Abstract: A rotor for a vertical shaft impact crusher features a unique protector for the trailing edge of each material exit portal of the crusher. The portal protector includes upper and lower "wings" between which is a channel. The wings and channel trail outwardly from the portal and along the periphery of the rotor to create a pair of trailing vortices which confine the exiting material to the periphery of the rotor in order to prevent the material from also spilling over the upper and lower edges of the portal and onto the top of the rotor, thus reducing wear. The peripheral wall of the rotor is protected by symmetrical shell segments having upper and lower lips. Each of the latter is engaged in turn by a symmetrical, segmented rim liner fashioned so that a shell segment can be replaced or moved to even-out wear simply by removing one of its associated segmented rim liners.

Abstract: A mill for pulverizing rock and other material. The mill includes a series of rings each having nine flat faces extending around the interior surface of the ring. The rings are arranged in a vertical column. A baffle plate possessing a central aperture is disposed between each pair of adjacent rings. A vertically extending axle extends through each of the central apertures of the baffles. A rotor is disposed between each pair of adjacent baffles and is mounted on the axle for concurrent rotation therewith. The periphery of each rotor possesses a plurality of curved blades so that when the axle is rotated, the rotor creates a suction force, which hurls the rocks forcibly toward the flat surfaces of the rings. Some of the rocks ricochet off the flat surfaces and collide into the rocks being hurled toward the flat surfaces, which collision causes the rocks to break apart.

Abstract: This invention relates to replaceable wear resistant components for rotary impact crushers and more particularly to the wear resistant assemblies at the outlets from the crusher rotor the outlet trailing edge main wear tip comprises a backing plate having secured to its forward end a wear resistant assembly forming a step which will be inwardly directed in use with respect to the rotor outlet the step being sufficient to cause a build up behind the step of material being crushed to form a protective lining against the inner wall of the rotor.

Abstract: This invention relates to rotary impact crushers designed to provide a lining of rock to the crusher chamber walls against which crushing can take place and more particularly a lining of arcuate shape in vertical cross-section so that rock rebounding from the lining tends to follow the arcuate shape and follow a downward path towards and across that of the rock discharged from the rotor outlets.

Abstract: This invention is concerned with a rotary impact crusher for the comminution of rock and wherein the crusher chamber is designed so that an inspection door forms part of the crusher chamber wall enabling not only inspection but also replacement of the rotor wear parts to be achieved quickly and easily. The crusher also has a rotor of substantially triangular shape with wear tip and liner assemblies retained in position by the forces experienced during use of the crusher.

Abstract: A centrifugal refining crusher for simultaneously crushing and refining feed material in which the feed material such as ores and rocks is thrown out into housing around rotor making use of the centrifugal force created by the rotation of the rotor. A further second rotor is provided under an opening for dropping the feed material formed in between the first housing and the first rotor, a second housing is provided around the second rotor, anvils are provided on the first housing mainly to crush the feed material, and a deadstock portion is formed by the material in the second housing mainly to refine grain shape of the broken feed material.

Abstract: A carbide tip is provided at a charge stock discharge opening of a rotor in a crushing apparatus. The dimension of the carbide tip in the inner circumferential direction of the rotor is set to 1/2 or more of a maximum particle size of the charge stock. Furthermore, another dimension of the carbide tip is set to 1/2-2 times the maximum particle size of the charge stock. A groove is formed at or near a bonded portion between the carbide tip and a base material of an end blade, so as to avoid stress concentration at the bonded portion.

Abstract: A rotary hammer mill for breaking stone, gravel and similar material to achieve a desired size reduction. The mill includes a plurality of hammerheads rotatably supported in a housing for rotation in a substantially horizontal plane to define a substantially horizontally disposed annular breaking zone. The hammerheads are rotatably driven at a breaking speed sufficient to cause the hammerheads to reduce material impacting against the hammerheads in the breaking zone. Material is introduced down into the breaking zone in an annular pattern so that the feed of material into the breaking zone is annularly distributed rather than concentrated at a single feed location.

Abstract: An impeller is disclosed for use in a centrifugal impact rock crusher. The crusher includes a cylindrical housing and an impact surface positioned radially around the housing interior. The impeller, which is mounted for concentric rotation within the housing, includes upper and lower cover plates, a landing surface being carried upon the lower plate and an opening being formed in the upper plate for directing rock into the impeller. A cylindrical sidewall connects the cover plates and has a plurality of exit openings formed equally spaced around the sidewall. Rotation of the impeller causes a portion of the rock to be crushed to be retained with the impeller by lips and baffles mounted therein, the retained rock forming accumulations having relatively well-defined faces.

