Patent GB-457793-A (GB)
Abstract: 457,793. Accounting-machines. BREWER, G., 33, Chancery Lane, London.-(National Cash Register Co. ; Dayton, Ohio, U.S.A.) June 5, 1935, No. 16347. [Class 106 (i)] Keyboard interlocks; piinting totals.-An accounting-machine of the type adapted to register continuously two or more series of entries of different kinds, is provided with a separate accumulator for the amounts of each series of entries (e.g. deposits and withdrawals), the appropriate accumulator being selected manually at the initiation of any series and engaged automatically at each entry of the series. Means are provided to prevent the engagement of the selected accumulator when an old balance is being entered or a new balance effected. The invention is described as applied to a machine of the kind forming the subjectmatter of Specification 368,117, having amount keys 10, Fig. 1, auxiliary totalizer keys 11, 12, " old balance " keys 13, 14, selecting keys 15, 16 for deposits and withdrawals, " new balance " headless keys 17, 18, a motor bar 19, totalizerselecting levers 1 ... 3 for use in total-taking, a balance-totalizer control lever 4, and a control lever 5 for the remaining totalizers. In order to adapt the machine for dealing with long lists of deposits and withdrawals, two accumulators are provided, a deposit accumulator E controlled by a key 21 in the withdrawal bank and a withdrawal accumulator A controlled by a key 22 in the deposit bank. The appropriate accumulator key is depressed at the beginning of a listing series of operations and remains depressed until manually released. The depression of an accumulator key prevents the depression of an inappropriate auxiliary totalizer key and of the other accumulator key. Means are provided to prevent the entry of a balance into an accumulator. Interlock between deposit and withdrawal accumulator keys. The depression of the deposit accumulator key 21, Fig. 2, shifts a slide 24 upwardly thus, by means of a link 25, rocking a shaft 28 clockwise and interposing a stud 26 on the link beneath a hook arm 29. This hook arm is rigid with a sleeve 30 and adapted for clockwise rocking by the depression of the withdrawal accumulator key in similar manner to the shaft 28, the arrangement being such that the depression of one accumulator key prevents the depression of the other Interlock between accumulator keys and the operation control lever. To prevent the depression of an accumulator key 21, 22, Fig. 1, when the control lever 5 is set to one of its two lowest positions to take a total or subtotal from an auxiliary totalizer, and conversely, to prevent the setting of the control lever to one of these positions while an accumulator key is depressed, arms 27<a>, 31<a>, Fig. 2, on the shaft 28 and sleeve 30, co-operate respectively with cam discs 36, 37, on a shaft 35 set by the control lever. Taking totals from the accumulators. To take a total from an accumulator, the control lever 5, Fig. 1, is set to " zeroize accumulator " position, the appropriate accumulator key 21, 22 depressed, and the machine released by depression of the motor bar 19. Auxiliary means are necessary to free the motor bar in these operations. The usual locking means for the motor bar, shown in chain lines in Fig. 4, are connected through a lever 96, and slotted links 94, 104 to spring-urged bell-cranks 92, 102. The bell-cranks are normally restrained by arms 90, 100 on the shaft 28 and sleeve 30 rockable by the accumulator keys 21, 22 respectively, and are further restrained by cam discs 98, 108 on the shaft 35 set by the control lever. Upon the adjustment of the control lever to " zeroize accumulator " position, and the depression of an accumulator key, one bell-crank is freed and rocks clockwise to disable the motor bar locking means. Control of accumulators in balance operations. In operations involving the entry of an old balance or the taking of a new balance, the accumulator selected by the depressed key 21 or 22, Fig. 1, is not engaged with the actuators. The accumulator-engaging eccentrics 83, 87, Fig. 7, are driven from an assemblage 74 ... 76 on a shaft 73, through wheels 71, 72 on a stub shaft 70 and gearing. In balance operations, the wheels 71, 72 are shifted axially to a position in which their driving connection with the assemblage is broken and the eccentrics do not become operative to engage an accumulator. Upon the depression of any one of the balance keys 13, 14, 17, 18, Fig. 1, a slide 44, Fig. 7, is raised to rock a lever 45 and thus, through a pin 47, shift a link 49 downwardly and enter a roller 54 of a lever 50, 53 in the cam groove 56<a> of a cam 56. Now, upon the operation of the machine, the cam lowers the link 49 further and by pin-and-slot connection 57, 58 rocks a lever 59 clockwise.' This movement is communicated through a link 62 to a cam 63 that shifts an arm 68 axially of a shaft 67. The wheels 71, 72 move with the arm 68 to non- coupling position. Specification 263,129, [Class 106 (i), also is referred to.