Method and apparatus for spinning yarn under constant tension

Details Method and apparatus for spinning yarn under constant tension Method and apparatus for spinning yarn under constant tension

1983-10-05

1985-07-30

Levy, Stuart S.

Textiles: spinning, twisting, and twining

Apparatus and processes

Driving

57 95, 57 98, 57102, 57264, D01H 124, D01H 134

Patent

active

045313539

ABSTRACT:
A spinning frame 10 is disclosed for processing a strand at a varying strand movement speed to produce a strand processed with uniform tension. The spinning frame includes a motor 21 and a planetary gear box 30 which operates as a differential having first and second speed input elements formed by the rotation of the gear box housing 31 and a variable speed shaft 36. Housing 31 rotates at a constant speed and shaft 36 at a variable speed determined by the speed of rotation of a motor 50 which is controlled by an input to a variable capacity pump 45. A computer 70 operates through a servo-valve 60 to vary the speed of cylinder 18 to produce a speed required to maintain uniform tension on the strand.

REFERENCES:
patent: 1189045 (1916-06-01), Boles
patent: 2326220 (1943-08-01), Henning et al.
patent: 3788606 (1974-01-01), Solter
patent: 3926072 (1975-12-01), Richardson

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