Abstract: An impeller blade shoe for a centrifugal impact rock-crushing machine includes protrusions on the surface of the shoe that cause its wear surface to wear more evely when subjected to a stream of aggregate. The protrusions may take the form of a staggered pellet matrix or radially directed grooves or ridges.

Abstract: An impeller shoe for a centrifugal rock crushing machine comprises an elongated body of wear resistant alloy material having a generally trapeziform shape with a back bearing surface on one side and a working front face extending longitudinally on its other side. The front face has a plurality of adjacent exterior surfaces, each surface forming a different acute angle with respect to the back bearing surface. The impeller shoe is adapted to be retained by a bracket on a horizontal turntable of the rock crushing machine to propel aggregate striking the front face to an anvil spaced outwardly from the turntable. The multiple exterior sections of the working front face in use produces a progressively wear pattern along its length that is substantial uniform in depth.

Abstract: A vertical shaft rock crusher has a frame attached to its outer shell to which a support ring is horizontally mounted. A plurality of breaker plates are disposed on the support ring in an interlocked arrangement. The breaker plates are disposed in a staggered array to form rings of breaker plates stacked in a brick-like manner and require no mounting hardware. One breaker plate embodiment has a relatively smooth circumferentional surface, another have V-shaped grooves disposed in the rock crushing surface. A third embodiment has pockets formed between the stacked rings. Interconnection of adjacent breaker plates, in one embodiment of interconnection structure is accomplished by forming a slot on one side of the breaker plate and a mating post on the other side, such that adjacent plates may be interlocked to each other.

Abstract: A vertical shaft impact crusher is provided comprising a housing, a rotor mounted within the housing for rotation about a vertical axis and propelling incoming rock outwardly against a crusher ring, wherein the crusher ring is comprised of segments each capable of autogenous, impact or semi-autogenous crushing or combinations thereof in order to precisely control the size and shape of crushed products.

Abstract: A centrifugal grinder for pulp wood and wood chips has a stationary internal grinding surface and a rotor rotating within the surface. The rotor has an axial feed passage for stock to be ground, and at least one passageway extending from the passage to the grinding surface. A guideway in the rotor is disposed at an angle to the grinding surface and is located such that, as the rotor rotates, the guideway sweeps over the portion of the grinding surface in contact with the stock to be ground. A sealing bar is located in the guideway, the bar being of a material softer than the grinding surface so that it can be worn down into conformity with the surface. A rack within the guideway is connected to the sealing bar, and a pinion engages the rack.

Abstract: Apparatus and method for the pulverization and burning of solid fuels, such as coal, that provides for introducing relatively coarsely divided solid fuel into the lower part of an upstanding, closed housing for impact crushing therein, and for carrying the fuel fines upwardly through a turbulent zone defined in the housing between rotating spiders that include widely spaced radial blades that are oppositely angled to generate opposing air flows to further pulverize the entrained fuel fines autogenously by attrition. The entrained fuel fines in the rising column of air are then discharged from the housing into a burner for the pulverized solid fuel.

Abstract: Apparatus for conditioning a granular material having a centrifugal throwing wheel for projecting the material radially against an impact surface member which completely surrounds and is spaced from the periphery of the wheel and includes an impact plate and ricochet plates. The impact plate is provided with generally radially disposed baffles with sides of adjacent baffles guiding and channeling the stream of material. The baffles are triangular in cross section with a forwardly facing side sloping at a lesser angle than the other side. The general course of granular material is downwardly through the apparatus and to retard this flow and thereby promote separation of granular material from fines, bed baffles which entrap and hold granular material are provided within the apparatus. Apparatus is provided for introducing a stream of air into the apparatus for transverse flow across the retarded downward stream of granulated material to effect separation of fines.

Abstract: A distributor wheel 20 comprises, downstream of each outlet aperture (24, 25) of its channels (22, 23), in relation to the direction of the projection of particles, a member (30, 33, 34) fixed for rotation with the wheel (20) and making it possible to form, at the end of the guide face of each channel (22, 23), a stable protective cushion composed of the particles themselves and extending the stable self-protection layer (28), and to eliminate the contact force between the particles and the wheel (20) before ejection and projection of the particles onto the target.

