Abstract: A method and a device for adjusting a knife assembly of a knife ring to a predetermined knife projection, wherein the knife assembly is designed to be arranged in the knife ring at a chip angle ?, relative to the inside of the knife ring. The knife assembly is formed by a knife holding plate and a chipping knife which are positively connected with one another in a predetermined, relative target position. A knife assembly to be adjusted is provided, wherein the knife holding plate and the chipping knife are displaceable relative to one another. The knife holding plate is displaced in its plane, transversely to its direction of longitudinal extension towards its rear edge, against a first stop. The chipping knife is displaced in its plane against the stop surface of a second stop, until the predetermined knife projection has been reached.

Abstract: A mill head for replaceable attachment to a base so as to collectively form a bone mill. The mill head includes: a first opening in which bone stock is introduced into the head; a cutting device that converts the bone stock into bone chips; a second opening through which the bone chips are discharged; and a third opening through which a motor integral with the base is attached to the cutting device. Internal to the mill head are containment rings. The containment rings prevent the discharge of material through the third opening. The containment rings are services the internal component of the mill head on which the cutting device rests.

Abstract: A configurable device includes a body, driveshaft, plate and driver. The body includes a receptacle, recess, and axial bore. The receptacle is disposed about the bore, and the recess is disposed below and in communication with the receptacle. The receptacle is to receive a pasta strand and communicate a portion of the strand into the recess. The driveshaft includes a first portion and second portion. The first portion extends through the bore, and the second portion extends into the recess. The plate is secured to the second portion and includes a surface having a radial projection extending toward the recess. The planar surface is to abut the portion of the strand in the recess. The driver has an axial opening to removeably engage the first portion. The driver is enabled to rotate the driveshaft that in turn rotates the plate causing the projection to break the portion of the strand.

Abstract: A shredder or grinder for dried material such as herbs of dried leaves comprises a cylindrical container formed of a top element and a base element forming a chamber, the top element and the base element each having a series of concentrically arranged teeth on a base plate, wherein the teeth that slidably engage one another in a slicing motion to form grinding surfaces against one another, wherein the teeth are serrated to efficiently grind the dried materials in the chamber when the teeth engage one another and are counter rotated relative to one another. In one embodiment the chamber discharges the ground contents through orifices in the base element, where the size is regulated by a screen, and in another embodiment, the ground contents remain in the chamber until the grinding head is removed.

Abstract: The present invention is generally directed to a grinder tool preferably having one or more of the following aspects or features: (i) some, preferably most, of the footprint of its bit being shielded by the disc; (ii) the peripheral edge of the disc is at least partially covered by a rock stop hard surface layer; (iii) non-rigid mounting hardware structured to provide a non-rigid mechanical connection between the well and the bit sub-assembly (for example, the non-rigid mounting hardware may include: a rubber isolator; a mesh isolator; and/or a fluid filled isolator); (iv) a stump grinding tool rotating disc assembly having at least one first type bit sub-assembly (including a bit) and at least one second type bit sub-assembly (including a bit), where: (a) the first type bit sub-assembly has a first bit footprint geometry, (b) the first type bit sub-assembly has a first bit footprint geometry, and (c) the first bit footprint geometry is different than the second bit footprint geometry; (v) a rotating disc ass

Abstract: A machine is employed for recovering heavy metals and precious or semi precious minerals, such as gold, copper, lead, diamonds, and garnets from placer, or hard rock ore. The machine employs a cylindrical, annular outer drum mounted for rotation at an inclination to the horizontal and including at least one spiral vane extending the length of its inner surface. A cylindrical, annular inner barrel is mounted within the drum and has an upper fragmentation section, an intermediate screened section, and a lower discharge section. A spray of water is directed into the inner barrel and a water spray bar is located in the annulus between the inner barrel and the outer drum. A fine sluice box is located to receive under one-quarter material input from a side trommel and a coarse sluice box located to receive discharge from the side trommel and discharge from the fine sluice box. The sluice box includes a plurality of landings, matting and screens upon which heavy materials, such as gold or precious stones, collect.

