US2071501A - Adding and listing machine - Google Patents

Description

Feb. 23, 1937. I L..P. CROSMAN 2,071,501

ADDING AND LISTING MACHINE Filed June 19, 1936 ZSlIeets-Sheet 1 i I I p IIIIIIIIII'IIII "1 m v n NTOR.

zOiBglg Chosma r2 T mIEK Feb. 23, 1937- P. CROSMAN ADDING AND LISTING MACHINE 2 Sheets-Sheet 2 Filed June 19, 1956 INVENTOR. v L0f'i129 Chosrpgn ATTORNEY.

Patented Feb. 23, 1937 mm STATES.

PATENT OFFICE 2,071,501 ADDI NG AND LISTING MACHINE Application June 19, 1936, Serial No. 86,071

2 Claims.

The invention has relation to adding and listing machines, of the type wherein statement sheets are printed and a record of the entries is kept upon a separate tally strip. More particut; larly the invention relates to means for facilitating the feeding of the tally strip into a ma.- chine employing two ink ribbons, one for printing upon the statement sheet and the other upon the tally strip. it) The invention consists in the novel construc- ,tion and combination of parts as set forth in the appended claims.

As illustrated, the invention is shown as ap I plied to a Gardner adding and listing machine, or listing calculator, such as disclosed in U. S. Patent No. 1,946,572, issued on February 13, 1934 to the present inventor.

In the accompanying drawings, illustrating the invention:

in Fig. 1 is a vertical section through the paper feeding means of an adding listing machine equipped with the present invention.

Fig. 2 is a frontelevation of the tally strip feed devices and ink ribbon mechanism. 25 Fig. 3 is a plan view of the ribbon and printing hammer mechanism.

Fig. 4 is a detail front View of the tally strip tear-off plate.

In these drawings the numeral I designates 30 a cylindrical platen, to which the statement sheets are fed over a guide plate 2. Between this platen and the type bars 3 are located a pair of ribbon guides l, 4 adapted to hold two ribbons 5 and 6 in parallel position across the printing 35 line. The ribbon guides 4 are designed to hold the ribbons 5 and 6 in spaced relation, and to provide a channel between the ribbons for guiding the tally strip 1.

The tally'strip is inserted in a carrier 8 on the base of the machine in roll form, and is guided from the carrier between a feed roll 9 and a cooperating idler roll [0, whence the strip is fed between plates I I and i2 and a guide chute into proximity to the lower ends of the ribbon guides 4. The ribbon guides may be adjusted vertically in the usual manner to provide for two color printing, and an interval is left between the upper edge of the plates H and I2 and the ink ribbons, and in order to bridge this interval these plates are each provided on one side with an extension l3 whereby one edge of the strip will, be guided into place between the lower branches of one of the ribbon guides '4, these 55 branches completing the guiding of this edge of the strip into the interval between the ribbons 5 and 6.

From the ribbon guides t the tally strip is fed upward over a roller l4 to position immediately in rear of a tear-off plate It. Plate l5, as seen 5 in Fig. 4, is providedwith an oblique tearing edge 2d the upwardly projecting end of which is in line with the extensions I3 of the guide plates II and it. Therefore, when a section of the tally strip is torn off, the remaining portion of 10 the strip will be left with an oblique edge, so that in case it is desired to temporarily feed back the strip'out oi the machine, it may be reinserted by the operation of the feed roll 9, one side of the paper, the right hand side as shown, being guided upward between the extensions l3 and the rest of the strip following into position in the channel of the ribbon guides 4 without further manipulation on the part of the operator.

One utility of this feeding means will be in cases where a portion of the work to be done on the machine requires the printing of a record on the tally strip and where other work, to be done from time to time, requires printing upon the statement sheets only. Another utility is in connection with work, some of which is to be recorded both upon the statement sheet and upon the tally strip, and in which other work is to be recorded upon the tally strip only. In this latter case, it is desirable to feed the tally strip back from between the ribbons 5 and 6 and to reinsert the strip between the ribbon 6 and the platen I, so that the platen may not become inked by the ribbon'fi.

In order further to facilitate the changing of the tally strip to the last named position, a deflector plate It is hinged in position above the cutout portion of the guide plate ll, the plate I6 being normally held in the position illustrated in Fig. 1 by means ofa spring II. In this position, plate It forms a continuation of the plate I l and 40 the tally strip will be fed up between the ribbons 5 and 6 in the manner hereinbefore described. When it is desired however to feed the tally strip up between the ribbons 6 and the platen I, a crank extension l8 of the pivot rod IQ of plate It is held in rearward position by the operator, against the tension of spring H, the plate I6 being thus held with its free edge in contact with the plate It, so that upon the feeding of strip 1 by the roll 9,

the strip will be deflected out of the upper end of the chute, passing above plate I6 and upwardly between the platen I and the ribbon guides 4. From this point, the strip is carried over the roller l4 and in rear of the tear-off plate l5 as before. Upon release of crank 18 by the operator spring I! will move plate l6 back to its normal position, so that at the next withdrawal and reinsertion of the strip, the parts will act to guide said strip back between the ribbons 5 and 6, unless the operator again moves the crank I8.

I claim:

1. In an adding and listing machine provided with a platen and two parallel, spaced printing ribbons a roll paper feeding device comprising a guide plate adapted to direct the paper strip between said ribbons, and an adjustable plate adapted to deflect the strip to pass the same between the ribbons and the platen.

Images