Method and apparatus for manufacture of yarn

Details Method and apparatus for manufacture of yarn Method and apparatus for manufacture of yarn

1977-03-03

1978-02-14

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Unitary multiple twist devices

57160, D01H 112

Patent

active

040731294

ABSTRACT:
In manufacturing yarn inside a cylindrical, non-rotational chamber, air jets cause rotational motion to the fibers introduced into the chamber. The whirl core vacuum suction zone, i.e. on the cylindrical insert lower face and/or in the chamber outlet, where the whirl core intensification takes place, the rotating velocity of the air stream whirled into the chamber interior becomes inhibited by reducing the rotating velocity within the whirl core. The chamber is provided with peripheral ducts to supply air and also a fiber delivering channel. A cylindrical insert has a lower face that has attached thereto, restricting blades 9 arranged in the chamber outlet from the vacuum source side.

REFERENCES:
patent: 3577720 (1971-05-01), Zak et al.
patent: 3851455 (1974-12-01), Jozwicki et al.
patent: 3898787 (1975-08-01), Wehling et al.
patent: 3994120 (1976-11-01), Radom et al.

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