Abstract: A food processor includes a bowl with a removable lid. Food items are advanced into the bowl through a feed tube formed in the lid where they are cut by a cutting assembly. The cutting assembly is adjustable to vary the thickness of the cut food items. A user-operated control device adjusts the cutting thickness of the cutting assembly. The control device is located outside of the bowl.

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: Provided is an electric kitchen appliance including a housing which contains an electric motor connected to an upper drive output, a work chamber comprising a work container sealed by a lid with a chute for inserting food, the work container having a discharge outlet, a removable pressing screw which can be rotated by the upper drive output being arranged in the work chamber. Rotation of the pressing screw is provided by a rotary element removably mounted in the work chamber, the rotary element including a pre-cutting disc and a driving member which is rotated by the upper drive output.

Abstract: Method and device for preparing a paste by blending or mixing materials, in particular for making aluminum production electrodes. The method includes the following operations: a) introducing the materials to be blended or mixed into a vat (31) having an inner surface extending along a substantially horizontal axis of revolution (X), b) rotating the vat (31) about the axis of revolution (X) and urging the materials via centrifugation against the inner surface of the vat (31), and c) locally dislodging the centrifuged materials from the inner surface by rotating the vat (31) and causing same to fall onto a crumbling tool (40).

Abstract: A rotary tumbler metal reclaimer includes an inner cylinder and a concentric outer cylinder that rotate simultaneously. The inner cylinder includes a first compartment that intakes material for breaking by teeth, a second compartment that receives broken material from the first compartment and crushes the material into smaller particles and a third compartment wherein particulate material enters the space between the inner cylinder and the outer cylinder by attrition through perforated screens. The second compartment includes a crusher having various features for crushing lump material as it rotates. The third compartment provides further breakage and conveyance of particulate material. Particulate material then returns proximate the intake for screening into fine and coarse sizes and then collecting for reuse. Metallics and metallic oxides exit the tumbler through apertures in the rear of the third compartment for collection. The tumbler reclaims metals, metallic oxides, sands, and other materials for reuse.

Abstract: A machine for noduling of metal scrap that can upon conversion be used for comminuting such scrap. Frequently machines for comminuting are constructed by a bipartite frame solely for cleaning purpose. One part is solidly fixed to a foundation while the other one is fixed to the first one by hinges and a locking device, so that it can be turned away from the first part of the frame. To further develop such machines that an exchange of worn components is possible and that simply by conversion and by saving of time, one sort of usage can easily be transferred to another one, the complete rotor-block is mounted together with its bearings on a swivelling arm that can be turned away from the frame of the machine in order to enable free access to the interior of the machine.

Abstract: Disclosed herein is a shredder having a rotatable device located adjacent an output opening of the shredder housing. The rotatable device includes a shaft configured to rotate about an axis parallel to an axis of the cutting assembly so as to allow for rotation of the device. The rotatable device has a plurality of fingers extending at least partially radially with respect to an axis of the shaft. The rotatable device is able to rotate about the shaft axis in either direction, so as to disperse any accumulation of shredded materials in the waste bin, as well as remove shredded materials caught in or near the cutting assembly within and adjacent the output opening.

Abstract: A rotary tumbler metal reclaimer includes an inner cylinder and a concentric outer cylinder that rotate simultaneously. The inner cylinder includes a first compartment that intakes material for breaking by teeth, a second compartment that receives broken material from the first compartment and crushes the material into smaller particles, and a third compartment wherein particulate material enters the space between the inner cylinder and the outer cylinder by attrition through perforated screens. The second compartment includes a crusher having various features for crushing lump material as it rotates. The third compartment provides further breakage and conveyance of particulate material. Particulate material then returns proximate the intake for screening into fine and coarse sizes and then collecting for reuse. Metallics and metallic oxides exit the tumbler through apertures in the rear of the third compartment for collection.

