Patent GB-235340-A (GB)
Title: Improvements in combined ruling and printing machines
IPC: B41G3/00
Filed: 1924-04-05
Abstract: 235,340. B÷ttcher, R., and M³ller, M. April 5, 1924. Ruling-machines.-A machine for ruling sheets and printing headings thereon comprises in combination a ruling-cylinder 2, Fig. 1, an impression cylinder 7, and a reciprocating bed 24 arranged collectively in a frame and geared together, means being provided for conveying sheets to and from the impression cylinder. Two sets of cords 42 carrying the sheets over the ruling-cylinder 2 and a guide roller 43 to the impression cylinder 7, where the sheets are delivered to grippers 44 on the cylinder. One set of cords passes upwardly over a roller 47 and the other set of cords passes downwards over a roller 48 to co-operate with a third set of cords 42a to take the sheets from the cylinder 7 after they have been printed and deliver them from the machine, guide rollers 50, 51, 52 being provided for the. cords. Bed - reciprocating apparatus. - The bed 24. Fig. 1, of the printing-machine is reciprocated beneath the impression cylinder 7 and inking- apparatus 41 by means of two toothed sectors 21, Figs. 4 and 7, engaging racks 25 on the bed 24 and oscillated by intermediate mechanism from the ruling-cylinder 2. The sectors 21 are keyed to the same shaft 20 as a member 18 carrying two toothed sectors 16, 17 and also two slotted lugs 19. The sectors 16, 17 engage respectively with sectors 14, 15 on a shaft 11 and rotated in opposite directions, so as to oscillate the member 18 and therefore the bed 24. To bring the sectors 16, 17 and 14, 15 into and out of engagement without shock, rollers 13 situated near the ends of the sectors 14, 15 engage the slots in the lugs 19 before the beginning of and at the termination of the engagement of the sectors. The sectors 14, 15 are fixed to gear wheels 9, 12 respectively, the gear wheel 12 being fixed on the shaft 11 and meshing with a gear wheel 8 attached to a gear wheel 5 meshing with a gear wheel 4 on the shaft of the ruling-cylinder, and the gear wheel 9 being loose on the shaft 11 and driven from the gear wheel 8 through an intermediate gear 10. The rollers 13 are attached to the gear wheels 9, 12. Cylinder machines. - The impression cylinder 7. Fig. 1, has attached to its end a gear-wheel 6 meshing with the gear-wheel 5 by which it is driven from the ruling-cylinder, and its bearing blocks 27 are slidably supported in the machine frame bv springs 28. The cylinder 7 is lifted during the non-printing movement of the bed 24 by a rod 29 having one end attached to a bearing block 27 and the other end to an ercentric on an oscillating shaft 30. The shaft 30 is oscillated by means of links 31 31<a> and a cam 35 on the shaft 11 the link 31a being pivoted at 32 and kept in engagement with the cam 35 by a spring 34. The gear-wheel 5 is adjustable relatively to the gear-wheel 8 driving the reciprocating bed, so as to adjust the cylinder relatively to the bed. Throw-out arrangements.-For throwing the printing machine out of gear, the pivot 32, Fig. 1, of the link 31a is mounted eccentrically in a disc 36 so as to be moved relatively to the cam 35 when the disc is turned by its handle 46. This movement of the pivot 32 causes the blocks 27 to be given a permanent lift above the bed so that the cylinder and bed do not contact during the reciprocation of the bed.