Patent ID: 6715393
Filing Date: 2004-04-06
Classification: B23D,Y10T

Abstract:
An apparatus for cutting material, comprising:a frame; a pair of shafts rotatably mounted on said frame, said shafts being geared to each other for counter-rotation when rotatably driven; a pair of cooperating knife assemblies respectively mounted on said shafts for counter-rotation therewith, each of said knife assemblies including a hub mounted on the respective one of said shafts, and at least one generally helically-oriented knife blade, so that counter-rotation of said shafts moves respective ones of said knife blades of said pair of knife assemblies into cutting cooperation with each other; and an adjustment mechanism for moving a movable one of said knife assemblies axially of the respective one of said shafts to thereby alter the clearance between said generally helically-oriented knife blades by relative axial movement of said knife blades.