Textiles: spinning – twisting – and twining – Apparatus and processes – Open end spinning
Patent
1985-07-15
1988-05-17
Petrakes, John
Textiles: spinning, twisting, and twining
Apparatus and processes
Open end spinning
57408, 57411, D01H 7898, D01H 1135
Patent
active
047442107
ABSTRACT:
A method of producing a twisted thread from spinning fibers by friction spinning includes moving two friction elements of a friction spinning machine in opposite directions defining a spinning wedge therebetween, at least one of the friction elements having a perforated wall, feeding spinning fibers into the spinning wedge in a given direction with a transporting air current, continuously withdrawing a twisted thread from the spinning wedge in the given direction, sucking a first part of the transporting air current through the perforated wall of at least one of the friction elements, and sucking a second part of the transporting air parallel to the spinning wedge, parallel to the thread and opposite to the given direction in which the thread is withdrawn and the fibers are fed into the spinning wedge, and a device for carrying out the method.
REFERENCES:
patent: 4315398 (1982-02-01), Parker et al.
patent: 4522023 (1985-06-01), Stahlecker
patent: 4537021 (1985-08-01), Parker
patent: 4570434 (1986-02-01), Stahlecker
patent: 4571932 (1986-02-01), Stahlecker et al.
patent: 4606187 (1986-08-01), Stahlecker
Lembeck Theo
Raasch Hans
Greenberg Laurence A.
Lerner Herbert L.
Petrakes John
W. Schlafhorst & Co.
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