Abstract: A dicing element assembly comprises a dicing element having multiple elements defining multiple openings through which food may pass and a management tool having multiple projections sized to be received by the dicing openings, with at least some of the projections having a coupling element for releasably coupling the dicing elements when the projections are received within the dicing openings. When the projections are received within the dicing openings, the coupling element couples with the dicing element and a user may move the dicing element by moving the management tool without touching the dicing element.

Abstract: The present invention provides a pulverizer of a food waste treatment apparatus. The pulverizer of the present invention includes a main body, a pulverizing screw and an exhaust channel unit. The main body has a hollow space therein. The pulverizing screw includes a rotating shaft which is installed in the main body so as to be rotatable, and at least one drive blade which extends from the rotating shaft. The exhaust channel unit has an annular shape and is coupled to the upper end of the main body. An intake hole and an exhaust hole are formed through the outer surface of the exhaust channel unit. Furthermore, a cover may be removably coupled to the upper end of the exhaust channel unit.

Abstract: The invention refers to a comminution device comprising at least one comminution cylinder supported rotating in a machine frame with at least one comminution tool arranged on it, and at least one counter cutter interacting with the comminution tool, and at least one sieve device for the comminuted material the housing of which encircles the comminution cylinder at least partly, the sieve device and the counter cutter forming a common structural component. The invention is characterized in that the counter cutter is designed like a plate and has recesses designed corresponding to the shape of the comminution tools of the comminution device.

Abstract: A shaped opening is provided in the screen apparatus of a grinder. The shaped opening helps accumulate, gather and congregate materials that have not been reduced sufficiently in size. The shaped opening is located on the trailing edge of the screen opening. By being located on the trailing edge, lodged materials are urged into the shaped area during the grinding function. As more lodged materials are urged into the shaped area, the materials are congregated sufficiently for the cutters to engage the material and pull it back into the grinding chamber (and out of the screen).

Abstract: A milling apparatus comprising a radially symmetrical sleeve having an axial passageway with an upstream inlet and a downstream outlet or vice versa, a radially symmetrical rotor located within the sleeve, one of the rotor and sleeve being rotatable relative to the other, the diameter of the rotor being less than the diameter of the sleeve at each axial position to define an annular passageway between the rotor and sleeve, one or both of the surfaces of the rotor and sleeve having formations adapted to increase the surface area encountered by particles in a fluid flow from the inlet to the outlet.

Abstract: A portable rock crusher and scarifier for in-situ and on-site crushing, milling, grinding and preparation of road beds having a crusher frame defining a crusher channel journaling a reversibly rotatable arbor carrying plural automatically centering tooling implements in symmetrically spaced V-shaped axial keyways and a power pack releasably attachable to a road maintenance vehicle. An anvil weldment channel defined by spaced apart strongbacks communicates with the crusher channel and carries an adjustably positionable anvil weldment carrying two vertically spaced adjacent anvils proximate the arbor. A canting mounting structure provides attachment to a variety of road maintenance vehicles to provide carriage, support and movement. Milling implements may be installed on the arbor for grinding surfaces at depths below the crusher frame, and the crusher frame and power pack may be attached to a base for stationary operation.

Abstract: A rotary grinder having a cylindrical drum that includes a cylindrical surface. The cylindrical surface defines two holes. The drum receives opposite ends of a through-member at the two holes such that the opposite ends of the through-member comprise hammers when the cylindrical drum is rotated. A single retaining member is used to secure all of the through-members to the drum.

Abstract: A waste disposal apparatus has a cutter apparatus with angled teeth. The cutters may be disposed in a passage of a housing having an inlet and an outlet. The cutter apparatus has a stationary cutter and a pivoting cutter which pivots with respect to the stationary cutter. The stationary cutter has a plurality of teeth intermeshing with a plurality of teeth on the secondary cutter as the secondary cutter pivots. The teeth of the stationary and pivoting cutters have edges that extend towards one another at an angle with respect to a traverse direction perpendicular to a longitudinal axis such that the teeth meet at an angle. Each edge has a leading edge which meets first to concentrate cutting force at a point along the edge. The force moves along the edge from the leading edge to a trailing edge. A drive means rotates the pivoting cutter. The waste disposal apparatus may be a water powered waste disposal apparatus.

Abstract: A mechanical triturator for biological material comprises a cylindrical housing defining a chamber in which a cutting member constituted by a perforated plate is disposed. A rotor member, mounted for rotation in the chamber, has a screw which cooperates with the cutting member in order, as a result of its rotation, to supply the biological material into contact with the cutting member and to cause the trituration thereof.

Abstract: A hammermill having a polygon profile screen which provides for improved hammer impact and crushing efficiency. Particles in the working zone of the hammermill tend to be accelerated in the direction of hammer rotation. This acceleration lessens the speed differential between the hammer and the particle, which lessens the impact force and crushing efficiency. The polygonal screen inhibits this acceleration of particles in the working zone, due to flow interruptions caused by its irregular shape, thus increasing the particle-to-hammer speed differential and crushing efficiency.

