Patent GB-168913-A (GB)
Title: Improvements in and relating to addressing machines
IPC: B41L47/58
Filed: 1921-09-09
Abstract: 168,913. Gagneau, H. J. Sept. 10, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Addressing - machines. - Addressprinting plates 1B, Fig. 1, are mounted in sets of ten on thin metal carriers 1A having integral clips and stops 1C for securing the plates; the carriers are stored in drawers and are classified on a decimal system. The selected carrier is placed on a sliding carriage 2, Fig. 2, which can be moved automatically at each operation of an impression hammer 21 to bring the printing-plates successively to the printing position; or, any printing-plate can be brought to the printing position by the aid of key-operated stops. The carrier rests on springs 3 on the carriage and engages grooves 10 in the base A.. Spring plungers 7 and rocking stops 4 on the carriage engage the ends of the carrier, the stops being engaged by springs 6. The carriage is supported on the base A by balls 13, and is provided with racks 11 engaging pinions 14 on a shaft 15. The impression hammer is carried by a lever 20 which is pivoted on shafts 19 and is depressed and raised by a knob 24 and a spring 26 respectively. The hammer consists of a four-faced block which is adjustable by a Geneva device 21 and is mounted in a support having adjusting-screws 22. A pawl 17 carried by an arm 18 of the lever 20 engages a ratchetwheel 16 on the shaft 15 and, at each operation of the hammer, imparts to the carriage a feedmovement equal to the distance between two printing-plates. The pawl can be disabled, to permit of repeated impression from the same printing-plate, by rocking a lever 30 which is connected by rods 33 34 to the pawl. The initial and final position of the carriage, corresponding to the first and last printing-plate, are determined by the .engagement of stationary stops on the anvil 27 with stops 28 on a plate 12 secured to the carriage. The key-operated stop-device comprises a set of eight push-keys 35 connected to levers 37 operating sliding cams 39 in engagement with levers 40 carrying stop-pins adapted to enter grooves 12a and stop-holes 12<b> in the plate 12. Upon disabling the pawl 17, any printing-plate can be brought into position for single or repeated impression by pushing the carriage by means of a knob 70 into a position determined by the selected stops 28. The stop-pins depend from blocks having bevelled faces abutting on a stepped plate 42. The projected cam 39 is returned by depressing a key 43. A locking-lever 45 for preventing operation of the hammer is provided with pins 45<a>, 45<b> for engaging a notch in the arm 18 and holes 1D in the carrier respectively. Normally, the printing- plates prevent the pin 45b from entering the holes 1D but when any printing-plate is removed, the pin 45b can enter the corresponding hole and a spring 46 thereupon cocks the lever and causes the pin 45<a> to lock the hammer-lever 20. The lock is released by rocking a lever 47. An indicating- disc 48, geared by a perforated band to the shaft 15, is formed on the periphery numerals for indicating the printing-plate that is in position. An ink ribbon passes over the anvil.