Abstract: A blender includes a base on which a motor is connected and a plurality of ventilation holes are defined through a bottom of the base. An engaging collar is connected to the motor for rotating a blade device of a container mounted to the base. The heat generated from the motor is removed from the ventilation holes in the bottom of the base.

Abstract: A yard vacuum unit includes a deck including upper and lower housing members that form a discharge outlet and a nozzle operatively connected to the deck. An engine is, mounted to the deck and includes a drive shaft. An impeller assembly is used to draw yard debris in through the nozzle and out through the discharge outlet and is positioned between the upper and lower housing members. The impeller assembly includes an impeller plate, a hub fixedly connected to the impeller plate, and a plurality of fan blades each having first and second ends and first and second sides. Each fan blade first end is fixedly connected to the hub all along the first end and each fan blade first side is fixedly connected to the impeller plate all along the first side. In this way, a continuous airtight seal is formed along the entire first end of each fan blade with the hub and along the entire first side with the impeller plate. Each second end extends to the outer periphery of the impeller plate.

Abstract: The present invention provides a method and an apparatus for crushing and pulverizing tire chips roughly crushed to a size of 10 cm in length by completely separating to rubber components from iron components in a single crushing process. It is intended to extensively simplify the process to produce rubber powder from waste tires and to promote material recycling of the used tires. The method comprises the steps of catching the tire chips between monoaxial rotary blades 3 rotated within a casing 2 and fixed blades 4 and 4 fixed and arranged at opposed positions and maintaining a gap slightly larger than diameter of a piano wire 9 contained in the tires, rupturing only the rubber components without cutting piano wires and steel fibers, tearing and withdrawing rubber components by rotation of the rotary blade 3, and crushing while separating rubber components from iron components.

Abstract: This invention relates to an improved airflow hammermill assembly for grinding materials. More particularly, this invention relates to an improved airflow hammermill assembly for processing vegetable meals and cereal grains. The improved airflow hammermill assembly incorporates one or more diverging ducts communicating with the hammermill housing to provide a more uniform negative pressure within the housing. The improved airflow hammermill assembly allows increased throughput and energy savings.

Abstract: An improved grinding apparatus or hammermill utilizing retractable bars as a hammermill screen, or as a support to a conventional hammermill screen. The ability to retract these bars which make up the screen of the hammermill assembly reduces the down time associated with inspecting, replacing, and repairing the bars, and clearing jammed material caught within the screen. When the retractable bars support a hammermill screen, retraction of the bars allows the screen to drop down from the hammermill for repair and cleaning.

Abstract: A pulper device includes a vessel in which an annular flow can be generated. The flow acts upon a liquid-sold mixture located inside the vessel and effects a pulping of the same. The device also comprises a screening device for separating coarse materials from the suspension, whereby the screening device has the shape of a truncated cone. The truncated cone is provided with holes on the lateral surface thereof and can be mounted on the base of the vessel in such a way that the truncated cone points upward with the small circular surface thereof, and the lateral surface lies in an approximately tangential manner to the toroidal flow. The screening device is subdivided into different segments and these segments can be individually mounted from the external side of the vessel.

Abstract: In a housing for a comminution machine with tools, which are secured to a rotor supported in the housing and which form active wear parts, such as hammers, and an anvil forming a counter tool, as well as inactive wear parts in the form of interchangeable wear plates which are secured to the rotor and also to the inside of the housing, an opening for feeding the material to be comminuted and at least one grate forming another inactive wear part, an ejection door for discharging heavy parts as well as an impact wall segment facing the ejection door and also forming an inactive wear part, and housing sections which are arranged horizontally in at least one plane, wherein at least one of the housing sections can be pivoted outwards about at least one pivot point, there is provided that at least sections of the wear parts are attached to the housing with bolts secured to the respective wear parts and form zones according to the different wear characteristics of the comminution process, so that the wear parts which

Abstract: Size reduction machines including a screen holder that positions and secures a screen associated with the size reduction machine in place and also including an adjustable impeller for setting and changing a desired known gap between the size reduction machine impeller and frusto-conical screen.

