US2024789A - Typewriter attachment - Google Patents

Description

Dec. 17, 1935. `c. WINTER 2,(24789 TYPEWRITER ATTACHMENT Filed April 2 1, 1954 2 sheets-sheet 1 De. 17, 1935. i c. WINTER 2,0245789 TYPEWRITER ATTACHMENT Filed April 21, 1954 2 Sheets-Sheet 2 l l l www0 v' intendedv to catch on Patented Dec. 17, 1935y PATENT OFFICE 2,024,189 mnwnrrsa Armonium' Charles Winter, Chicago,

Autographie Register Co.,

poration of Illinois Ill., assigner toUnited Chicago, Ill., a cor- Applicaton April 21, 1934, VSerial No. '321,776 6 Claims. (Cl. 197-126) This invention relates particularly to typewriters adapted to the purpose of filling in forms on continuous-form stationery and more particularly to an attachment for holding carbon strips in interleaved relation with stationery strips so thatthe carbons may be` shifted from an advanced to a succeeding set of forms at the completion of a writing operation.

The primary object of the invention is to provide an extremely light and simple attachment which may be mounted on the platen carriage of a standard typewriting machine wh'en it is desired to do continuous billing lwork thereon. By employing the present invention, an ofce having but a limited amount of billing work may do the same on one of the ordinary typewriters.

Various inventions have been made for supporting carbon strips in interleaved relation with the stationery, such as extensions for the typewriter carriage which must be supported on a special track provided onthe typewriter frame. Other attachments have been used to grip the carbons after they have been advanced beyond the platen and in some cases carbon packs have `been provided with a tail piece having a hook the typewriter mechanism when the carbons are advanced beyond the platen.

In thepresent invention a light metal frame is supported on the tabulating bar of the machine and is provided with a pair of rear guide arms to prevent'l the stationery from being pulled out of alignment on the platen by theside movement of the carriage. The carbon strips are attached to a fabric holder which has a rearwardly extending train which is provided with a longitudinal slot. The longitudinal slot is impaled by a capped stud rigidly mounted on the guide frame so that a lost motion connection is provided. When the carbon is advanced beyond the platen the pressure members maybe released and the stationery drawn forward by hand while the carbon holder prevents further advancement of the carbons due to engagement oi the stud in the slot. As the carbon is backed into writing position the carbon holder slides back on the guide member and the lost motion connection permits this movement without buckling the stationery.

The invention is illustrated in a preferred embodiment in the accompanying drawings in which- Fig. l is a side elevational view of a typewriter with an attachment embodying the present invention; Fig. 2 is a broken longitudinal sectional view on an enlarged scale showing how the ilextending slot ible carbon holder maintains the carbon strips in interleaved relation with the stationery strips; Fig. 3 is a perspective view of the guide member; Fig. 4 an enlarged plan view of the fiexiblecarbon holder; and Fig. 5 a fragmentary plan view s showing the lost motion connection between the l guide member and carbon holder.

In the embodiment illustrated A designates a typewriter frame equipped with a platen roll carriage A; B a guide member adapted to ilt on 10 to the tabulating bar or rack bar of the carriage and`C a flexible carbon holder adapted to grip the ends of carbon strips interleaved with the stationery.

The typewriter frame A is of the usual conlo struction and is equipped with a laterally shiftable platen roll carriage A' in which is rotatably mounted a platen 6. The usual presser rolls and presser roll release mechanism lis provided to press stationery against the platen roll. The 20 carriage is further equipped with a tabulating bar or a rack bar 8 on which is mounted the guide member B. f

The guide member B comprises a vertical standard 9 which is bifurcated at itslower end 25 as indicated at i0 so as to slip into a pair of opposed notches on the tabulating bar 8. lAn

L-shaped latch member l I is riveted to the standard 9 by means lof rivets i2 so that the standard is snugly held in position. The central standard 30 ,9 is flanked by a pair of L-shaped brace members i3, to which are spot-welded laterally extending arms I4 whose ends are upturned to provide journals I5 for a guide roller I6 mounted on trunnions Il. A rearwardly extending curved member i8 is also rigidly connected to the members e and I5 and its rear end portion is doubled back as indicated at i9 around the U-shaped member 20 which serves to guide the stationery to the platen roll. A capped stud 2| is rigidly connect- 40 ed to the frame member at the junction of the members IB and 20.

