Abstract: The invention refers to a knife holder for comminution devices, comprising a tooth body (1) which can be fastened on a comminution cylinder or the like, and at least one knife (2), the knife (2) being able to be arranged positive-locking on the tooth body (1). The invention is characterized by the fact that a knife receiving device is provided, the knife receiving device (3) is designed as recess (4), and, seen from the side, has the shape of a J, and the recess (4) is designed wedge-like or conically, preferably tapering-off to the outside in such a way that recess surfaces (4/1, 4/2) occur.

Abstract: A stump cutting tool for use with a stump cutting apparatus including a rotatable cutting wheel having a pair of side surfaces. A mounting block or pocket forms part of the structure that secures the cutting tool to the cutting wheel. The cutting tool includes a cutting tooth and a tooth holder. The tooth holder includes an elongated shank and a head located adjacent one end of the shank. A bore extends through the head of the tooth holder. The cutting tooth includes an elongated shank with a head portion located adjacent one end thereof. A cutting bit is attached to the head portion. The shank of the cutting tooth disposed and secured within the bore.

Abstract: The invention relates to an apparatus and method for conditioning materials for processing such as materials used in a recycling process. The invention includes a conditioning section including a drum associated with teeth. The end of the drum is rounded to prevent material from becoming lodged between the end of the drum and the conditioner section housing. A support bar is added to provide structural support to the teeth and to provide a tooth at the end of the support bar point toward the housing wall to further prevent materials from becoming lodged between the end of the drum and the conditioner section housing. The rotation teeth pass between stationary fingers. The finger may further include finger teeth. The length of the fingers, the distance between the finger and the drum, and the finger teeth configuration may be remotely selected to provide for conditioned materials of different sizes.

Abstract: A replaceable tooth arrangement for use in grinding discs such as used in wood hoggers and comminuting equipment. A preferred tooth arrangement includes two end to end adjacent tip portions, or a tip portion end to end with a complementary base portion. The contacting faces of the portions are preferably tapered so that tightening together creates a resultant outward movement which tightens them against the walls of a retaining aperture in a disc or disc section. Alternatively or additionally a connection element interacts with a wedge keeper which causes a similar outward component in the keeper and tip portion, tightening them against the walls of a retaining aperture, as the connection element is tightened.

Abstract: An impact mill including a base portion on which is disposed a rotor rotatably mounted in a bearing housing, the rotor having an upwardly aligned cylindrical surface portion coaxial with the rotational axis. The impact mill is provided with a mill casing within which is located a conical track assembly which surrounds the rotor to form a conical grinding path. The mill casing is provided with a downwardly aligned cylindrical collar which may be axially adjusted to set a grinding gap between the rotor and the mill casing. The rotor is provided with a plurality of impact knives complementary with a plurality of impact knives disposed on the inside top surface of the mill casing. The conical track assembly can be a series of assembled conical sections or one unit with varied number of serrations in either a vertical or sloped configuration. This flexibility allows for greater compatibility with the feedstock being milled.

Abstract: The present invention includes a cutting wheel device for grinding materials, the cutting wheel comprising a plurality of discrete plates mounted on an axle and cutting heads positioned between the plates. The cutting heads having a portion extending beyond the periphery of the plate. Secondary cutters are attached to the cutting head to project over an adjacent discrete plate for keeping debris from lodging between adjacent cutting heads.

Abstract: The present invention relates to a brush cutting head for a brush cutter. The brush cutter head includes a cylindrical support body that has a first end, an opposed second end and an intermediate portion extending therebetween. The intermediate portion has a curved surface that defines the circular cross-section of the cylindrical support body. A plurality of collars is mounted to the cylindrical support body at spaced intervals along the intermediate portion. Each collar extends radially from the curved surface of the cylindrical support body. Additionally, each collar cooperates with an adjacent collar to define a mounting station between the adjacent collars. The brush cutter head further includes a plurality of cutting tooth assemblies carried on the outer surface of the cylindrical support body. Each cutting tooth assembly has a cutting tooth for placement within the mounting station and a mounting assembly engageable with the adjacent collars to secure the cutting tooth in the mounting station.

