Patent GB-441340-A (GB)
Abstract: 441,340. Cash registers. NATIONAL CASH REGISTER CO., Dayton, Ohio, U.S.A. July 17, 1934, No. 20901. Convention date, July 17,1933. [Class 100 (iv)] [See also Group XIX] Hammer-impression arrangements ; web feeding arrangements; line-spacing mechanism.- In cash registers and like machines comprising a single set of type-wheels and a single hammer for printing at will on an issued check or an inserted slip, operation of the hammer during slip printing is controlled for single or multiple impression by a feeler, and operation of the check-feeding means is controlled by a handlever, the arrangement enabling the check and slip to receive a different number of impressions. Means, described below, may be provided for printing marks on the record strip to distinguish check and slip printing-operations. The mechanism shown in Figs. 1 and 2 comprises a hammer 58 and type-wheels 57 for printing on a check or slip, the hammer receiving two strokes at each operation, and the slip being line-spaced between the strokes by means of a gear-driven feed-roller which is raised to engage a feed-roller in the slipshoot 34. The machine is conditioned to print a check or slip, or is disabled, by means of a hand-lever 11 which can be set in any of three positions and is retained by a detent 15. At the end of each operation, the detent is automatically released by means of a slide 19 and a co-operating stud 21 on a cam 22, and the hand-lever, if not in the top position, is automatically restored to that position by means of a spring 13. The hand-lever is connected by rocking arms 27, 28 to a shaft 32 carrying a shutter 33 for closing the slipshoot, and an arm 35 for obstructing a vertically movable slip-feeler 36. The slip-feeler engages an arm 42 on a shaft 43 provided with a spring-urged arm 44 which is connected by a bell-crank 47 and a link 50 to a bell-crank 52 co-operating with a cam 55 arranged to permit two excursions of the slip-feeler at each operation. A hammer-look 90 loose on the shaft 43 is connected by a spring 92 to a fast arm 91 on the shaft. To condition the machine for slip-printing, the hand-lever is set in the bottom position, the shutter 33 being thereby depressed to permit insertion of a slip, and the arm 35 being removed from the slip-feeler. Normally the slip receives two impressions at each operation, the slip-feeler being restrained by the slip. When it is desired to make only one impression on the slip, a slidable stop in the slipshoot is adjusted to limit the initial position of the slip so that after one stroke of the hammer, the feeler is permitted to rise abnormally, the hammer-lock 90 swings over a shoulder 89, and a second stroke of the hammer is prevented. When the land-lever is set in the middle position, a spring-urged hammerlock 93, on a bell-crank 96 connected by a link 98 to the hand-lever, is swung over a lug 94 on the hammer, and the check-stripfeeding-rollers 106, 107 are thrown out, the machine being thereby disabled. When the hand-lever is set in the top position, the machine is conditioned for printing on a check, the hammer being permitted to make one stroke only, and the feed-rollers 106, 107 being rendered operative. The feed-roller 107 is mounted on an eccentric bearing 108, Fig. 3, and is provided with a pinion 109 co-operating with teeth 111 on a rocking arm 113 having a pin 114 for engaging a hook 115 on a slide 116 operated by a cam 119. The hook engages a slide 124 having lost-motion mounting on a slide 127 which engages an arm 130 on a shaft 131. Another arm. 135 on the shaft co-operates with a cam-lever, which is mounted on a link connected to the arm 28 and is moved into engagement with its cam when the handlever is moved into the top position. During operation, the cam-lever rocks the arm 130, the slides 127, 124 are depressed, and the hook is coupled to the slide 116. Thereafter, the feed-roller 107 is raised to engage the feed-roller 106 and is rotated to feed the check-strip into position for receiving an impression. After one stroke of the hammer, a slide 101, operated by the stud 21, engages a pin 104 on the hand-lever 11 and moves the hand-lever to the middle position, thereby causing the hammer-lock 93 to prevent a secone stroke of the hammer. Type-wheel machines index setting-arrangements.-Marks such as S, Z are printed on the record strip 156, to distinguish check and slip printing-operations, by means of types on a sector 144, Fig. 1, which is loosely mounted on the type-wheel shaft 145. A spring 147 urges the sector into engagement with a bellcrank 150 having pin-and-slot engagement with the link 98 connected to the hand-lever 11. When the hand-lever is set in the top or bottom position, the type-sector is positioned to print S or Z. When, as described above, the hand-lever is moved into the middle position during check-printing, the spring 147 yields and permits the sector to remain stationary, smudging being thereby prevented.