Patent GB-146140-A (GB)
Title: Improvements in machine for punching jacquard cards for embroidering machines
IPC: D05C13/00
Filed: 1920-06-23
Abstract: 146,140. Wyler, L., and Rieser (nee Beutter), A. H., (Representative of Rieser, J. G.). June 23, 1919, [Convention date]. Cards, punching.-In a machine for punching jacquard cards for embroidery-machines and of the type wherein the punches 54, Figs. 1 and 2, are controlled by feeler pins 50 operated from a main determining-member and by feeler pins 93 operated from an auxiliary determining-member which operates to indicate movement of the former member beyond, its zero position, the first member, comprising a perforated cylinder 40, continuously drives the second member, comprising a perforated segment 46, Fig. 3, by means of a driving-pin 43 engaging an axially-movable worm 44 gearing with a worm-wheel 79, which is spring-pressed so that one of a series of holes therein engages a pin 91 in a lever 84 connected by lever mechanism 85, 86, 89 to the segment 46. The worm is also moved axially by lever mechanism 74, 75, 76 controlled by a feeler pin 73, which is moved downwards by a spring, prior to each operation of the punches, into engagement with a groove 72 of varying depth at the end of the cylinder, so that the segment is moved to a central position prior to each punching operation irrespective of the amount of movement of the cylinder 40, unless this cylinder moves past its zero position. If this happens, the segment is moved away from its central position by a multiple of the exact distance between its rows of holes, so that an incomplete row of holes comes into position beneath the feeler pins 93, whereby the jacquard cards are punched to indicate the direction of motion when passing through zero, and also the number of times zero is passed. Thus the correct stitch is given in the embroidery machine. The lever 84 is returned to normal zero position after each punching operation by a cam-controlled lever 94, the worm-wheel moving out of gear with the pin 91 on the lever 84 if necessary. There are two cylinders 40 which are respectively operated according to the vertical and horizontal components of the stitch to be copied, and there is a segment 46 for each cylinder. The punches 54, arranged in a reciprocating punch-box 56, 60 through which the chain of cards 58 passes, are controlled by locking-rods 51 on the feeler pins 50, 93, which are moved positively away from the cylinders &c. at the required times and are moved by springs towards the cylinders &c. The cards 58 are advanced by rollers 110, 111, the roller 110 having driving-ribs engaging in holes punched in the cards by punches controlled by locking-rods 117 actuated, at every second step of the movement of the roller 110, by cam-controlled levermechanism. The punching-machine is driven through a spring-controlled clutch and is stopped automatically in a definite position after each complete rotation of its main shaft corresponding to one complete operation of the punches. Camcontrolled bell-crank levers 25 have bevelled teeth to engage ratchet-wheels on the sleeves carrying the cylinders 40 and lock these in position wherein a row of perforations is exactly positioned beneath the feeler pins 50. Feeler pins 125 controlled by a plate 127 control the punches for making the holes in the pattern chain that determine " special " accessory functions in the embroidery-machine.