Abstract: A shredding machine having loading section including a radially mounted pusher rod for driving materials placed with the loading section toward the cutting device. The radially mounted pusher rod may be spring loaded so as to exert resilient force on the materials during a shredding operation. At the end of a cycle, powered control arm returns the pusher rod to its original position.

Abstract: A plurality of chipper inserts that may be installed on a hammermill rotor in place of the hammer inserts to selectively convert the rotor to a chipper. The chipper inserts include drum surfaces that cooperatively define a chipper drum. The chipper inserts may include cutter inserts that have a cutter disposed in a cutter pocket. The chipper drum may be a generally continuous cylindrical interrupted essentially only by the cutter pockets. The cutters and cutter pockets may be positioned in essentially any desired pattern around the drum. The chipper inserts may include a left cutter insert, a center cutter insert, a right cutter insert and three different size spacer inserts. The different types of cutter inserts and spacer inserts may be installed about the rotor with at least one left cutter insert mounted on the left end of the chipper drum and at least one right cutter insert mounted on the right end of the chipper drum.

Abstract: A rotor of an impact crusher has at least one stellate plate, which can be attached to the rotor shaft. A plurality of paddle-blade type hammer tools are mounted on each stellate plate. The hammer tools are secured above and below the stellate plate by tool mounting brackets having hook-shaped ends that engage with the hammer tools. A respective adapter piece is placed in the stellate plate between the two tool mounting brackets. A retaining bolt penetrates the two tool mounting brackets and the adapter piece. A security slide secures the retaining bolt in position. The hammer tools of the inventive rotor for an impact crusher have a high usage volume and the rotor is extremely user-friendly with respect to the recurring tasks of setting and replacing the hammer tools, without having to loosen screw connections.

Abstract: A stump grinding wheel includes a wheel disc, which includes multiple recesses formed about its periphery. A peripheral cutter assembly is disposed in each one of the recesses and is mounted on the wheel disc. Multiple side cutter assemblies are mounted on the wheel disc, and each one includes a first pocket and a second pocket. The first pocket is disposed on one side of the wheel disc and the second pocket is disposed on the other side of the wheel disc, and a wear pad is formed adjacent a selected end of each pocket. A cutting tooth is received in aligned openings formed in the first pocket, the wheel disc, and the second pocket. A nut threadably engages the cutting tooth of the side cutter assembly to secure the tooth to the first and second pockets, and to secure the pockets to the wheel disc.

Abstract: A multi-functional tool assembly for a material processing machine includes a single tool including a head and a shaft integrally formed therein. The head has a cavity with an arcuate surface. The multi-functional tool assembly also includes a material reducer adapted to reduce material within the waste processing machine. The material reducer is disposed in the cavity and has an arcuate surface complementary to the arcuate surface of the cavity.

Abstract: Adjustable blades for wood chippers and cutters include one or more blades of selected length, thickness and width, fitted with one or more bevelled blade seats in the rear blade edge, which blade seats, in a first embodiment, receive corresponding bevelled inserts having threaded openings fitted with an insert mount screw and a pair of adjusting screws. The mount screws serve to seat the inserts firmly in the blade seats and reverse-manipulation of the adjusting screws in the inserts provides adjustment of the fit of the adjustable blades in a cutting or chipping head, to compensate for re-sharpening of the blades.

Abstract: The invention relates to a milling roller of a high-pressure material bed roller mill, having profile-members which are embedded with a portion of the length thereof in holes of the roller body and, with the remainder of the length thereof, protrude above the surface of the roller body, with, when the milling roller is new, the holes having different depths and the profile-members having different lengths in differently loaded part-regions of the width of the roller body. Such a construction brings about a long service-life for the roller and cost-effective reconditioning after operational wear with a production operation which reduces costs.

Abstract: A stump grinding wheel tooth assembly having a mounting block positioned around the periphery of the wheel and a cutting bit attached to the mounting block by a pin passing through a hole in the cutting bit and a corresponding hole in the mounting block and capped by a nut. The mounting block may support multiple cutting bits arranged into a predetermined patterns based on the location of the holes, such as pairs of cutting bits or even a quad formation. The cutting bits may be provided in various geometric configurations, such as round, triangular, square, rectangular, pentagonal, hexagonal, octagonal or decagonal.

