Abstract: A grinding machine having a mounting arrangement and an anvil. The grinding machine generally including a feed table and a grinding drum positioned within a mill box. The mounting arrangement being configured to support an end of the feed table and the anvil. The anvil including a wedge-shaped portion and having a length. The length of the anvil being configured to extend beyond sides of the mill box.

Abstract: It is an object of the present invention to provide a particle crushing and sizing apparatus having a sufficiently wide particle crushing and sizing range, capable of being scaled down in size, and having high processing throughput. To achieve the object, a particle crushing and sizing apparatus has, in a casing 1a, a horizontally provided drive shaft 2, a plurality of circular plates 10 fixedly supported with intervals at the drive shaft 2, and stators 5 arranged so as to be opposed to plate faces 10a at lower peripheral edges of the circular plates 10 and each having inclined faces 5b that cause a gap between the plate faces 10a of the circular plates 10 to become narrower toward peripheral edges of the plate faces 10a.

Abstract: An apparatus for mounting hammers to a hammer mill having at least one hammer provided for attachment to a hammer mill, the at least one hammer having an opening disposed in one end thereof corresponding to a pivot axis, the opening being of a first diameter. A sleeve having a central opening therein is operatively attached to the hammer mill, the sleeve being disposed in the opening in the one end of the at least one hammer. The sleeve has a first cylindrical outer surface with a second diameter, the second diameter being only slightly smaller than the first diameter of the opening in one end of the at least one hammer. The sleeve has a second cylindrical outer surface with a third diameter, the third diameter being larger than said second diameter. A shoulder on the sleeve extends from the second cylindrical outer surface to the third cylindrical outer surface. An annular groove is disposed in the first cylindrical outer surface.

Abstract: Crusher has a housing with a cylindrical crushing chamber defined by a tubular wall. Opposed side plates are secured to respective ends of the wall. A drive shaft rotates impact tools within the chamber. An intake aperture and a discharge aperture are in communication with the chamber. An inlet door, having an inner face with a curvature of similar radius to the cylindrical chamber, may be pivoted over the intake aperture such that the inner face is flush with the inner surface of the chamber, whereby impact tools strike and remove material adhering to the inner face. An arcuately shaped screen, having a curvature of similar radius to the cylindrical chamber, may be pivoted over the discharge aperture such that the screen is flush with the inner surface of the chamber. The screen may be pivoted away from the discharge aperture for the service thereof.

Abstract: In one aspect of the invention, a rotary impact mill has a milling chamber defined by housing with an inlet, an outlet, and at least one wall. A plurality of impact hammers located within the milling chamber are fastened to and longitudinally disposed along a rotor assembly connected a rotary driving mechanism. At least one of the impact hammers has a body with a first hardness. The impact hammer also has a wear resistant insert bonded to the body, wherein the wear resistant insert comprises a hard surface with a second hardness greater than the first hardness.

Abstract: In one aspect of the invention, a rotary impact mill has a milling chamber defined by a housing with an inlet, an outlet, and at least one wall. A plurality of impact hammers located within the milling chamber are fastened to and longitudinally disposed along a rotor assembly that is connected to a rotary driving mechanism. At least one of the impact hammers has a plurality of inserts arranged adjacent one another in a row and attached to a body of the hammer, wherein a first end of at least one insert is complementary to a second end of an adjacent insert.

Abstract: In an impact crusher, a rise of an advancing-retracting portion (65) of a gap adjuster (60) caused when a rebound plate (33) touches a rotor (32) or the rotation amount of the rotor (32) is detected to determine a zero-point position of the rebound plate (33) is determined based on the detected result, so that the zero-point position can be securely determined since it is not necessary to touch and vibrate the rebound plate with the rotor rotating at a high speed, and since the rebound plate (33) is not vibrated, the zero-point position can be securely determined without being influenced by the abrasion of the rebound plate (33) and the impact plate (322), thereby accurately adjusting gap (C).

Abstract: A mobile crushing machine, equipped with an impact crusher having a separable casing 31 comprising a stationary casing 70 and a movable casing 30, is adopted for casing 31 with the upper end 724 of the stationary casing 70 positioned below the upper end 820 of the movable casing 80 and with the movable casing 80 arranged to permit an operator to collapse the feeding port 31A side of movable casing 80 into the rotation mechanism 39 for transporting the mobile crushing machine The impact crusher is equipped with a gap adjustment device (60).

