Drive mechanisms of spinning or twisting machines adapted for th

Details Drive mechanisms of spinning or twisting machines adapted for th Drive mechanisms of spinning or twisting machines adapted for th

1977-01-21

1978-02-14

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Web material

57 34R, 19237, D01H 536

Patent

active

040731251

ABSTRACT:
A spinning or twisting machine is adapted for the formation of knop yarn by a drive mechanism for the lower yarn feed rollers of the draw frame, which includes a unidirectional clutch allowing the lower feed rollers to run at a higher speed than that imparted by the drive transmission of the machine, and a further unidirectional clutch by means of which an actuator, which may be pneumatic or electric, acts periodically upon the lower feed rollers to increase the speed of the latter for preselected times and intervals to cause the formation of knops in the yarn.

REFERENCES:
patent: 2810165 (1957-10-01), Dunn et al.
patent: 2811011 (1957-10-01), McCallough
patent: 3407589 (1968-10-01), Hasegawa
patent: 3449899 (1969-06-01), Cureton et al.

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