Abstract: A shredding apparatus utilizes a cylindrical drum adapted for quickly and effectively clearing large tracts of land. Several blocks are positioned in two spiral rows on the periphery of the drum and are secured to the drum by welding. The blocks in each row are spaced from one another an axial distance that provides a complete sweep of the land as the drum rotates. Each of the blocks includes a replaceable cutter tooth. The teeth each include a shank that is anchored in a hole in each block. At least one block is mounted along each edge of the drum at a slight outward angle between about 2°, and about 15°, and is tilted outwardly between about 2° and about 5° so that its corresponding tooth provides protection of the drum edge. All of the remaining blocks are mounted so that the teeth are parallel with the drum axis.

Abstract: The invention relates to hard elements generally produced by powder metallurgy for protecting rolling press rollers from wear, this protection taking the form of grid armouring. In order to provide hard elements which can be produced relatively inexpensively and which, in particular, can again be disassembled in a relatively simple manner, even in the damaged state, from their respective roller body cutouts for the purpose of roller repair, the invention proposes prefabricated hard elements with a prefabricated central cutout which, starting from the radially inner end of the hard elements, extends over at least some of the height of the hard elements.

Abstract: A mulcher apparatus includes a tractor and a mulcher unit provided to the tractor. The mulcher unit includes a tooth assembly with a holder and a cutter element with a cooperating notch portion and cross bar arrangement. The notch portion can be retrofit to existing holder arrangements. The cutter element may include various features, to enhance cutting efficiency. For example, the cutter elements may include a double-ended structure, angle tab portions at each corner portion, carbide coatings, a pair of tip portions at each end with a space therebetween, and/or a generally H-shaped configuration.

Abstract: A light weight, low cost grinder assembly for a pepper grinder includes male and female rotary grinding members spaced to create between them a gap which determines the size of the ground pepper. Each of the male and female members is a composite of a polymer part and a corrugated steel grinding member which is advantageously produced by pressing.

Abstract: Polysilicon is crushed with a minimum of manual and machine crushing steps by utilizing a large diameter roll crusher, the circumferential crushing surface of which is formed of a plurality of reversibly mounted, close fitting hard metal plates. Reproducible crushing along with such low metal contamination that subsequent cleaning of the crushed polysilicon is not necessary are both obtained.

Abstract: The invention relates to a grinding roll with a basic roll body as well as a plurality of wear protection elements made from hard metal which form at least a part of the roll surface. The basic roll body has recesses extending in the circumferential direction, a plurality of wear protection elements being disposed one behind the other in the circumferential direction in each recess.

Abstract: The aim of the invention is to provide grinding rolls in particular for high-pressure roller mills or rolling presses for pressure grinding a granular material not only with a wear-resistant coating but also with a face armour plating in the area of the roller annular edge, which has a long service life due to the high wear resistance thereof and whose production and repair are, in general, relatively simple and inexpensive. For this purpose, the inventive face armour plating consists of a plurality of prefabricated hard bodies which are circularly arranged side by side in such a way that the circular face edge of the roller is formed, said hard bodies are disposed on said circular shoulder of a roll shell such that said hard bodies are placed axially and radially against said circular shoulder of the roll shell and are movably assembled with the roll shell.

Abstract: An impact hammer mountable to the drum of a rotary crusher employs an attachment bolt having a tapered head which is wedged into a tapered socket in the impact hammer body. A “supernut” is used to secure the bolt to the rotary drum. The supernut is tightened against the rotary shear head until it is snug. Then, threaded locking posts, which pass through the periphery of the supernut, are tightened repeatedly, thereby applying a great deal of tension the bolt shank and effectively stretching it. Any shocks applied to the impact hammer will drive the tapered head of the bolt deeper into the socket of the hammer body block, resulting in the maintenance of a secure hammer-to-drum union. The hammer body also has tungsten carbide chips embedded in a hardfacing material that is applied to the wear surfaces of the hammer.

