Weft yarn store for looms having a braking device

Details Weft yarn store for looms having a braking device Weft yarn store for looms having a braking device

1987-05-08

1988-11-22

Jaudon, Henry S.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

242 4701, 242149, D03D 4736

Patent

active

047858559

ABSTRACT:
A weft yarn store for looms has a stationary drum (10) for storing a weft yarn supply (23) and a braking device (13) at the end of the drum. A resiliently deformable brake element (132) is movable by means of an adjusting device (131) relatively to a braking surface of the drum. The adjusting device may be an annular electromagnet 131 and is in direct operative engagement with low-inertia parts of the brake element 132. Such parts can be finger-like lamellae disposed one beside another on the outer drum periphery (10). The action of the braking device can therefore be accurately adjusted to the departing weft yarn so that the same is retarded gently at the end of picking into a loom.

REFERENCES:
patent: 4079759 (1978-03-01), Riha et al.
patent: 4261526 (1981-04-01), Roj
patent: 4541462 (1985-09-01), Tholander
patent: 4574847 (1986-03-01), Matsumoto

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