Roving or sliver clamping device for a drafting frame or a spinn

Details Roving or sliver clamping device for a drafting frame or a spinn Roving or sliver clamping device for a drafting frame or a spinn

1987-02-27

1988-03-01

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Stopping or starting

19 025, 57 81, 57 87, D01H 1318, D01H 1314

Patent

active

047277130

ABSTRACT:
Roving or sliver clamping device at the drafting unit of a spinning machine, with a clamp segment which enters in the operative position between the upper inlet roller and the lower inlet roller of the drafting unit, and which clamp segment raises the upper inlet roller from the lower inlet roller, and clamps the roving or sliver against the upper inlet roller, whereby the clamp segment is acted upon by an actuating element which causes its roving or sliver-clamping position, and the clamp segment is maintained in the position in which the roving or sliver clamping device is at rest by a holding element. The holding element includes means for storing energy and it positively counteracts the actuating element.

REFERENCES:
patent: 3517497 (1970-06-01), Rettenmund
patent: 4501114 (1985-02-01), von Ronai-Horvath et al.
patent: 4519199 (1985-05-01), Barauke
patent: 4630434 (1986-12-01), Hartmannsgruber et al.

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