Patent GB-465479-A (GB)
Abstract: 465,479. Cash registers. NATIONAL CASH REGISTER CO. Nov. 7, 1935, No. 30766. Convention date, Nov. 7, 1934. [Class 106 (i)] In a cash register or similar accounting- machihe wherein totalizer selection is effected by keys, the differential means associated with the totalizer-selecting keys are driven in adding operations by the machine operation but, in total-taking operations, are driven prior to the commencement of the machine operation. In an adding operation, the machine operates in the usual manner, the totalizer-selecting differentials being driven from the main shaft during the first half of the cycle and the selected totalizer being engaged with the actuators during the second half of the cycle. In a total or subtotal taking operation, however, the adjustment of a total-taking control lever to total-taking position, after a totalizer-selecting key has been depressed, serves first to drive the differentials for the selecting banks and then to release the machine, so that the selected totalizer may be engaged with the actuators at the beginning of the machine operation. The invention enables total or subtotal taking to be effected in a single cycle of machine operation, while permitting the levers, that are normally used to select a totalizer for total-taking, to be dispensed with. It also enables a total to be transferred from a multiple item totalizer to a grand totalizer situated on the same row in a single cycle of machine operation. Keyboard. In addition to the usual amount banks 10, Fig. 1, and totalizer-selecting banks 11, 12, 13 for the clerks, departments and trans-. actions, the machine is provided with a multipleitem key 14 and motor key 15 situated in a single bank, a total-taking control lever 16 and an operation control lever 18. The operation control lever 18 is adjustable from " Add " position to the usual positions for taking totals and subtotals from the classifying totalizers and grand totalizer, and to a position " T " for transferring the total from the multiple-item totalizer to the grand totalizer. The totaltaking control lever 16 is operated only in total and subtotal operations. In drives the differentials for the classifying banks 11-13 and releases the machine. The differential for the bank of keys 14, 15 is driven by the operation control lever 18 so that operation of the totalcontrol lever is not necessary to initiate a totaltransfer operation. Locks 17, 19 normally prevent adjustment of the levers 16, 18 to their total-taking positions. At the end of each operation arms 221, 222, Figs. 2 and 3, rock counterclockwise to return the levers 16, 18 to " Add " position should they have been adjusted therefrom. Control of multiple-item key by operation control lever. The multiple-item key 14, Figs. 1 and 2, is held, upon depression, by a detent 204 until released by movement of the operation control lever 18 away from " Add " position. For this purpose, a cam plate 108, Fig. 3, rigid with the operation control lever, co-operates with a stud 195 to rock a shaft 198 clockwise and thus through an arm 199, Fig. 2, slide 200 and lever 203, serves to shift the detent to the right to release the multiple-item key. Differential mechanism for amount banks. The differential mechanism for each amount bank includes a pair of scissor arms 20, 21, Fig. 13, mounted on a shaft 22 and adapted to converge on a zero stop pawl 35, or the stem of a depressed key, when driven by cams 216 through a slotted lever 27 and a roller 25 connected by links 23, 24 to the differential arms. A toothed sector 20b integral with the differential arm 20 communicates the setting of the arm through a gear 38 to actuator pinions 40, one for each row of totalizers. The indicator drum and the type wheel associated with the bank are positioned by a gear 32, which meshes with a sector 30 free on the shaft 22 and moved directly from one setting to another by a stud 31 projecting from the sector into the paths of the differential arms 20, 21. - Differential mechanism for totalizer-selecting banks. The differential mechanism for each of the totalizer-selecting banks 11 ... 13, Fig. 1, comprises a pair of scissor arms 41, 42, Fig. 4, normally held in open position by a spring 48, but adapted to converge on a zero stop pawl 62 or the stem of a depressed key when. driven by an arm 47 through an arcuate surface 46, roller 45 and links 43, 44. A sector 66 co-operates by a stud 65 with the scissor arms to set an indicator drum 301 and type wheel 310. In adding operations, the driving arms 47 are rocked during the machine operation by a bail 55 operated by a cam 58, Fig. 2, on the shaft 22. In total taking operations, however, the driving arms are rocked prior to the release of the machine by a bail 49 actuated by the totaltaking control lever 16 through stud 52 and slotted arm 51. The differential mechanism for the bank containing the motor bar 15 and multiple-item key 14 is similar to