Textiles: spinning – twisting – and twining – Apparatus and processes – Covering or wrapping
Patent
1984-08-23
1986-03-04
Petrakes, John
Textiles: spinning, twisting, and twining
Apparatus and processes
Covering or wrapping
57401, 57409, 57411, D01H 7882, D02G 336
Patent
active
045733120
ABSTRACT:
A friction spinning apparatus, includes oppositely-disposed, rotationally-symmetrical friction elements rotating in the same direction, the friction elements having perforated casings defining a line of closest mutual approach between the casings and two wedge-shaped regions adjacent the line of closest mutual approach, stationery suction devices disposed in the casings, the suction devices having suction apertures directed toward the perforated casings, a fiber feeding device for feeding spinning fibers along a yarn withdrawing direction, and a yarn withdrawing device for withdrawing yarn, each of the casings including a yarn formation zone receiving the spinning fibers at substantially the furthest upstream portion of the casings in the yarn withdrawing direction for continuously forming yarn, a curved transition zone downstream of the yarn formation zone, and a yarn consolidation zone downstream of the transition zone, the yarn consolidation zone being separate from and having a longitudinal axis disposed outside of the yarn formation zone, the yarn consolidation zone being disposed substantially at the furthest downstream portion of the casings.
REFERENCES:
patent: 4130983 (1978-12-01), Dammann et al.
patent: 4168601 (1979-09-01), Didek et al.
patent: 4202163 (1980-05-01), Turk et al.
patent: 4241574 (1980-12-01), Turk et al.
patent: 4281507 (1981-08-01), Didek et al.
Brockmanns Karl-Josef
Lunenschloss Joachim
Greenberg Laurence A.
Lerner Herbert L.
Petrakes John
W. Schlafhorst & Co.
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