Abstract: A cutting tool for attachment to the leading area of a base is provided. The cutting tool includes a holder base having two substantially parallel cutting teeth extending from the holder base, the cutting teeth each having a cutting edge and an opening between the teeth. The cutting teeth define first and second cutting paths. The cutting teeth impact and cut asphalt shingles, and funneling surfaces of the teeth funnel the cut shingle material toward and through the opening, and into the path of the rear cutting member which cuts the material a second time. Thus, asphalt shingles are processed more efficiently, thereby creating less frictional heat and avoiding melting of the asphalt shingles.

Abstract: A replaceable tooth arrangement for use in grinding discs such as used in wood hoggers and comminuting equipment. A preferred tooth arrangement includes two end to end adjacent tip portions, or a tip portion end to end with a complementary base portion. The contacting faces of the portions are preferably tapered so that tightening together creates a resultant outward movement which tightens them against the walls of a retaining aperture in a disc or disc section. Alternatively or additionally a connection element interacts with a wedge keeper which causes a similar outward component in the keeper and tip portion, tightening them against the walls of a retaining aperture, as the connection element is tightened.

Abstract: In a comminution rotor for producing wood chips comprising a rotor shaft which has an associated rotor element, the rotor element has associated therewith individual web elements which at least partially revolve and are axially spaced apart from one another and into which blades are inserted.

Abstract: The present invention relates to a disk section (1) for use in the construction of a grinding disk (10) such as may be used in wood hogging, chipping, or grinding apparatus. The disk section (1) is associated with a substantially wedge shaped retaining segment (30) which is positioned near the circumference of the assembled grinding disk(10), and preferentially overlaps at least part of two adjacent disk sections (1) thereon. The arrangement is such that tangential type impacts acting on a disk section (1) results in at least partial energy transmission to the retaining segment (30) and its connection (38, 39) to a hub (9).

Abstract: In one aspect of the invention, a cone crusher comprises a crushing surface comprising a conical head and a concave bowl. At least one of the head or bowl comprises a segmented wear liner wherein at least one segment of the wear liner is held in place by compression.

Abstract: A rotary drum having a cutter extending outward from the outer diameter of the rotary drum. The rotary drum further includes a sleeve. The cutter is retained in a position relative to the drum by at least one block having a surface that wedges the cutter and/or interconnected member against the sleeve.

Abstract: The invention relates to a composite milling roller, produced by casting, comprising peripheral inserts of a high wear-resistance and high hardness material, sealed in a ductile material on said casting. The roller comprises first zones subject to high wear and second zones subject to low wear, characterised in that said first zone of said roller comprises inserts on the peripheral face thereof with adjoining parts and, in said second zone, a non-adjoining part. The gap between the non-adjoining parts is filled with said ductile material of the cast matrix permitting an adequate mechanical anchoring of the inserts.

Abstract: In order to provide a tubular mill which is lightweight and easy and inexpensive to manufacture, the partial lengths of the tubular mill shell each are screwed together from segments which are distributed around the circumference and are made of thin-walled sheet-metal material, wherein rigid flanges are integrally formed onto the abutting sides of adjacent segments, in particular by folding the edges of the sheet-metal, and the flanges, which come to be positioned in the longitudinal direction of the mill tube, of adjacent segments are screwed to one another, and rigid flanges are to be integrally formed onto the two other sides, positioned opposite one another, of the segments, likewise advantageously by folding the edges of the sheet-metal, and the flanges, each joined to form a flange ring, of adjacent partial lengths are clamped to one another by means of clamping elements.

Abstract: In one aspect of the invention, a cone crusher has at least one crushing surface disposed on either a cone and/or an inverted bowl of the crusher. The crushing surface has at least one insert having an impact head with a stem protruding from a base end of the head. The stem has a smaller cross sectional thickness than the head.

Abstract: A percussion tool for comminuting materials, in particular wood waste materials, having a beater head and a shank, wherein a cutting insert with an upper cutting edge extending transversely with respect to the cutting direction is fastened on the beater head. If the cutting insert has at least one first cutting element and at least one second cutting element, and if a free space in the shape of the upper cutting edge is arranged on the beater head in the cutting direction behind the cutting insert, then the cutting elements are thus supported over a greatest possible surface and are connected with the beater head. It is thus possible to transfer greater forces into the beater head without it being broken off.

