Universal dancer speed control

摘要

A speed control device for a web processing machine having a dancer arm on its input. A cable connected to the dancer arm translates its movement to a cable reel of a speed control potentiometer actuator mechanism which has a variable rotary lost motion connecting device to furnish a dead band so the potentiometer does not immediately respond to every movement of the dancer arm. The cable is secured to the arm at a short distance from the arm pivot point so that a relatively small cable movement is involved.