Abstract: A planing head, cylindrical body for a planing head and a method of manufacture thereof are provided. The planing head includes a cylindrical body having an axis of rotation, an outer surface around the axis of rotation, and opposite first and second end faces. A plurality of blade assemblies is arranged along the outer surface. A plurality of grooves is provided in the outer surface and each groove is configured to receive a respective one of the plurality of blade assemblies. A hydraulic pressure system for supplying a hydraulic pressure to each of the blade assemblies is provided. The hydraulic pressure system includes a plurality of transverse channels for receiving a pressurised hydraulic fluid and a plurality of oblique channels hydraulically linking the plurality of transverse channels. Each transverse channel extends at least partially through the cylindrical body.

Abstract: A hogger and reducing apparatus and considers issues associated with fibrous other materials clogging screening apertures A paddle arrangement having an open framework rotates relative to the screening apertures provided on a drum. Either or both the paddle arrangement and drum may rotate, the resultant action increasing agitation of raw material (being reduced in size by a reducing means) in the vicinity of the screening apertures and also providing a wiping type effect to help clear material from within the apertures.

Abstract: A tree chipper capable of reducing standing trees to chips has a rotating chipper, a feed mechanism for feeding trees into the chipper and a saw or the like for severing the trees. The tree chipper may comprise a boom that can be moved to position the tree chipper against a tree to be cut and chipped. In embodiments, the rotating chipper comprises a disc having chipping teeth on a face, a generally cylindrical chipper body having chipping teeth on an outer surface thereof and a conical chipper body.

Abstract: Apparatus (10) for treating a waterway having low pH and containing metals such as aluminium in solution, as a result of runoff from acid sulphate soils, is capable of dosing the waterway with a variety of reagents, to bring the metals out of solution and to achieve a neutral pH. The apparatus (10) includes a rotating drum tumbler (14) having a cylindrical drum (52) which, as it rotates, causes limestone rock to abrade to produce particles of calcium carbonate with which the waterway may be dosed. The inner surface of the drum (52) is provided with an abrasive surface (68) which contacts rock pieces (74) and transports them within the drum (52) as the drum (52) rotates, and with guide vanes (72) which contact and deflect the rock pieces (74), causing the rock pieces (74) to abrade each other. Other reagents in liquid and/or powder form may also be dispensed.

Abstract: A shredder for shredding data bearing substrates has a housing and shredder mechanism with cutter elements for shredding paper. The cutter elements are positioned along two shafts and interleave with the other when rotated relative to each other. At least one of the cutter elements comprises a pair of outer blades, preferably made of metal, and an inner support, preferably made of a plastic. The outer blades and inner support are aligned circumferentially to form a cross-cut tooth. The outer blades and inner support may be designed such that they are snap-fit together. The outer blades may be formed from a stamping or punching process, and the inner support may be molded.

Abstract: An apparatus for comminuting materials includes a rotating or stationary ring of knives that is arranged around a chipping chamber. The ring of knives is has a plurality of knife carriers, which are distributed around the knife ring axis in a circular shape, each knife carrier having a bearing surface. The bearing surface is a receptacle for a knife package that is comprised of a knife retaining plate and a slicing knife, and which is held in an operational position at a predetermined angle and a predetermined blade projection by fasteners. The knife carrier has a reference surface, which interacts with the knife package, and based on which the blade projection is determined. The slicing knife has at least one recess that originates in a rearward longitudinal edge, whereby the reference surface is arranged on the projection inside the recess, the projection extending vertically to the bearing surface.

Abstract: A housing for high-speed rotational wood chopping cutter includes parallel plates, one or more expelling portion, and several blocking plates. It can form a solid hollow structure having an isolated storing space. There is a pair of guiding slots for easily installing a high-speed rotational wood chopping cutter inside the storing space. The housing has an ingress for inputting a wood material to be cut and one or more egress portions to expel chopped debris or pieces away due to a centrifugal force caused by high-speed rotation. In this invention, the entire structure is solid and safe. The structure is simple. It has special guiding slots. Plus, it has several expelling modes.

