Patent GB-143575-A (GB)
Title: Improvements in machines for cutting and printing tickets
IPC: B41K3/48
Filed: 1920-05-21
Abstract: 143,575. Berliner Spezialmaschinen-Inctustrie V. Sternburg. Sept. 5, 1913. [Convention date]. Platen machines; inking-apparatus.-A machine for printing on strips to form tickets, labels, &c. is constructed with a variable reciprocating paperfeed mechanism, platen printing mechanism actuated in conjunction therewith, a cutter actuated by the reciprocating head of the printing mechanism and arranged so that it may be adjust. able for cutting off tickets of different lengths. and an inking device which is actuated by the slide of the feed mechanism. As shown, the strip a is fed from a roll 41 over a roll 42, and is led above a slide 23 to a position over ai fixed platen 53, at the edge of which is arranged a cutting device 56, 58 for severing the strip into tickets after printing. The strip is fed forwards by being clamped to the slide 23, which is reciprocated in guides in the framing by a slotted oscillating lever 20 operated from a crank disk 17 by a connecting rod 19. The strip is clamped to the slide 23 as it moves towards the printing device by a rubber covered shoe 26 carried by a spring-pressed pin 25, and various means are described for allowing the shoe 26 to come into action at a time which can be adjusted so as to permit the length of feed to be varied. As shown in Fig. 1, the means comprise a cam lever 33 which acts on a stud 32 to keep the pin 25 raised so as to keep the shoe 26 out of action until an abutment 38 adjustably carried by a bar 36 acts on a projection, not shown, on the pivot 27 of a lever 30 which by a link 34 acts on the lever 33 to release the pin 32. The shoe 26 remains in action, and the strip is fed forwards until a fixed pin 35 acts on a projection and returns the lever 33 to the position shown, when the feed ceases to operate. As shown in Fig. 1, the movable cutter 58 is pressed by a spring 57 towards the lower cutter bar 56, and the cutter 58 is connected by a screw to a yoke 43 which carries a base 45 in which the printing-surface is mounted. As shown in Fig. 13, a cutting device is provided which can be adjusted relatively to the strip and the printing-surface for cutting off strips of different lengths. The lower cutter 56 is carried by a holder 92 adjustable in guidebars as 95, and held in adjusted position by setscrews. The upper cutter is pivoted to the lower, and is connected to the yoke 43 by a pin 59 which permits of the movement of the cutters for adjustment. The holder 92 carries a bar 96 which guides the paper, and a spring-depressed rod 55 attached to the yoke member holds the strip as the feed slide 23 returns. The yoke 43 is depressed to effect the printing operation by means of a pair of toggles 50, 51, and a link 49 actuated by a cam 47 in the crank disk 17. The link 50 is pivoted to a fixed cover 52, and a screw 54 is provided for giving an exact adjustment to the toggle mechanism to enable a sharp print to be obtained. The printing-surface is inked by rollers 62 which are mounted in a sliding frame 61 which is reciprocated in a direction at right-angles to the feed slide by means of a lever 72 and link 75, the lever 72 being oscillated by means of a cam groove 71 formed in the slide 23. A spring-pin 74 on the lever engages the cam groove which is shaped to move the rollers 62 across the forme and to return them prior to the descent of the forme. During the descent of the forme the pin 74 is engaged in a straight part of the cam groove 71, the part of this groove near the junction of it with the curved part being formed shallower than the curved part so that when the spring-pin 74 engages the deep part it is constrained to keep in the curved part of the cam as the slide reverses its motion. The rollers 62 receive their ink from a distributing disk 65 which is pressed in an upwardly direction by a screw, and is intermittently rotated from the frame 61, by means of a spring- controlled pivoted tongue 64, which engages pins 66 on the underside of the disk 65, and imparts a partial rotation to the disk for each reciprocation of the frame. The ink is supplied to the disk 65 from a box 68 which is fitted at the bottom with a soft roller which contacts with the disk, and is carried by a lever 70 which permits the box to be lifted and the supply of ink to be cut off.