Abstract: The invention is a waste processor which incorporates the advantages of the chipper knife holder 100, swing hammers 50 and hog 120. A swing hammer 54 is used, providing for the use of all the kinetic energy stored in the swing hammers 54 together with good material contact. The swing hammer 54 profile is designed to spread the impact force over a large area, thus increasing the life of the swing hammer 54. If necessary, the swing hammers 50 can be locked to the rotating disk assembly 18, preventing their contacting any material. Hog hammers 120 are placed immediately behind the swing hammers 50. The position of the hog hammers 120 is such that they provide room for the swing hammers 50 to recoil, but are close enough to impact the material in approximately the same place as the swing hammers 50. The hog hammers 120 use the much larger amount of kinetic energy that is stored in the rotating disk assembly 18.

Abstract: A rotor for an impact crusher which has rotor plates distributed along the length of a rotor shaft and secured to the shaft. Aligned, open, recessed cavities in multiple rotor plates receive a backing bar spanning the plates and the bar is secured to the plates. A removable hammer bar seats in the cavities and rests against the backing bar. Wedges held in place by retainers hook the hammer bar in place.

Abstract: The invention concerns an apparatus and process for making foods coated in bread crumbs.The apparatus has a crumbing apparatus for converting loaves, of bread into breadcrumbs; a coating location whereto fresh crumbs are delivered from the crumbing apparatus; and a conveyor for transporting substrate food to the coating location for coating with the crumbs and for transporting coated food away from the coating location.The process involves the steps of obtaining baked and staled bread; inserting the bread into an apparatus which converts the bread into crumbs and substantially immediately coats the crumbs onto a substrate food. For conversion into crumbs, bread is supported on rods over a rotating drum having teeth which project between the rods to engage the bread. Thus bread too moist for grinding can be crumbed.

Abstract: A fiberizer is described having a rotor to which plural hammers are mounted for fiberizing a sheet of fibers delivered to the rotor as the rotor is rotated. A feed mechanism utilizing a pair of seal rollers, at least one of which is driven, is configured for effective delivery of both wet or dry sheets to the fiberizer. The hammers are configured to minimize dead spaces within the fiberizer. In addition, air flow is directed through the fiberizer to minimize accumulations of fibers therein. Furthermore, an optional liquid flushing mechanism is provided for periodically cleaning the fiberizer during use.

Abstract: A comminutor for reducing large diameter wood products and stumps to size, comprised of a reduction chamber, with an impact rotor positioned concentrically therein, in combination with a housing, drive motor and infeed chute. The impact rotor is formed with a plurality of horizontally elongated impact hammers at its periphery. The impact hammers are arranged in sets of impact hammer rows oriented at an angle to the rotational axis of the impact rotor. Each set of impact hammers has one row of hammers having radial angles increasing along the rotor's longitudinal axis in the axial direction of the rotor and a second opposing row of hammers having radial angles decreasing along the rotor's longitudinal axis in the axial direction of the rotor.

Abstract: The tree stump grinder is adapted to be attached to a backhoe or an excavator with a boom and a stick. The tree stump grinder includes a yoke which is pivotally secured to the stick. A hydraulic grinder swing cylinder is provided to pivot the yoke relative to the stick. Fixed stub shafts are secured to arms of the yoke. Circular end plates are attached to the respective hubs. One hub is rotatably journaled on one stub shaft and the other hub is rotatably journaled on the other stub shaft. A hydraulic motor is fixed to one stub shaft and drives the other hub. A grinder drum is attached to the circular end plates and encloses the hydraulic motor. Oil is supplied to the hydraulic motor through passages in one of the stub shafts. A plurality of block and bit assemblies are attached to the outside surface of the grinder drum. An anchor assembly is also pivotally attached to the stick.