The carbon holder C preferably is made o! a exible fabric and comprises a plurality of U- shaped cross members 22 which may be stitched 45 or glued at 23 to the rearwardly extending train 2|. The train, preferably, is tapered rearwardly and terminates between a pair of stiffening members 25 which may be of cardboard or the like. The train is provided with a longitudinally ex- 50 28 which is adapted to be impaled stud 2| and forms a lost motion connection between the carbon holder and the guide member. Preferably, the edge portions o! thetrain are protected by a binding strip 21 and by the capped bers 22. Carbon strips Il are then interleaved` between the strips and their rear edges folded back over the cross members 22. The assembly may then be placed on the machine so thatthe stud 2| engagil the slot 28 in the train and the advanced edges of the loaded-stationery may be turned into writing position by means of the platen roll l. As the form is filled inthe stationery is gradually advanced and finally the carbons 3i may be turned completely beyond the typewriter roll. 'Ihe presser mechanism is then released by means of the lever 1 and the completed set of forms may be drawn forwardly which will strip the carbons into the next succeeding set of forma due to the fact that the rear end of the slot C is engaged by the stud 2 i. The reinforcing member 2l, being stiil, distributes the tension across the train 24 and the holder will not become wrinkled. The completed set of forms may then be detached and the succeeding set of forms set back into typing position by means of the platen roll l. As the carbons are backedtup the train will also move rearwardly and the lost motion connection will prevent the carbon holder from becomingdisconnected from the guide member. l

The foregoing detailed description is given for clearness of understanding only and no unnecessai-y limitations should beunderstood therefrom, but the appended claims should be constiued as broadly as permissible, in view of the prior art. t

I claim: 1. In combination: a typewriter having a traveling carriage provided with a rotatable platen; a guide member mounted on said carriage to direct'continuous-form stationery to said platen, Y

said guide member being equipped with a capped lstud; and ilexible carbon-holding means adapted to hold carbon strips in` interleaved relation with stationery led therethrough, said means being equipped with a fabric train having a longitudinal slot. said slot being impaled by said stud to form a lost motion connection.

2. In combination: a typewriter guide member comprising a standard adapted to engage the tabulating bar of a typewriter, a frame mounted on said standard and equipped at its rear end portion with outwardly and upwardly extending guide-arms, a guide roller journalled in the front end portion of said frame, a capped stud fl'xedly mounted on the rear portion of said frame; and a fabric carbon holder comprising a rearwardly extending train having a longitudinal slit impaled by said capped stud, and a plurality of cross-members about which carbon strips may be folded and held in interleaved relation with continuous-iorm stationery.

3. A device as specied in claim 2 in which the cross members of the carbon holder are U-shaped and lie in superposed relation with -their end portions stitched to the train.

4. A device as specified in claim 2 in which the rear end portion of the fabric train is provided with a laterally extending stitlening member.v

5. In combination: a typewriterhaving a traveling carriage provided with a rotatable platen; a guide member mounted on said carriageto direct continuous-form stationery to said platen, said guide member being equipped with a capped stud; and a fabric carbon holder comprising a train provided with a longitudinal slot making a lost motion connection with said stud, a plurality of cross bars adapted to'hold carbon strips in interleaved relation with continuous-form stationery led from said guide member to the platen, said slot being of suiiicient length to permit the cross bars of the carbon holder to be advanced beyond said platen.

6. In combination: a typewriter having/a transversely shiftable carriage provided with Va rotatable platen; a guide-member connected to said carriage to direct continuous-form stationery to said platen; exible carbon-holding means adapt ed to hold carbon strips in interleaved relation with stationery led through said holder; and pin- 1and-slot connecting means in the rear of said platen forming a lost-motion connection between (said Vcarbon-holding means and said guide-member.

CHARLES WINTER.

Images