Patent GB-398183-A (GB)
Title: Jacquard card punching machine
IPC: D03C17/00
Filed: 1932-03-03
Abstract: 398,183. Punching jacquard cards. KOCH, L., (trading as KOCH & TE KOCK), 1, Forststrasse, Oelsnitz, Vogtland, Germany. March 3, 1932, No. 6417.' Convention date, Aug. 12, 1931. [Class 142 (i).] Relates to means for punching cards for jacquards for controlling the weft supply in looms for weaving chenille fabrics &c. wherein card saving motions such as described in Specification 342,525 are used, each card, in addition to colour determining perforations, being punched with shot counting perforations controlling the number of times this card is repeated in the machine. According to the invention, the card band to be punched is fed forwardly intermittently one step at a time through the punching machine, but the paper strip pegging plan 13, Figs. 1 and 12, viewed through one of two windows 93, shown in plan in Fig. 12, provided with observation marks comprising graduated scales is, after a punching operation, fed forwards at once a distance corresponding to the number of times the colour is observed to be repeated. When the direction of traverse of the pegging plan 13 is reversed, a different observation mark is utilized, by moving the left-hand window to an angular position and bringing the right-hand window into position directly in front of the pegging plan. Means are described whereby each time the pegging plan is reversed stampings may be marked on the card band. This is fed from a roller 3 to a roller 4 through the punching machine and past the stamper 9, by mechanism actuated from the main drive 39, which is constructed as a one revolution coupling. The pegging plan 13 is laid on an endless steel band adjustable in tension arranged on transport drums 11, 12, the drum 11 being driven forwards or reversely as required by one or the other of two intergeared pinions on a rocking reversing lever 29. One of these intergeared pinions is driven from a pinion 25, Fig. 3, actuated by a toothed rod on an arm 23 on a sleeve 20, which is moved in one direction by a cam-controlled lever 18, the toothed rod being however at this time disengaged from the pinion 25 by means described. Whilst the toothed rod is engaged with the pinion, a spring 22 moves the sleeve to an extent varied by the interposition of one of several stops operated from separate repeat number keys 14, each of which operates the associated needle of the punching machine that punches the corresponding shot counting perforations. Each key 14 also throws into gear, for example by means of electrical contacts, the one revolution coupling of the main drive. If a part of the card band should run through the machine without being perforated, a hand-lever 47 is actuated controlling a key 64 actuating a stop whereby movement of the toothed rod and feed drum is prevented. A spring-controlled locking bolt 51 actuated from a cam controlled lever locks the pinion 25 after each forward step. The operator actuates one of the colour keys 40, which control needles 41 for punching the required colour perforations, and then he operates one of the number keys 14. The windows 93 are adjustable in a manner described.