Abstract: A rotor for food pulping or straining machines is equipped with a plurality of blades (2) designed to act on the food product to force at least part of it out through a sieve (3) that surrounds the rotor (1) and is characterised in that the blades (2) are shaped in such a way as to cause sudden changes of direction in the moving product particles, thus producing a rapid succession of impulses that act on substantially stationary product particles adhering to the sieve (3), these impulses causing the propulsion of the substantially stationary product particles.

Abstract: A material reduction apparatus for reducing materials having an admixture that resists reduction. The mechanism incorporated into the apparatus to provide a bypass of such admixture while avoiding shut down interruption of the materials reduction operation.

Abstract: A blockage clearance apparatus for a crusher that has a housing and a lid and at least one anvil mounted to the lid for crushing material. The housing contains a rotatable rotor with radial blow bars against which crushable materials are forced during operation. In operation, the materials are fed into the crusher, impacted by at least two blow bars and thrown against at least one anvil for crushing. The blockage clearance apparatus includes means for moving the lid and the anvil relative to the rotor during operation, means for inhibiting the material in the housing from exiting the housing when the lid is spaced from the housing during operation, and means for stopping movement of the lid relative to the rotor.

Abstract: A shredder, crusher, hammermill, ringmill or the like is provided with a multi-sided rotor shaft to which spider arms and hammers are mounted. The rotor shaft has at least one pair, and preferably two or more pairs, of opposing sides. The hammers are pivotally mounted between supports in the shape of spiders or discs. The supports include openings which have straight sides corresponding to the number of straight sides on the rotor shaft. The straight sides of the support openings engage the rotor shaft straight sides. Hence, the supports are rotationally fixed in place relative to the rotor shaft without the use of keys and keyways, pins, bolts, or other types of fasteners, allowing for easier assembly and reduced maintenance costs for the crusher.

Abstract: Dried fibers which are designated for the production of fiber boards are supplied to a fiber roller (17) from a metering device through a feed chute (10) which is subjected to negative pressure, which fiber roller is provided on its surface with a plurality of pins (18) and rotates in such a manner that the fibers (14) are deflected by the pins (18), are directed along a chute section (22) defined by means of a partial section (20) of the periphery of the fiber roller (17) and an opposite-lying wall (21) and gluing means and said fibers are accelerated to approximately the peripheral speed of the fiber roller (17) by means of the pins (18) and an air flow generated by said pins. The fibers (36) lie against a section of the wall and are glued in the region of or adjacent to one end of the wall section and exit at an outlet orifice (23) of the chute section (22).

Abstract: A material reduction apparatus for reducing materials having an admixture that resists reduction. The mechanism incorporated into the apparatus to provide a bypass of such admixture while avoiding shut down interruption of the materials reduction operation.

Abstract: A rotor assembly operable with anvil mechanism for comminuting waste wood and other fragmentable material has a rotating drive shaft with a series of rotors fixed in axially spaced relation thereon. A series of radially projecting hammers mechanisms are situated along the axis of the shaft and powered by the shaft. Fragmenting knives are removably secured to the leading outer portions of the hammer mechanisms. The hammer mechanisms include sidewisely reversible hammer legs having portions received by the rotors sidewisely contiguously.

Abstract: A method and system of harvesting crops involves cutting and threshing the crop, separating graff (a mixture of grain kernels, chaff, weed seeds, and other organic matter) from straw (plant stalks), and returning the straw to the field. This is preferably carried out in a harvesting unit of the pull type having a graff storage tank. The collected graff is moved to a stationary cleaning mill in a different location by means of a suitable vehicle such as a truck. Storage of the graff prior to cleaning is avoided and the cleaning mill, and preferably the harvesting unit and vehicle, are designed to make this possible. This avoids difficulties caused by the poor material flow of graff. Various details of the equipment are also novel.

Abstract: The invention provides a crusher rotor for which the influence of centrifugal force is minimal, the hammer is compact, and the load on the attachment bolts can be reduced. A notch 16b is provided in an attachment plate 16 so as to take a force of a hammer tip 22, directed in a radial outward direction of a rotor 1, and a protrusion 22b for engaging with the notch 16b is provided on the hammer tip 22.

