The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 06, 1979
Filed:
Nov. 18, 1977
Phillip W Chambley, Rome, GA (US);
Alan H Norris, Rome, GA (US);
WWG Industries, Inc., Rome, GA (US);
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.