Abstract: A shredder structure, components, and sub-combinations thereof, useful for shearing, shredding, and/or chopping a variety of materials such as municipal and industrial solid waste products, vehicle tires, and other materials desired to be comminuted. The hopper of the structure is preferably hinged to provide easy access to the made-up shaft. The shaft carries a series of rotating bladeholders keyed to the shaft and provided with radial protrusions and contiguous slots accommodating fitted-blade placement. The rotating bladeholders are spaced apart by spacers which serve not only to mutually space the rotating bladeholders, but also to support the sides of the rotating blades so as to form with the bladeholder slot pockets or seats for such blades. Particular support structure is used for the stationary blade employed, with which the individual rotating blades on each bladeholder co-act.

Abstract: A device for the destruction of microfilm and similar data carriers with microimage impressions which is designed to shred the data carriers by means of a rotating shredding cutter in the form of a plain milling cutter whose teeth move past a transversely extending stationary cutting edge. A strip feeding unit advances the data carrier strip past this cutting edge along a guide plate, said unit including a driven endless conveying member which forms a conveying gap with the guide plate. A second stationary cutting edge forms a second cutting point behind the first cutting point. The strip feeding unit is self-contained and movable against a spring bias in relation to the main frame and its guide plate, so that a safety switch, responding to such movement, stops the device when too many data carriers are fed into the device simultaneously.

Abstract: A straw chopping and spreading device consisting of a rotary chopper, mounted in a housing assembly and a spreader assembly 16 through which chopped straw passes out of the housing assembly. The spreader assembly consists of a pair of converging plates which form a converging nozzle, a series of adjustable spreader plates for controlling the width of spread and an adjustable deflector for adjusting the angle at which chopped straw is deflected toward the ground.

Abstract: A tire is placed upon an infeed support which initiates movement of a spindle to extend longitudinally through the tire, then expand radially to engage the tire beads and then retract longitudinally to clamp the beads together. One of a pair of power driven rolls having roughened, wear resistant surfaces, then is moved toward the fixed roll of a pair to grip the tire between them and rotate the tire and spindle assembly. The spindle and drive roll assembly, together with the rotating tire, then is moved by a common support carriage toward a rotary flywheel type cutter assembly which operates on the tire in the radial direction inward from the tread area to an area closely adjacent the metal beads, reducing the tire to small pieces. An air fan is integrated with the flywheel of the cutter assembly to minimize heating of the flywheel and cutter mechanism. A metal sensor on the infeed support prevents operation of the apparatus if the tire contains steel belts.

Abstract: A shredding apparatus including a housing or hopper and a shredding assembly positioned within the housing or hopper. The shredding assembly including a cutter bar assembly and a rotary blade assembly. Each of the assemblies including a number of identical cutter blades which are interchangeable with each other and are individually reversible. The cutter bar assembly also including a cutter bar positioned in abutting engagement with one end of each of the cutter blades mounted on the cutter bar assembly. The cutter bar including cutting edges on each side so it can be reversed with respect to the cutter blades. The cutter blades on the rotary cutter bar assembly are arranged to shear waste material at a downwardly and outwardly inclined angle so that the cutter blade acts to draw or pull waste material into the shredder assembly. The hopper or housing being provided with an easy access door on the front wall which can be pivoted outwardly from the hopper.

Abstract: A machine that quadrates documents comprising a stationary plate having along one edge a plurality of transversely-spaced cutting edges defining a cutting area, a rotor having axially thereof and radially-spaced from its axis a plurality of complementary cutting edges supported for rotation with the rotor about an axis parallel to the edge of the stationary plate for movement of the cutting edges in shearing relation to the cutting edges on the stationary plate and sheet-feeding rolls for advancing the documents to be quadrated along the surface of the stationary plate onto the cutting area to present a portion thereof to the cutting edges in timed relation to movement of the cutting edges into cutting relation with each other.

Abstract: An apparatus for cutting and conveying material, comprising a container with an insertion aperture, cutting and conveying means and outlet means, the apparatus having above the bottom of the container cutting means for cutting grooves in the material and conveying means for conveying the material between the grooves.

Abstract: Reduction structure including a revolving rotor and stationary structure. The revolving rotor is notched to provide a series of cutter sockets that individually receive cutters, preferably hardened steel cutters. The cutters are arranged in their sockets such that a majority of the length thereof is disposed within each socket; thereby, bolt attachment means may be reduced in number and can conceivably be one in number per cutter. The ends of the shaft are preferably turned down for bearing support and coupling to adjacent prime mover structure. The hopper, within which the rotor as above-described is mounted, preferably includes an anti-rotation member in the form of an elongate bar having one or more declining flanges, these flanges serving to preclude counter-rotation of any element such as logs as may be introduced into such hopper.

Abstract: The apparatus features a conveying means with rakes and other blade members for coarse crushing the chips. The conveying means is in the form of a chain conveyor contained in a trough. The members for coarse crushing of the chips consist of inverted L-shaped grapples, the leading edges of which have a curvature, and of blades, the cutting edges of which face the leading edges of the grapples and are provided with a curvature having a radius which is about equal to the radius of the curvature of the leading edge of each grapple. The blades are fitted to the inside surface of the trough, in at least two rows, above a zone traversed by the chain conveyor, so that the grapples pass between the rows of blades. The inverted L-shaped grapples are suitably attached to links of the chain.

Abstract: A mill for crushing tree trunks is disclosed which includes a rotor having a series of crushing blades disposed helically around the rotor. The rotor blades pass between axially spaced stator blades in the mill housing to crush the trunks and liberated associated foreign matter. The crushed material and liberated foreign matter is moved toward one end of the mill housing by the action of the helically disposed rotor blades where it is discharged from the mill.

