Patent GB-733829-A (GB)
Abstract: 733,829. Cash registers. ANKER-WERKE AKT.-GES. March 25,1953 [Nov. 3, 1952], No. 8270/53. Class 106 (1). A cash register or similar machine is provided with removable and interchangeable check strip and voucher printing mechanisms so that the machine can be adapted to print either an issued voucher or a retainee record strip. The invention is shown applied to a key-set and operated machine embodying, as in Specification 141,012, [Class 106 (1)], a rocking keycoupler 110. The present machine includes a push-rod 109 and a spring-actuated slide 112, both operatively connected with the key coupler and adapted to effect, respectively, paper feed and printing impression in either printing mechanism. Bearings 102 incorporating spring- pressed balls are provided on the machine frame for securing the printing mechanism in position, and with its operative parts in register with slots in the push-rod 109 and slide 112, the balls being adapted for engagement with conical seatings formed in abutments 101 carried by the frames of the printing mechanisms. Also incorporated in the machine itself are the typewheels 165 together with the alignment and inkribbon mechanisms. The check strip printer (Figs. 1 and 2) comprises a carrier frame 105, for guiding the check strip, pivotally supported between the arms 103 of a yoke rockable on a shaft 111, the cross-bar 104 of the yoke being adapted to engage the slot 109a in the push-rod 109 when the printer is inserted into the machine. A roller 113 on an arm 114 spring-connected to the frame 105 then engages in the outer end of the slot in the slide 112. The impression hammer 175 is carried at the outer end of the frame 105, whilst the check strip 117 is led from a supply roll 118, round rollers on the frame 105 to a take-up roller 121 driven by pawl-and-ratchet mechanism 122, 138 from the yoke 103. When the machine is actuated, the push-rod 109 rocks the yoke clockwise to line space the strip. At the same time the yoke displaces the frame 105 to the right, bringing the hammer 175, with the checkstrip beneath, over the type-wheels 145, and engaging the roller 113 fully into the slot in the slide 112. Downward movement of the slide 112 then pulls the frame 105 downwardly to make the impression. The voucher printer (Fig. 5) comprises a carrier frame 230 for the voucher strip 210 likewise pivotally supported between the arms 207 of a yoke adapted to be rocked by the push-rod 109 of the machine. Similarly, a roller 232 on an arm 231 spring-connected with the frame 230 engages the slide 112 of the machine, whereby the frame is rocked downwardly to effect the impression by means of a hammer 252. The strip 210 from a supply roll 204 is led under feed rollers 212 and a tear-off knife 222 to a delivery outlet, the rollers 212 having a one-way driving connection with a pinion 208 engaging a stationary rack 205. When the frame 230 moves rearwardly to the impression position, the pinion 208 runs idly along the rack 205, whilst on the return forward movement of the frame the pinion 208 drives the rollers 212 to feed the impressed end of the strip forwardly and through the delivery outlet. Constant matter is printed by a roller between the feed rollers 212 and inked by a roller 216. Type-wheel alignment. The key-coupler 110 is adapted to rotate a cam pair 141, 142 (Fig. 2), one revolution counterclockwise at each operation. The cam 141 raises an arm 146 to tension a spring 147 acting on a bell-crank 143 so that, when a notch 181 in the cam 142 comes up to an ear 148 on the bell-crank, the latter is rocked counterclockwise to engage an aligning bar 144 with the type-wheels 145. After the impression has been made, the cam 141 releases the arm 146, and the bell-crank lever is thrown out of the position shown and held by the cam 142 with the aligning bar 144 clear of the typewheels.