Abstract: Multiple size-reducing actions of heavy solid waste are carried out during each unidirectional rotation of a ballast-weighted drum rotor means having impact-cutter bar means projecting in fixed position about its drum surface. Feedstock contacts the rotating rotor means and is propelled against an anvil surface. Frangible materials are split and/or otherwise fragmented during such initial stage. Continued rotation cuts or crushes larger feedstock product with maximum dimensional aspects determined in part by the radial projection of the impact-cutter bar means as the latter move into a zone defined by a grate partially circumscribing the rotor means. Intermediate product in the space between the rotor drum and the grate passes through apertures in the grate or is driven into and sheared at such apertures which determines maximum cross-sectional dimensions of size-reduced product. The configuration of such grate apertures facilitates shearing of intermediate product.

Abstract: A hammer mill for crushing ore and the like materials comprises a cylindrical case provided with armor plates on its inside, and a rotor journalled in the case and carrying a plurality of hammers, as well as anchor means for holding each hammer to the rotor at a position facing the armor plates, which includes a mortise, formed at the rotor periphery and having opposed walls convergent outwardly and substantially dovetail-like, and a tenon formed on the hammer integrally therewith and having a cross-sectional shape which matches that of the mortise, said tenon engaging with the mortise walls and being urged, by the centrifugal force developed within the hammer by the rotating rotor, to wedge itself stably in between said mortise walls.

Abstract: A Hammer mill, comprising discs (1) mounted on a drive shaft (2), crosspieces (3) for spacing apart the discs (1), hammers (4) mounted between the discs (1) at intervals defined by the crosspieces (3) and spindles (5) for swingably mounting the hammers (4) and passing through the discs (1). A device (6) is provided for selectively individually locking the hammers (4) in a retracted position in the drum which drives the hammers (4), for releasing the hammers for outward swinging. The locking device is a fluid-actuated peg (7) insertable in and withdrawable from a hole (9) in each hammer.

Abstract: Shear pins indirectly interconnecting breaker rings and shaft components of the rotor assembly of the apparatus are so located and mounted as to be readily replaceable when sheared by relative rotative movement between the components. Relative rotative movement of the components is detected and changes the operating condition of the drive motor and/or a signaling device associated with the apparatus.

Abstract: The impeller bars on an "open" type rotor of an impact crusher are clamped to each disc of the rotor by means of pairs of cooperating wedges. Each pair of wedges consists of a first wedge acting radially outwards of the rotor between the disc and the impeller bars and a second wedge acting axially of the rotor between the disc and the first wedge to drive the first wedge radially outwards. Means including a hook are also disclosed for lifting the impeller bars onto the rotor for initial installation as well as for later repositioning of the bars to compensate for wear.

Abstract: Grinding mill apparatus for grinding biomass, said apparatus including a substantially box-like steel housing having a top inlet and a bottom outlet; a plurality of anvils pivotally engaging the housing and held in a fixed position by shear pins; a rotor mounted for rotation about a horizontal axis within the housing, the rotor provided with cutting bars orbiting in close proximity to the anvils for fragmenting the biomass; and a grate system for discharging material of a desired size through the outlet of the housing. The housing includes a back wall which is integral with the side walls for reducing metal fatigue and also includes a side wall access opening with access cover for insertion and removal of the cutter bars of the rotor and insertion and removal of grate member sections. The rotor includes two or more sections, each section defining a portion of a cylinder axially offset from adjacent sections for aerodynamic reaons and for reasons of strength.

Abstract: The invention relates to a rotor for a rebound crusher in which the beater blades (5), retained in marginal recesses (4) in rotor discs (3) are positively retained by an axial locking system (7, 8) disposed on the rear side of the beater blades (5). On the front side of the beater blades (5) protective caps (10) are disposed on the discs (3) to maintain the axial positive locking system (7, 8) and protect the discs (3). To secure the beater blades (5) against axial displacement, the beater blades (5) are secured by a positive locking system comprising a recess (22) and a nose (21) engaging therein with clearance. To keep the protective cap (10) free from loading by the beader blade (5), in the side of the protective cap (10) adjacent the beater blade (5) a window (24) is provided into which a projection (15) of the disc (3) extends which forms an abutment (16 ) for a bearing surface (17) of the beater blade (5).

