Apparatus for cutting and shredding wood

Claim 1

Apparatus for cutting and shredding wood, comprising chute means for receiving wooden materials and dElivering the same to a cutting station; a cutting bar mounted on one end of said chute means and having a cutting edge on which said material is adapted to be cut; a cutting drum adjacent said one end of said chute means, said drum being mounted for rotation about an axis transverse to the longitudinal axis of said chute means, a radial plane of said cutting drum which includes said cutting edge of said cutting bar forming an acute angle with said floor of said chute means whereby the periphery of said drum depends below said floor of said chute means, said angle being sufficiently large to facilitate self-feeding of said material through the space defined by said periphery of said drum and said cutting edge of said cutting bar, said angle being of a magnitude less than the value at which said materials would be drawn under said drum to jam the same; a plurality of hard metal teeth spirally attached to said periphery of said cutting drum for crushing said wooden materials and cutting the same on said cutting bar, said teeth comprising segments of a rectangular bar cut on parallel planes at each end thereof, said planes forming an acute angle with the longitudinal axis of said bar, one of the uncut surfaces of said bar being positioned generally tangential to said periphery of said drum, the foward surfaces of said teeth being undercut in the direction of rotation of said drum; means to move said material along said floor of said chute means to said cutting station; and power means for rotating said drum.