Open end spinning device

Details Open end spinning device Open end spinning device

1994-10-21

1995-12-19

Hail, III, Joseph J.

Textiles: spinning, twisting, and twining

Apparatus and processes

Open end spinning

D01H 440

Patent

active

054759749

ABSTRACT:
At least one circular ridge, which projects upwardly beyond the surface of the navel of the thread delivery device, is placed in the path of yarn being removed from the peripheral wall of the spinning chamber and delivered to the throat of the navel. The ridge has a height of at least. 003" and is radially so located in proximity to the edge of the navel that the yarn being formed and lifted from the wall of the spinning chamber first engages the navel at the ridge. The result of the engagement of the yarn with the ridge is that the twist is reduced and a higher break strength is achieved with a reduction in imperfections.

REFERENCES:
patent: 3336742 (1967-08-01), Stary et al.
patent: 3481128 (1969-12-01), Landwehrkamp et al.
patent: 3640061 (1972-02-01), Landwehrkamp
patent: 3651632 (1972-03-01), Shepherd
patent: 3789597 (1974-02-01), Schon
patent: 3875731 (1975-04-01), Khomyakov et al.
patent: 3965661 (1976-06-01), Yoshida
patent: 4712369 (1987-12-01), Vernon

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