Abstract: The rotor (2) being operatively associated with an indexing member (13) in the form of a prism, coaxial and secured in rotation with the rotor, said indexing member having a number of projecting edges equal to the number of beaters (3), the indexing member being positioned on the axis of the rotor such that the application of the indexing plate (25) against the surface of the indexing member causes a rotation of the rotor (2) to a position in which one of the beaters is located at a position of maximum approach with the impact baffle (5), wherein approach of said baffle (5) into contact with the end of said beater (3) defines an origin of adjustment of the spacing ® between said baffle and said beater and thus the adjustment of said spacing for the desired granulometry.

Abstract: Frangible objects that become packed in large containers are removed by crushing the objects while they are still in the containers. A motor-driven crushing assembly is lowered into the container, where rotating strikers come into contact with the frangible objects and break the objects into smaller fragments. The broken fragments are guided into a guiding chute, from which they may be removed by conventional industrial vacuum equipment. The invention may be used for unloading ceramic packing from acid towers.

Abstract: The disclosed device is directed toward a pulverizer including a pulverizing chamber formed between a table, a cover, and side walls. The side walls are coupled between the table and the cover. At least three rotary plates are disposed in the table. Each of the rotary plates include a top surface and a bottom surface, the top surface being proximate the pulverizing chamber. At least one hammer is coupled to each rotary plate on the top surface of the rotary plate. A flow slot is formed between each rotary plate and the table, wherein the flow slot is configured to fluidly couple pulverized material through each flow slot to a discharge. A material feeder is coupled to the cover. The material feeder is configured to feed material to be pulverized into the pulverizing chamber through the cover.

Abstract: A bale-grouping and shredding device includes at least a rotor (4) equipped with said discs whereof the periphery is smooth. The discs (12) are provided with cutting members in the form of sectioning pairs (11). The sectioning pairs are V-shaped and co-operate with the teeth (17) of the barrier (11) to cut up and drive the products.

Abstract: A fragmenting rotor assembly for waste wood and other fragmentable material has a drive shaft assembly including mechanism for driving the shaft in a direction of rotation. A series of radially projecting hammers mechanisms are situated along the axis of the shaft and powered by the shaft. Fragmenting knives are removably secured to the leading outer portions of the hammers. The drive shaft has a series of rotors fixed in axially spaced relation thereon. The hammer mechanisms include hammer supports having portions situated axially sidewisely between the rotors on hammer support members spanning the rotors and rotating with the rotor assembly.

Abstract: A beater bar capable of being acted upon on one side for impactor rotors and insertable form-fittedly into circumferential slots of the rotors has a bend with an elongate cross-section, a bearing surface heldable counter to a centrifugal force of the rotating rotors against a bearing surface of the rotors, a supporting surface engageable with an undercut in the circumferential slot; a piece which holds the beater bar in engagement with the undercut in an circumferential slot, the bend being arcuate, and a center of rotation of a smaller radius of an arc of the bearing surfaces being at a considerable distance from a center of rotation of a larger radius of an arc of the supporting surface, so that the two centers of rotation run in a line extending approximately parallel to a beating surface, the bearing surfaces being at an obtuse angle to one another in a prolongation of the smaller arc.

Abstract: A mobile impact crusher assembly for crushing objects is provided. The mobile impact crusher assembly includes a frame that is configured for attachment to a vehicle. The vehicle is capable of moving the mobile impact crusher assembly and at least partially rotating the mobile impact crusher assembly. The frame is configured to hold objects that are to be crushed. The frame is also configured to allow for crushed to be removed. A rotor is rotationally mounted on the frame. The rotor is configured to rotate and crush objects that are held by the frame.

Abstract: A hammermill for singulating cellulosic fibers from a pulp sheet comprises a cylindrical housing, a feed slot with a breaker bar positioned therein and a rotor mounted for rotation in the housing. Feed rolls are provided to feed a sheet of pulp into the feed slot upstream of the breaker bar. A plurality of hammers are mounted on the rotor. Air is introduced into the hammermill housing tangentially downstream from the second feed slot. An air outlet is positioned tangentially on the housing downstream from the air inlet to allow air and singulated fibers to escape.