Abstract: A beater for a rotary shredder comprises an oblong base body with a pivot bearing adapted for pivotal connection of the beater to a rotor. A cutting head is formed with protruding cutting edges on opposite ends supported by the base body via the support surface. Complementary interlocking structures are provided by the support surface on the support surface and the cutting head. A releasable connection passes through the complementary structures connecting the base body with the cutting head. The complementary structures are provided by a recess formed in the support surface of the base body and a thereto complementary projection of the cutting head.

Abstract: A multi-functional tool assembly for a waste processing machine includes waste reducer to reduce waste material. The multi-functional tool assembly also includes a single tool to support the waste reducer. The tool includes a head, a fan, and a shaft integrally formed therein. The fan is disposed radially below the waste reducer to aggressively output reduced waste material from the waste processing machine.

Abstract: A milling tooth body for a comminution machine has a working side, oriented in a working direction; a flange side detachably connected to a milling tooth holder of the comminution machine; a tooth tip on the side of a recess; and a base at an end of the tooth body facing away from the tooth tip. A cutter device is in the recess. The flange side on the tooth body is opposite the working side. An entire side of the tooth body, which is oriented in the working direction, is the working side. The tooth tip projects away from the flange side in the direction of a longitudinal axis of the tooth body, perpendicular to the working direction. A first section of the tooth body projects away from the flange side in a direction parallel to and opposite the working direction.

Abstract: A tooth construction for a mineral bear, the tooth construction including a tooth shaped support body covered by a shell which defines the outer shape of the tooth construction, the shell being composed of a plurality of covers which are fixedly secured to one another and/or to the support body by welding to define a unitary tooth construction the support body having a front face and an opposed rear face and the plurality of covers including at least a front cover which is weldingly secured to and seated in face to face contact with the front face of the support body and a separate rear cover which is weldingly secured to and seated in face to face contact with the rear face of the support body.

Abstract: The present invention provides an apparatus for use on a roof or the like which incorporates an insulation material. The invention allows workers to shave the insulating layer to smooth, remove high spots, or create slopes, valleys or sumps, in order to achieve positive slope for water drainage. As part of the invention, there is provided, an apparatus for milling the surface of a low slope substrate, comprising a milling device comprising a cylindrical tubular structure having an outer rotatable milling surface, said surface positionable adjacent said substrate and drivable in a rotary motion to mill the surface of the substrate; a milling device support upon which said milling device is mounted for movement in a milling direction; a mounting assembly for mounting said milling device to said support; said mounting assembly including means for adjusting the angle and depth of engagement of said milling surface to said substrate.

Abstract: A forage conditioner for conditioning cut crop material from a forage harvester includes a fixed bottom fluted roller carried in end housings and a top fluted roller which is pivotally mounted on the housings by a linkage pivotal relative to the housing about an axis lying in a plane at right angles to the roller axes so that the top roller is liftable from crushing position against the bias of a spring extending along the top roller. Flutes on the rollers are arranged with a first surface on one side which extends substantially radially outwardly to an apex and a second surface which has a first portion parallel to a tangent of the roller and a second portion inclined inwardly to the roller surface at an angle significantly less than 90 degrees. The bottom roller is arranged with the first surfaces leading to carry the crop into the area between the rollers and the top roller is arranged with the first surface trailing.

Abstract: The present invention concerns a method for fixing a knife in wood chipper apparatuses over the whole knife length between two steady surfaces. The fixing force is developed by means of a roller chain located between two counter surfaces and reversing its direction at each of its couplings, the roller chain having stationary end rollers and intermediate rollers at the couplings, the intermediate rollers rolling during the press movement in the longitudinal direction of the chain. An external force is applied to the roller chain, the force changing its direction at the touching points of the rollers, so that the force applied to the roller chain affects to multiple points of the counter surfaces thus forming a prominent total pressing force.

Abstract: A comminuting striker assembly for mounting on a rotor of a comminuting apparatus comprising: a striker having first and second opposed faces, the first face defining at least one cutting edge, and a striker retainer, the striker and striker retainer defining cooperating primary support surfaces and cooperating alignment components.