Abstract: Waste such as combustible trash and prime garbage is mixed with rubber tires and shredded together to produce a compacted and combustible output product which can be used as a fuel or incinerated for further compacting.The apparatus involves interengaging rotary feeder-cutter wheels mounted on counterrotating shafts to pull materials through a feed path while shredding with the aid of shredder blades interspersed between the wheels. Feeding, mixing and conveying techniques through one or more shredder stages provide for attainment of high speed feed rates and handling of some degree solid debris such as steel belts in tires.

Abstract: A shredder comprising a rotor and stationary structure. The rotor includes a shaft provided with a series of grooves and split blades mounted within said grooves, this by attachment means penetrating the shaft. The fixed structure forms an anvil or reaction structure having a series of independently removable, supported, upright transverse support blocks having hardened metal segments provided with upper cutting or shearing edges. The anvil structure includes an elongate cutter bar forming, with the cutting edges of said segments, a U-shape groove through which the individual blades pass. All of the hardened-metal, and preferably tempered steel cutting segments are completely supported by the fixed support structure and are usually independently and individually replaceable as may be needed through the operation of the machine. Ramp-providing rib structures are provided and are likewise split construction for easy removal from the interior hopper area of the shredder.

Abstract: A shredder structure and improvements therein for shredding or otherwise comminuting materials such as municipal and industrial waste, construction debris, automobile tires, and so forth, wherein there may be selectively installed structure which both delimits and constricts the travel path of incoming materials to the cutting portion of machine and which may also regulate the extent or degree of cut. Cutter bar segments disposed on the stationary cutter bars of the shredder can be inverted and/or turned end-for-end for prolonged use in the machine before edge sharpening or replacement of the segments becomes necessary, and this because only portions of the cutter bar segments will be utilized with any given segment installation, so that remaining portions and remaining edges are held in reserve for future use.

Abstract: In a thresher, means for independently mounting cutters and for replacing each cutter without disturbing other cutters, the rotor or the fixed cutter mounting means.

Abstract: Shearing structure for materials' reduction equipment wherein a scissor-type shearing function is preserved, as between the blades and cutter bars used, from an initial shearing position throughout passage of the blade tip toward, at, and past the shearing edge of associated anvil or cutter bar structure. Each blade tip is provided with an apex, the same mating with an apex recess in the cutter bar structure which defines an outermost extremity of the blade travel path through such cutter bar structure.

Abstract: A machine for chopping polymers, and in particularly elastomeric materials such as tires, into uniform small size particles through the use of a rotating cutting head having teeth that have side cutting edges generally perpendicular to their outer end edges, which are parallel to the axis of rotation, and interfit with stationary teeth formed in complimentary shape. The cutting head is used in combination with a material infeed mechanism that maintains a steady, positive feed of material to reduce the elastomeric material into uniform small chunks that can be used for fuel, or otherwise more readily disposed than the present large size tires or similar articles.

Abstract: A comminutor for comminuting solid materials carried by flowing fluids, such as industrial wastes or sewage, in which cutter elements carried by a plurality of rotating rings forming a cone shaped rotor co-act with stationary cutter elements supported alongside the rotor, and a method of comminuting. The stationary cutter elements are reversable so that upon repositioning, new stationary cutting edges are presented to the cutter elements carried by the rotating rings. A plurality of stationary cutter elements are formed on a single structure, each stationary cutter element forming a cutting station. The cutting action is further increased by providing co-acting cutting edges in planes perpendicular as well as parallel to the rotor axis at each cutting station.

Abstract: An apparatus for comminuting bulky objects, especially vehicle tires and parts of automobile bodies, comprises two parallel shafts arranged for rotation in opposite directions and at different speeds, each shaft being driven by a separate hydraulic motor and provided with comminuting rings alternately axially staggered with respect to one another on each of the shafts. The rings are provided with means including sharp, pointed portions for seizing and comminuting the objects while conveying them through interstices defined between adjacent rings on the shafts and by smooth portions of the shafts themselves. The shafts comprise a number of alternately disposed grooved bearing surfaces and smooth surfaces constituting the smooth portions. The rings are formed of a number of ring-elements, each in the shape of a sector of an annulus and having a grooved, concave, cylindrical inner surface engaged with a portion of a grooved bearing surface.

Abstract: A rotatable machine for chopping or comminuting lumps, curds or chunks of material into particles or pieces of acceptably smaller size adapted for permanent installation in a liquid flow line. Includes an internal chopping combination of rotatable and stationary blades intersecting the flow path of the flow line and adapted to be removed, repaired or completely rebuilt, and replaced without the consequent time, labor and expense of removing the main body from the flow line.

Abstract: A plate is detachably securable to the bottom of a conventional lawn mower. The plate covers approximately half of the bottom but leaves the portion open at the rear. A specifically altered cutting blade of the mower, driven by the motor, rotates over the top of the blade. Fixed blades attached to each end of the rotating blade cooperate with fixed fingers fixed to the plate to shred leaves picked up by the mower. The mower, with the device attached, can be placed on top of a stand that has an open front into which leaves may be raked. Thus, a fixed leaf shredder is formed, into which piles of leaves can be raked for efficient shredding and bagging.

Abstract: An onion slicer comprises a drum-shaped body composed of a bottom part and a removable upper part. The upper part contains a plurality of fixed radially disposed bars forming a grating, a rotatable cutter shaft, and a plurality of knife blades attached to the shaft and adapted to pass through the gaps between neighboring bars when the shaft is rotated.