Patent GB-445984-A (GB)
Abstract: 445,984. Typewriters &c. DEFIANCE MANUFACTURING CORPORATION, 534, Mitchell Street, Orange, New Jersey, U.S.A. April 23, 1935, No. 12161. Convention date, May 10, 1934. [Class 100 (iv)] Type-wheel and type-bar machines; hammerimpression arrangements; sheet-feeding arrangements.-In a listing-machine provided with type-wheels for printing on cheques, the listing type-bars are provided with an abutment for resisting lateral displacement, and the typewheels are set by means of racks which move normally to the type-bars and have stepped stop-faces for engaging the type-bars. Insertion of the cheque in the machine may be arranged to engage the motor-clutch and initiate operation of an impression-platen. The machine shown in Figs. 1, 3 and 5 comprises a listing and accumulating unit 1 attached to a type-wheel unit 3 which is arranged above a platen, motor, and cheque-feed unit 5. Units 1 and 3 can be raised about a pivot 4 to afford access to the mechanism. A latch 58 connects units 3, 5. When units 1, 3 are in raised position, contacts on units 1, 5 are broken, the circuit of the motor 40 is opened, and operation of the machine is prevented. Unit 1 is constructed in the manner described in Specification 389,632, [Group XIX], and comprises keycontrolled setting-levers for the type-bars and accumulators, the setting-levers being normally restrained by dogs carried by a shaft 6. Unit 3 comprises cheque-printing type-wheels 18 having pinions engaging spring-urged racks 23 formed with stepped stops 25 for engaging stops 28 on extensions 26 of the type-bars, the arrangement causing the type-bars and typewheels to be set to the amount set on the keyboard. The racks are normally restrained by dogs 22 which are releasable by means of a lever 21 operated by a cam 20 on a shaft 19 connected by links 31, 30 and a bell-crank 32 to the shaft 6. The cam is so arranged that the type-bars have come to rest before the racks are arrested. To resist rearward displacement of the type-bars, the stops 28 are formed as bent lugs abutting on plates 29 or a comb for guiding the extensions. The motor 40 is geared to a shaft 39 provided with a clutch-member 38 which co-operates with a pawl 41 on a clutch-member 37 having a pin 36 co-operating with a slot 36<a> in a sliding link 34 connected to the bell-crank 32. The pawl is normally held by a latch 42 which is connected by a link 44 and bell-crank 52 to manual and automatic controls described below. On release of the latch, the pawl engages the clutch-member 38 and, after one revolution, the pawl is disengaged by a co-operating pin 46 and lug 47. The latch is arranged to close contacts 45 for maintaining the motor circuit during one revolution. A platen 27, Figs. 3 and 5, for printing from the type-wheels is secured to a pivoted frame 53 operated by a cam 55 on the shaft 39, the slot 36<a>, Fig. 1, having a swell to afford time for impression before the type-wheels are restored. The cam is ineffective unless, as described below, a lever 85, pivoted on the frame 53, is interposed between the cam and frame. The cheque is inserted manually, or fed, into a shoot 65 and is fed into printing position and discharged by means of feed-rollers 66, 90 respectively. The feed-roller shafts 74, 72 are geared to the shaft 39. The cheque, when moved up to the feedroller 66, rocks a lever 67 and thereby closes contacts 68 in the motor circuit. When fed forwards by the feed-roller 66, the cheque rocks a universally mounted lever 75, contacts 77 are closed thereby, and a solenoid is energized. A rod 81 connected to the solenoid abuts on a latch 82 normally restraining a spring-urged rod 83 which is connected to the lever 85 and is arranged to rock a bell-crank 86 abutting on the link 44. When the solenoid is energized, the clutch is engaged, the lever 85 is set above the cam 55, and impression is effected, the lever 75 preventing movement of the cheque. After impression, a dog 89, rocked by a cam on the shaft 39, releases the lever 75 from the cheque, and the cheque is fed towards the feed-roller 90 and is discharged thereby from the machine. The lever 85 is returned by means of a lever 94 abutting on the rod 83 and on a lever 92 operated by a cam 91. A starting- key, operated when listing without chequeprinting is required, releases a spring-urged lever connected to the bell-crank 52, but does not release the rod 83. The mechanism controlled by the cheque constitutes the subjectmatter of Specification 445,993. Key-locks.-The machine can be locked by means of a key-operated lock which is arranged to permit separation of the contacts on the units 1, 5 and to lock the starting-key.