Patent GB-821200-A (GB)
Abstract: 821,200. Calculating-apparatus. NATIONAL CASH REGISTER CO. Nov. 19, 1957 [Dec. 4, 1956], No. 35955/57. Class 106 (1). A calculating-machine has a frame arranged to receive record material between a set of type carriers and a platen and operable to shuttle the record material between two columnar positions independently of the platen. The invention is applied to a machine generally similar to that disclosed in Specification 598,524 and having a rear mainshaft 29, Fig. 3, oscillated during each cycle. A cycle is initiated by the rocking of a latch 46, Fig. 6, which releases a clutch control lever 35. The latter also closes a switch in the motor circuit. The machine has a set of type bars and is adapted to print an amount in two columns of an inserted card in two successive cycles and, by means of suitably arranged transfer material, to print (and over-print) the amount. on a paper strip passed round a stationary platen. Column spacing.-A pocket 113, Fig. 5, is secured to the stationary platen frame 78, 79 for receiving the card between the platen 85 and the type-bars. The card is guided laterally by plates 124, 125 adjustably clamped to a rod 117 forming with a rod 121 the laterally-slidable shuttle frame. The frame is shifted by an arm 130 actuated by a lever 135 through a link 136, the lever 135 being engaged by the end 162 of a lever 160, Fig. 7. An extension 161 of the lever 160 is engaged in turn by three studs 159, Fig. 6, in the inner face of a disc 145 having on its outer face six studs 146 engaged in turn by a pawl 147, see also Fig. 2, carried by an arm fast on the main-shaft 29. Thus, during each cycle, the disc 145 is advanced one-sixth of a revolution and the lever 160 is either cammed downwardly from the position shown in Fig. 7 by a stud 159 or is allowed to return upwardly. The shuttle frame is thus moved to the right and back to the left in alternate cycles. Automatic repeat cycle.-When the lever 160, Figs. 6 and 7, is rocked downwardly during a first cycle, it rocks a lever 164 through a lever 165, and the lever 164 rocks a lever 71 so as to actuate the machine release latch 46, to cause a second cycle to follow immediately after the first. Moreover, during the first part of the first cycle an arm 174, Fig. 2, prevents a pawl 171 from rocking the key-release bail 170 so that the depressed amount keys remain depressed for the second cycle. During the latter, the lever 160 acts through a link 177 to hold the arm 174 in an ineffective position so that the key release bail is actuated. Non-add mechanism.-A non-add control lever 179, Figs. 2 and 6, which is rockable counterclockwise to effective position by a hand-lever 182, is also rocked by the lever 160, through a link 111, to prevent engagement of the totalizer during the repeat cycle. Line-spacing-The paper strip is line-spaced by means of a pawl 88, Fig. 3, and a camoperated link 94. During the first of a pair of cycles, line-spacing movement of the link 94 is prevented by a finger 101, which is positioned under an ear 103 of an arm 99 pivoted to the link 94, but movement of the lever 160 raises the link 111, Fig. 6, and so rocks a bail 109, 105, 104 which rocks the finger 101 from beneath the ear 103 to permit line-spacing during the repeat cycle. Disabling shuttle mechanism.-On operation of a hand lever 190, Fig. 2, a lever 193 is rocked counter-clockwise and a member 196 rocks the bail 109 to allow line-spacing during each cycle. Moreover, a cam slot 199 of the member 196 engages a stud 200 in the link 177 to move the arm 174 to an ineffective position so as to permit operation of the key-release bail during each cycle. The member 196 also rocks a lever 198 which rocks an arm 203 against a stud 206 in the pawl 147 so that the disc 145 is not advanced. The lever 160 is thus not rocked and consequently no automatic repeat cycles are initiated.