Abstract: A vertical shaft impact crusher features a split tub such that the upper portion carrying the anvil ring and anvils can be removed as a unit and inverted on the ground for fast and easy anvil removal. The upper tub portion can also be rotated relative to the lower portion in order to even out anvil wear quickly and effectively.

Abstract: A method and an apparatus for finely crushing particles of material in a mill comprising feeding the material to be crushed to a first impact position, impacting and impelling the particles from the first impact position by a rotating impact surface stationary impact surface to a and accelerating the particles in a vacuum to produce a sufficiently high impact energy at the first impact surfact to crush the particles fed thereto prior to the section impact surface. The particles to be comminuted are passed through a feeding tube or channel to a crushing chamber containing a rotor having its axle parallel to the feeding tube and having first impact surfaces thereon which are arranged to be parallel with the stationary impact surface, or surfaces, at the time they impact with the particles fed to the first impact position. The outlet of the feeding tube is located at the outer periphery of the rotor.

Abstract: A solid fuel pulverizer especially useful in a system for pulverizing and burning solid fuel, such as coal or other fossil fuel, that is characterized by a possible turndown ratio of up to at least fifteen to one. The pulverizer is capable of both impact and autogenous pulverizing of the fuel so that about 80% will be no more than 40 microns in size and includes a series of impellers mounted for rotation on a preferably vertical shaft in a housing whose top wall has openings for the admission of air and a solid fuel to be pulverized. The fuel is pulverized by impact against the side walls of the housing and descends perpherially of the impellers to discharge adjacent to the bottom of the housing.

Abstract: The disclosure relates to an improved rotating impeller table for a secondary impact crusher comprising a side discharge port containing housing incorporating dove tailed abrasion resistant wear elements disposed on the external cylindrical wall thereof. The dovetailed wear elements overlap and are supported by removable lower edge wear liners which also protect the outer edge area of the lower part of the housing. A removable top liner retains the dove tailed elements in position and protects the upper part of the housing from abrasion. A removable and repositionable wear ring fits within an annular opening in the top of the housing and may be repositioned at least three times to essentially triple its wear life. Upper and lower centrufugally locking flat and ramped liners are disposed within the housing on its upper and lower ends.

Abstract: Device for projecting solid particles for a vacuum centrifugal grinder incorporating a rotationally driven distributor wheel (20) in which a plurality of ejection channels are formed. The particle-guiding face in each channel (21, 22) has a curvature (A) extending in the direction of rotation of the distributor wheel (20) and whose outline, calculated as a function of the friction coefficients of the materials in contact, produces the attachment to said curvature (A) of a stable self-protection layer (30) consisting of the particles themselves, with automatic regeneration of the layer as it wears. The invention applies, for example, to the grinding of cement or pulverized coal.

Abstract: In an apparatus and method for producing sand from stone, the stone is first crushed in a centrifugal crusher and then filtered through a screen. The stone retained on the screen is further crushed by a vibration mill. The stone passing through the screen and the stone crushed by the vibration mill are combined and then are filtered through a separater to separate out the minute particules. Measurements of various flow rates and particle sizes are made in order to control the rotational speed of the vibration mill and the rate at which stone is supplied to the screen.

Abstract: Mineral impact breaking apparatus uses a divided flow with the first part of the flow being accelerated preferably through a rotor and discharged towards an impact breaking surface. The second part of the mineral flow is introduced into the path of the accelerated first part of the flow so that there is impacting between the first and second flows of minerals and with the second flow acting as anvil blocks against which the first flow particles will be impacted and broken. Where the horizontal accelerating rotor is used to accelerate the first part of the mineral flow the kinetic energy of the rapidly rotating air above the rotor is used to direct an air flow back to the infeed of the rotor and minimize dust discharge.

Abstract: A vertical shaft impact crusher having a rotor mounted for rotation about a vertical axis on a vertical shaft supported by a central bearing, and an impeller mounted on that shaft so that rock fed into the crusher is caught by the spinning impeller and thrown against an adjacent breaker means, and is broken; wherein the crusher is provided with a guard ring means and a dust shell means mounted telescopically and concentrically to each other with the vertical shaft to restrict the entrance of rock dust and rock fragments into the rotor shaft and bearing; and an annular flexible curtain mounted in spaced relationship to the interior of the crusher housing to dissipate material velocities and reduce operational noise.

