Rethreading arrangement for friction false-twisting unit for tex

Details Rethreading arrangement for friction false-twisting unit for tex Rethreading arrangement for friction false-twisting unit for tex

1985-05-24

1987-01-06

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Threading up

57 88, 57340, 57348, D01H 1500, D01H 1241, D01H 722, D02G 108

Patent

active

046336613

ABSTRACT:
In a friction false-twisting unit including three parallel spindles supported on a mount and each spindle carrying a stack of friction disks and the friction disks of the various spindles being interleaved, the thread to be threaded into the unit passing from an upper thread guide above the ends of the spindles, over a thread guide arm which holds the thread away from contact with the disks, and to a feeder system below the other end of the spindles. A support lever is movable between an operative position which holds the drive whorl for the spindles in contact with an operating belt and an inoperative position at which the spindle mount is moved to separate the drive whorl from the belt. The thread guide arm is on the support lever to be moved to the position holding the thread away from the disk when the support lever is moved to the inoperative position of the unit. The thread guide arm is comprised of or coated with a material which permits the thread to rub over the thread guide arm without damage to either the thread guide arm or to the thread.

REFERENCES:
patent: 4226080 (1980-10-01), Bieber et al.
patent: 4235071 (1980-11-01), Dillon
patent: 4325213 (1982-04-01), Adenheuer
patent: 4442664 (1984-04-01), Schmitt et al.
patent: 4485617 (1984-12-01), Schmitt et al.
Leimer, Rollo M., "Wear-Resistant Coatings: Their Evolution as Fiber Contact Surfaces", Oct. 1980, Fiber Producer.
Sharp, William F., "Properties and Applications of Composite Diamond Coatings", 1974, Proceedings Diamond-Partner in Productivity 1974, pp. 121-126.

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