Abstract: A retaining wedge assembly for securing an impeller bar to the rotor of a horizontal shaft impact crusher comprises a recess defined in the rotor and sized to receive the impeller bar. The recess includes a first seat shaped to engage a first portion of the impeller bar and a second seat. A retaining wedge includes a first portion adapted to engage a second portion of the impeller bar, and a second portion sized to engage the second seat. A countersunk slot on the second seat receives the retaining wedge, which in turn cooperates to secure the impeller bar in the recess. Guide flanges may be provided for limiting axial movement of the retaining wedge. Thus, the impeller bar may be supported in the recess prior to start-up of the horizontal shaft impact crusher.

Abstract: An improved rotor design for hammermills. The invention eliminates the solid rotor shaft and replaces it with a tubular structure comprised of two stub rotor shafts with plate flanges and grooved spacer rings therebetween. End head disks, attached to the plate flanges, and intermediate disks are concentrically positioned with the axis of rotation of the assembly. The intermediate disks are held in alignment by the pilot groove located in the spacer rings. The flanges, stub shafts, spacer rings and intermediate disks are supported and held in proper alignment by tension rod compression. The resulting tubular rotor shaft assembly is less massive, more stiff, less susceptible to vibration, has a reduced bending stress, is less expensive to startup and operate and less expensive and more flexible in terms of component inventory than known solid through-shaft rotors.

Abstract: A mushroom compost compacting assembly includes a feed hopper unit, a mixer unit, a conveyor unit and a compactor unit all of which are separate and distinct from each other. The units are detachably connected to each other so that the units could be assembled at the mushroom house itself adjacent to the mushroom beds. Compost would be fed to the hopper unit and then to the mixer unit which would spread the compost and feed some of the compost to the conveyor unit with the remaining compost being fed to the compactor unit. The compactor unit includes a series of compactor drums for compacting the compost. The compost fed into the conveyor unit would be discharged directly on the netting of a mushroom bed while the compacted compost from the compactor unit would be delivered to the mushroom bed directly on the compost delivered by the conveyor.

Abstract: A rotor assembly operable with anvil mechanism for comminuting waste wood and other fragmentable material has a rotating drive shaft with a series of rotors fixed in axially spaced relation thereon. A series of radially projecting hammers mechanisms are situated along the axis of the shaft and powered by the shaft. Fragmenting knives are removably secured to the leading outer portions of the hammer mechanisms. The hammer mechanisms include sidewisely reversible hammer legs having portions received by the rotors sidewisely contiguously.

Abstract: A more efficient hammermill is provided. The upper cutting plates located near the inlet at the top of the hammermill has a double radiused profile which increases the steepness of the angle between the hammer and the upper radiused segment of the cutting plate. As material is flung off the hammer, it impacts the more steeply angled upper radiused segment of the cutting plate. The upper radiused segment also provides a progressively tighter radius for the entering material and facilitates the finer reduction that occurs as a result of the closer clearance between the hammer tips and the lower radiused segment.

Abstract: A hammermill for singulating cellulosic fibers from a pulp sheet comprises a cylindrical housing, a feed slot with a breaker bar positioned therein and a rotor mounted for rotation in the housing. Feed rolls are provided to feed a sheet of pulp into the feed slot upstream of the breaker bar. A plurality of hammers are mounted on the rotor. Air is introduced into the hammermill housing tangentially downstream from the second feed slot. An air outlet is positioned tangentially on the housing downstream from the air inlet to allow air and singulated fibers to escape.

Abstract: An apparatus for comminuting rocks, comprising a frame having a restrictive passageway with an inlet and an outlet end for relative displacement of rocks from the inlet to the outlet end. A rotary impacting device is secured to the frame in the passageway so as to be journaled with respect to the frame. The rotary impacting device has hammer elements on an outer periphery of the device. The hammer elements are adapted to scoop and impact rocks in the passageway to project the rocks toward the outlet of the apparatus. An actuator is mounted to the frame and operationally connected to the rotary impacting device for imparting a rotation of the rotary impacting device. A screen is adapted to comminute upon impact the rocks propelled thereon by the rotary impacting device. The screen is positioned at the outlet end such that comminuted rocks exiting from the apparatus are below a predetermined size.

Abstract: An impact mill has at least one rotor fitted with blow bars rotatably mounted in a mill housing and acting together with at least one impact apron, said at least one impact apron pivotably arranged in the mill housing via a pivot axle and infinitely adjustable by means of a linear drive, whereby an end of the at least one impact apron to that of the pivot axle is adjustable in relation to the rotor, and whereby the linear drive is mounted on a cover plate of the mill housing and is pivotably connected to the at least one impact apron at a distance from the pivot axis, wherein the linear drive is horizontally arranged approximately parallel to the cover plate of the mill housing and acts on a single lever passing through the cover plate of the mill housing, and wherein said single lever is firmly connected with the at least one impact apron and together with the at least one impact apron is pivotable about the pivot axle.

