. B. SMIT Witnesses:

CATHERINE A. NEWnLL, EDITH l3. LIBBEY.

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