Cutting apparatus for plastic sheeting

Claim 1

A CUTTING APPARATUS FOR LONGITUDINALLY CUTTING WEB FORM PLASTIC SHEETING COMPRISING A SHEETING SPOOL FOR RECEIVING WEB FORM PLASTIC SHEETING TO BE CUT INTO INDIVIDUAL TAPES, A CUTTING UNIT FOR CUTTING SAID SHEETING INTO TAPES INCLUDING A FREELY ROTATABLE CUTTER ROLLER HAVING A PLURALITY OF ANNULAR GROOVES AND A CUTTER HEAD WITH A PLURALITY OF CUTTING BLADES COACTING WITH SAID GROOVES, MOUNTING MEANS FOR MOUNTING SAID CUTTER ROLLER AND CUTTER HEAD FOR RELATIVE MOVEMENT TO CONTINUALLY CHANGE THE CUTTING EDGES OF SAID BLADES, SAID MOUNTING MEANS FOR SAID CUTTER ROLLER AND CUTTER HEAD INCLUDING SUPPORTING MEMBERS EXTENDING THEREFROM AND PIVOTABLE ABOUT THE SAME AXIS, MEANS FOR OSCILLATING IN PENDULUM FASHION SAID SUPPORTING MEMBERS 90* OUT OF PHASE, A PLURALITY OF FREELY ROTATABLE GUIDE ROLLERS BETWEEN SAID SHEETING POOL AND CUTTING UNIT TO GUIDE SAID SHEETING TO AND BETWEEN SAID CUTTER ROLLER AND CUTTER HEAD, DRIVE ROLLERS FOR DRAWING THE CUT TAPES FROM THE CUTTING UNIT, TAKE UP ROLLERS FOR RECEIVING THE CUT TAPES FORM THE DRIVE ROLLERS, AND TAPE GUIDE MEANS BETWEEN THE DRIVE ROLLERS AND TAKE UP ROLLERS.