Abstract: A comminuting apparatus includes a frame, a set of overlapping scissor rolls, a first drive motor, and a second drive motor. The frame has an enclosure with an entrance opening for receiving waste material. The set of overlapping scissor rolls is carried within the enclosure for rotation, including a first scissor roll and a second scissor roll. The first drive motor is coupled to the first scissor roll, and the second drive motor is coupled to the second scissor roll. The first drive motor is operative to drive the first scissor roll at a substantially variable operating speed. The second drive motor is operative to drive the second scissor roll in co-rotation at a substantially constant operating speed.

Abstract: A separating device for coolants or lubricants, containing chips, is described. This is provided with a supply line (11), a container (10) as well as a pump (20), which is connected with the container (10). The pressure side of the pump is connected with a discharge line (28). The pump, in particular, is an unchokable pump. A device (13), for comminuting the chips supplied, is disposed in the container (10).

Abstract: This invention relates to a hammer mill used for feed processing, food processing or chemical industries. The said hammer mill has a casing, a rotor arranged in the casing and is provided with several hammers, and a vibrating screen with an active power source located around the rotor. The vibrating parameters can be set for control. In the cross section of the rotor, the width of the screen in the horizontal direction is more than that in the vertical height and it is symmetrical at the left and the right.

Abstract: The present invention comprises a size reducing machine with a rotor having a plurality of hammers arranged to size reduce waste material upon impact. The rotor is contained with a tub that includes a tub floor for feeding the waste material toward the rotor. Located proximate to the tub floor is a gator plate with a serrated edge for initial material for sizing of the waste material.

Abstract: The present invention relates to a rotary grinder with an improved ram and screen. Rotary grinders of the present invention are, for example, used to grind plastic or wood to reduce the size of the material to a desired size. Material to be ground is placed inside a hopper and a ram is used to force the material toward the rotor having a plurality of cutters thereon. The ram does not have to ride in horizontal channels on the sides of the hopper so material does not interfere with or jam the ram. Further, a grooved screen may be employed wherein the screen has a plurality of V-shaped grooves therein in which the cutters travel. This permits the cutters to “clean” the screen so that ground material, for example, plastic, does not block the openings in the screen.

Abstract: An improved tub grinder includes a hammer mill having a swing diameter which is adjustable. The tub grinder includes: first and second sets of interchangeable hammers, the second set being shorter than the first; first and second interchangeable semi-cylindrical screen assemblies, the second screen assembly having a smaller diameter than the first; and a pair of shear bars and adapter plates. In a first configuration, the first set of hammers are mounted to a rotor assembly and have a first swing diameter. The first semi-cylindrical screen assembly is secured within a cylinder box in co-axial alignment and outwardly spaced relationship with the first set of hammers. The shear bars are mounted to the tub floor and extend across the sides of a floor opening in spaced relationship to the swing diameter of the first set of hammers to form a gap therebetween.

Abstract: A pulverizer/grinder configured, its principle embodiment, to process drilling mud having cuttings utilizing a shaft on a horizontal axis having multiple rotors emanating therefrom. The rotors are surrounded by a cylindrical housing having inner walls situated near the tips of the rotors, each rotor further including first and second pulverizing members. The upper portion of housing includes input ports for the ingress of cuttings, drilling mud, and fluid, the lower portion of the housing including a cuttings screen having the desired aperture size for the egress of appropriately ground cuttings, particles, and fluid. Included with the system is a specially designed lug which emanates from the inner surface of the upper housing unit, the lug configured to securely communicate with the upper edge of the cuttings screen, securely holding same in place and preventing the buildup of debris thereabouts.

