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    • 8. 发明专利
    • Improvements in or relating to Weft Replenishing Mechanism for Looms for Weaving.
    • GB191121799A
    • 1912-10-03
    • GB191121799D
    • 1911-10-03
    • PILKINGTON WILLIAM WINDLEWHITTAKER JOHNBRADSHAW RICHARDBRIGGS JOSEPH
    • PILKINGTON WILLIAM WINDLEWHITTAKER JOHNBRADSHAW RICHARDBRIGGS JOSEPH
    • D03D45/20
    • 21,799. Pilkington, W. W., Whittaker, J., Bradshaw, R., and Briggs, J. Oct. 3. Shuttles, changing bobbins and the like in, automatically.-The loose weft ends from the cops 22, Figs. 1 and 3, which may be inserted in the chain magazine described in Specification 4800/11, are supported and kept separate from one another by being passed between pins 8 on an endless chain 7 on pulleys on shafts 3, 4, the shaft 4 being rotated step by step by ratchet-mechanism each time transference occurs. The weft ends are held between pulleys 12, 13, the pulley 12 being carried on the shaft 4, so that the weft ends are drawn by the pulleys each time cop-transference occurs and are held taut as they descend, the weft end of the cop to be transferred being guided by the chain 7, so as, to be approximately level with the top of the shuttle. The drums 12, 13 may be replaced by a single drum covered with cloth, the weft threads being passed round it or round a portion of it. To allow a weft end to yield if necessary at the time of transference, the pulley 13 may be carried bv a weighted spring-controlled lever 14. In addition to or instead of this device, a band 21 of loosely woven flannel or other elastic material carried by pulleys 18, 19 may be arranged to deflect the weft ends, this band being moved to the right, if the weft end is subjected to a sudden pull. A sheet-metal guard 17 prevents the weft threads from catching in the pins in the ascending flight of the chain 7, whilst a bent rod 23 guides the weft threads to the drums 12, 13. Instead of the chain 7, a band composed of wire brush or fibrous material may be employed.