Apparatus for making a yarn

Details Apparatus for making a yarn Apparatus for making a yarn

1985-06-25

1986-03-11

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Covering or wrapping

57331, 57334, 57401, 57409, 57410, D01H 1135, D01H 7885, D01H 528, D02G 336

Patent

active

045745722

ABSTRACT:
Apparatus for making a yarn comprises a device which succeeds a drawing frame and serves to twist a drawn roving and to wind covering fibers around the drawn roving, and means for supplying the covering fibers. In order to ensure that the covering fibers can be uniformly wound around the roving in a structurally simple apparatus, two spaced apart, coaxial twisting members are provided as well as a ring, which is disposed between and coaxial to the twisting members and serves to supply the covering fibers. Air is sucked from a portion of the periphery of the ring, which can be driven to rotate in the same sense as the twisting members but at a different surface speed. The line of yarn formation extends on the receiving twisting member and the ring to the delivering twisting member along a helix, which has a hand in the sense of rotation of the twisting members.

REFERENCES:
patent: 4107909 (1978-08-01), Fehrer et al.
patent: 4112658 (1978-09-01), Morihashi
patent: 4168601 (1979-09-01), Didek et al.
patent: 4183202 (1980-01-01), Morihashi
patent: 4222222 (1980-09-01), Didek et al.
patent: 4241571 (1980-12-01), Turk et al.
patent: 4249368 (1981-02-01), Fehrer
patent: 4281507 (1981-08-01), Didek et al.
patent: 4322944 (1982-04-01), Sraitr et al.
patent: 4327545 (1982-05-01), Fehrer
patent: 4524580 (1985-06-01), Fehrer

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