Abstract: The present invention discloses an improved grater disc having a plurality of grater holes on a disc and at least one grater blade with an angle not less than 90 degrees protruded from the periphery of each grater hole.

Abstract: A crusher for crushing cooked wood chips or the like finely. A raw material to be crushed such as the cooked wood chips is delivered into a housing and clamped between stationary blades attached to a stationary plate housed in the upper end of the housing and rotary blades attached to a rotary plate rotating in the housing, so that it is finely crushed by the stationary blades and the rotary blades by making use of the planer principle. The crushed products are carried in the air flow, which is generated around a guide vane disc, which rotates in a through hole formed in a substantially central portion of the stationary plate, and forcibly delivered from an exit in the housing side wall front portion inclined forward, to the outside of the housing.

Abstract: A comminuting unit of a comminuting machine for comminuting material has a plurality of knife carriers with a longitudinal axis. The knife carriers are arranged along a comminution path of the comminuting unit and have a leading longitudinal edge. The knife carriers are aligned with the longitudinal axes transversely to the comminution path and parallel to one another. The knife carriers have an axis-parallel slicing knives arranged at the leading longitudinal edge. The slicing knives have a cutting edge extending at a predetermined angle and a predetermined projecting length into the comminution path. Axial passage slots are formed between the knife carriers allowing passage of material comminuted by the slicing knives such that a rearward longitudinal edge of a preceding knife carrier and the slicing knife of the following knife carrier together define the axial passage slot in the form of a guide channel.

Abstract: A device for comminuting feed material has a rotary blade ring rotating about an axis of rotation. A comminution chamber is enclosed by the rotary blade ring and receives the feed material in an axial direction parallel to the axis of rotation. A counter abutment projects in the axial direction into the comminution chamber. The rotary blade ring is moveable in a radial advancing direction against the counter abutment and applies a pressing force relative to the counter abutment to effect comminution of the feed material in a working position of the counter abutment. The counter abutment has an effective surface facing the feed material and the effective surface is supported so as to be moveable such that, upon surpassing a predetermined value of the pressing force, at least the effective surface performs an escape movement relative to the rotary blade ring in an escape direction.

Abstract: The utility kitchen tool is a multiple task tool used in the kitchen utilizing the force of a spring-loaded scissor action handle applied to a push plate mounted within an attaching interchangeable scoop or container allowing for the scoop to create formed measured amounts of dispensable foods, to prepare food for cooking, to slice food, chop foods or to create molded measured amounts of soft foods for baking or serving in a plurality of ornamental shapes. The scoop also provides either a straight forcing motion of the push plate or a spinning motion of the push plate depending on the present use of the scoop and also provides a attaching container to hold foods being chopped or minced.

Abstract: In a rotor 1 provided with a cylinder 2 which can supply a molten and mixed resin composition to an upper portion of the rotor 1 from an opening portion and is formed by a magnetic material on an outer periphery thereof or is formed by a nonmagnetic material being contact with a magnetic material 3, the resin composition is granulated into powders or in a fiber shape by heating the magnetic material portion so as to pass the resin composition through small holes in the uniformly heated cylinder 2 due to a centrifugal force, and the granulated powders are transferred by an air feeding apparatus 12 having a rotary blade 11 mounted therein from a discharge port in a lower portion of an outer tank 8.

Abstract: A comminuting unit of a comminuting machine for comminuting material has a plurality of knife carriers with a longitudinal axis. The knife carriers are arranged along a comminution path of the comminuting unit and have a leading longitudinal edge. The knife carriers are aligned with the longitudinal axes transversely to the comminution path and parallel to one another. The knife carriers have an axis-parallel slicing knives arranged at the leading longitudinal edge. The slicing knives have a cutting edge extending at a predetermined angle and a predetermined projecting length into the comminution path. Axial passage slots are formed between the knife carriers allowing passage of material comminuted by the slicing knives such that a rearward longitudinal edge of a preceding knife carrier and the slicing knife of the following knife carrier together define the axial passage slot in the form of a guide channel.

