Patent GB-952579-A (GB)
Abstract: 952,579. Cash registers; selecting totalizers. NATIONAL CASH REGISTER CO. Dec. 3, 1962 [Jan. 17, 1962], No.45493/62. Heading G4T. Interspersed totalizers are shifted from a central position, according to which of a set of control keys is depressed, by movement of a differential segment 39 which is centralized at the beginning and end of each machine cycle. Totalizers. There are lower and upper totalizer lines of which the latter is not described and receives item amounts according to which department (Row 2) key is depressed. Item amounts are also entered into the central of the interspersed totalizers of the lower line. The total accumulated is transferred to a lower totalizer selected by depression of a clerk's key (Row 1) which sets a stop 37 for segment 39. Movement of the segment is transferred by gearing 41,44, 45 and 47 (Fig. 3) to the lower totalizer shaft 48. Segment 39 is centralized by a roller 84 on lever 85. Multiple item transactions. After setting each item amount a Row 1 key is depressed to enter the amount. A cam 72 carrying a stud 114 is rotated (Fig. 7). Lever 111 is rocked clockwise and through stud 110 rocks lever 85 anticlockwise to centralize the segment 39. When stud 114 engages tail 117 of lever 111 lever 85 is disengaged from segment 39. The length of tail 117 is such that roller 84 is disengaged from segment 39 during the time it is possible to shift the segment. At this time cams 71, 72 (Fig. 3) transmit upward movements to links 162,165 which rock lever 65. A roller 62 then expands a pair of scissors levers 59,60. During an item entering operation pins 57, 58 on levers 59,60 move in a part 1 of opening 56.in arm 55. Under such conditions the only effect of the movement of the levers 59, 60 is to maintain segment 39 in its central position. At the end of the machine cycle stud 114 again rocks lever 111 (Fig. 7) to centralize segment 39 by means of roller 84 on lever 85. A total operation is initiated by depression of a clerk's key (Row 2) which lowers one of the pins 37 (Fig. 3) to act as a stop and which also cams a segment 80 (Fig. 5 now shown) to rock a bell crank 77 and this lever 55 so that parts 2 or 3 of opening 56 are occupied by the pins on scissors levers 59, 50. Expansion of the scissors levers during the machine cycle as described above then rocks segment 39 either clockwise or anticlockwise so that the totalizer shaft is shifted either to right or left to select the desired clerks totalizer. A spring 74 permits links 162,165 to compress sufficiently to take up the movement of the cam follower after the segment 39 abuts the depressed stop. Reading or resetting Row 1 totalizers. Function control fever 30 is moved to the "Read" or "Reset" Row 1 setting. This rocks an arm 105 (Fig. 7) which moves a lever 103 anticlockwise. A lever 99 is rocked clockwise by cam surface 102 which shifts a pitman 95 and connected arm 92 upwards. This breaks the normal connection between lever 111 and lever 85. Totalizer selection is now manually powered. The movement of shaft 106 carrying arm 105 is also transmitted to another arm (Fig. 4, not shown) which rigidly connects together a segment with cam slots and the segment 39, (a pin on an arm on the segment is engaged in slot 132, Fig. 3). Depression of a clerk's key then causes the pin on the key shank to engage a cam slot and rock the segment and with it segment 39 so that the required totalizer is manually selected. At the end of the read or reset machine cycle the key is restored in the usual manner with consequent restoration of the segments. An additional segment is provided to prevent operation of the subtotal key while the function control lever is in a Row 2 or Row 1 position and the clerk's keys while the lever is in a row 1 position, by interposing stops beneath the key shanks.