Abstract: A land preparation implement includes a rotatable drum assembly that includes a tool assembly. The tool assembly includes a tool holder and a tool. The tool includes a plurality of cleats. The tool holder includes a plurality of cleat supports. The cleats and the cleat supports cooperate to facilitate releasable coupling of the tool to the tool holder.

Abstract: A system and method of processing bone is disclosed. A tissue separator is utilized to separate tissue comprising at least one of muscle, periosteum and connective tissue from bone in a safe, sterile and efficient manner. In one aspect, the particle reducer can include an impeller positioned with respect to a cutting surface on a drum. At least one of the impeller and the drum is rotated by a power source such that harvested tissue frictionally engages the cutting surface. In another aspect, a source of pressurized fluid can be directed at tissue to separate bone from non-bone tissue.

Abstract: A modular floorstanding centrifuge comprising at least the following modules, the modules being preassembled, coherent components capable of being mounted as a whole, including a floor plate, a wall module adapted to be mounted on the floor plate together with two side wall elements capable of being attached to opposing edge regions of the floor plate, and a ceiling element adapted to interconnect the side wall elements, and a guard ring module adapted to be mounted on the wall module and comprising a guard ring attached to at least one side wall element and/or a ceiling element, wherein the ceiling element and the at least one side wall element are joined together and the at least one side wall element is mounted on the ceiling element such that it is capable of being attached to an edge region of the ceiling element pertaining to the underlying wall module.

Abstract: The present invention relates to a rock crushing apparatus. Known apparatus operate on the distinct principles of compression crushing (compression between moving surfaces) or impact crushing (compression via high velocity rock impacting a surface). Both types of apparatus have disadvantages in the quality of the crushed product, energy inefficiency or high rotor wear rates. The apparatus (1) comprises a rotor (2) comprising a number of reciprocating (11) and fixed compression crushing elements (12, 13) to compression crush the rock between adjacent reciprocating and fixed surfaces. The positioning of these elements (11, 12, 13) within the rotor performs an arresting action on the rock to limit the maximum radial velocity (Vr) the rock attains before its ejection from the compression crushing elements (11, 12, 13) for impact crushing on an adjacent surface. In this way the disadvantages of compression and impact crushing are minimized to produce a superior product.

Abstract: An herb chopper includes a bottle, an upper chopper, a lower chopper, an agitator, and a dust cap. The bottle can hold a herb to be ground. The upper chopper is positioned inside of and opposite to the lower chopper and can rotate with respect to the lower chopper. The bottle is positioned on the upper chopper partially inside of the lower chopper. The bottle is rotated relative to the lower chopper causing the herb leaves to be chopped by the upper and lower choppers and dispensed out of the chopper through dispensing holes formed in the lower chopper.

Abstract: Comminution apparatus is described which is tailored for the processing of green, soft, and fibrous waste. Inner and outer comminution drums bear projecting macerating features which can progressively interact to provide a shearing action on material on waste within the outer comminution drum. Screening apertures on the outer comminution drum allow for the exit of comminuted material.

Abstract: To provide a mill that can greatly reduce noise during operation and can also contribute to greater device compactness. The mill is provided with: a tubular drum body configured in a manner so that a material to be milled introduced from one section can be discharged from another section; a central shaft that penetrates within the drum body in the direction of tube length thereof; and a plurality of milling plates that are attached at a predetermined interval in the axial direction of the central shaft, and that compartmentalize the interior space of the drum body in to a plurality of milling chambers. The drum body and/or the milling plates rotate, and the mill does not have a milling medium that mills the material to be milled by contacting the material to be milled while rolling within the drum body.

Abstract: An apparatus and method for accelerating food product in order to cause the product to be stretched aligning the fibers of the product.

