Method of and appparatus for forming a package on a rotatable take-up device

An apparatus for forming a package on a rotatable take-up comprising a rotatable take-up;

• first means for feeding an elongated flexible workpiece towards said take-up to be wound onto and form a package on the same, including a swingable tensioning roller adapted to exert tension upon the workpiece;
• variable second means for rotating said take-up in dependence upon the diameter of the package thereon;
• fluid-activated third means for said swingable roller to press the same against said workpiece;
• an electric control circuit for said variable second means, including a first adjustable potentiometer;
• a tension-control circuit for controlling the tension exerted by said swingable roller, including a second adjustable potentiometer mechanically coupled with said first potentiometer, and a third adjustable potentiometer electrically coupled with said second potentiometer;
• and fourth means including cam surface means and slidable follower means whose movements are controlled by the adjustments of said third potentiometer, for preselecting the force exerted by said fluid-activated third means upon said swingable roller.