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Publication numberUS1576997 A
Publication typeGrant
Publication dateMar 16, 1926
Filing dateFeb 19, 1924
Priority dateFeb 19, 1924
Publication numberUS 1576997 A, US 1576997A, US-A-1576997, US1576997 A, US1576997A
InventorsRenna Mario G E
Original AssigneeRenna Mario G E
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Typewriter attachment
US 1576997 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Patented Mar. 16, 1926.




Application filed February 19, 1924. Serial No. 693,757.

fl '0 all (whom it may goncern:

Be it known that I, MARIO' G. E. RENNA, a citizen of the United $tates, and'resident of Brooklyn, inthe county of Kings, city and State of New York, have invented cer tain new and useful Improvements in Ty ewriter Attachments, is a specification.

This invention relates to an attachment for typewriting machines for the production of more than one ribbon copy at the same time. An object of this invention is to pro vide such a device which may be readily attached to a present typewriter by the operator to make thedesired number of ribbon copies and wherein additional ribbons may 1 be added or taken from the attachment withof Figure 2,,

l rolls.

out soiling the operators hands and without the use of toolsfi According to this invention, these extra ribbons are separately mounted and may be 'added' or removed as desired by providing them in interchangeable short lengths each having uninked looped ends adapted to fit over spaced supporting pins adjusta'bly attached to each end of the carriage.

In the accompanying drawings:

Figure 1 shows the attachment in place on the carriage, V

Figure 2 is a side view of the attachment alone,

Figure 3 is a top plan view of the device Figure 4 shows one of the ribbons,

Figure 5 is an end view of the attachment in place on a carriage holding several paper In Figure 1 is shown the usual typewriter carriage 11 having platen 10, paper guides 13 and 14, and the customary ribbon 12 coop crating with the platen. Between the rib bon 12 and the platen 10 are mounted a number of additional ribbons 15 each comprising a short length having looped ends adapted to fit over the upwardly extending fingers 17 of the end supports or bars 18, each of which is adjustably attached to the carriage near its end portions. The make of typewriter illustrated is provided with screws 20 adapted to fit within the slot 19 in each end support 18 and a wing nut 21 serves to clamp each end support 18 in position. Asv shown in Figures 2 and 3. the fingers 17 are arranged so that each of the ribbons 15 may be of same length, the space between them bein.g:f 1' st en gh to enable a sheat pf p p r of which the following the danger of soiling the hands. If dc sired, only one side of the ribbon may be inked so that the back of the paper contiguous to its uninked side will not be marked.

In operation the paper may be inserted in the machine in the usual manner and the ribbons placed between each sheet so that the customary typewriter ribbon 12 marks the first sheet, the front ribbon 15 marks the second sheet, and so on. The ribbons 15 may be positioned on the finger 17 either before or after the paper is in place and after both have been placed in operative position either or both of the supporting ends 18 may be adjusted to tighten the ribbons 15 and clamp the wing nut 21.

In Figure 5 the carriage 11 is illustrated as carrying a bracket 22 in which are mounted a plurality of paper rolls 23 and 24 which may be especially suitable for some kinds of work where the paper may consist of blank forms to be filled in and then torn off along perforations. Any desired number of paper rolls may be thus carried.

mong, the advantages of this invention may be enumerated the facility of quick adjustmentof the extra ribbons 15 without soiling the operators hands. ing the headedfingers 17 through the looped ends keeps the ribbonsc'in place. If few copies are to be made the unnecessary ribbons 15 may be quickly removed to save wear while if additional copies are desired more ribbons 15 maybe easily added. With the inexpensive mounting illustrated it will be seen that each of the ribbons 15 is interchangeable since of the same length and provided with the same type of fastening means. Onereason for the increased facility of attachment and adjustment resides in the independentmounting of each of the short lengths 15. Another advantage of having each of the ribbons l5 separately mounte resides in the possibility of having some of Merely insert- In Figure the inked porthey are attached directly to the carriage and are independent of the paper guides 13 and 14. In some types of machines it will be desirable to mount the end supports 18 in some other manner than as illustrated but however mounted the facility of adjustment and removal of the extra ribbons is present.

' \Vhile the word typewriter has been used movable carriage therefor, an means inseparately supporting a plurality of ribbons in a manner to be independently removable. 2. The combination with a platen, of a movable carriage onwhich the same is -mounted, a length of r ibbonvprovided with *looped ends, and means comprising an up.-

wardly extending finger secured adjacent each end of the carriage for receiving the looped end of said ribbon.

3'. The combination with. a laten, of a eluding upwardly extending fingers secured adjacent each end portion of the carriagefor supporting a number of lengths of ribbon, said fingers adjacenteach end portion of the carriage being bodily adjustable toward and from those at the other end of the carrialfia .tocontrol the ribbon slack.

4. e combination with a platen, of a movable carriage therefor, a ribbon, an aux? iliary ribbon'adjacent the first ribbon and the platen, supporting members mounted below the platen adjacent each end of the carriage, and means on said supporting members for retainin the auxiliary ribbon in position in front 0 the laten.

5.. The combination wit a platen, of a movable carriage therefor, a ribbon, a supporting bar mounted below the platen upon each end of the carriage, a plurality of spaced fingers projecting upwardly from each of said bars in front of said platen, the

said bars being bodily adjustable transversely of said platen, and a plurality of short lengths of ribbon removably mounted upon said fingers in a position adjacent to the first mentioned ribbon and the platen.

Signed at New York city in the county' of New York and State of New York this 18th day of February A. D. 1924.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3478858 *Feb 28, 1967Nov 18, 1969Sperry Rand CorpInking mechanism for calculators and like machines
US4243330 *Jan 15, 1979Jan 6, 1981Burroughs CorporationDot printer adjustable endless loop ribbon cartridge transport apparatus
U.S. Classification400/205
International ClassificationB41J35/35, B41J35/00
Cooperative ClassificationB41J35/35
European ClassificationB41J35/35