Abstract: A method and apparatus for releasing cut tobacco from cigarettes are disclosed. The method includes the steps of providing dispersing fans at its periphery in a radial manner within a releasing barrel, scattering the cigarettes by the dispersing fans, circulating the scattered cigarettes along several releasing plates adjacently arranged to form a circle around the outer periphery of the dispersing disc, and releasing part of cut tobacco from the cigarettes by colliding it against knobs which are arranged at the inner peripheral surface of each of the releasing plates during circulation. Such rotary dispersing discs as mentioned above are formed in several steps in the vertical direction within the releasing barrel. The partly released cigarettes are dropped on to the lower step of the rotary dispersing disc through openings defined between adjacent releasing plates.

Abstract: A blasting wheel is provided with vanes having a relatively concave face to project abrasive particles in a narrow pattern.

Abstract: A method of milling a powdery substance to finer particle size includes impacting the powdery substance against single or multiple surfaces under vacuum conditions and at reduced temperature condition to cause particle fracture, and collecting said fractured particles.

Abstract: A method of comminuting a rare earth metallic alloy powder by impact milling for facilitating formation of an improved rare earth magnet.

Abstract: A centrifugal grinder with an internal grinding surface and a rotor turning within that surface includes a passage for inserting material axially into the rotor and a pocket to allow the material to contact the internal grinding surface. A spray is provided on the rotor at a location trailing the pocket, to spray liquid against the internal surface and make a slurry with ground material. An element of air-foil shape is mounted on the rotor at a location trailing the spray, the air-foil having a rounded contacting portion juxtaposed against the internal grinding surface, and have the effect of lifting the slurry away from the surface. A scoop trails the foil and has a leading edge juxtaposed against the internal grinding surface, defining a pocket for collecting the scooped-up slurry. A compartment is located axially beyond the grinding surface and a passage allows the scooped up slurry to pass from the pocket of the scoop to the compartment.

Abstract: A mixture of particles of different materials is further comminuted by rubbing contact while moving at high relative velocity along a surface of a solid body to a substantially smaller size range during which the particles of different materials acquire a very high differential charge, and while bearing such high differential charge the particles of different material are entered into an electric field for efficient separation of particles of one material from particles of another material.

Abstract: A portable projection apparatus has an endless belt running over rollers and a rotatable disk having a band on its outer surface. The endless belt partially embraces the band, and the projection material is accelerated between grooves in the band and the endless belt. The band with the longitudinal grooves can be easily exchanged for other groove cross-sections and the interior surface of the belt is provided with a profiling which runs parallel to the circumferential direction, into which the outer surface of the rollers, guiding the endless belt engage with a corresponding profile.

Abstract: A method and apparatus for grinding woodchips into pulp provides an internal grinding surface of circular section defining a cavity in which a rotor rotates. The rotor has a pocket extending to the grinding surface from an inlet spaced inwardly from the grinding surface, and the rotation of the rotor gives rise to centrifugal force urging woodchips against the surface, the woodchips entering at the inlet. The woodchips form a compact plug of material filling the pocket adjacent the surface, and the woodchips are ground to pulp and then removed from the surface to a discharge. A pressure differential is placed across the plug of material in the sense to urge the woodchips in the plug more strongly against the grinding surface, so that the woodchips can press with a satisfactory grinding force against the surface without requiring an excessive rotational speed.

Abstract: A pulverizing mill having a rotor with a shaft at least resiliently supported to enable the rotor of the mill to rotate about its center of gravity.

Abstract: A device for breaking coal and for separating predetermined size coal particles and impurities therefrom. A supply of coal containing rock, shale and other impurities is dumped in a hopper through a top opening. A zigzag-shaped passageway extends from the top to the bottom of the hopper and has a single double action accelerator rotor or a pair of accelerator rotors mounted therein. The rotors increase the speed of the deposited materials that are moving by gravity through the passageway by striking the material and propelling it in the same direction that it was moving prior to being struck. The coal is split upon impact against splitting grates. Chutes located beneath the splitting grates receive the coal particles which pass through sized openings formed in the grates and deposit it in a collection area. The rotors each include a shaft with a plurality of radially outwardly extending blades.

Abstract: A rotary mineral breaker has wear tip over which the mineral pieces are passed when discharged from the rotor. A supplementary wear tip is provided as a back up for the main wear tip so that failure of the main wear tip will not result in undue damage occurring to the rotor. Also the main wear tip is provided as two interchangeable pieces to improve the useful life of the wear tip.