Abstract: The invention relates to a kitchen appliance comprising a container and a housing accommodating an electric motor. The container comprises a bottom, a removable lid, and a bearing for supporting a tool which is drivable in the container by the motor. A filter can be placed in the container around the tool and can be filled with ingredients such as fruits or vegetables. After activation of the tool, liquids and juices are obtained from these ingredients which pass through strainer openings of the filter. According to the invention, the filter is held in a fixed position in the container during operation in that the filter is locked in between the bottom and the lid of the container. In a first embodiment of the kitchen appliance, the filter is locked in between the bottom and the lid of the container in that the filter has a length which substantially corresponds to a distance between the bottom and the lid of the container.

Abstract: In a method and an apparatus for manufacturing chips for a thixomolding-process injection molding machine, primary crushed pieces obtained by fragmenting and crushing metal alloy wastes are cut and fragmented by a chip manufacturing apparatus having fixed blades, rotating blades, and a screen so as to obtain chips, with the result that the surfaces are polished, and a powder is eliminated by forced exhaust air, thereby making it possible to manufacture the chips while preventing ignition and explosion.

Abstract: A bio-hazardous waste processor and optional encasement is described that uses a coolant such as liquid nitrogen to make the waste brittle in the hopper before crushing, keep the waste brittle in the down chute after crushing and also during shredding in the demolition chamber. After shredding, a fog of sterilant is used to disinfect the waste. The apparatus comprises an input hopper with a crushing wheel and dead plate towards its base to reduce the size of large particles, and a down chute which leads the crushed waste from the crushing wheel to a demolition chamber. In the demolition chamber, shredding is implemented by: one or more hammers and one or more commercially available off-the-shelf saw blades, the hammer(s) and saw blade(s) rotating in the same or opposite directions; or, one or more commercially available off-the-shelf dado saw blades, adjacent dados rotating in opposite directions.

Abstract: An apparatus and method for recycling gypsum wallboard is described and claimed. Gypsum wallboard is formed from a gypsum core sandwiched between two sheets of heavy paper. The apparatus has a crushing means to crush the gypsum core of the wallboard and shred the paper covering. A grinding means further pulverizes the gypsum into a powder and tears the shredded paper into pieces that are approximately one and one-half inch in diameter. The pulverized gypsum admixed with paper pieces can be collected and used in recycled wallboard. Optionally, a separator can be included in the apparatus which isolates the gypsum powder from the paper pieces. Methods for recycling gypsum wallboard using the claimed apparatus are also described.

Abstract: A waste substance is crushed and separated into a crushed waste metallic substance and a crushed waste non-metallic substance by the crushing in the fine adjustment in mm unit and striking by hammers, and then discharged out of a shredder through box-shaped spaces having an inclined plane of an inclined upper shredder damper rocking by the fine adjustment in mm unit of the shredder. Thereby the waste substance is crushed and separated securely and efficiently, and the crushed waste metallic substance in 2-5 mm unit and the crushed waste non-metallic substance can be manufactured in the state that they are valuable as articles of commerce and can be effectively utilized as resources. When the crushed waste metallic substance is supplied to a furnace, the melting speed can be improved and the fuel cost necessary for the melting can be saved. Also the invention contributes to prevention of abuses such as environmental pollution by soot and smoke and the contamination of the atmosphere.

Abstract: A striker assembly for attachment to the rotor lobe of a rotary hog for impact fragmentation, cutting and shearing action. The striker assembly includes a striker plate having a body portion attachable to the rotor lobe by means of screwthreaded connectors with the top portion of the striker plate extending radially beyond the rotor periphery. The striker plate has an offset ledge for receiving one or more striker bits which are clamped thereto by appropriate bolts and which include protrusions on the rear face thereof in engagement with mating recesses in the striker plate face. Each striker bit is symmetrical around a central longitudinal plane with opposed cutting edges running the length of the bit. The bit is removable and may be rotated 180.degree. allowing alternate use of the cutting edges. The bit includes forward faces adjacent the cutting edges which are disposed at an angle to the front and rear faces of the bit so as to provide an aggressive cutting edge.