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 regrind deflector for an apertured screen in a hammermill has a plate extending along substantially the entire length of the screen and having a straight surface smoothly blending to a curved surface, the straight surface beginning at an inner surface of the screen and substantially tangent thereto and extending outwardly to the curved surface which curves back inwardly to the inner surface of the screen and intersects therewith at an angle of less than 90 degrees. The number of deflectors required depends on hammermill size and operating conditions as well as characteristics of the feed material to be processed.

Abstract: Method for the manufacture of flakes from chips and apparatus for carrying out the method. The worn, in use, blade portions of a strip-steel knife are exchanged continuously or periodically with sharp strip-steel knives during the flake manufacturing operation. The feed of the strip-steel knives is preferably time-dependent and/or dependent on the energy consumption of the apparatus. Disposed longitudinally of the knife-ring are one or several magazines for supplying or/and receiving the strip-steel knives.

Abstract: A roll crusher for discarded storage batteries or other types of bulky scrap has two rotors provided with axially spaced-apart annuli of teeth which cooperate with rows of teeth provided on a grate normally adjacent to the undersides of the rotors. The grate is pivotable about an axis which is closely adjacent to, parallel with and disposed at a level below one of the rotors so that it can assume an inoperative position in which it extends substantially vertically downwardly and each of its sides is readily accessible for cleaning, replacement or inspection of its teeth. The teeth of the grate are disposed in rows and each such row of teeth is integral with a discrete plate-like carrier which is removably inserted into the frame of the grate so that it can be expelled or withdrawn if the treated material is not readily detachable from the teeth of the grate while the grate dwells in the inoperative position.

Abstract: Method and apparatus for the manufacture of chips from mineral, vegetable or embrittled materials. In the method the stationary wear plates and striking plates when worn from use are replaced during ball mill operation either continuously or periodically, either with or without pressure plates for the striking bars, and with different feeding speeds. The advance, or feeding, of these plates occurs in a time-dependent and/or energy consumption dependent manner. The apparatus includes a conventional beater mill equipped with a vertical or horizontal rotating beater wheel which has arranged on one or both sides of the stationary crushing path several magazines for storing wear plates and striking bars. The replacement of the wear plates and the striking bars is done by suitably constructed slide members.

Abstract: The present invention is directed to a method and apparatus for separating coal from impurities, which comprises a first and second tank including drag conveyor means and agitation means for the combination of saturating a raw mass containing coal and impurities, dispersing the impurities in to water, separating the coal from the impurities and flowing the mass from the front of the tanks to the rear of the tanks. A crusher as arranged between the tanks through conveyor means for transferring the mass between from one tank to the crusher and from the crusher to the other tank. The mass from the second tank is conveyed in to a separator pan which includes a separator plate, the separator plate having a configuration and being located within the separator pan at a position, so that an upper flow portion of the mass having a lower specific gravity passes thereover, and so that a lower flow portion of the mass having a higher specific gravity passes thereunder and out a hole in the bottom of the separator.

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: In known processes and known apparatus for mechanical separation of a combination of meat and bone into useful fractions, the combination is conveyed as by a screw through a screen, which constitutes a portion of an elongated cylindrical conduit, and softer components are expressed through the screen, while harder components are contained by the screen.

Abstract: A shredder for reducing scrap materials such as scrapped automobiles to pieces of a smaller size includes a shredder housing having an inlet and an outlet, rotary hammer means positioned in said housing, cutter means, means for rotating said hammer means to coact with said cutter means to reduce the material to smaller pieces, and an improved discharge grate positioned across said outlet through which such pieces must pass to leave the housing, said improved discharge grate comprising a plurality of grate segments secured within a frame which can be readily opened and reclosed so that a grate segment can be replaced. In a preferred embodiment, the outlet and the grate are located in the end wall of said housing about 180.degree. from the inlet.

Abstract: In a process and apparatus for the mechanical separation of a combination of meats and bone the material is conveyed by a feed screw through a conduit having at least a part of its wall formed as a separator screen. The screw moves the material between its lands in a manner such that it is pressed radially outwards against the screen with a minimization of shear along the screen. The screen is constituted by a plurality of closely spaced plates which flex under the effect of the outwardly operative pressure to facilitate passage of the meat fraction therethrough while retaining the boney fraction on the inner wall.

Abstract: Properly tempered sorghum or other cereal grain is continuously metered by an auger in an axial direction into the center of the interior of a rotor where it is acted on by a flared textured cone to cause discharge into an independently rotating spreader having vanes which assure uniform distribution of the grain along the entire length of the interior of the rotor. The interior of the peripheral wall of the rotor has circumferentially-spaced axially-extending elements which guide the grain toward axial slots in the peripheral wall and which lead to a peripheral space between the rotor and a perforated stator wall where the grain is acted on by axial bars to promote cleavage of the grain and perform concomitant decortication and degermination, converting the endosperm tissues into particles of a desirable size and shape, free from attached seedcoat and germ tissues so that said particles are thereafter readily separable by known milling methods.