Patent GB-221163-A (GB)
Title: Improvements in and relating to the recording mechanism of record-controlled machines for compiling statistics
Filed: 1923-05-30
Abstract: 221,163. Haddan, A. J. H., (National Cash Register Co.). May 30, 1923. Selective perforating machines. - In recordcontrolled machines more particularly of the type described in Specifications 184,824, [Class 106 (i), Calculating &c.], and 185,071, a printed and/or perforated record is compiled from the entries standing on a number of totalizers on a record material mounted on a carriage slidable into and out of the machine. Two carriages are provided one for the detail record and one for the printed summary record. When producing the former record certain electric contacts on the record band feed member co-operate with analyzer contacts for setting the differential, printing and perforating mechanisms or are thrown out of action when the carriage is removed and when producing the latter form of record means are provided to prevent actuation of the perforating mechanism. Record band mounting and driving. The detail record band 535, Fig. 11, is mounted on a carriage consisting of three castings forming a rigid framework and adapted to slide into and out of the machine on rails 546 to which are pivoted rails 547 that are connected by a slotted U- shaped member 551 in the slots of which rest pins on links 554 pivoted to the framework and so arranged that the rails 547 can form extensions of the rails 546 to permit the carriage to be removed. The carriage is held in position by a locking arm 559 mounted on a shaft 558, Fig. 1, which is held in its set position by a spring- pressed pawl 565 pivoted to the carriage and engaging one or other of two notches on a lever 561 fixed to the shaft 558 and provided with hooked ends engaging pins 562 on the carriage to act as additional securing means. The record band is wound on a mandrel 570 and passes over a guide-drum 572 and feeding-drum 573 to a receiving mandrel 571. The mandrel 570, Fig. 17, comprises a slotted tube removably supported at the ends on a hub integral with a shaft 578 and a hub integral with a shaft 582, the latter hub having means to produce, an amount of friction to oppose the turning of the mandrel. Guide discs 589 are provided for the record band and the shaft 578 has a groove in which engages a spring-pressed pawl to prevent lateral movement. A knob 586 is provided for manual adjustment. The receiving mandrel 571 is very similar in construction, the right-hand end thereof, Fig. 20 is supported in a hub 599 integral with a shaft 601 on which is mounted a hub 603 carrying a gear wheel 625 and frictionally pressed against the hub 599 by a spring surrounding the shaft 601. The guide-drum 572, Fig. 17, consists of two heads 608, 609 secured to a shaft 611 and an insulating cylinder 614 having a central metal contact 615. The feed-drum, Fig. 20, comprises heads 616, 617 having pins for engaging holes in the record band and an insulating cylinder 619 provided with twenty contact bands 620 and two single-contact bands 621, 622. The receiving mandrel is driven by gearing through a pinion 629 on the feed-drum actuated by Genevamechanism 633, 639, 641, Fig. 16; the Geneva wheel 633 has a lug 631 adapted to engage one of the five notches 630 in the feed-drum head' 617. This head 617 also carries a notched disc 645 with which co-operates an aligning arm 647 actuated by an arm 649 and roller engaging a cam-race in the disc 639. Latch devices are provided which are normally free but are adapted to hold the feed-drum to prevent displacement of the record band when the carriage is removed. The record band is maintained in contact with the drums by means of rollers 513, 533 mounted on arms and associated with spring-controlled arms 557, 567 on shafts 532, 556. Each arm 557, 567, Fig. 4, has pivoted thereto a pitman 590 on which is mounted a roller engaging a cam 569 on the locking shaft 558; this arrangement effects the disengagement of the contact rollers when the shaft 558 is operated to enable the carriage to be removed. The printed summary record carriage, Figs. 26 and 27, is similar to the carriage described above, but the mandrels and drums are narrower and the manner of feeding is different. This record band is fed over a guide-roller and between feed-rollers 1340, 1341 and passes over a circular guide 1342, Fig. 27, out of the machine. The guide-roller consists of an insulating cylinder having a contact band 615 located the same distance from the front of the carriage as in the guide-drum 572 and cooperating with contacts 708, 710, which serve to control the machine if no record material is present or if the material should break. The feed-rollers are fixed to shafts 1350, 1352, the latter being mounted on levers 1353 under the control of a spring which maintains the rollers in contact. The Levers 1353 are depressed by an arm 1356 when it is desired to feed the record band by hand, the arm having a projection provided with an aperture surrounding the shaft 1350 to limit the amount of depression. The record band is fed by the Geneva-mechanism previously described and by gearing 1363, 1364. Perforating-mechanism. The various punches,. which are differentially set as described in Specifications 181,072 and 185,071, all project through a U-shaped plate 1100, Figs. 7 and 11, and have shoulders which rest against the upper side thereof. The. punches, which register with a dieplate 1107, are guided by an L-shaped bar 1101 and have semi-circular extensions which pass through similar holes in a guide plate 1102 so as to co-operate with the usual form of actuator 1082. The plate 1100 is attached to arms 1103, 1104, Fig. 6, supported by a shaft 1049 which is mounted on arms 1106 one of which is adapted to be rocked by a lever 1112 loosely mounted on the shaft 670 and having at its lower end a roller engaging a cam-race on a disc 1115 Fig. 9, loose on a shaft 984 that is operated only during totaling operations. A clutch member 1116 rotatable with the shaft 984 is effective to rotate the disc 1115 when a detail record carriage or a carriage having a band to receive a printed and perforated record is in the machine. For this purpose the carriage has a pin 1378 adapted to engage and rock the lower end of a lever 1375 Fig. 9, which is fixed to a shaft 1371 provided with a forked arm 1372 having rollers engaging an annular groove in the clutch member 1116. When the printed summary record carriage is in position the perforating mechanism is rendered inoperative by disconnecting the clutch member. This declutching is effected by a pin 1379 on the said carriage being adapted to engage the upper end of the lever 1375 and to rock the lever in the opposite direction to that of the pin 1378.