Friction rotor for the false-twisting of synthetic threads

Details Friction rotor for the false-twisting of synthetic threads Friction rotor for the false-twisting of synthetic threads

1985-11-08

1986-08-26

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

False twist device

57334, 57339, D02G 108, D02G 104

Patent

active

046074848

ABSTRACT:
The friction ring of a rotor or disk for a friction false-twisting device for synthetic threads is disposed on the circumference of the respective rotor. The friction ring is comprised of elastic material and is capable of lifting off the rotor upon high rotor rotation speed. To prevent lift-off, at least one annular element is disposed to the ring. In one embodiment, the annular element is rigid and is disposed in a groove around the periphery of the ring. In another embodiment, rigid annular elements are disposed in respective grooves in one or both side faces of the ring. In still another embodiment, the annular element is disposed inside the ring and may even comprise an initially tensioned spring, rather than a rigid annular element.

REFERENCES:
patent: 3901011 (1975-08-01), Schuster
patent: 3940914 (1976-03-01), Schuster
patent: 4050229 (1977-09-01), Hayahusa et al.
patent: 4051655 (1977-10-01), Lorenz et al.
patent: 4129980 (1978-12-01), Dillon
patent: 4195470 (1980-04-01), Sturhahn
patent: 4297837 (1981-11-01), Baver et al.
patent: 4489546 (1984-12-01), Schuster et al.

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