Abstract: A cutting tool holder, a cutting bit, and a retainer maintaining the cutting bit at a prescribed position relative to the tool holder. The cutting bit is received in a slot located in a first lateral surface that extends through the top surface. The retainer is received in an opening included in the first lateral surface that intercepts the slot. The retainer includes a planar tapered surface that contacts an upwardly and laterally facing oblique surface on a lower end of the cutting bit to hold the lower end of the cutting tool in contact with a lower surface of the slot.

Abstract: An assembly suited to the lathing of cylindrical workpieces, such as photoreceptor blanks, includes a first drive system which rotates an associated workpiece about an axis of rotation. A machining tool machines a circumference of the workpiece to generate a strip of material. A cutting apparatus cuts the strip of material into sections. The cutting apparatus includes first and second rotatably mounted members which define a nip therebetween. A first of the rotatable members carries a cutting member on a peripheral surface thereof. A second drive system rotates the first and second rotatable members. The second drive system may be adjustable whereby a circumferential speed of the rotatable members can be matched to a circumferential speed of the workpiece. A transverse speed of the cutting apparatus may be matched to that of the machining tool.

Abstract: A shredding apparatus includes a shredding drum capable of quickly and effectively clearing large tracts of land. Several cutter blocks are positioned in axial rows across the periphery of the drum and are secured to the drum by welding. The blocks in each row are evenly spaced from one another and may be offset from the axial direction of the drum by angle of between about 4°°and about 10°. Each of the blocks includes a cutter tooth. Each tooth includes a shank that is removably anchored in a hole in each block. The teeth are typically reinforced with an extension projecting back from the face. The blocks are placed around the drum to enable the teeth collectively to fully sweep the ground surface during each revolution of the drum.

Abstract: A mulcher apparatus includes a tractor and a mulcher unit provided to the tractor. The mulcher unit includes a tooth assembly with a holder and a cutter element with a cooperating notch portion and cross bar arrangement. The notch portion can be retrofit to existing holder arrangements. The cutter element may include various features, to enhance cutting efficiency. For example, the cutter elements may include a double-ended structure, angle tab portions at each corner portion, carbide coatings, a pair of tip portions at each end with a space therebetween, and/or a generally H-shaped configuration.

Abstract: A tire size reduction/wire separation system comprising a drive shaft; a plurality of rotors mounted on the drive shaft, each rotor having axial slots with a rotor mounted knife removably secured within each slot; and an independent housing supporting the drive shaft and rotors. The independent housing has a central region with stationary knives. The roots and crests of the stationary knives are matingly oriented and respect to the roots and crests of the rotor mounted knives The independent housing also has lateral regions including an annual wear ring vertically secured to the axial ends of the rotors. Each lateral region also includes a wear liner with a circular opening with a diameter greater than the exterior diameter of the wear rings.

Abstract: A cutterhead having a drum surface with a series of knife retainers distributed about the surface. The longitudinal extension of the knife retainers defines an angle ? with the axis of rotation of the cutterhead, and a knife is mounted to the knife retainer. The knife is configured such that a cutting edge of the knife extends parallel to the axis of rotation.

Abstract: A rotary drum having a cutter extending outward from the outer diameter of the rotary drum. The rotary drum further includes a sleeve. The cutter is retained in a position relative to the drum by at least one block having a surface that wedges the cutter and/or interconnected member against the sleeve.

Abstract: A shredder apparatus and method for shredding wet chip materials in which the shredder utilizes a shredder mechanism having a shaft attached to a frame, a bearing assembly disposed on the shaft, and a rotatable rotor disposed on the bearing assembly. First shredder members are attached to and rotatable with the rotor, and cooperate with second shredder members attached to the frame to shred wet chip materials fed into the shredder apparatus.

Abstract: A striking tool for comminuting materials, particularly waste wood, having a shank and a chisel head, wherein a cutting insert is fastened on the chisel head. For an extended service life, along with an improved comminuting output, the cutting insert has at least one first and at least one second cutting element and the first and second cutting elements are arranged one behind the other in the cutting direction.