Abstract: A grinding device includes a mobile grinder group having openings for dispensing a ground product and a fixed counter-grinder having a central hole the surface of which comprises a grinding surface. The grinder group has a casing and a grinder which can be fixedly coupled, the grinder having a grinding surface that is inserted inside the central hole of the counter-grinder and that cooperates with the opposing grinding surface of the counter-grinder when grinding a product. The grinder group is arranged straddling the counter-grinder with the casing being arranged outside the counter-grinder. The casing can rotate with respect to the counter-grinder and is axially mobile with respect to the counter-grinder between two or more reciprocal adjustment positions. The grinder and the counter-grinder are made in a substantially rigid material and the casing is made from a substantially flexible material.

Abstract: The invention relates to a method for the comminuting of natural or synthetic mineral products having a size of 10 nm to 30 mm, which are obtained from the upstream process in pre-comminuted form for example in a roller mill for inter-particle comminution, wherein these solids are further comminuted in a working process initially dry then wetted with liquid and in this liquid are comminuted so as to obtain a suspension that can be pumped, which suspension is subsequently ground to the desired final fineness by means of agitating mills.

Abstract: A vertical shaft impact crusher having an upright main frame; a hollow shaft journalled within and suspended by an antifriction bearing supported by a flexible supported housing; an impeller attached to said hollow shaft similar to gun lock means. A second frame within said main frame is elevated and lowered hydraulically and supports an annular rock chamber. Power means to rotate said hollow shaft. Hydraulic means to tighten drive belts from power means to shaft and to relax said belts; Hoppers above and below said shaft and impeller. A static tube within said hollow shaft delivers rock into impeller which propels rock at very high speeds; rocks are shattered by impact of rock against rock resulting in a finely crushed product; all crushing is contained within said chamber. Product falls into lower hopper and is conveyed away.

Abstract: An apparatus for wiredrawing vegetables or cutting them into three dimensional shapes, comprising a base frame, a first container supported by said base frame for collecting residues, a drum mounted for rotation about an axis on the surface of die cells, a vegetable feeding means supported on said base frame and arranged above said drum to adjustably feed vegetables into said cutting means, pressing means located downstream of said feeding means with respect to the direction of rotation of said drum, and designed to wiredrawing said vegetables into said die cells, clearing means arranged downstream of said pressing means and designed to force out into said pressing drum any wiredrawn vegetables held in said die cells, and a second container supported by said frame underneath said drum and arranged to receive wiredrawn vegetables present in said drum.

Abstract: A ring cutter that cuts chips with a ring of knives. Two carrier rings enclose a collar of knife packets. Each knife packet includes a knife clamped between a knife carrier a clamping plate with a cutting edge of the knife pointing to the inside of the ring. Fastening screws are threaded through a borehole in the clamping plate and an opening in the knife and are screwed into a threaded borehole in the knife carrier. One of the fastening screws is configured as an alignment pin.

Abstract: A knife ring machining tool for machining chips, with a knife ring comprising a crown of knife packets as well as two carrier rings carrying the packets, which rings are arranged on the ends of the knife packets. Each knife packet includes a knife that is inclined against the radial direction and whose cutting edge faces inward, with a rotor arranged coaxially with the knife ring and surrounded by the latter. The rotor includes a plurality of rotor blades that carry strip-shaped cleaving knives on the outer ends, which knives for their part run parallel to the rotor axis and extend over the width of the rotor. Each cleaving knife is fastened by screws to the associated rotor blade, while each screw connection comprises a wedge element that tapers outward in radial direction in a wedge shape, as viewed in a section vertical to the rotor axis.

Abstract: This invention provides the mill wherein soft stones in mountain sand or mortal which attaches to debris surface of concrete wastes can be selective removed certainly without excessive pulverization of the other components and recycled aggregates that can be used as concrete aggregates can be recovered from these raw materials.

