Freed-fiber spinning devices

Details Freed-fiber spinning devices Freed-fiber spinning devices

1977-10-05

1979-09-04

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Unitary multiple twist devices

D01H 112

Patent

active

041663543

ABSTRACT:
The device comprises a rotating vacuum chamber and a stationary central tubular yarn-exit component. The component is provided with a first convex annular surface of revolution constituting a bearing plate for the yarn which is being formed and a second surface of revolution constituting a yarn guide tube. The surfaces are joined together by a convex junction surface of revolution and a plurality of air-displacement cavities are provided in the first surface.

REFERENCES:
patent: 3481128 (1969-12-01), Landwehrkamp et al.
patent: 3640061 (1972-02-01), Landwehrkamp
patent: 3778989 (1973-12-01), Schon
patent: 3789597 (1974-02-01), Schon
patent: 3805505 (1974-04-01), Schuster
patent: 3834147 (1974-09-01), Havranek et al.
patent: 3844100 (1974-10-01), Croasdale et al.
patent: 3924398 (1975-12-01), Esser et al.
patent: 3952494 (1976-04-01), Junek et al.
patent: 3965661 (1976-06-01), Yoshida

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