Abstract: A jet-type grinding system for grinding relatively large particles, such as coal and the like, wherein the particles to be ground are entrained in a circulating gaseous vortex in which the particles are caused to pulverize each other, the system including a mill having a grinding chamber succeeded by a classifier section in which smaller ground particles are initially separated from larger ground particles, this classifier section constituting a primary separator, the primary separator being in operative connection with a secondary separator into which ground particles pass from the first separator for additional classification and separation into smaller and larger particles, and a tertiary separator inoperative connection wtih the secondary separator to provide passage from the secondary to the tertiary separator of ground particles for additional classification and separation of smaller from larger particles, the passage of all of the particles from one separator to the other being by centrifugal force, an

Abstract: A centrifugal rock crusher that is convertible from a type utilizing anvils to a type utilizing a rock bed to define the impact surface includes a housing having upper and lower cylindrical portions, the upper portion being of a greater diameter than the lower portion, and a circular horizontal shelf ring connecting the upper and lower portions. An impeller disposed for rotation concentrically within the housing receives rock to be crushed and throws the rock outwardly into the upper housing portion. Anvils may be positioned along the shelf ring to define the impact surface and receive the thrown rock. Alternatively, the anvils may be removed and an insert may be provided that includes a circular horizontal shelf extension ring having an outer diameter equal to the diameter of the lower housing portion.

Abstract: An improved impeller assembly for use in a centrifugal impact rock crusher is provided in which rock to be crushed is directed to the impeller interior. The impeller assembly is rotated within the crusher housing and throws the rock against an impact surface positioned radially around the housing interior. The impeller assembly includes generally circular upper and lower plates, the upper plate having a concentric circular opening for receiving rock into the impeller interior. A cylindrical side wall connects the upper and lower plates and has defined therein a plurality of exit openings equally spaced along the wall through which rock to be crushed is thrown. Each of the openings has upper, lower and two side edges, with the upper and lower edges being remote from the upper and lower plates, respectively. A portion of the incoming rock material is trapped as accumulations within the impeller interior.

Abstract: A vertical shaft impact crusher is provided, having a cylindrical tank in which the rotor is mounted for rotation about a vertical axis and for receiving rock fed axially from above and having impeller shoes for accelerating and throwing the rock outward against an annular breaker ring; wherein the breaker ring is a circular hoop mounted to the interior of the tank and has a plurality of spaced mounting means designed to securely yet releasably hold a plurality of specially designed anvil members, each having a head comprised of a flat impact surface and an octagonal shaped periphery; a foot portion and a narrowed neck portion connecting said head and foot portions and engaging the mounting means so that the anvil may be indexed at a number of annular positions.

Abstract: A mineral breaker with a horizontally mounted driven accelerating rotor having a mineral inlet on the under surface thereof and with material to be processed being drawn into the rotor in a flow of air. The processed material is discharged also in a flow of air through a tube or tubes from the top of the rotor housing. Mineral pieces not sufficiently reduced in size may be recirculated through the rotor and additional material added for further processing. The size of processed particles is controlled by the airflow passing through the rotor.

Abstract: A vertical shaft impact crusher is provided comprising a housing, a rotor mounted within the housing for rotation about a vertical axis and having a rotor for propelling incoming rock outwardly against a breaker ring to be crushed, wherein the crusher is capable of easy and fast conversion between autogenous and anvil impact crushing by virtue of two forms of replaceable breaker rings, one of which is adapted to hold a bed of rock for autogenous impact crushing and the other of which is adapted to hold a series of interchangeable anvils adapted for impacting an incoming flow of rocks. The breaker rings of the present crusher are further provided with lifting lugs and a hoist for easy replacement.

Abstract: A system for pulverizing and burning solid fuel, such as coal or other fossil fuel, characterized by a possible turndown ratio of up to at least fifteen to one, includes a unique pulverizer capable of both impact and autogenous pulverizing of the fuel so that about 80% will be no more than 40 microns in size, and a unique burner which includes a valved firing nozzle having a firing conduit with firing orifice and internal turbulating means for a mixture of primary air and pulverized solid fuel, and a controlled secondary air supply. A movable valve element, preferably in the form of a double-taper-ended diffuser positioned downstream from the firing orifice, controls outflow of a turbulent stream of the mixed primary air and fuel from the firing orifice into an ignition chamber and controls flame shape.

Abstract: A centrifugal throwing blast wheel is made of two discs which are spaced from each to form a V-shaped outwardly widening slot forming an angle .alpha.. Sets of diametrically opposed ejection vanes are between the discs. One set has straight throwing faces. Another set has concave faces with a curvature axis inclined toward the plane of rotation at an acute angle greater than .alpha./2. A third set has curved faces inclined toward the other side of the plane of rotation.

