Draft mechanism having roller pairs connected to draft ratio con

Details Draft mechanism having roller pairs connected to draft ratio con Draft mechanism having roller pairs connected to draft ratio con

1989-09-28

1991-06-11

Schroeder, Werner H.

Textiles: fiber preparation

Working

Drafting

19244, 19258, 19261, 19240, 19293, 19236, D01H 532, D01H 544, D01H 534

Patent

active

050221230

ABSTRACT:
A draft mechanism for use on a spinning machine includes a series of roller pairs each including a bottom roller and a top roller. The roller pairs are connected to output shafts of motors through the use of timing belts. The motors are electrically controlled according to the draft ratios. Roller gauge adjusting shafts are meshed with bearing portions of the top and bottom rollers. '

REFERENCES:
patent: 2812553 (1957-11-01), Coulliette
patent: 3105998 (1963-10-01), Raboisson
patent: 3778995 (1973-12-01), Sanders
patent: 4512061 (1985-04-01), Hartmannsgruber
patent: 4589168 (1986-05-01), Kreiger
patent: 4703431 (1987-10-01), Sako
patent: 4727626 (1988-03-01), Vinas
patent: 4819301 (1989-04-01), Konig

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