Abstract: A shredder for brushwood and the like (FIG. 1) has at least one shaft carrying a helically arranged array of cutting discs surrounding the shaft. The discs are individually fixed on lugs which are generally radial to the shaft. As the brushwood is fed along generally parallel to the shaft axis it is impacted by the cutter discs, acting against one another where two parallel shafts are employed, or between the discs and a surrounding chamber wall if only a single shaft is employed. The shredded material is further fed and exhausted through a delivery passage by a current of air induced both by the discs and also by fan vanes carried by the shaft. The advantage of the discs as cutters is that if and when worn or blunted, each can be adjusted angularly on its lug to present a fresh portion of its periphery for action, without it being necessary to immediately replace or re-sharpen it.

Abstract: A wastepaper treatment method and system which combines the pulping and sorting in a pulping drum (10) with a following wet-strength processing, performed with high mechanical intensity, e.g., in a pulper (20). With the easily pulping paper materials being separated already from the drum (10) in a fines fraction (3), particular advantages result in terms of quality and economy.

Abstract: A system for processing plant material is provided which separates plant fibers from the woody portions of the material to produce a commercially desirable length of fiber and to grind the shorter woody portions that have been separated from the longer fibers to a desirable size which has found use in certain commercial applications. The current system is well suited to process the tough fibers of the North American strain of flax straw, and will also find utility in processing other bast fibers, such as jute, hemp, ramie, and kenaf.

Abstract: A rotary mill for reduction of ore to particles is described. The rotary mill comprises a primary reduction chamber, a secondary reduction chamber and an outlet chamber. Material entering the primary reduction chamber is deflected by an impact rotor, which shatters the material and sends the resulting particles into a plurality of shatter bars. The shatter bars further reduce these particles and deflect them back towards the rotor so that the reduced particles encounter newly shattered material, causing further attrition. In addition, the rotary mill includes an exhaust fan arranged to generate an airflow from the primary reduction chamber, through the secondary reduction chamber and into the outlet chamber. This airflow carries the reduced particles into the secondary reduction chamber wherein the particles are thrown against reduction means.

Abstract: The present invention relates to unique waste recycling machines possessing improved efficacy in recycling bulky waste materials to a recycled waste product. The feed for the machine is equipped with a floating stripper plate which scrapes adhering waste materials from a continuous metal apron feed. The device also includes a releasable cradle assembly which supports a striking bar and a screen positioned about a rotating drum equipped with impacting teeth or blades. When a damaging obstacle enters an impacting or fragmenting zone of the machine, a shear pin which maintains the cradle assembly in a fragmenting position will shear causing the cradle assembly to become dislodged to an inoperable or non-damaging position. The machine also includes impacting teeth which are dynamically balanced and positioned upon a rotating impacting drum so as to effectuate especially effective fragmentation of waste materials to a desired particle size.

Abstract: A granulator for separating the constituent parts of electrical cable containing relatively light-weight plastic covering relatively heavy electrically-conductive material. The granulator includes a first cutter for cutting the cable into short pieces and a second cutter for cutting the short pieces of cable into a still shorter length sufficient to detach the plastic from the electrically-conductive material to form a mixture of small pieces of plastic and electrically-conductive material. A vibratory sorter separates the mixture of plastic and electrically-conductive material, and includes an elongate, circular and spirally-extending track having a material inlet adjacent a bottom end thereof for receiving the mixture of plastic and electrically-conductive material for separation and a electrically-conductive material discharge slot adjacent a top end thereof for discharging electrically-conductive material.

Abstract: Apparatus for comminuting sheet metal or similar material, includes a striking tool rotatably supported about an axis; and an enveloping deck in the form of a grate assembly having holes formed therein or an abrasive plate assembly having depressions formed therein, with the enveloping deck interacting with the striking tool for crushing a material. The holes or the depressions are so arranged as to define a web structure which at least in direction of the axis has a pattern that deviates from a straight line.

