YARN DUAL TWISTER AND DOUBLER

摘要

Disclosed is a textile yarn twisting apparatus consisting of a rotating hollow tube with a twist trapping device at one end thereof and means to periodically reverse the direction of rotation of said tube. The twisting apparatus may be positioned on the traverse mechanism of a yarn winding machine in close proximity to yarn take-up means, and serves to insert a measurable twist in the yarn. Disclosed is a method and apparatus for the insertion of a twist of alternately opposing directions in selected successive sections of textile yarn, while being advanced in a continuous process with or without the application of heat while under controlled tension. Also disclosed is a method and apparatus for producing a finished take-up package of yarn suitable for further handling or processing.