Textiles: spinning – twisting – and twining – Apparatus and processes – False twist device
Patent
1981-06-12
1983-06-14
Petrakes, John
Textiles: spinning, twisting, and twining
Apparatus and processes
False twist device
57339, 57348, D02G 108
Patent
active
043875572
ABSTRACT:
A yarn false twisting apparatus and method is provided which permits ready conversion from S to Z twist, or vice versa. The apparatus comprises a pair of friction discs which are rotatably mounted on a common carrier plate, and the carrier plate is pivotally mounted to the frame of the apparatus such that the discs may be selectively rotated between first and second operative positions disposed 180 degrees from each other. The discs are rotated in a common rotational direction in each operative position, and the yarn is advanced through a twisting zone between the discs in a direction parallel to a line extending perpendicularly between the axes of rotation of the discs. Thus conversion from S to Z twist, or vice versa, may be effected by pivoting the carrier plate between the two operative positions, without changing the direction of rotation of the discs or the yarn path of travel.
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Barmag Barmer Maschinenfabrik AG
Petrakes John
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