Abstract: A machine for reducing materials such as logs, limbs, stumps and the like into small particles. A hold down and infeed roller in combination with a conveyor feeds the materials into a rotating rotor. The rotor has cutters mounted on its periphery and is rotated in a direction to produce an upward cutting action. The rotor partially reduces the materials into smaller particles. An anvil in combination with the rotor further reduces the particles into the desired size. A grate dictates the size of the materials to be discharged from the machine.

Abstract: An apparatus and system for processing the elastomeric component of a gum base or chewing gum product. Bulk blocks or slabs of elastomeric materials are conveyed to a housing with a rotary cutting mechanism. A feeding and metering mechanism controls the introduction of the blocks or slabs to the cutting mechanism. A lubricant feeding mechanism controls the introduction of lubricant to the housing for coating and lubricating the elastomeric materials. A cooling mechanism maintains the temperature of the housing and materials within a prespecified range. A screen or filtering mechanism controls the size of the ground-up pieces of material which are removed from the housing. Vacuum-conveyer systems convey the ground-up pieces of material to a storage hopper where excess lubricant is removed and then to a metering mechanism for selective introduction of the pieces of material to an extruder mechanism and/or gum or gum base manufacturing process.

Abstract: The hammermill includes a housing, a working chamber defined by a polygonal screen, an inlet to the chamber, an outlet and a plurality of free-swinging hammers attached to a driven rotor. Support brackets extend the length of the housing and mount deflectors for eliminating tangential motion of materials being comminuted in the working chamber in the region of the deflectors. Side doors mount screen carriages for movement toward and away from the doors. In a closed position of the door, springs bias the screen carriages into engagement with wear-linings and the support brackets. The doors are pivotal away from the housing for access to the screens and the interior of the working chamber. A bottom screen carriage is movable toward and away from the chamber for access to the bottom screen sections.

Abstract: An improved chipper shredder is disclosed having inwardly extending teeth affixed to the housing displaced from the discharge opening so as to provide additional shredding action.

Abstract: The present invention is an apparatus and a method of operating a grinder for chipping and shredding material into waste, the grinder including a generally cylindrical drum having an exterior surface with a plurality of pockets formed into the exterior surface. Within each pocket, at least one of a plurality of bits are removably positioned, with each bit having a base securable into the pocket providing an upper cutting edge portion of each bit that extends above the exterior surface. Each upper cutting edge extends outward in an arcuate curving shape from each side of the bit, forming a self-sharpening sharp outer edge for each side of the bit. Each pocket and removable bit has a center line that may be angled off-set with respect to a center line of the radius of the rotor drum, providing protrusion of the leading cutting edge of each bit above the exterior surface so that the leading cutting edges of the plurality of bits are placed in contact with the material to be chipped and shredded.

Abstract: A mill for reducing solid material into smaller pieces including a hammer member oriented for rotation and having a plurality of hammer pins coupled to the hammer member for fragmenting solid material. A cutting member is oriented for rotation and having a plurality of blades for cutting solid material. The hammer member is positioned proximate to the cutting member so that solid material processed through the mill is broken into smaller pieces. The hammer member has a plurality of blades that are positioned, one each between adjacent hammer pins. The hammer member has a longitudinal axis about which the hammer member rotates. The cutting member has a longitudinal axis about which the cutting member rotates. The hammer member and the cutting member each having substantially cylindrical peripheries; and each of the peripheries includes a plurality of circumferentially aligned ridges and recesses.

Abstract: A food chopper has a housing having side walls and a generally semicylindrical floor formed with holes and having an inner surface generally centered on a horizontal axis and a shaft journaled in the side walls at the axis for rotation about the axis. Respective elongated elements spaced axially apart along the axis extend radially of the axis and each have an inner end fixed at the axis and an outer end fixed in the floor. A plurality of U-shaped cutters are each unitarily formed with a pair of axially spaced parallel side blades each having an inner end fixed on the shaft and an outer end and a respective end blade extending substantially parallel to the axis between the respective outer cutter-blade ends. The side blades are of such a length that on rotation of the shaft the end blades sweep closely along the floor inner surface. The shaft can be rotated to orbit the cutters about the axis and past the elongated elements.

