Importance

Loading Importance Indicators...

Abstract

Apparatus for controlling tension in a traveling yarn being delivered to a driven winding apparatus includes sequential yarn-engaging first and second idler rolls, one having a stationary rotational axis and the rotational axis of the other being movable in a defined path responsive to tension variations in the traveling yarn, a piston-and-cylinder biasing assembly for urging the movable roll into yarn tensioning engagement, and a potentiometer for sensing tension-responsive movement of the movable roll and operatively associated with the winding apparatus for varying its yarn winding speed to compensate for such tension variations. In one embodiment, the movable roll follows a horizontal path of movement and is spaced considerably from the stationary roll for functioning as a yarn accumulator. In a second embodiment, the movable roll pivots through an arcuate path of movement centered about the stationary roll.

Loading the Abstract Image...

First Claim