Yarn treating device for open-end spinning frames

Details Yarn treating device for open-end spinning frames Yarn treating device for open-end spinning frames

1987-05-11

1987-12-15

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Open end spinning

57414, 57415, D01H 7882, D01H 1135

Patent

active

047123699

ABSTRACT:
An improved navel member positioned in the cover of the spinning rotor of an open-end spinning frame includes a barrel having a longitudinal passageway extending therethrough. The axis of the passageway is substantially coincident with the thread path as it exits the spinning rotor. A cylindrical insert is fixed in the barrel passageway and includes a longitudinal channel therethrough through which the thread actually passes. A plurality of spaced longitudinal grooves in the inside wall surrounding the longitudinal channel receive elongated ceramic rods partially embedded therein. The rods form a plurality of spaced obstructions around the periphery of the longitudinal channel. The periphery of yarn passing through the navel member intermittently engages and disengages the ceramic rods causing an improved roughening and bulking effect.

REFERENCES:
patent: 4011712 (1977-03-01), Egbers et al.
patent: 4258541 (1981-03-01), LeChatelier et al.
patent: 4385488 (1983-05-01), Raasch et al.
patent: 4499719 (1985-02-01), Faessler
patent: 4516397 (1985-05-01), Raasch et al.
patent: 4665687 (1987-05-01), Ott et al.

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