Abstract: An impactor for breaking large, boulder size, ferrous metal pieces comprises a massive, horizontally axised, cylindrically shaped rotor having spaced apart, outwardly extending, impact heads. The rotor is formed of a number of axially aligned, thick, large diameters disks that are secured together face to face. Deep notches formed in the circumferential edges of the disks provide head mounting pockets within which inner portions of the heads are received. Each of the heads has an outer portion which projects radially outwardly of the rotor and has a small impact area. Large metal pieces are gravity fed, down a chute, into the paths of rotation of the heads impact areas, below the horizontal axis of the rotor. The pieces are struck by the downwardly moving head impact areas to momentarily receive an enormous concentrated force resulting from the rotation of the rotor mass.

Abstract: This invention discloses a rock, stone or other solid material crushing device. It consists of a crushing chamber, a rotator shaft running through the chamber, an outer cutting blade secured to the chamber, a set of outer cutting bars which are secured to a disk which is secured to and rotates with the rotator shaft and acts as a mechanism for breaking apart the solid material to be crushed. Within the rotational arc of the outer cutting bars is a pair of inner cutting blades. Inside of the inner cutting blades and attached to the rotator shaft disk is a second set of cutting bars, i.e. the inner cutting bars. The inner cutting blades are secured to the outside of the crushing chamber and intrude into the crushing chamber such that the outer cutting bars rotate outside of the pair of inner cutting blades and the inner cutting bars rotate inside the inner cutting blades.

Abstract: A hammer assembly for a rotary material crusher having a rotor. The hammer assembly includes a hammer member and a base member. The base member is mounted at one of its ends on the rotor. The hammer member is mounted on the other end of the base member. The hammer member and base member each have two pairs of concave and convex surfaces, one for absorbing centrifugal forces and the other for absorbing impact forces and meshing, one surface with the other. The pair of concave and convex surfaces for absorbing centrifugal force are behind of the centrifugal force radial line of the hammer member in the direction of rotation of the rotor.

Abstract: A device for comminuting small ice bodies includes a housing without top and bottom walls in which a horizontally extending shaft is rotatably mounted. Disks forming beater knives are mounted on the shaft and counterknives in the form of cross-shaped breaking members are attached to the housing. Groups of adjacent disks define chambers in such a way that each chamber receives exactly one ice body. The chambers are arranged distributed over the circumference of the disks and along the length of the shaft in such a way that only a single ice body is comminuted at a given time. This reduces the power required for driving the shaft to a minimum.

Abstract: A mineral breaker is disclosed having a rotary central shaft upon which a plurality of collars (10) are non-rotatably secured. Each collar has a first pick support ring (13) secured at each of its ends with two second pick support rings (19) slidable on the collar between the first support rings. Each pair of first and second support rings defines between them a plurality of separate locations for picks (35). An infill ring (28) formed in two halves is fitted on the collar between the two second support rings (19) and forces the rings (19) against the picks to secure them tightly in position. A pair of threaded bolts secure the two halves of the infill ring together and also allow quick and easy release of the halves, and thus removal from the collar to allow the rings (19) to be slid from the picks, when pick replacement is required.

Abstract: A pulverizing mill is disclosed, suitable for wet or dry foodstuffs, chemicals, plastics and pharmaceuticals, having a reversible welded multi-bladed rotor which is substantially seamless and crack-free so as not to catch and retain particles of the material being pulverized. The rotor blades are supported parallel to the rotor's central axis in a picket-fence configuration in which blade position are staggered from one rotor segment to the next whereby the entire rotor shaft internal volume is swept by one or more blades during each revolution. The blades are supported at predetermined points which raise the rotor maximum safe operating to achieve a higher output of pulverized product. The mill inlet housing is attached by quick-release toggle fasteners associated with fiber-optic sensing means to prevent mill operation unless the housing is fully secured in one of two proper operating positions.

Abstract: The fiber depither consists of an upper array of feeder blades and a lower array of fan blades. These blades remove more particulate while resulting in less fiber damage.

