Open-end frictional spinning apparatus

Details Open-end frictional spinning apparatus Open-end frictional spinning apparatus

1978-12-26

1980-09-16

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Unitary multiple twist devices

57 5889, 57334, D01H 1135

Patent

active

042222222

ABSTRACT:
There is disclosed an apparatus for the frictional spinning of yarn on the open-end principle. The apparatus includes a mechanism for supplying separated fibers onto one of frictional surfaces provided on respective rotary carriers inserted one in the other and forming a wedge-like gap therebetween in the mouth of which fibers are twisted due to friction with the two frictional surfaces moving in opposite directions in said wedge-like gap, and a mechanism for withdrawing the yarn from said mouth of said wedge-like gap and adapted to prevent any twist propagation, one frictional surface being concave and the other being convex relative to the yarn building region in the mouth of the wedge-like gap. In accordance with the invention a carrier through its front opening situated opposite its second front opening for delivering yarn withdraw from the mouth of the wedge-like gap. The axis of rotation of the outer carrier is perpendicular to the longitudinal axis of an open-end frictional spinning machine, said longitudinal axis constituting a section line along which a horizontal plane and a vertical plane intersect each other and thus divide the machine into four quadrants containing, respectively, a sliver supply container and a yarn take-up mechanism.

REFERENCES:
patent: 3611695 (1971-10-01), Brown
patent: 3786622 (1974-01-01), Negishi
patent: 3913310 (1975-10-01), Fehrer
patent: 3972173 (1976-08-01), Fehrer
patent: 3981137 (1976-09-01), Fehrer
patent: 4051653 (1977-10-01), Mitteregger
patent: 4060966 (1977-12-01), Konig
patent: 4107909 (1978-08-01), Fehrer et al.
patent: 4130983 (1978-12-01), Dammann et al.

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