Abstract: A molding sand reclaiming apparatus comprising an agitation tank which is provided with a fluidized bed at the inner bottom thereof and also provided with a charging port for used sand and a discharging port for reclaimed sand on the side wall thereof, a rotating shaft driven by a driving source disposed in the agitation tank; a rotating drum which is driven by the rotating shaft to agitate used sand charged into the agitation tank and peel off extraneous matters on the used sand; a classification tank which communicates with the upper part of the agitation tank via a regulating plate and is provided with a dust collecting port; and an air pressure source to fluidize the used sand charged on the fluidized bed in the agitation tank and classify, in the classification tank, the used sand into two parts of the extraneous matters peeled off by the rotating drum and the reclaimed sand, wherein scattering holes for scattering the used sand are formed in a cylinder portion constituting outside of the rotating drum.

Abstract: A process for saline-solution soluble xanthan gum which comprises the steps of precipitating xanthan gum by mixing, with stirring, an aqueous solution of xanthan gum with an organic solvent which is a non-solvent to xanthan gum but is hydrophilic, removing liquid from the precipitated xanthan gum to a liquid content of at most 50%, disintegrating the cake of xanthan gum after the liquid removal to an average grain size of from 0.3 to 2 cm in diameter, and drying the disintegrated xanthan gum by fluidizing the same at a temperature not exceeding 80° C.

Abstract: The present invention relates to a rotary lump crusher/reclaiming drum for reclaiming lump materials such as aggregates, chemically-bonded sand lumps, dross, ferrous and non-ferrous scrap and slag. The rotary drum has an outer cylinder concentric with an inner cylinder both of which rotate simultaneously, the latter containing treatment compartments to reduce the lumps to smaller pieces which are in turn reduced to reclassifiable particulate matter in preparation for resuage.

Abstract: A method and apparatus for converting crude oil tank bottoms to a liquid fuel, which uses a powered cutting tool to break up crude oil sludge contained in an oil storage tank bottom, with injection of cutter stock to facilitate break up of the sludge, an extraction pump to extract the sludge mixture comminution chamber and optional added cutter stock to reduce the particle size of solids to a uniform size range, to form a blend stock, which can be used to dilute a liquid fuel in an amount that will not adversely affect its product specification, whereby substantially all of the fuel value of the sludge is recovered.

Abstract: A vegetable grating apparatus has a housing with a plurality of sides and a top and a supporting stand attached to and supporting the housing. A shaft is rotatably mounted to the housing and has a vegetable grating blade attached to one end thereof and a handle to the other end for rotating the shaft and blade. The vegetable grating blade has a generally truncated cone shape with a large cone end open and facing a vegetable guide mounted through one side of the housing and positioned to feed a vegetable, such as a carrot, therethrough into the open end of the rotatable cone grating blade for grating the vegetable by rotating of the shaft while feeding the vegetable into the blade. A vegetable supporting member has prongs on one end for attaching to a vegetable for feeding the vegetable into the vegetable guide and grating blade. The vegetable holding member has a stop flange which abuts against the guide stop member to stop the feeding of the vegetable prior to the prongs hitting the grating blade.

Abstract: A machine for producing granulate from meltable compounds comprises a stationary inner drum and a rotary outer drum mounted on the inner drum. Melted compound contained within the inner drum drips onto a cooling belt when openings in the outer and inner drums become vertically aligned. A bearing/sealing assembly is disposed at each end of the inner drum. Each bearing/sealing assembly includes a bearing for rotatably supporting the outer drum, and a seal for resisting the leakage of particles beyond the drums. An annulus surrounds the seal and includes a downwardly directed discharge opening enabling particles which have leaked past the seal to fall from the assembly without reaching and fouling the bearing.

