Patent GB-660615-A (GB)
Abstract: 660,615. Calculating-apparatus. NATIONAL CASH REGISTER CO. March 18, 1949 [July 2, 1948], No. 7407/49. Class 106 (i). An accounting machine comprises a travelling record-material carriage, a plurality of totalizers, actuators therefor and mechanism which engages one of the totalizers with the actuators in add timing during the first of a series of machine operations in each of which a print is made in a different predetermined columnar position of the carriage, thereafter maintains the said totalizer constantly in engaged position during each of the remaining operations of the series and disengages it in total-taking timing during the last operation of the series, whereby the engaged totalizer controls the actuators to effect repeat prints of an item in different columns of a record material. Amount keys and differential mechanism. studs 159 in the stems of the amount keys 142, Fig. 1, of each denomination co-operate with shaped apertures in a detent bar 155, a control plate 156 for a zero latch 163 and a locking bar 201, each of which is slidable between studs 157. At the end of an item entering operation, a roller 180, Fig. 4, in a disc 181 on the main shaft engages a pawl 179 to draw a slide 178 to the left and thereby to rock a shaft 175 so that a stud 173 in an arm thereon for each denomination is forced between lugs on the detent bar 155 and control plate 156. The detent bars are thus shifted to release the depressed keys and the control plates disengage the zero latches 163. The release slide 178 is restored by a spring when a tail 182 of the pawl 179 engages a fixed stud to disengage the pawl from the roller 180. The release slide 178 may be operated by a Release Key in the column of control keys. Each key. locking bar 201 is drawn to its effective position early in a machine operation by a spring 206 connected to a finger 204 in a shaft 205 which is rocked clockwise. Studs 144 in the stems of the amount keys 1-8 of each denomination co-operate with steps in a slidable actuator 146 released by rocking of the zero latch 163 and urged by a spring 167 to follow a bail 168 oscillated during a machine operation. The spring 167 is connected to a lever 150 having a pin engaging in a slot in the actuator and an arm 151 connected to a type segment 34. Totalizers. Each actuator 146 has two sets of teeth which co-operate with the corresponding wheels of No. 1 and No. 2 totalizers, the first of which is an adding and subtracting balance totalizer and the second of which is an add totalizer for accumulating the net balances of the No. 1 totalizer. A toothed extension 211 of the actuator co-operates with a No. 3 totalizer to produce repeat prints of items and balances as described below. Paper carriage. The machine cabinet 25, Fig. 1, supports rails 26, 27 for the carriage 28. The rail 26 co-operates with rollers in the carriage and the rail 27 and a rail 30 on the carriage co-operate with ball bearings. Studs 31 in the frame engage under'a shoulder in the rail 27. A removable bar 35 carried by the carriage carries control blocks 36 which co-operate in known manner with tabulating stop bars and have tappets which co-operate with hanging bar levers to control certain functions of the machine as described below. The carriage is urged to the left of the machine and is restored to the right from its extreme position by power means (not described). Driving mechanism. Depression of the starting bar 37, Fig. 5, rocks a yoke 44 to raise a pendant 47 which lifts an ear 50 of a latch 51. A spring 84 then rocks an arm 63 and a lever 55, released by the latch 51 and connected to the arm 63 by a link 65, clockwise. The lever 55 rocks a lever 62 which in turn rocks a lever 67 so that a stud 69 therein is disengaged from a plate 71 connected to a spring-loaded clutch and switch mechanism (not shown) which is thus able to operate. The motor drive then operates a connecting rod 74 which oscillates the main shaft 64 by rocking an arm 75 fast thereon. A roller 76 in the arm 75 co-operates with a cam slot in a plate 78 to oscillate the bail shaft 79 to which it is secured. The lever 55 is restored by a stud 80 in an arm on the mainshaft which engages the arm 63. A lever 57 is held by a spring to move with the lever 55 and has a projection 86 which engages a tail of the pendant 47 when the levers 55 and 57 are released and engages a shoulder 49 of the pendant, instead of a shoulder 48, with the latch 51. The latch is thus able to re-engage the lever 55 when the latter is restored so preventing a further machine operation if the starting bar is inadvertently held depressed. The starting bar 37 is also depressed when an auxiliary starting bar 38 is depressed. The drive is started also by the tabulation of the carriage to a columnar position in which a tappet 89 of a stop on the bar 35 rocks a lever 91 which rocks a lever 94 counter-clockwise. A finger 96, slidable on the lever 94, then engages a stud 98 in a