VARIABLE SPEED TRANSMISSIONS, VARIABLE SPEED MOTOR PULLEYS, AUTOMATIC MECHANICAL CONTROLS FOR USE IN CONNECTION WITH VARIABLE SPEED CONTROL IN PRODUCTION PROCESSES TO CONTROL THE SPEED OF WINDERS, WIRE REELS, SHAFTS, DRUMS, ETC., AUTOMATIC TENSION CONTROLS FOR CONTROLLING THE TENSION OF MATERIAL BEING WOUND OR UNWOUND BY WINDERS OR REELS OR BEING PASSED OVER CONVEYORS, DRUMS, ETC., AND VARIABLE SPEED MECHANISMS, AND REELING SPOOL CONTROL FOR WINDING OR UNWINDING WIRE OR THE LIKE UNDER CONSTAN...