Apparatus for beaming elastic threads

Textiles: manufacturing – Warp preparing or handling – With means responsive to sensed condition

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Details

28194, 28241, D02H 1314

Patent

active

045259054

ABSTRACT:
The arrangement can transfer with respect to a beam, elastic threads having a predetermined initial extension. The arrangement has a first device for imparting a first thread speed to the threads being transferred. Also included is a controller and at least one tension roller, the latter rotatably mounted between the beam and the first device. The roller can impart a second thread speed to the threads and can stretch them. The threads at the beam are transferred at a third thread speed. Among the first, second and third thread speeds the two furthest upstream have an adjustable speed ratio. The controller can measure the tension of the threads traveling to the tension roller. This controller is operable to alter the speed ratio in response to the tension of the threads, to hold this tension at a predetermined magnitude.

REFERENCES:
patent: 1797391 (1931-03-01), Abbott
patent: 2160910 (1939-06-01), Runton
patent: 2169886 (1939-08-01), Shaw
patent: 2534340 (1950-12-01), Chaya et al.
patent: 2956328 (1960-10-01), Faw
patent: 3015871 (1962-01-01), Noe
patent: 3045360 (1962-07-01), Alexeff et al.
patent: 3481011 (1969-12-01), Norton
patent: 4137614 (1979-02-01), Wolstencroft

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