Abstract: Material reduction apparatus for reducing waste material consisting of both metallic and non-metallic waste which is required to be rendered separable so that each type of waste material is rendered useable, and apparatus that embodies cutters on a single rotary shaft and a series of stationary cutting blades located in a position to allow the shaft mounted cutters to carry the waste material from the stationary cutting blade to effect the desired reduction of that waste material is provided with structure permitting removal of jammed material.

Abstract: An apparatus for comminuting solid waste material comprises a frame having an enclosure with an entrance for initially receiving solid waste material; a set of overlapping scissor rolls rotatably mounted within the enclosure for shearing the waste material into subdivided pieces when the material passes between the scissor rolls; a feed roll rotatably carried by the frame for directing the waste material to the scissor rolls; and a separator screen carried by the frame in association with the at least one of the scissor rolls and having a plurality of apertures of a predetermined size for separating pieces having a size less than the predetermined size to pass therethrough to a shear outtake manifold for separation while preventing large subdivided pieces having a size greater than the predetermined size from passing therethrough.

Abstract: A waste processing machine according to the invention is ideally suited for reducing virtually any products. The waste processing machine includes a rotor having multiple processing tools pivotally mounted thereon wherein each tool is adapted to self-limit the depth of the cut into the waste material. In addition, the pivotally mounted processing tools are staggered and spaced along the length of the rotor so that a limited number of tools will contact the waste product at any one point in time. Once the processing tool cuts or otherwise reduces the waste product to smaller bits of waste material, the bits are drawn out of the rotor system by screens having angled surfaces formed thereon.

Abstract: Apparatus and process for breaking blocks of compressed particulate material (e.g., coconut coir, peat moss and the like) includes feeding blocks of compressed coconut coir into a confined breaking space, and breaking coconut coir from the blocks to form a loose mass of coconut coir by causing the blocks of compressed coconut coir to tumble against one another along a general figure-eight flow path. Most preferably, the blocks of compressed particulate material fed into the confined breaking space are brought into contact with a spirally oriented rotary breaking bar. The breaking bar is supported concentrically relative to a central axis by means of radially disposed support arms which carry generally triangular lift teeth. The action of the spiral breaking bar and lift teeth (if present) cause the blocks of compressed particulate material to tumble against one another in the confined chamber along a general figure-eight flow path.

Abstract: An integrated unitary comminuting system adapted for wastewater channel use is provided with devices which include a stationary single or dual semi-cylindrical-like sizing and sweeping screen member each having a rotating sweeping mechanism of interactive slotted comb bars or blades with tynes or teeth, so as to sweep and clear lodged or agglomerated solids adhering to the outer circumference surface of the semi-cylindrical-like screen member, disposed in spaced apart contiguous parallel relationship with a twin shaft shredder device having two parallel shafts with shredder or grinder teeth along the length thereof that rotate in opposite senses. The unitary system of devices may be positioned perpendicular between the influent and effluent side of the wastewater flow in a channel so that solids therein will encounter the semi-cylindrical-like sizing and sweeping screen members or the twin shaft shredder as the wastewater flows through the channel.

Abstract: A modularly tiered clear-trajectory impact commuter apparatus that comminutes rock, drilling materials and other comminutable by impact rather than by grinding or crushing. The invention creates a comminution environment which maximizes the establishment of a clear essentially tangential trajectory for the material between the orbit of each spinning blade and a single rectangular breaker bar. The modular vertical series coupling of the modularly tiered clear-trajectory impact comminuter apparatus may be adjusted to accommodate the material throughput for any environment whereby, for any given size of comminution chamber and rotary blade configuration, any number of tierable, modular comminution chambers may be vertically tiered for achieving the desired material throughput in relation to the load of comminutable material.

