Patent GB-425542-A (GB)
Abstract: 425,542. Cash registers. NATIONAL CASH REGISTER CO., Ltd., 225, Tottenham Court Road, London.-(National Cash Register Co. ; Dayton, Ohio, U.S.A.) Aug. 17, 1933, No. 22943. [Class 106 (i)] Machines with several item-value totalizers; printing totals and subtotals.-In a cash register of the key set and operated type, the printing of a total from a totalizer conditions such totalizer for zeroizing by a resetting member. The invention is described with reference to the machine forming the subject-matter of Specifications 135,465, 259,478, [both in Class 106 (i)], 408,975 and 415,435, and consists in the provision of means whereby the shifting of the platen 68, Fig. 3, into printing position over one or other of the totalizers 54, 55 conditions the selected totalizer for resetting by a rack 49 operated by a lever 175. Interlocks are provided whereby the adjustment of the total-control lever to total-taking position unlocks the lid 28, releases the printing frame, and locks the key-coupler. Sub-totals may thus be printed, but the resetting rack cannot be operated until released by an auditor's lock. In a modification, one totalizer may be reset by the clerk while the other is controlled by the auditor's lock as to both printing and resetting. Total-control lever.-This lever 148, Fig. 7, is held in adjusted position by a lock 153. Upon its release and movement to total-taking position, a sector 157 thereon through gearing rotates a cam 162, Fig. 9, on a shaft 161. The consequent rocking of a bell-crank 165, pin-andslot connected to a lever 168, rocks a shaft 146 and by means of a spring 169 moves a locking- arm 145 out of the path of a stop 147 on the printing-frame 62 to release the latter, while simultaneously rocking a second arm 171 into locking engagement with a stop 172 on the key-coupler 33 to lock the amount keys. In addition, an extension 173 of the bell-crank disables a latch 140, controlled also by a lock 133, Fig. 3, to release the lid 28. Zeroizing-mechanism.- Each totalizer 54, 55 comprises a number of type-wheels mounted on a notched, axially-slidable spindle 58. Sliding of a spindle moves a pinion on the end of the spindle into mesh with the resetting-rack 49 and positions the notches for picking up the usual reset pawls on the type-wheels. The two totalizers are alternatively conditioned for resetting by a flanged disc 201, Fig. 10, the flange 203 of which engages the ends of the totalizer spindles and, when rocked, moves one or other of the spindles into reset position. This rocking of the flanged disc is accomplished as the platen is moved into position over the selected totalizer, surfaces 210, 211 on a member hinged to the printing-frame co-operating with stops 205, 206 respectively, on the flanged disc to rock the disc counterclockwise or clockwise. The flanged disc is normally locked by a member 235 that engages stops on the disc, but upon the rocking of the shaft 146 by the setting of the total-control lever, the locking member is rocked counter-clockwise to free the disc. The disc remains in rocked position until the control lever is moved away from total-taking position, when it is restored by the return of the member 235 to normal position. Auditor's lock. The resetting rack 49, Fig. 3, is normally restrained by a link 231, a shoulder on which is engaged by the fork of a pitman 228. By turning the key in an auditor's lock, (not shown), levers 222, 227 are rocked to retract the pitman and release the resetting rack. Secret totalizer. The machine may be arranged to allow the clerk to print from and reset the upper totalizer, while similar operations on the lower totalizer are normally prevented by an auditor's lock 242, Fig. 12. Movement of the control lever to total-taking position moves a locking arm 243 to free the printing frame 62, as in the machine described, but a shoulder 244 on the arm prevents printing from the lower totalizer. Moreover, the pitman 228<1> is actuated directly by the control lever to release the resetting rack. The bolt of the auditor's lock, when rotated, engages and rocks an extension 241 of the locking-arm 243 to move the shoulder out of the path of the stop 147 and allow printing from the lower totalizer.