Textiles: weaving – Weft manipulation – Weaving with stationary weft supply
Patent
1975-04-03
1976-08-31
Jaudon, Henry S.
Textiles: weaving
Weft manipulation
Weaving with stationary weft supply
D03D 4730
Patent
active
039774422
ABSTRACT:
A device for controlling the fluid pressure to be imparted to a jet stream of fluid to entrain a weft yarn to be picked into the shed of warp yarns in a weft inserting arrangement of a shuttleless weaving loom, comprising flow restriction means and pressure accumulating means provided intermediate a source of fluid under pressure and a fluid discharge nozzle from which the jet stream of fluid is to be shot. The flow restriction means and the pressure accumulating means are arranged in such a manner that the supplied fluid pressure is accumulated to a certain quantity during a period intervening between consecutive two picking cycles and supplied during each picking cycle to the nozzle at a rate which is gradually decreased towards the end of the picking cycle so that the weft yarn is picked at a velocity that gradually diminishes as the pick of the yarn shot from one end of the shed approaches the other end of the shed.
REFERENCES:
patent: 2668560 (1954-02-01), Svaty
patent: 3114396 (1963-12-01), Bardsley et al.
patent: 3828829 (1974-08-01), Gotoh
Kasai Seiji
Shibata Kazuo
Adams Bruce L.
Burns Robert E.
Jaudon Henry S.
Lobato Emmanuel J.
Nissan Motor Co,. Ltd.
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