Abstract: Frangible objects that become packed in large containers are removed by crushing the objects while they are still in the containers. A motor-driven crushing assembly is lowered into the container, where rotating strikers come into contact with the frangible objects and break the objects into smaller fragments. The broken fragments are guided into a guiding chute, from which they may be removed by conventional industrial vacuum equipment. The invention may be used for unloading ceramic packing from acid towers.

Abstract: Frangible objects that become packed in large containers are removed by crushing the objects while they are still in the containers. A motor-driven crushing assembly is lowered into the container, where rotating strikers come into contact with the frangible objects and break the objects into smaller fragments. The broken fragments are guided into a guiding chute, from which they may be removed by conventional industrial vacuum equipment. The invention may be used for unloading ceramic packing from acid towers.

Abstract: The crop material processor for disintegrating baled crop material comprises a housing for receiving and containing the baled crop material. The housing has a front wall, a back wall, a left side wall, a right side wall and a bottom, wherein each of the left and right side walls includes a fixed lower section and a pivotably mounted upper section forming a movable wing. The processor further includes a disintegrator having a roller positioned along the length of the housing, manipulator rollers mounted inside the housing, and a discharge opening at the bottom of one of the side walls to discharge crop material from the processor. Each of the fixed side walls sections may have a protrusion projecting into the housing substantially level with and parallel to the manipulator roller. Each wing, which rotates about an axis positioned generally at the same level as the manipulator roller, comprises a back panel having one edge fixed to an axle for rotating the wing.

Abstract: To operate the air circulation and convey the stock flow of scrap material comminuted in the housing (1) of a hammer mill, the airflow generated by the blower effect of a rotor (2) and the stock flow passing through an upper classifying grate (4) are diverted by a deflector hood (8) and guided vertically downwards into a duct (6) that is separate from the housing (1). The stock flow is combined with the stock flow classified in the area of a lower classifying grate (5). The air flow is then guided in the circulating air and the combined stock flow is conveyed to a device (11) for further processing, sorting and/or conveyance.

Abstract: A horizontal shaft impact rock crusher having breaker plates which are adjustable by hand, using a novel tension rod adjustment nut locking device which employs several loose-fitting retaining devices which, in combination with a bridge to a frame member or another tension rod, hold the tension rod adjustment nut in place.

Abstract: A method of manufacturing a texturised proteinaceous meat analogue product, including: subjecting, in a food extruder a mixture containing: about 40 to 95% by weight edible proteinaceous materials selected from the group of predetermined mixtures of defatted soy flour, soy meal, soy concentrate, cereal gluten in vital or starch-containing form and egg white, and up to about 7% by weight of edible mineral binding and cross-linking compounds; to mechanical pressure and added heat sufficient to convert the mixture into a hot, viscous protein lava; extruding the protein lava through and from a temperature controlled cooling die which cools and reduces the viscosity of the protein lava to obtain a cohesive, texturised, extrudate slab or ribbon in which vapour-flashing is substantially inhibited; and subjecting the solidified extrudate slab or ribbon to mechanical shredding in a hammer mill having a cage plate with a plurality of elongate discharge openings and a plurality of hammer bars hinged to discs attached to

Abstract: The rotor (2) comprises an indexing member (13) in the form of a prism, coaxial and secured in rotation with it and having a number of projecting edges equal to the number of beaters (3), this member being positioned on the axis of the rotor such that the application against one of its surfaces of an indexing plate (15) mounted at the end of the rod of an indexing jack (14), perpendicular to this rod, causes a rotation of the rotor (2) to a position in which the end of beater (3) corresponding to said edge is located at said position of a maximum approach with the impact baffle (5), thereby permitting defining the origin of adjustment of the spacing (R) between these two elements (5, 3) and thus the desired granulometry.

Abstract: An improved reclaimer device and a method thereof, wherein overall efficiency is maximized via decreased installation and operation costs, and wherein performance is optimized via aggressive treatment of reclaimed bulk material prior to and during exit from the reclaim boom, thereby minimizing costly downtime by preventing jams caused by clumped materials and ensuring the efficient passage of appropriately sized bulk materials from a preferred, generally horizontal conveyor into an out-feed chute and conveyor.