Abstract: Milling apparatus for reducing the size of grain kernels or particles by impact with a solid surface as the grain is moved through the apparatus by an air stream created by rotation of a rotor within a stationary casing having an inlet opening at or near the center and an outlet opening at the outer periphery. The rotor comprises a circular disk having a series of elements affixed to a surface thereof in a circular configuration spaced outwardly from the center of the rotor. The elements comprise sections of hollow steel tubing of rectangular cross section or toothed blades so arranged that grain traveling radially outwardly from the inlet to the outlet opening of the casing impact with the elements with a force sufficient to break the grain. The particles may be passed through additional rotor stages, and the particle size or texture of the final product may be controlled by the speed of rotor rotation and the number of rotor stages through which the grain is passed.

Abstract: A dryer drum for drying bulk material including a rotating drum having an inlet for material to be dried at one end and an outlet for dried material at the other end, a center shaft extending therethrough, vanes mounted on the shaft circumferentially spaced from each other and axially spaced along the shaft, the vanes having a first panel extending substantially in a radial plane parallel to the axis of the shaft, a second panel attached to the first panel and facing in a downstream direction and a third panel attached to the second panel; wherein the bulk material to be dried moves in sliding movement over the panels and is mechanically conveyed toward the dryer inlet.

Abstract: In the case of a composter comprising a drum supported for rotation about a level longitudinal axis thereof, means for driving said drum about said axis, said drum including a peripheral casing which is at least partly in the form of perforated sheet metal panels, a longitudinal conveying device fitted under said drum and able to be driven selectively in opposite directions for selective conveying of compost falling from said drum to a compost deposit and a lifting conveying device arranged at one end of said drum, a charging device arranged in an upper part of the drum for cooperation with the lifting conveyor, the aim of the invention is to ensure the most even distribution of the coarse material along the length of the drum while nevertheless keeping to a simple design of the composter and ease of operation.

Abstract: A comminutor and pump are assembled together with the pump being arranged to draw liquid, such as sewage, into a comminution chamber containing a rotating hollow cylinder which functions as a combination cutter and strainer. The solids in the sewage are comminuted until they are of a size small enough to pass through openings in the cylinder into the interior thereof from which the comminuted particles are pumped to a desired location, such as an irrigated field, by the pump. Various drive arrangements are provided to drive the pump at a relatively high speed and the rotating cylinder at a relatively low speed.

Abstract: An improved flighting for dryers is the subject of the present invention. An elongated drying drum is disposed for rotation about its longitudinal axis. The inner surface of the drum is provided with a plurality of material distributing vanes in circumferentially spaced relationship. The vanes are characterized by first surface extending generally transverse to a tangent to set body at the point of attachment and a second wedge-shaped surface intersecting the first surface. The wedge-shaped surface may also be provided with a lip extending circumferentially therefrom. A plurality of interference structures are disposed from a central longitudinal support and provide means for distributing material gravitating from the outer peripheral vanes. A plurality of return flighting members are disposed along the inner surface of the drum between the afore described material distributing vanes. These flighting members are disposed at an angle and conform generally to the curvature of the inner surface.

Abstract: In order to provide a method and a disc cutter machine for carrying out the method with which the previously strenuous blade receiver exchange is simplified and facilitated, it is provided that the blade receiver (8) to be exchanged is tilted up by means of a tilting arrangement (19) with its end facing the outer side of the disc cutter, received by a guide (27) and drawn out substantially in the radial direction along the guide from the region of the disc cutter (6) and then the new blade receiver is inserted along the guide into the disc cutter.

Abstract: A disintegrator includes a grinding chamber (1) accommodating grinding rotors. The housing of the chamber (1) includes a cylindrical portion (7) having an outlet pipe (19) for evacuating the material and two side walls (9 and 10) one of which, particularly wall (9) has a feeding pipe (12). The cylindrical portion (7) can be turned relative to the side walls (9 and 10) the desired position being fixed by locking assemblies (11) arranged about the periphery of the cylindrical portion (7). Each locking assembly (11) includes a pressure plate (13). One end of the pressure plate (13) bears on a projection (15) provided on one of the side walls (10), whereas the other end is received by an annular groove (16) made on the outer surface of the cylindrical portion (7) of the housing. In addition, the plate (13) is secured to the side wall (10)having the projection (15) by a bolt ( 14).