Abstract: A process for cutting of material includes the continuous loading therefrom into a generally cylindrically or conically shaped vessel, which is rotating around its longitudinal axis, in which is mounted a fast rotating knife shaft, its knives which are provided with one or several cutting edges reach near to the inside wall of the vessel. The material to be cut, loaded into the vessel in axial direction, deposits a layer on the inside wall of the vessel in consequence of the centrifugal force, which is treated by the knives and is displaced in axial direction to the discharging end of the vessel where the cut material is continuously taken away. The equipment includes a material feeding device, a drive for the vessel and the knife shaft, each with different speed, as well as a discharging device for the cut material. The axis of the rotating vessel as well as of the knife shaft can be vertically or horizontally arranged.

Abstract: In a centrifugal crusher including a rotor rotating at high speed for receiving a supply of material to be crushed, and a crushing chamber enclosing the rotor, the material is thrown out of the rotor in a tangential direction by centrifugal forces into collision with a dead-bed constituted by particulate material stacked in a heap in the crushing chamber after being produced by crushing the material. The particulate material brought into collision with the dead-bed is allowed to stay in the crushing chamber for a period of time long enough to serve as a dead-bed for crushing the particulate material into particles of a desired particle size, before being discharged continuously or periodically from the crushing chamber.

Abstract: An improved feed arrangement is provided for use in a centrifugal impact rock crusher that includes a housing with a housing cover attached thereto having a circular housing feed opening defined therein concentric with a central axis. An impeller is rotated concentrically with the axis to throw rock received within the impeller against an impact surface within the housing to crush the rock. An impeller cover includes a circular impeller feed opening concentric with the axis and of a diameter substantially equal to that of the housing feed opening. The feed arrangement includes a hopper with a circular exit opening of a diameter substantially equal to that of the housing and impeller feed openings. The hopper is supported above the housing cover, and a cylindrical feed tube extends from within the hopper, through the exit opening and the housing feed opening and into the impeller feed opening. The feed tube is of a diameter slightly less than the openings through which it passes.

Abstract: A batch seed dehuller for seed testing purposes is provided and includes an upright cylindrical chamber merging downwardly into the upper major diameter end of an inverted frusto-conical chamber which in turn merges downwardly into a downwardly opening generally cylindrical passage of smaller diameter than the cylindrical chamber. An annular top wall closes the outer peripheral portion of the upper end of the cylindrical chamber and includes an inner periphery downwardly from which a tubular vortex finder extends to a level spaced above the frusto-conical chamber. The cylindrical passage includes a small diameter generally radially inwardly opening compressed air inlet intermediate the upper and lower ends thereof and a lateral airflow outlet of greater cross-sectional area than the inlet opening generally radially outwardly of the cylindrical passage substantially diametrically opposite the inlet.

Abstract: An elongated impeller shoe assembly 10 is described for a vertical shaft centrifugal impact crushing machine 11 for increasing the effective utilization of the assembly and for substantially reducing the cost to utilization ratio. The assembly 10 includes an elongated supporting base member 28 for attaching to a turn-table bracket 20 in which the base member .Badd..[.20.]..Baddend. .Iadd.28 .Iaddend.is cast of a high strength steel alloy material. The base member 28 has a wide longitudinal female dovetail groove 54 formed in a front face 38 thereof extending between an inner end 32 and an outer end 34. The groove 54 has a shallow taper downward from the inner end 32 to the outer end 34. The assembly 10 includes a wear resistant member 30 mountable to the base member 28 for receiving the material from a central distribution disc 15 and directs the material radially outward along a front face 82.

Abstract: An anvil assembly 10 is described for a vertical shaft centrifugal impact crushing machine 11 for increasing the effective utilization of the assembly and for substantially reducing the cost to utilization ratio. The assembly 10 includes a wedge-shaped supporting base member 22 for attaching to a bracket 20 in which the base member 22 is cast of a high strength steel alloy material. The base member 22 has a wide longitudinal female dovetail groove 46 formed in an inclined front face 36 thereof extending between an upstream face 38 and a downstream face 40. The groove 54 has a shallow taper downward from the upstream face 38 to the downstream face 40. The assembly 10 includes a wedge-shaped wear resistant member 24 mountable to the base member 22 for receiving the particulate material from a central turntable.