Patent GB-778652-A (GB)
Abstract: 778,652. Cash registers. NATIONAL CASH REGISTER CO. March 20, 1956 [April 14, 1955], No. 8611/56. Class 106 (1). In a multiple-item machine adapted for rapid working in a self-service store, the item totalizer is automatically selected upon depression of an amount key followed by operation of the machine release member. Depression of a " listing key " for item entering is thus obviated, such a key being omitted from the machine. In the embodiment described, provision is also made for automatically sub-totalling the item totalizer by again operating the motor bar after entry of one or more items, and for transferring the total to the group totalizer by operating the motor bar in conjunction with a total key. Totalizer selection. The item and group totalizers 28 and 29, Fig. 4, are interspersed on a shaft 30, the group totalizer 29 being normally aligned with the actuators 31 and the shaft 30 being shiftable to align the item totalizer by leftward movement of a cam-slotted slide 40. The slide 40 is connected by arms 44 and 45, Fig. 5, on a shaft 43 with a member 47, Fig. 6, normally resting on a stud 48 and adapted to be shifted first to the left and then to the right by the engagement of a stud 80 on a lever 79 with the edges of an opening in the member 47. The lever 79 has a fulcrum stud 83 and is pivoted at 77 to a cyclicallyoscillated lever 78 pivoted at 85. The fulcrum stud 83 is normally engaged in one or other slot 89, 90 in a segment 84, adjustable by the usual proprietor's control slide, whereby the lever 79 is disabled in the locking and total-taking positions of the slide. A stud 49 on the member 47 engages a slot 50 in a control arm 61 which has a stud 65 bearing upon the notched edge of a control sector 64 adapted to be adjusted by the differential slide 122, Fig. 2, associated with the single bank of control keys 23. During machine operation, the lever 79 first moves counterclockwise and its stud 80 displaces the member 47 to the left to shift the item totalizer 28 into register with the actuators 31. Upon return of the lever 79 clockwise, the member 47 is restored and the group totalizer 29 returned into register with the actuators provided the stud 65 rests on a high part of the control sector 64 so as to maintain the member 47 in the raised position shown. If a low part of the control sector 64 engages the stud 65, the member 47 drops in front of the stud 48 after completing its leftward movement. The edge 82 of the opening in the member 47 then lies clear of the path of the stud 80 and the member 47 is not returned as the lever 79 completes its cyclic movement. The item totalizer therefore remains in register with the actuators. Automatic selection of item totalizer. When an amount key is depressed, release of the zero stop (not shown) from the corresponding differential slide rocks a segment 117, Fig. 2, clockwise to engage a zero stop pawl 120 with the differential slide 122 associated with the control keys. When the motor bar is then depressed, the slide 122 and control sector 64 are set in the zero position with a low part of the sector under the stud 65. The member 47 therefore drops in front of the stud 48 and is not returned by the lever 79 so that the item totalizer remains in register with the actuators to receive the amount during the second half cycle. Automatic sub-totalling item totalizer. The item totalizer remains selected at the conclusion of an item entry and the shaft 43, forming part of the totalizer shifting mechanism (see above), remains in a counterclockwise position. An arm 149, Fig. 2, on the shaft then raises a stop 145 to arrest the control differential slide 122 in its " 8 " position when the motor-bar is depressed. This is a keyless subtotal position and for which the control sector 64 has a low part opposite the stud 65 so that the item totalizer remains selected throughout the cycle. Total transfer. The amount accumulated in the item totalizer is finally transferred to the group totalizer by operating the " cash total " key in conjunction with the motor-bar. During the first half cycle the item totalizer remains selected from the previous item entry operations and the amount registered is therefore transferred to the actuators. The operation of the " cash total " key adjusts the sector 64 to the position of Fig. 6 in which a raised part engages the stud 65. This raises the member 47 clear of the stud 48 and so that the edge 82 again lies in the path of the stud 80 of the lever 79. The member 47 is therefore restored and the group totalizer brought back into alignment with the actuators for the second half cycle, in order to accumulate the amount received by them from the item totalizer. Automatic no-sale operation. This is effected simply by operating the motor-bar with the group totalizer in its normal position of alignment with the actuators. In these circumstances, the stop 145 and stop pawl 120 are clear of the transaction differential slide 122 which therefore moves to the " 9 " or no-sale position, determined by the engagement of a stop 153 on the slide with a fixed abutment 154.