Spinning or twisting device with a pipe shaped element capable o

Details Spinning or twisting device with a pipe shaped element capable o Spinning or twisting device with a pipe shaped element capable o

1991-10-18

1993-03-16

Stodola, Daniel P.

Textiles: spinning, twisting, and twining

Apparatus and processes

Piecing up

57301, 57305, 57353, 57400, 57405, 57417, D01H 400, D01H 450

Patent

active

051933322

ABSTRACT:
A spinning or twisting device in which a yarn is to be back-fed into the bore of a pipe-shaped element subjected to negative pressure in order to repair a yarn break. This pipe-shaped element is made in form of a yarn draw-off pipe of an open-end spinning device or as part of a pneumatic twisting device.
A presenting device is moved over and beyond the pipe-shaped element into a yarn inserting position. The end of the pipe-shaped element towards the moving path of the presenting device is provided with a nozzle which is provided, in relation to the bore, on its side towards the yarn inserting position of the presenting device with a yarn support, and on its side away from the yarn inserting position with a yarn insertion groove, oriented in the direction of movement of the presenting device. The bottom of the yarn insertion groove is at a greater distance from the moving path of the presenting device than the yarn support.

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patent: 4891933 (1990-01-01), Raaschl

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