Open-end spinning unit with a spinning rotor

Details Open-end spinning unit with a spinning rotor Open-end spinning unit with a spinning rotor

1974-10-22

1976-04-27

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Unitary multiple twist devices

57 5895, D01H 112

Patent

active

039524949

ABSTRACT:
Open-end spinning unit with a spinning rotor having a lower side and an upper side. A lid is inserted into a front opening provided in said lower side, said lid being bored so as to form a fiber supply duct to convey separated fibers into the interior of said spinning rotor. A yarn take-off duct extends through said upper side of the spinning rotor and conveys the yarn via an outlet port out of the interior of the spinning rotor. A separator is secured to said lid and is designed to divide the rotor interior into a fiber supply zone and a yarn producing and take-off zone. The front surface of said separator which faces said yarn take-off duct constitutes a directing wall for directing the yarn end being returned to be spun-in, the circumferential edge of said directing wall being located in a space defined by a pair of planes perpendicular to the spinning rotor axis, one of said planes passing through the maximum yarn producing and take-off zone diameter and the other plane being spaced 6 mm therefrom in the direction toward the yarn take-off duct.

REFERENCES:
patent: 3339359 (1967-09-01), Ripka et al.
patent: 3357168 (1967-12-01), Zlevor et al.
patent: 3360917 (1968-01-01), Kubovy et al.
patent: 3557542 (1971-01-01), Oskin et al.
patent: 3620002 (1971-11-01), Grishin
patent: 3698175 (1972-10-01), Dykast
patent: 3798886 (1974-03-01), Rajnoha et al.

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