Constant tension let-off motion for warp threads in a loom

Details Constant tension let-off motion for warp threads in a loom Constant tension let-off motion for warp threads in a loom

1983-10-06

1984-07-10

Jaudon, Henry

Textiles: weaving

Warp manipulation

Feeding

D03D 4906

Patent

active

044587287

ABSTRACT:
Let-off motion for elongated material wound on a let-off beam. Such let-off motion comprises a tension detector connected to the input of a let-off element, the output of which is connected with the control element of the driven let-off unit, with the input shaft of the drive and output shaft of the let-off drive, which responds to changes of the control magnitude value in its control element by a change of the relation of angular velocities between the input and output shafts. The input of the let-off element is a rotary disc slidably arranged between two axially arranged clutch discs of the let-off element, the clutch discs being mutually positively rotatable in opposite directions. The clutch discs of the let-off element are drive-coupled with the input shaft of the driven let-off unit, and the disc of the let-off element is provided with a central, internally threaded hole which receives and is threadedly mated with the threads on the spindle of the let-off element. The spindle is mounted slidably but non-rotatably in the body of the let-off element, and creates the output of the let-off motion let-off element.

REFERENCES:
patent: 3630239 (1971-12-01), Hooper
patent: 4058143 (1977-11-01), Henzl et al.
patent: 4402347 (1983-09-01), Rotrekl et al.
patent: 4411293 (1983-10-01), Santucci

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