Abstract: A chip slicer has pivotably mounted chip-forming knives located so that the knife edges are in a plane which passes through the axis of rotation of the knives, as well as through the axis of pivoting. Another improvement is to employ a knife which has a blade which is bent at an obtuse angle to form a first and a second leg. The first leg has a cutting edge and an upper surface which defines a chip path. The second leg is bent with respect to the first leg in the direction of rotation of the knife ring. The knives are mounted to the ring by clamping wedges which are bolted to the knife ring so that they overlie the second leg and so clamp the knife blade by the second leg to thereby substantially remove obstructions from the chip path. A further improvement has chip depth gauges which are positioned in front of the knife edges. The depth gauges have trailing edges in the direction of rotation which extend substantially parallel to the upper surface of the blades.

Abstract: An apparatus for cutting cuttable pieces, especially of animal or vegetal origin, into prismatic, preferably cubical shape, includes two concentric knife rotors, inner and outer knife rotors. The inner knife rotor carries a first cutting tool for cutting the cuttable pieces into slices and strips. The first cutting tool includes a plurality of plate-shaped knives and a plurality of sets of gate forming knives positioned in passage channels formed in the inner knife rotor. Each set of gate forming knives is positioned adjacent to and upstream of one of the plate-shaped knives. The gate forming knives first simultaneously cut the cuttable pieces into a plurality of strip sections. The associated plate-shaped knife then slices the strip sections to form individual strips, which are led out of the passage channel. The outer knife rotor carries a second tool, a plurality of plate-shaped knives, that cross cuts the strips coming out of the passage channels according to the desired length.

Abstract: A crushing apparatus for waste material comprising a housing and a drive shaft for driving counter-rotating rollers which mesh with each other and which are hollow and open at one end. The rollers are fitted with cutter elements spaced at intervals around the outside and have cavities between the cutter elements that open into the hollow interior of the rollers.

Abstract: A mill roll for pelletizing material having first and second counter-rotating, cylindrical rollers, the second roller having a solid exterior at its central portion, a hollow core and a series of perforations at each end. The first roller has a solid exterior. The rollers can be heated. Material to be pelletized is placed in the central portion of the nip formed between the rollers and as the rollers rotate, the material is spread outward toward the perforations where the material passes through such perforations to be cut off by a knife disposed within the second roller's hollow core. Also disclosed is a method of pelletizing material utilizing such mill roll.

Abstract: Comminuting apparatus comprising a housing, a rotatable spindle, first and second members each having a hole through which the spindle passes, the first and second members each also having at least one additional hole extending therethrough, at least a portion of at least one of the first and second members fitting snugly against the housing. Comminuting apparatus comprising a rotatable spindle, first, second and third members each having a hole through which the spindle passes, the first, second and third members each also having at least one additional hole formed therethrough, the first member abutting the second member, the second member abutting the third member. Comminuting apparatus comprising a rotatable spindle, a first member having a hole through which the spindle passes, the first member also having at least one second hole extending therethrough, and a spacer splined to the spindle, the first hole of the first member being rotatably mounted on the spacer.

Abstract: A drum assembly for wood chip slicing machines in which the slicing blades are clamped at the discharge openings in a rotary drum between clamping plates and the trailing ends of combination plates have wear plate and clamping functions. Studs anchored in the combination plates pass through the drum, and some of them additionally pass through the clamping plates so that when nuts on the studs are tightened, the combination plates, clamping plates, slicing blades, and the drum are secured together. The clamping plates have feet which engage the drum to serve as a stop to keep the cutting edge of the blades at a predetermined setting. The studs are preferably sloped in the trailing direction from their inner ends.

Abstract: Apparatus and a process for use in preparing pulp for papermaking and particularly the preparation of wood chips including a rotary anvil with vanes forcing wood against a cutting knife and an infeed chute directing wood into the radial interior of the rotary anvil positioned to center the wood with respect to the anvil vanes with an additional stationary guide to center the infed wood and stationary guide deflectors on the anvil vanes further directing the wood toward the center of the anvil vanes for centering the load axially on the rotary anvil.

