Patent GB-354752-A (GB)
Abstract: 354,752. Typewriters &c. NATIONAL CASH REGISTER CO., Dayton, Ohio, U.S.A.-(Assignees of Arnold, C. H. ; 807, Riverview Avenue, Dayton, Ohio, U.S.A.) May 5, 1930, No. 13736. Convention date, May 4, 1929. [Class 100 (iv).] Paper carriages and supports; web-feeding and c u t t i n g arrangements. - The voucher - severing mechanism of a cash register consists of a fixed blade and a pivoted floating blade that is cocked and released to sever the web with a shearing action. The invention is described as applied to the machine set forth in Specifications 8119/15, [Class 106 (i), Calculating &c.], 248,763, 249,545, [both in Class 100 (iv), Typewriters &c.], and 258,522 [Class 106 (i), Calculating &c.]. Voucher-feed. The voucher strip 45, Fig. 1, passes, as usual, from a roll 46 through pairs of impression and feeding rolls 52, 50, and 57, 55, Fig. 12, and a shoot 59 to the printing point 38 and thence to the severing-mechanism 190, 192. The impression rolls together with the ink-ribbon are supported in an endwise removable frame 54 and by means of a skeleton segment 71 pivoted at 72 the roll journals and the inking-rollers 65, 66 may be shifted to disengage these rolls from the feed-rolls to facilitate the removal. The feed-rolls are driven by a Geneva. mechanism 80, 88, 86, Fig. 14, the operating pins 83, 84, 85 of which are positioned so as to impart a short feed between the duplicate impressions and then a long feed to the severing point. The pins are mounted on a disc 80 fast on a sleeve 81 slidable on the driveshaft 82 but driven by it through tenons 102, 103 and a co-operating slotted drum 106 fixed to the sleeve. Also secured to the sleeve is a stop-disc 107 adapted to take over the locking function of disc 88 when the sleeve is slid to the left to displace the pins from the plane of the Geneva wheel. The sleeve is urged to the left by a spring 108 and is normally restrained by cam projections 110, 113 on the drum 106. When at a pre-determined point in the cycle these projections clear a fixed cam 111 the sleeve assembly is forced to the left (unless otherwise prevented) to disable the voucher feed. Surrounding the drum 106 however is a cam sleeve 114 formed with a pair of tongues 122, 123, and when this sleeve is rotarily set in a certain position these tongues instead of entering recesses 124, 125 in the boss 112 abut against the face of the boss and thus prevent the displacement of the sleeve assembly and the disablement of the feed. Control of voucher-feed. (1) By manipulation of an " on and off " milled sleeve 143, Fig. 8, a cam 142 having recesses 139, Fig. 1, of two different depths, rocks a bell crank 133 so as through a link 129 and pin-and-slot connection 127, Fig. 14, to shift the cam sleeve 114 to permit or prevent the feed. The sleeve 143 is supported by a stud 144 and is urged to the left by a slidable disc 151 and a spring 150. The settings are justified and maintained by two holes 148 in the disc 142, in cocperation with a single fixed pin 149. (2) Predetermined transaction keys of the machine may Exercise an over-riding control of the feed so as to cause a voucher to be issued despite the " off " setting of the sleeve 143. For this purpose the differential-mechanism of the transaction bank positions a cam disc 154, Fig. 1, so that a high spot 160 underlies a finger 153 rigid with the lever 133 to maintain the feed. To permit the high spot to pass below the finger this is raised at the beginning of each cycle by a pair of pins 162, 163 on the disc 107 which sweep past and urge leftwards the arm 131 supporting the link 129. (3) When the totallever is set for taking a total the consequent counterclockwise turning of shaft 167, Fig. 1, rocks the lever 133 similarly to ensure the issue of a voucher. Voucher-severing. The web 45 emerges between a fixed blade 190, Fig. 10, and a blade 192 pivotally mounted on a spring-controlled bell-crank lever 194 pivoted at 196. At each operation of the machine a slide 216 descends and by means of a wedgeshaped lug 218 rocks the lever 194 counterclockwise until it is caught by a latch 226. On the return of the slide the lug 218 displaces a projection 228 of a pivoted arm 229, Fig. 6, and thus also the latch to release the lever 194 and blade 192 for severance of the web. The opening movement of the blade 192 is terminated at one end by a stop 234 and consequently the blade turns on its support to present a wide opening for the passage of the web. In the severing operation the maintenance of a shearing cut is ensured by a cam-like extension 236 of the blade 192 co-operating with a fixed pin 237, the curved edge 239 eventually engaging above the pin to permit the completion of the stroke and the locking of the blade in closed position. When the voucher-feed is disabled by the clockwise rocking of lever 133, Fig. 1, a pitman 246 is raised and through a yoke 250 displaces the arm 229, Fig. 6, endwise to bring a cutaway portion 248 of the projection 228 into the path of the lug 218 so that this fails to unlatch the knife-carrying lever 194. Control of printing-hammer. With the parts set for no voucher-issue an extension 251, Fig. 1, of the yoke 250 engages beneath a shoulder 243 on the hammer 39 to prevent its descent.