Patent GB-190715268-A (GB)
Title: Improvements in Cash Registers
Filed: 1907-07-02
Granted: 1908-07-02
Abstract: 15,268. National Cash Register Co., [National Cash Register Co.]. July 2. Receipts, checking and recording; counting- apparatus.-In lerer-set lever-operated cashregisters, all the operations are positively performed without the employment of springs; the items are first placed on an intermediate set of wheels, from which the setting-parts are then disconnected and locked, the wheels being subsequently reversed while in gear with the totalizing-counter, and the setting- parts finally restored. The totalizing-counter is locked except during registration and transfer, a positive transfer-mechanism being employed. The improvements relate chiefly to (1) the setting- mechanism ; (2) the actuating-mechanism; (3) the means for preventing overthrow on the totalizing-counter; (4) the return of the setting- parts ; (5) the transfer mechanism; (6) the locking of the totalizing-counter; (7) the control of the setting-parts during operation ; (8) the in icating - mechanism ; and (9) the zeroizing- mechanism for the totalizing-counter. (1) The parts which set the mechanism for the subsequent operation, which is derived mainly from the principal shafts 57<a>, 81, Fig. 1, both driven by the operating-handle, consist of a segment 19 for each bank, having recessed and numbered finger places which are selected and brought down to a bar or the like upon the casing by the operator, and of segments attached thereto which communicate motion to the nested printing-wheel sleeves and to a segment 32 in one with the pivoted arm carrying the actuating-segment 35. (2) This segment is constantly in gear with the positioning- pinion of three gear-wheels, namely, the positioning-wheel 46, the controlling-wheel 48, and the actuating-wheel 47, which are provided for each numeral wheel 41, Fig. 6, of the totalizing-counter and are all loose upon the spindle 44. During setting, broad pinions 57 are in position to couple the positioning and controlling wheels, but are withdrawn immediately operation begins, so that the return of the setting-parts cannot affect the controlling : wheel As the operation proceeds, the spindle 44, which has been carried forward by the controlling-wheel, is restored together with these wheels, and therewith moves the numeral wheels to a corresponding extent, the second set of broad pinions 61 being at that time in engagement with the actuating and controlling wheels 47, 48. (3) As each controlling-wheel returns to its initial position, a pin thereon strikes one of the links and positively arrests the numeral wheel. (4) The actuating-segments and setting-levers are all returned to initial position by means of a yoke 87, cam-operated from the shaft 81, and the final movement is further ensured by fingers 92 which press pins upon the segments in the required direction and derive rotation from shaft 67<a>. (5) The transferarrangements, of the trip-andsubsequently-operated kind, are shown in Fig. 1<c>. By suitable combinations of link-work operated from the two main shafts, the transfer pawl 126, carrying the transfer teetb, is slid forward to engage the pinion 43 of the higher wheel, and the parallel bar 123 with upwardly-turned arm is then rocked about the shaft 125; if the transfer tooth 101 on the lower wheel has previously rocked the bent trip lever 102 and drawn the bar 123 forward, the latter, during the rocking motion about shaft 125, carries up a flange on the transfer pawl 126 and effects a transfer. Normally, the bent lever 102 is locked ; but a notched disk is provided upon the corresponding counter-actuating pinion 47 whereby the locking-pawl 106 is withdrawn and the bent lever is capable of movement. The bars 123 are all rocked successively during each operation ; but if in any case the trip-lever has not been moved, a notch on the bar simply surrounds the flange and no transfer takes place.; if one of the transfer pawls accidentally moves forward, it becomes locked against chance rotation. (6) The totalizing-counter is normally locked by means of detent pawls 201 upon the spindle 53, Fig. 1, which engage with the actuating-pinions 47 aud are withdrawn during actuation by means of the cam upon the main shaft 57<a> and the intermediate link-work shown in Fig. 4. For special transactions, a separate setting-segment is provided which throws out the mechanism by which the bread pinions 61 are brought into play, and simultaneously locks all the counter detents in the engaged position; to permit them to remain thus during the subsequent operaticn of the machine, a spring member is inserted in the mechanism for disengaging the pawls. (7) To lock the setting-parts in their set position and to prevent reversal during their return, arms 231, 243 are respectively provided and are mounted to be capable of slight angular play upon their shafts 232, 244, and spring plungers 251 upon the non- reverse arms bear on the alining arms. These arms are so controlled by means of cams upon the main shaft 81 and the pivoted locking-bar 234 that the alining arms are only lightly in engagement during setting, and are then pressed tightly against the segments to hold the setting-parts during the actuation of the counter, after which they are in part withdrawn and the non-reverse arms come into play during re-setting. (8) The indicating-mechanism is of the type described in Specification No. 27,803, A.D. 1903, and No. 24,014, A.D. 1905. Each indicator 301 is operated by mechanism including a lever 306 with a roller engaging a slot in the corresponding segment and having attached thereto a vertical rod 308 which is given a complete upward and downward movement before the segments are returned. (9) Zeroizing is effected by the rotation of the counter spindle, which at tha same time moves longitudinally and effects engagement of pins on the numeral wheels and spindle, the parts 361 ... 367 being involved as shown in Fig. 6. Simultaneously, the counter detent pawls are thrown out of gear.