Cutting apparatus for chippers

Claim 1

A CUTTING APPARATUS FOR A CHIPPER COMPRISING A ROTATABLE DISC, ONE SIDE OF WHICH PROVIDES A DISC FACE, SAID DISC, HAVING A SLOT EXTENDING THERETHROUGH GENERALLY TOWARD THE PERIPHERY THEREOF AND SPACED AWAY FROM THE AXIS OF ROTATION OF SAID DISC, THE TOP OF SAID SLOT DEFINING A RECESS, A CHIPPING KNIFE POSITIONED WITHIN SAID RECESS, SAID KNIFE INCLUDING A CUTTING EDGE AT ITS FRONT END, THE DISC TANCE BETWEEN SAID CUTTING EDGE AND THE REAR END OF THE KNIFE DEFINING THE WIDTH OF SAID KNIFE, SAID RECESS OPENING AT SAID DISC FACE AND EXTENDING PARTICALLY THROUGH SAID DISC FOR LESS THAN THE WIDTH OF SAID KNIFE TO TERMINATE AT A SHOULDER WHICH FORMS A SEAT AGAINST WHICH THE REAR END OF SAID KNIFE, ABUTS WITH SAID CUTTING EDGE PROJECTING BEYOND SAID FACE, MEANS FOR REMOVABLY CLAMPING SAID KNIFE WITHIN SAID RECESS, SAID MEANS COMPRISING A CLAMPING PLATE HAVING A FIRST BEARING SURFACE ABUTTING SAID DISC REARWARDLY OF SAID SEAT AND A SECOND BEARING SURFACE ABUTTING SAID KNIFE NEAR THE FRONT END OF SAID KNIFE, AND FASTENING MEANS CONNECTING SAID CLAMP TO SAID DISC BETWEEN SAID BEARING SURFACES TO URGE SAID FIRST BEARING SURFACE AGAINST SAID DISC AND SAID SECOND BEARING SURFACE AGAINST SAID KNIFE, WHEREBY THE FORCE OF SAID CLAMP IS DIRECTED TO THE FRONT OF SAID KNIFE ADJACENT THE CUTTING EDGE THEREOF, TO SECURELY CLAMP SAID KNIFE WITHIN SAID RECESS IN A CUTTING POSITION ON SAID DISC.