Abstract: A method and mechanism for slicing oversize wood chips including a housing, a cylindrical drum rotatable within the housing, an anvil rotor rotatable within the drum and having a plurality of arms with a blade mounted on each of the arms to move chips along the inner surface of the wall of the drum, said drums having slots therein with knives adjacent the slot so that chips are cut as they are moved along the wall past a slot, and the knives and blades at a relative angle to each other with either one or both of them being at an angle to the axis of the drum and rotating the drum within its housing and rotating the anvil rotor at a slower speed so that the chips are pushed against the inner wall of the drum by centrifugal force and are cut by the scissor action between the blade and knife.

Abstract: An apparatus for collecting the flesh of fish comprising an endless belt for conveying a material and two rotatable hollow rolls for collecting the flesh of fish each having a multiplicity of flesh collecting holes in its peripheral wall and being closed at its one end and open at the other end thereof, the two collecting rolls being spaced apart by a distance in the direction of movement of the endless belt and held in pressing contact with the surface of the belt by separate contact pressure adjusting means individually, a scraping knife being disposed at the rear side of each collecting roll and adapted for sliding contact with the peripheral surface of the collecting roll.

Abstract: An improved macerator adapted to shred crop material and having an annular perforated die ring and a roller operative within the die ring to extrude crop material through the perforations as the die ring and roller are power-rotated. The roller is journalled on a pivotable arm which is interconnected with the macerator frame by a shearable linkage permitting the roller to shift to an inoperative position if a material overload or a foreign object is encountered. A lock is automatically effective to positively retain the roller in the inoperative position until the condition can be corrected.

Abstract: A process for grinding materials comprises driving a plurality of unground particles in a grinding zone in a predetermined direction, abruptly reversing the direction of motion of part of the particles in a subsequent grinding zone so that they impact with each other and reversing the direction of motion of the particles as they pass from one grinding zone to the next, until the size of the particles is reduced to the desired level. A grinder for carrying out such process essentially comprises first and second rotors, the first rotor being provided with a plurality of first perforate members and the second rotor being similarly provided with a plurality of second perforate members alternately arranged between each pair of first perforate members. The first rotor is rotatable in a predetermined direction, while the second rotor is rotatable in the opposite direction.

Abstract: A wood chip rechipping method and apparatus are provided wherein a slotted, cylindrical drum rotates about a concentrically mounted rotatable anvil rotor having a plurality of arms, each of which has a blade at its outer extremity. The drum and anvil rotor arms rotate in the same direction, but at different speeds. The rotating apparatus induces centrifugal force on the wood chips to position them against the inner periphery of the drum where the blades on the relatively faster rotating anvil arms shear off a chip slice having a predetermined thickness. This shearing action continues until each chip has been rechipped into slices capable of passing through one of the drum knife slots and into the discharge outlet.

Abstract: In a device and method for particulating conglomerated materials, and especially soil samples, a revolving drum is mounted for eccentric rotation about a vertical axis. A grating or screen comprises the cylindrical wall of the open ended drum. The materials to be worked are placed between the outer periphery of the drum and an arcuate wall mounted for pivotal movement with respect to the drum. The materials are then crowded by the movable wall into engagement with the grating of the revolving eccentric drum to break up the materials into particles of workable size. Hard matter, such as rocks or gravel, is segregated during the process. If desired, a row of fingers and/or a brush can be mounted for engagement with the drum to loosen accumulated materials from the drum during operation of the device.

Abstract: Apparatus carried on a self-propelled vehicle field processes alfalfa to obtain therefrom fiber and protein components and a deproteinized liquid component which is simultaneously applied on the field as the vehicle advances. A specially-designed macerator for shredding the harvested alfalfa is disclosed. The macerator includes a cylindrical die ring having an open end and a series of peripheral apertures through which the alfalfa is extruded by means of a pair of rollers mounted inside the die ring for rotation therewith. The die ring is rotatably supported in a frame, and the rollers are coupled to the die ring for rotation in synchronism. A shroud surrounds the periphery of the die ring to collect macerated alfalfa, and an impeller is mounted inside the shroud for displacing macerated alfalfa downwardly through an outlet in the bottom of the shroud.