Textiles: spinning – twisting – and twining – Apparatus and processes – Alternate twist
Patent
1978-02-06
1979-11-06
Gorenstein, Charles
Textiles: spinning, twisting, and twining
Apparatus and processes
Alternate twist
156 732, 1565802, H01B 1304, D02G 326
Patent
active
041731158
ABSTRACT:
False-twisted yarn strands are separately carried around a guide wheel and the nodes thereof are brought together and locked by applying heat to the nodes and pressing them together, after which the strands are self-twisted. Embodiments include a cam actuated clamping device which holds the yarns in an ultrasonic transducer to which energy is supplied to accomplish the welding. Devices using resistance heating and laser impulses are also disclosed.
REFERENCES:
patent: 3184354 (1965-05-01), Strother
patent: 3434275 (1969-03-01), Backer et al.
patent: 3775955 (1973-12-01), Shah
patent: 4074511 (1978-02-01), Chambley et al.
Chambley Phillip W.
Norris Alan H.
Gorenstein Charles
WWG Industries Inc.
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