Method of and apparatus for spinning yarn from staple fibers in

Details Method of and apparatus for spinning yarn from staple fibers in Method of and apparatus for spinning yarn from staple fibers in

1983-12-14

1985-11-19

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Open end spinning

D01H 113, D01H 7898

Patent

active

045533830

ABSTRACT:
Method of and apparatus for spinning yarns from staple fibers in an air vortex in a stationary spinning tube axially coupled by one of its ends to a stationary air chamber, and by its other end to a sub-atmospheric pressure source. A flow of discrete fibers is supplied into the air chamber onto the wall of an air vortex which entrains, doubles and densifies the fibers before they are taken onto an open end of yarn which is given an additional twist while being withdrawn in the region between the air chamber and a take-off device. A fiber supply duct which opens into the air chamber is oriented toward the wall of the air vortex, an additional twisting device being provided between said twisting device and said air chamber.

REFERENCES:
patent: 3577720 (1971-05-01), Zax et al.
patent: 3994120 (1976-11-01), Random et al.
patent: 4077197 (1978-03-01), Bowden et al.
patent: 4174605 (1979-11-01), Pallay

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