Thread drawoff tube for open-end spinning machines

Details Thread drawoff tube for open-end spinning machines Thread drawoff tube for open-end spinning machines

1975-09-05

1977-03-15

Queisser, Richard C.

Textiles: spinning, twisting, and twining

Apparatus and processes

Unitary multiple twist devices

D01H 112

Patent

active

040117120

ABSTRACT:
Transmission of the thread twist-forming force to the thread end is facilitated by a finger mounted eccentrically in the bore of the thread drawoff tube. The thread, which is rotated about the circumference of the bore, periodically engages the finger, which finger plucks the thread away from the tube wall and momentarily relieves the bearing force between the thread and the drawoff tube at the tube infeed end. The finger is spaced inwardly from the tube infeed end and may be a pin projecting radially inward from the tube wall or an offset wire extending parallel to but eccentrically of the tube axis.

REFERENCES:
patent: 3640061 (1972-02-01), Landwehrkamp
patent: 3834147 (1974-09-01), Havranek et al.

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