Devices for producing a continuous thread from a roving composed

Details Devices for producing a continuous thread from a roving composed Devices for producing a continuous thread from a roving composed

1985-08-15

1986-10-07

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

With drafting

19236, 19244, 19247, 19248, 57329, 57331, 57350, D01H 528, D01H 526

Patent

active

046151702

ABSTRACT:
A roving of short fibers is converted to a continuous twisted thread by a device which grips the roving between the facing teeth of two endless belts, and an acoustically generated transverse air jet is directed at the side of the roving, at a fixed point situated between the two belts. The direction of the air jet is reversed each time the fixed point is passed either a pair of facing teeth, or the midpoint in the gap between two successive pairs of facing teeth.

REFERENCES:
patent: 1748712 (1930-02-01), Gminder
patent: 1926288 (1933-09-01), Koch
patent: 2091153 (1937-08-01), Martin
patent: 2206242 (1940-07-01), Truslow
patent: 3636591 (1972-01-01), Herubel
patent: 3898712 (1975-08-01), Blackburn et al.
patent: 4070732 (1978-01-01), Herubel

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