Control means for controlling the warp let-off of a weaving mach

Details Control means for controlling the warp let-off of a weaving mach Control means for controlling the warp let-off of a weaving mach

1977-09-26

1978-10-31

Jaudon, Henry S.

Textiles: weaving

Warp manipulation

Feeding

66211, D03D 4910

Patent

active

041228731

ABSTRACT:
The pulse transmitter is synchronized with the weaving cycle of the machine drive and carries at least one sensing surface of variable shape. A detector is secured to the tension beam and is responsive to changes in warp tension. The detector carries a sensing element in the form of a proximity switch which is disposed over the sensing surface of the pulse transmitter. Depending upon the position of the proximity switch relative to the sensing surface, a pulse is emitted to the warp beam drive for stepping of the warp beam as the pulse transmitter rotates past the sensing element. This pulse is variable in the time-of-occurrence as well as in duration.

REFERENCES:
patent: 2430639 (1947-11-01), Jacques
patent: 2450488 (1948-10-01), Schedin
patent: 3072154 (1963-01-01), Locher
patent: 3878872 (1975-04-01), Hintsch

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