False twisting apparatus

Details False twisting apparatus False twisting apparatus

1978-02-22

1980-04-01

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

False twist device

57337, 57338, D02G 104, D01H 792

Patent

active

041954700

ABSTRACT:
In a false twisting apparatus in which the yarn to be twisted passes between parallel, rotating shafts carrying axially spaced friction disks which radially overlap disks on the other shafts, the yarn-engaging circumferential faces of the disks are surfaces of rotation about the shaft axes and arcuately connect respective radially extending, axially spaced end faces of the disks, each face having a yarn feed region and a yarn delivery region, the regions being annular about the axis of rotation and axially juxtaposed, the yarn feed region consisting essentially of aluminum, zirconium, or titanium oxide and having a surface roughness greater than the surface roughness of the yarn delivery region.

REFERENCES:
patent: 3901011 (1975-08-01), Schuster
patent: 4012896 (1977-03-01), Fischbach
patent: 4018041 (1977-04-01), Weigert et al.
patent: 4050229 (1977-09-01), Hayahusa
patent: 4051655 (1977-10-01), Lorenz et al.

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