Patent GB-857244-A (GB)
Title: Consecutive data recording apparatus
IPC: B41K3/00
Filed: 1957-08-30
Abstract: 857,244. Number-printing apparatus. BURROUGHS CORPORATION. Aug. 30, 1957 [Sept. 17, 1956], No. 27427/57. Class 100(2) Recording apparatus comprises a rotary member, means for driving the rotary member through cycles of rotation, and one or more recording members carried by and rotatable with the rotary member, each recording member including a recording element adapted to make a permanent record on a record sheet, wherein each of the recording members is settable to differential positions around the circumference of the rotary member relatively to a fixed point on the circumference to thereby represent different data to be recorded, and indexing means for automatically advancing the recording member or members around the circumference of the rotary member during each rotational cycle of the rotary member to cause consecutive representations to be recorded as the apparatus performs consecutive cycles of operation. As shown the machine comprises a base 10 having a casing 11 in which is supported a rotary recording or printing cylinder 500 having four number printing discs 510, two only being shown in Fig. 2, for printing on, for example, cheques fed by a belt 26 between the cylinder 500 and an impression cylinder 26 against a stop 224. The feed of the cheque against the stop 224 and the initiation of the clockwise rotation of the cylinder 500 may be as described in Specification 809,979. Cylinder 500 comprises end plates 502, 503 secured together by rods 504 and freely mounted on a drive shaft 501. Drive is communicated to the plates 502, 503 from shaft 501 by a coupling 506. The discs 510 are also freely mounted on shaft 501 and each carries a recording or printing element 511 and an indexing segment 512. Elements 511 are formed to project from a semi-circular ring 513 on the disc 510 which is formed with an abutment 514 adapted to rest against a limit bar 515 under the action of a spring 526. The segments 512 are each provided with a series of notches 520 co-operable with an advancing pawl 530, and with a series of retaining notches 521 cooperable with a retaining pawl 541. A sheet gripping member 528 is secured to end plate 503 to constrain the sheet to move at the peripheral speed of rotation of the cylinder 500, and the elements 511 are settable within the ircumferential limits of the member 528. The pawl 530 has a stepped nose 530<SP>1</SP> engageable with notches 520 of the segment 512, and is supported on a shaft 531 so as to be urged by spring 532 into engagement with the notches 520. Shaft 531 is pivotably mounted to the ends of a bail 533, in turn pivotally supported on the end plates 502, 503 at 534. One arm 5331 of bail 533 carries a cam follower 535 which co-operates with a cam 537 fixed to machine frame member 51 so that once per revolution of the cylinder 500 the bail is rocked to move the pawl to advance a disc 510 one notch. With the numbering device set at zero only the "units" disc is advanced on account of the stepped nose of the pawl but as each disc is provided with a final deep notch 523, the pawl will operate the "tens" disc when the "units" disc is to be returned to zero, the "hundreds" disc when both the "tens" and "units" discs are to be returned to zero and so on. A fixed plate 538 is provided with a camming surface 5381 which is engaged by a roller 539 fixed to pawl 530 by a pin 540, the purpose of the mechanism being to disengage pawl 530 from the segment 512 when it is being returned to normal position after being pivoted to advance a disc. Pawls 541 are provided for retaining each disc in set position against the action of the springs 526. The pawls 541 are pivotally supported from a shaft 542 and urged into contact with the notches 521 by springs 543. The pawls can be held out of engagement with the notches 521 by latching elements 544. At the commencement of operation the pawls are thus latched and are released by a second cam operated bail 549 operated once per revolution of cylinder 500. When a disc has been rotated to its highest number and is to be returned to zero the pawl 541 associated therewith is engaged by a cam 522 on the element 512 which depresses the pawl beneath its latching element 544 so that the disc is returned to zero position under the action of spring 526. The pawl is again released during the next cycle when bail 549 operates the associated element 544. U.S.A. Specification 2,071,139 also is referred to.