Abstract: A fragmenting rotor assembly for comminuting waste wood and other fragmentable material. A hammer support is carried by a drive shaft driven in rotation about a longitudinal drive shaft axis. The hammer support projects radially relative to the drive shaft axis and includes a radially outer hammer head. A fragmenting knife is removably secured to the hammer head and has a reducing edge disposed in a radially outer cutting position. A deflecting member is carried by the drive shaft and has a radially outer end that deflects fragments away from at least a portion of the fragmenting knife. The hammer support and/or the deflecting member are carried by at least one rod of a plurality of circumferentially-spaced axially-extending rods that are carried on the drive shaft by axially-spaced rotor members.

Abstract: A fragmenting rotor assembly for comminuting waste wood and other fragmentable material. A hammer support is carried by a drive shaft driven in rotation about a longitudinal drive shaft axis. The hammer support projects radially relative to the drive shaft axis and includes a radially outer hammer head. A fragmenting knife is removably secured to the hammer head and has a reducing edge disposed in a radially outer cutting position. A deflecting member is carried by the drive shaft and has a radially outer end that deflects fragments away from at least a portion of the fragmenting knife. The hammer support and/or the deflecting member are carried by at least one rod of a plurality of circumferentially-spaced axially-extending rods that are carried on the drive shaft by axially-spaced rotor members.

Abstract: A rotor assembly operable with anvil mechanism for comminuting waste wood and other fragmentable material has a rotating drive shaft with a series of rotors fixed in axially spaced relation thereon. A series of radially projecting hammers mechanisms are situated along the axis of the shaft and powered by the shaft. Fragmenting knives are removably secured to the leading outer portions of the hammer mechanisms. The hammer mechanisms include sidewisely reversible hammer legs having portions received by the rotors sidewisely contiguously.

Abstract: A rotor assembly operable with anvil mechanism for comminuting waste wood and other fragmentable material has a rotating drive shaft with a series of rotors fixed in axially spaced relation thereon. A series of radially projecting hammers mechanisms are situated along the axis of the shaft and powered by the shaft. Fragmenting knives are removably secured to the leading outer portions of the hammer mechanisms. The hammer mechanisms include sidewisely reversible hammer legs having portions received by the rotors sidewisely contiguously.

Abstract: A fragmenting rotor assembly for waste wood and other fragmentable material has a drive shaft assembly including mechanism for driving the shaft in a direction of rotation. A series of radially projecting hammers mechanisms are situated along the axis of the shaft and powered by the shaft. Fragmenting knives are removably secured to the leading outer portions of the hammers. The drive shaft has a series of rotors fixed in axially spaced relation thereon. The hammer mechanisms include hammer supports having portions situated axially sidewisely between the rotors on hammer support members spanning the rotors and rotating with the rotor assembly.

Abstract: An apparatus, method of producing, method of operation and method of construction for producing a decoratively colored finish ground wood material includes providing a hopper adjacent a conveyor mechanism for maintaining and dispensing dry colorant onto a primary ground wood material. Further, providing and arranging a liquid dispensing mechanism adjacent an opening of a receptacle of a communition apparatus and dispensing liquid to wet the coated primary ground wood material. Lastly, grinding the wetted primary ground wood material with the comminution apparatus into a finish ground material of a lesser size than the primary ground wood material.

Abstract: A rotor assembly operable with anvil mechanism for comminuting waste wood and other fragmentable material has a rotating drive shaft with a series of rotors fixed in axially spaced relation thereon. A series of radially projecting hammers mechanisms are situated along the axis of the shaft and powered by the shaft. Fragmenting knives are removably secured to the leading outer portions of the hammer mechanisms. The hammer mechanisms include sidewisely reversible hammer legs having portions received by the rotors sidewisely contiguously.

Abstract: A generally horizontal wood comminuter has a crosswise rotor with comminuting knives moving in a path of rotation and a crosswise coacting anvil. A feed works provides a material support surface and a power-driven feed member above it for feeding material toward the rotor. The rotor is driven in an uphill path of rotation relative to the feed works. Lift arms pivotally carry the feed member for swinging vertical movement toward and away from the material support surface. A crosswise deflector plate is carried independently of the lift arms and extends toward the anvil and a crosswise lift arm plate coacts with the deflector plate to contain fragmented material. The anvil and a grate retainer preferably are pivotal to move together from an operative to an inoperative position. A torque limiting device controls the drive of the rotor.

Abstract: A generally horizontal wood comminuter has a crosswise rotor with comminuting knives moving in a path of rotation and a crosswise coacting anvil. A feed works provides a material support surface and a power-driven feed member above it for feeding material toward the rotor. The rotor is driven in an uphill path of rotation relative to the feed works. Lift arms pivoted rearwardly of the feed works pivotally carry the feed member for swinging vertical movement toward and away from the material support surface. A crosswise deflector plate is carried independently of the lift arms and extends toward the anvil and a crosswise lift arm plate coacts with the deflector plate to contain fragmented material. The anvil and a grate retainer preferably are pivotal to move together from an operative to an inoperative position.

Abstract: A fragmenting rotor assembly for waste wood and other fragmentable material has a drive shaft and mechanism for driving the shaft in a direction of rotation. A series of radially projecting hammers are situated along the axis of the shaft and powered by the shaft. Fragmenting knives are removably secured to the leading outer portions of the hammers and deflector members are mounted in radial alignment with said hammers and have outer ends traveling in a circumferential path of lesser radial extent than the circumferential path of the knife edges. The rotary paths of axially adjacent knives axially intersect along the axis of the shaft.

Abstract: A generally horizontal wood comminuter has a crosswise rotor with comminuting knives moving in a path of rotation and a crosswise coacting anvil. A feed works provides a material support surface and a power-driven feed member above it for feeding material toward the rotor. The rotor is driven in an uphill path of rotation relative to the feed works. Lift arms pivoted rearwardly of the feed works pivotally carry the feed member for swinging vertical movement toward and away from the material support surface. A crosswise deflector plate is carried independently of the lift arms and extends toward the anvil and a crosswise lift arm plate coacts with the deflector plate to contain fragmented material. The anvil and a grate retainer preferably are pivotal to move together from an operative to an inoperative position.

Abstract: A wood chipper is disclosed comprising a large rotational disc with a pattern of blade mounting pockets, usually in a spiral, on the front face, such that mounted chipping knives project diagonally from the face of the disc at an acute angle to the disc, with chip passage slots extending through the disc at these pockets; and hardened elongated ridges protruding from and integral with the disc face, offset from the pockets and slots toward the direction of rotation, these ridges being diagonally oriented relative to a radius of the disc.