that just described, but is driven in total-taking operations by the operation control lever 18 acting through a stud 210, Fig. 3, slotted lever 212 and bail 213. Classifying totalizers. The totalizers for the various accounts are arranged in three rows of four, the wheels 80, Figs. 7 and 13, of each row being carried by a shaft 78 shiftable axially to select the desired totalizer and rockable about a shaft 74 to mesh the wheels with the actuators 40. Grand and multiple-item totalizers. These are mounted on a fourth shaft 78<1>, Figs. 7, 13 and 17d, and comprise for each denomination a grand totalizer wheel 150, a multiple-item totalizer wheel 151 and an additional wheel 154. The shaft 78<1> is shiftable axially by the differential mechanism of the key bank 14, 15, Fig. 1, to select either the multiple-item wheels 151 or the additional wheels 154 for engagement with the actuators 40. Means comprising a wide pinion 168 and a pair of connected pinions 165 are provided to couple each additional pinion alternately with the associated wheel 151 and 150, respectively, during a machine operation. In the position of rest, the pinions 165 are effective to couple the grand totalizer wheels 150 to the additional wheels 154, Fig: 17n. Before the actuators move, however, the pinions 165 are disabled and the wide pinions 168 rendered effective to couple the multiple-item wheels to the additional wheels, Fig. 17m. After the actuators have made their first movement and before they are restored, the pinions are returned to their original positions, Fig. 17d. Thus in all " Add " operations,the pinions 165 are in coupling position during the effective movement of the actuators. The means for controlling the coupling and uncoupling of the pinions 165, 168 comprise a cam 179, Fig. 10, acting through a pitman 177, slot 176, stud 175, lever 173, and links 172, 169, 170 to open and close pairs of scissor arms 166, 167 carrying the pinions 165 and the wide pinions 168, respectively. These means are disabled, in a grand total or subtotal taking operation, by a cam 183 set by the operation control lever 18. The cam operates through a roller 182 and link 181 to raise the pitman 177 and position the wide part of the slot 176 in the path of the pin 175 while simultaneously raising a roller 218 on the pitman into abutment with an arm 219 of the lever 173 to maintain the pinions 165 in coupling position. Totalizer selecting and engaging mechanism. Each row of classifying totalizers 80, Fig. 7, is mounted in a frame comprising brackets 77 carrying shafts 78, 82 and rigid with shaft 74. To select a totalizer in the row, the shaft 74 with the frame is shifted axially under the control of the differential mechanism of the associated bank 11, 12, or 13, Fig. 1. The selected totalizers are engaged simultaneously by means of plates 84, key-hole slots 83 in which embrace the shafts 82. The plates are linked together and rocked about the shafts 74 by a link 86, a roller 87 on the free end of which normally engages in a recess in a segment 90 rocked by an eccentric 92. The eccentric is rotated through gears selected by the operation control lever 18 to engage and disengage the totalizers at the required times in adding, totaltaking and subtotal-taking operations. If no key is depressed in one of the banks 11 ... 13, the associated totalizer row is not engaged, a reduced part of its shaft 82 being aligned with the key-hole slot 83. The plate 841 for the grand and multiple-item totalizer row has a circular slot in place of the key-hole slot and is connected to the engaging segment 90 by a link 86<1>, a roller 87<1> on the free end of which engages within a recess in the segment. To control the effectiveness of the engaging mechanisms, the rollers 87, 871 are entered and removed from their recesses in the segment 90 by a cam 190 set by the operation control lever. Total-taking mechanism. Upon the adjustment of the operation control lever 18, Fig. 1, from " Add " position, the differential for the bank 14, 15 is driven. Now upon the adjustment of the total-control lever 16 to' total. taking position, the differentials for the totalizer-selecting banks 11 ... 13 are driven. As the total-control lever reaches " Total " position, it releases the machine, the selected totalizer is engaged and its pinions reversely rotated until they are arrested in zero positon by the abutment of their zero-teeth 136, Fig. 13, with pawls 137. This is effected by locking the subsidiary differential 21 for each amount bank and allowing the main differential 20 to rotate its associated totalizer pinion through segment 20b, gears 38 and actuator 40. As the zero tooth reaches its stop pawl, it arrests the main differential and operates means to release the subsidiary differential 21 which then closes on the main differential and positions the sector 30 and the associated indicator and type wheel. For this purpose, each amount bank is provided with a lever 128 pivoted on a