lever 99, carrying a pendant similar to the pendant 47, to rock the lever 99 and so raise the latch 51 to start the drive. The finger 96 has an extension 141 by which it may be slid to an ineffective position out of engagement with the stud 98. On the return of the carriage, the tappets 89, which are flexible, byepass the levers 91, Depression of any one of the Balance, Credit Balance or No. 2 Total Keys, Fig. 2, enables a latch, e.g. 123, to enter a notch in the key-stem and to carry a slide 127 to the right. The slide 127, through a lever 131, rocks a yoke 135 which causes a lever 139, Fig. 5, to rock the lever 99 so as to raise its pendant and the latch 51 to start the machine. Depression of the Sub-Balance Key also starts the machine since it causes depression of the Balance Key, in the usual manner. The starting mechanism is locked when the carriage is between columns by an arm 376 which overlies the lever 62 and is itself locked by the abutment of a stud 375 therein against a roller 374 in a lever 373. When the carriage reaches a columnar position, a tappet 364 on the corresponding control block 36 rocks a lever 365 which, by means of a link 368 and arm 369 rocks a shaft 370. An arm 371 thereon then rocks the lever 373 to present a slot to the stud 375 and so free the starting mechanism. If the roller 374 is not provided, then on depression of a starting key with the carriage out of columnar position, the stud 375 binds against the lever 373 and the machine is not started even when the carriage reaches its columnar position. In this case, the lever 376, and thereby the other parts of the starting mechanism, are restored by operation of a hand-lever 378. Control of No. 3 totalizer engagement. Automatic sub-total and total-taking. After an item-entering or balance (i.e. transfer total) operation, the carriage tabulates automatically to a second columnar position and a second operation is automatically initiated as described above. After this, a further tabulation and a further automatic operation occur. During the initial operation the item or balance is entered into the No. 3 totalizer and in the additional operations a sub-total and a total respectively are taken from the totalizer to effect repeat prints of the amount initially printed. For this purpose, the No. 3 totalizer is selected by the raising of a hanging bar lever 231, Fig. 2, when the carriage is in its first columnar position. The lever 231 rocks a latch 229 from the path of a lever 226 so that, when plates 220, 237 on the main shaft 64 rock clockwise, a spring 238 is able to rock the arm 226 counter-clockwise when a lever 233, connected by a pitman 232 with the lever 226, is released by the plate 237. A stud 225 in the lever 226 is thus moved from the path of a finger 224 of a pawl 221 carried by a flying lever 218 pivoted on the plate 220. The pawl 221 is then engaged by a stud 223 in the plate 220 so that the lever 218 and a link 217 pivoted thereto are moved to the right. The link 217 rocks a shaft 215 carrying totalizer-engagement cams to engage the No. 3 totalizer with the actuators. The amount represented by the differential positioning of the actuators is then added into the No. 3 totalizer during the return movement of the actuators. In the present machine, the stud in the plate 220 which normally causes disengagement of the totalizer at the end of the operation is omitted and therefore during the first additional automatic operation, the No. 3 totalizer remains engaged and a sub-total is taken. In the second additional operation, a hanging bar 250, Fig. 8, is raised by a control block on the carriage to rock a lever 251 and, by a link 253, a lever 255. A stud 259 therein then cams a lever 261 clockwise and a pawl 262 thereon enters the path of the flying lever 218 during its return movement so that the totalizer-engaging shaft 215 is restored and the No. 3 totalizer disengaged. During the two additional operations the link 217 holds a lever 244 in a clockwise position and a pitman 246 to the right. The pitman 246, Fig. 4, engages a stud 198 in a bar 186 to hold the latter in a depressed position so that a pawl 189 carried by the release slide 178 is freed and coupled to an arm 192. A stud 196 in the disc 181 then rocks the arm 192 at the beginning of each operation. The release slide 178, described above, is thus operated to free any depressed keys and to disengage the zero latches of the actuators. Total-transmitting operation. Depression of the Balance Key, Fig. 2, causes a stud 200 in its latch to cam a lever 199 clockwise. The lever 199 engages the stud 198, Fig. 4, to depress the bar 186 and render the pawl 189 effective, as described above, to operate the release slide 178 which causes the release of any depressed keys and the disengagement of the zero latches. A stud (not shown) in the key-stem rocks a lever which raises the hanging bar lever for the No. 2 totalizer. A lever, similar to the lever 226 for the No. 3 totalizer, is t