Joseph P Majette

US Patent:

45313539, Jul 30, 1985

Filed:

Oct 5, 1983

Appl. No.:

6/539096

Inventors:

Joseph P. Majette - Charlotte NC

International Classification:

D01H 124
D01H 134

US Classification:

57 94

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.