HIGH TORQUE DRIVE MEANS FOR TWO VERY CLOSE SHAFTS AND APPLICATION THEREOF TO A DOUBLE SCREW EXTRUDER

摘要

ABSTRACTAn apparatus for rotationally driving two closelyspaced parallel shafts comprises a driven gear on eachshaft and two drive means for driving each of thedriven gears. The shafts are constrained to rotate atthe same speed by interengaging teeth of the drivengears or by an idler gear. Four independent motors areused to drive the shafts.