Textiles: spinning – twisting – and twining – Apparatus and processes – Alternate twist
Patent
1977-11-18
1979-03-06
Gorenstein, Charles
Textiles: spinning, twisting, and twining
Apparatus and processes
Alternate twist
57297, 156180, H01B 1304
Patent
active
041423550
ABSTRACT:
Self-twist plural yarn strands are produced by a system wherein at least two singles yarn strands are individually twisted to form twisted strands each having longitudinally spaced nodes. The strands are separately conveyed around a yarn wheel and brought together in a parallel relationship with the nodes of one strand substantially aligned with the nodes of each other strand. The corresponding nodes from one strand are fastened to those of each other strand by heating with an electric arc and the strands are removed from the wheel and allowed to ply. The node fastening means comprises a pair of electrodes and a circuit for supplying arc-producing voltage across the electrodes. One electrode is mounted on the wheel and extends diagonally across and under the node location. The other electrode is fixed adjacent the wheel so that the arc traverses the yarn as it passes from one end of the diagonal electrode to the other.
REFERENCES:
patent: 3434275 (1969-03-01), Backer et al.
patent: 3600251 (1971-08-01), Singleton
patent: 3684612 (1972-08-01), Pantazis
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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