Abstract: A rotating grizzly having a downwardly slanting axis of rotation for reducing the size of agglomerated mineral particles comprising a rotatable framework made up from a series of spaced axial baffles interconnected by a series of parallel spaced bars wherein the baffles extend inwardly toward the axis of rotation a greater distance than the bars.

Abstract: An improved flighting for dryers is the subject of the present invention. An elongated drying drum is disposed for rotation about its longitudinal axis. The inner surface of the drum is provided with a plurality of material distributing vanes in circumferentially spaced relationship. The vanes are characterized by first surface extending generally transverse to a tangent to set body at the point of attachment and a second wedge-shaped surface intersecting the first surface. The wedge-shaped surface may also be provided with a lip extending circumferentially therefrom. A plurality of interference structures are disposed from a central longitudinal support and provide means for distributing material gravitating from the outer peripheral vanes. A plurality of return flighting members are disposed along the inner surface of the drum between the afore described material distributing vanes. These flighting members are disposed at an angle and conform generally to the curvature of the inner surface.

Abstract: An improved flighting for dryers is the subject of the present invention. An elongated drying drum is disposed for rotation about its longitudinal axis. The inner surface of the drum is provided with a plurality of material distributing vanes in circumferentially spaced relationship. The vanes are characterized by first surface extending generally transverse to a tangent to set body at the point of attachment and a second wedge-shaped surface intersecting the first surface. The wedge-shaped surface may also be provided with a lip extending circumferentially therefrom. A plurality of interference structures are disposed from a central longitudinal support and provide means for distributing material gravitating from the outer peripheral vanes. A plurality of return flighting members are disposed along the inner surface of the drum between the afore described material distributing vanes. These flighting members are disposed at an angle and conform generally to the curvature of the inner surface.

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 method and apparatus for removing bran from cereal grains, particularly rice, wherein dehusked cereal grains to be debranned are fed under controlled pressure through a chamber wherein they are laterally confined by an apertured screen while being worked by a special bladed rotor providing pockets of grain which rotate with the rotor within and relative to the confined grain body so that the debranning action is effected mainly by grains rubbing together whereby to produce high grade unbroken polished grains efficiently and economically.

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 centrifugal crusher having a rotor-crusher and a cylindrical grate rotatably mounted about it, wherein the grate is made up from a plurality of bars which on both sides having cam-shaped configuration such that when the bars are assembled, the adjacently lying bars form with their mating cams polygonal or circular apertures which serve as the calibrating apertures for the grit. The bars on their inwardly facing surfaces are formed at a roof-shaped angle to facilitate the material handling capacity of the grate.

Abstract: A classifying and sorting machine for refuse particles, particularly household refuse and other refuse having a composition resembling household refuse, has a rotatable screen drum the diameter of which is within the range of 1:1-1:2 relative to its axial length. Baffles of sawtooth-shaped configuration are arranged in the drum rotating with the same and having inwardly directed ripping teeth. Annular baffles in the drum subdivide the drum into two or more axially adjacent compartments and each have an inner diameter smaller than the inner diameter of the drum, and an arrangement is provided for rotating the drum at an angular velocity which is smaller by between about 20-50% than the velocity at which the drum contents are pressed by centrifugal force against the circumferential drum wall.

Abstract: The cylindrical rotating grate of an attrition mill is constructed by welding a group of bars in close spaced parallel relationship, and then rolling this assembly into a cylindrical configuration. The meeting ends of this configuration are then welded, and an opening is preferably cut from the rolled assembly. The area cut out in the process of forming the opening is used as a cover. The grate structure includes solid abutments interengagable with the cover to hold the cover in position against the large forces encountered during the operation of the mill, with relatively light securing means adapted to hold the cover in engagement with these abutments. A housing surrounding the rotating grate is provided with an opening through which the machine is charged with material, and this opening is covered by a curtain preferably provided with battens and a weight to hold it in position. A vacuum is applied to the interior housing for the removal of dust, which assists in holding the curtain in position.