Loom

Details Loom Loom

1985-02-14

1988-07-26

Hornsby, Harvey C.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

139 1R, 139 1E, 139349, 1393702, 139435, 242 4701, D03D 4734, D03D 4730, D03D 5100, D03D 5108

Patent

active

047593938

ABSTRACT:
A loom having a drum type weft reservoir including a drum on which a predetermined length of a weft yarn is wound to be measured and reserved prior to weft picking. The weft reservoir is automatically prepared for loom starting by merely operating a manual switch. The local includes a clutch which is engaged at a predetermined operational phase of the loom to drive the weft reservoir. If the manual switch is actuated when the clutch is disengaged, then the clutch is engaged at a second time substantially later than the first time at which the predetermined operational phase is reached. Any cut, broken or unnecessary weft yarn remaining wound on the drum when the switch is actuated is removed during the interval between the first and second times, e.g. by pulling the weft yarn from the side of a weft inserting nozzle. The weft yarn is pulled from the weft inserting nozzle side by a device such as a picked weft yarn removing device adapted to pull the weft yarn wound on the weft reservoir drum in the direction of the weft inserting nozzle. When the second time comes, the weft reservoir is driven and a new weft yarn is wound on the weft reservoir drum for use as the weft yarn when the loom starts. The loom thus is prepared for starting merely by actuating the manual switch, regardless of the number of turns of weft yarn wound on the drum before the switch is actuated.

REFERENCES:
patent: 4448223 (1984-05-01), Deborde et al.
patent: 4458725 (1984-07-01), Schwarz
patent: 4465110 (1984-08-01), Dekker
patent: 4503889 (1985-03-01), Van Mullekom
patent: 4538650 (1985-09-01), Kodama et al.
patent: 4566566 (1986-01-01), Vuillet

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