Patent GB-390804-A (GB)
Title: Improvements relating to manifolding
IPC: B41L11/00
Filed: 1931-08-05
Abstract: 390,804. Printing-machines. RITZERFELD, W., 107, L³tzowstrasse, Berlin. Aug. 5, 1931, No. 22172. [Class 100 (ii).] Copying documents ; printing - surfaces ; tripping-arrangements.-In an apparatus for line manifolding of book-keeping entries &c., of the kind wherein the original bearing mirror script on the reverse side is mounted face downward on a cylinder 1 with the lines extending circumferentially, and a card &c. is fed past one or more moisteners 16 of line breadth and pressed against the cylinder by one or more rollers 2, of line breadth, the card is not secured to the rollers 2 which are of less diameter than the cylinder. Upon depression of a starting rod 72 a positioning device 9, having a projection 12 engaging the appropriate incision in the card, is moved left by a lever 74 and feeds the card to feed rollers 8. Simultaneously rods 52, 83 are moved left and respectively depress the appropriate moistener and withdraw a stop bolt 70 from the cylinder. Rod 83 also releases a pawl, carried by the cylinder, to engage a continuously rotating ratchet wheel freely mounted on the cylinder shaft 6, which then rotates the cylinder. After one revolution, a cam on the cylinder trips a stop 80 and rods 52, 83 return to their original position, respectively raising the moistener and tripping the pawl to stop the cylinder. Each moistener 16, Fig. 2, is lowered to a " ready " position by rotation of a lever 40, freely mounted on a shaft 39, when said lever is released by rotation of a lever 45 effected by depression of a plate 44 actuated by a pawl 48. The latter is moved to engage successive plates 44 at each revolution of the cylinder by a cam 86 thereon which actuates pawl and ratchet mechanism 88 to rotate a shaft 46 having a helical groove engaged by a stud 471 on a member 47 carrying the pawl 48. The moistener is moved into contact with the card by the rod 52 which engages cams 51 on and rotates the shaft 39. Downward movement of the plate 44 also rotates a lever 58 and releases a pressure roller 2. The shaft 46 may be rotated by hand to release several moisteners at once, and is connected by a chain 84 to spindles 15, 66 whereby the positioning device 9 and a copy of the original on the spindle 66 are moved across the machine in unison. The copy 66 indicates the line about to be printed. The position of each moistener is adjustable by cams 57. The felts 17 are supplied with moisture by wicks 8 in contact with saturated material 20 in a container 19. The cylinder may be locked against rotation by a pawl engaging any driving wheel of the machine and tripped by the card when it is placed in the operative position on the table 7. Various cams on the cylinder 1 are carried on a pivoted arm and can be moved out of operative position. In a modified apparatus a single moistener and pressure roller are employed and are moved across the machine to register with the line to be printed by a ratchet and pawl mechanism operated from the cylinder. The latter also carries a cam which trips a bell-crank lever to raise the moistener. The feed rollers 8 begin to rotate immediately after the moisteners are lowered. Inking-apparatus.-A device, Fig. 10, for marking the original as each line is printed comprises a type member 158 carried by an arm 150 operated from a star member 154 on the cylinder 1 through a bell crank 151. An inking-pad 150 is simultaneously moved out of the path of the type by a link 161. The device is returned by a spring 148.