Abstract: The housing of a waste cutter is divided in a central, vertical plane so that each housing section (23, 24) is tiltable about a respective hinge (26, 27) each preferably having a vertically extending hinging axis (26B, 27B) positioned at a rear bearing shield (10) in which a rear end of a cutting rotor (1) is rotatably mounted. The front end of the cutting rotor (1) is rotatably mounted in a front bearing shield (14). A clamping and locking device (33) pulls the housing sections (23, 24) into a closed position and holds the sections in the closed position. By opening the housing sections the entire interior is easily accessible for maintenance and cleaning work.

Abstract: Material shredding apparatus having a motor driven shaft carrying a material shredding rotor operatively mounted in a housing assembly adjacent a pivotally yieldable material shredding cutter and a shredded material sizing screen pivotally movable between a position in abutment with the pivotally yieldable shredding cutter and a shredder material receiving position adjacent the shredding rotor. The assembly being provided with electrical safety cutoff circuit means operative upon loss of shear pin support means for the material sizing screen and shredding cutter for stopping current supply to the motor driven shaft to avoid damage to the housing assembly by encountering tramp material to hard to shred by the shredding cutter.

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: A hammer mill for batchwise operation has a mill housing having a perforated screening plate intended for discharging a fine fraction of the milling material. A coarse fraction of the milling material is emptied through an emptying flap. A supply shaft opens tangentially into the milling chamber. The supply shaft is closed by a movable closure wall. In order to maintain short consistent treatment times of the milling material and to precisely reproduce a specific degree of filling for the treatment space, the supply shaft is dimensioned such that it can receive more than a milling-chamber fill. The movable closure wall is displaceable back and forth between a raised standby position and a lowered operating position such that the milling material introduced into the supply shaft when the closure wall is raised is forced into the milling chamber and then held therein by the closure wall being displaced in the direction of the milling chamber.

Abstract: A shredding apparatus for converting waste material, like vehicle tires, into a shredded size by driving a pair of shafts having cooperating shredding discs on the shafts, mounting the pair of shredding shafts in an open top cage to receive waste material for reduction and discharge through material sizing grate below the material shredding shafts, oscillating the cage relative to the pair of shafts with the result that some waste material works its way into dead spaces between the movable cage walls and the shredding shafts, and employing waste material devices in the dead spaces to process the waste material in the dead spaces so as to alleviate increase in the driving load.

Abstract: A shredding apparatus includes rotating shredder rollers with parallel axes. Each roller is formed by numerous toothed discs with spaces between the discs. Two or more of the rollers are cooperating rollers with the discs of the cooperating rollers being offset so that the discs of each of the cooperating rollers can enter the spaces between the discs of another one of the cooperating rollers. Some of the rollers cooperate with curved grid sectors that are coaxial with the rollers. Curved, non-perforated and/or perforated plate sectors are coaxial with a pair of cooperating rollers rotating in opposite directions, the plate sectors being coaxial with and having a greater radius than the cooperating rollers and extending around the cooperating rollers for an arc. Blades are provided along one or more edges between the perforated and/or plate sectors.

Abstract: A disc type chipper/mulcher having multi-blade flails in which two or more blades are attached to a sleeve, and the blade/sleeve combination pivots about a post as a single unit. The flails are sharpenable and reversible, and can be mounted on the same side of the disc as the knives. The chipper/mulcher may also include disc mounted fan blades and a screen for governing the size of the processed materials.

Abstract: Adhered paper is separated from paper covered gypsum board by hammermilling the gypsum board through holes of a hammermill grate, the hole size being selected to produce a screenable mixture of pieces of paper and separated gypsum board particles. The mixture may then be screened to segregate the pieces of paper from the particles.

Abstract: A food soil handing system for a dishwasher is provided. A main carrier arm has two driver arms rotatably mounted thereon. Each driver arm turns a driver gear engaged with a stationary ring gear. Rotation of the driver arms results in rotation of the main carrier arm, providing significant torque. The main carrier arm is disposed above a drain plate having perforations to drain wash water. A pair of resilient wipers are secured to the main carrier arm to wipe across the plate as the carrier arm rotates. The wipers mash soft food particles through the perforations. Hard items are either swept around or passed over by the wipers for later retrieval.