Abstract: A horizontal shaft impact rock crusher having breaker plates which are coupled to a shaft or pins which rest in voids along an edge of the crusher and are held in place by a retainer device, such that the breaker plates with the shaft or pins still attached can be removed from the crusher by releasing the retainer devices.

Abstract: Disclosed is a twine cutting assembly for a rotary drum type bale processor. The twine cutting assembly comprises a twine cutter and a locking mechanism. The twine cutter, comprising a rod and a cutting member, is adapted to extend through a hole in the side wall of the bale processor. The cutting member may be manually moved axially along the surface of the rotary drum in contact with a guide element. The cutting member has a cutting blade which engages with and cuts any twine wrapped around the rotary drum as the cutting member is moved along the surface of the rotary drum. A locking mechanism including a stop member connected to a handle is positioned within a frame mounted on the exterior of the end wall of the bale processor. The stop is moved between a locked position and an unlocked position by movement of the handle. In the locked position, the stop member extends through a hole in the end wall and engages with the rotary drum thereby preventing rotation of the rotary drum.

Abstract: Disclosed is a crusher. A material is sucked in an upper part on one side of a case part which is formed by horizontally coupling a plurality of cases. The sucked material is horizontally moved and discharged to a lower part on other side. A driving force of a motor is transferred to a side of a rotary shaft which passes through the center from one side to other side of the case part. The crusher includes: a rotary blade part for maintaining an interval from an internal peripheral surface of a central part of the case part and being fixed to a central part of the rotary shaft and rotated in one direction to generate a turbulence in multiple stages; a ring gear part being fixed to an internal peripheral surface of the center of the case part and maintaining a gap from a circumference of the rotary blade part to form a crushing zone in multiple stages; and a discharging fan being fixed to other end part of the rotary shaft and rotated in one direction to discharge a completely crushed grain.

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

Abstract: An open throat crop material processor for disintegrating baled crop material comprises a container having front and back walls and two side walls, a disintegrator and at least two rollers for manipulating the bale mounted within the container in parallel between the front and the back walls and a discharge opening that is at the bottom of the first of the side walls of the container. The sides of the discharge opening are defined by the front and back walls, the bottom of the opening is defined by the second side wall that extends under the disintegrator and the top of the opening is defined by the first side wall that extends down to below one of the manipulator rollers. The crop material processor further includes an elongated baffle located adjacent the disintegrator on the discharge opening side of the processor. The baffles may have a planar or curvilinear surface facing the disintegrator and the ends of the baffle may be fixed to or moveably mounted to the front and the back walls.

Abstract: An impact mill with at least one rotor (3) fitted with blow bars (2) is rotatably mounted in a mill housing (1) and acts together with at least one impact apron (4) that is pivotably arranged in the mill housing and that is infinitely adjustable by means of a linear drive (8), such as a hydraulic cylinder piston unit (9). An end of the impact apron (4) opposite to that of the pivot axle (5) is adjustable vis à vis the rotor. The linear drive is mounted on the cover plate (6) of the mill housing (1). According to the invention, the linear drive (8) is horizontally arranged approximately parallel to the cover plate and acts on a lever (11) passing through the cover plate and firmly connected with the impact apron (4).

Abstract: A fragmenting rotor assembly for waste wood and other fragmentable material has a drive shaft and mechanism for driving the shaft in a direction of rotation. A series of radially projecting hammers are situated along the axis of the shaft and powered by the shaft. Fragmenting knives are removably secured to the leading outer portions of the hammers and deflector members are mounted in radial alignment with said hammers and have outer ends traveling in a circumferential path of lesser radial extent than the circumferential path of the knife edges. The rotary paths of axially adjacent knives axially intersect along the axis of the shaft.

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 knife holder for a chipper disc. A knife holder for boding a knife has a first clamping portion and a second clamping portion for clamping the knife therebetween. One of the clamping portions pivots about a pivot point for clamping the knife and for releasing the knife so that it may be easily removed from the knife holder. In the relative position of the clamping portions in which the knife is clamped and in their relative positions in which a space is opened up around the knife permitting its removal, the clamping portions are rigidly disposed with respect to one another.