Abstract: A flail device for use in conjunction with debarking or delimbing apparatus is disclosed. The device comprises a rotatable drum having a plurality of circumferentially spaced-apart rows of longitudinally spaced-apart openings, a plurality of rods extending longitudinally within the drum, each of the rods positioned radially inward of the openings, and a plurality of guide plates rigidly attached to the drum for rotation therewith. The guide plates have slots sized to removably receive and support the rods. A plurality of chain flails are attached to each of the rods, attachment being by extension of the rod through an interior aperture of an attaching link of the flail. The rods have a size in the radial direction to substantially fill the aperture of the attaching link to minimize the radial movement of the attaching link relative to the rod during usage.

Abstract: A rotatable drum, which bears beater bars and is intended for use in pulverizing metallurgical slag, is defined by abutting conduits which are welded to one another and to a tubular support. The arrays of conduits, through which a coolant is circulated, is interrupted at a number of locations spaced radially about the support where radially outwardly extending beater bars are welded to the same support. The beater bars are also provided with internal passages through which the coolant is circulated.

Abstract: An apparatus and method for treating for disposal organic waste material carried within a sludge, by adding to the sludge an alkali metal silicate and a setting agent, is disclosed. The apparatus includes several mixers, each having a trough with an input end and a discharge end, at least one rotatable shaft mounted longitudinally along the trough, a plurality of blades mounted to the shaft, and a drive for rotating the shaft. The sludge is deposited within a first mixer, and then directed from the mixer into a tank. A series of chopper pumps recirculate the sludge into the tank, and alternatively, the sludge may be passed through an additional mixer. Leaving the tank, the sludge is directed into a second mixer at its input end. Water is introduced at the input end, and a setting agent is added along the trough at a point adjacent the input end. Further along the trough, an alkali metal silicate is introduced. The mixture is recovered from the second mixer, and carried to a remote location for setting.

Abstract: An article breaking device, particularly a glassware breaking device for making cullet, is described. The articles to be broken pass down a chute into a downwardly open chamber. Within the chamber is a rotating member which is not circular in horizontal cross-section and which is rotated at high speed around a vertical axis. The articles to be broken impact on the member, are broken and the broken pieces fall out of the open base of the chamber. The rotating member is preferably frustoconical with a plurality of vertically running external ribs and a plurality of horizontally extending blades.

Abstract: An apparatus for scraping bark from a log includes a plurality of radially extending torsionally resistant elastomer flailing elements secured to, spaced longitudinally of, and angularly disposed around the periphery of a rotatable drum. Attached adjacent the free end of each elastomer element is a broad metallic cutting element which scrapes bark from a log. Each flexible cutting member comprised of an elastomer element and a broad cutting element attached thereto conforms to the shape of a log advancing relative to the cutting member and scrapes a substantial portion of bark therefrom.

Abstract: A cultivator adapted to straddle a windrow of material such as compost. A frame has an improved disintegrator and aerator comprising a horizontal drum crosswise of the windrow with a plurality of cultivator blades disposed in two helical arrays between opposite ends of the drum, the arrays being circumferentially spaced 180.degree. apart about the drum and extending equal distances on opposite sides of a central, longitudinal, vertical plane along the center of the frame. The blades on the right and left sides of the drum have paddle portions at their ends transversely offset toward the central vertical plane and contoured to move material sidewise and heap it up into a peak along the center of the windrow.

Abstract: Apparatus for crushing fragments of mineral material comprises a rotary crusher mounted above, and co-operating with, a scraper-chain conveyor. The rotary crusher has a cylindrical body provided with a plurality of first, second and third rows of chisels. The chisels are detachably mounted in holders fixed to the cylindrical body. The chisels are all the same, but the holders are of different sizes so that the chisels of a first set have a longer radial reach than the chisels of second set, which in turn have a longer radial reach than the chisels of a third set. Each first row has chisels of the first and second sets, and each of the second and third rows has chisels of the third set. The provision of the chisels of the first and second sets having longer radial reaches enables the mineral material to be drawn into the crushing gap between the rotary crusher and the scraper-chain conveyor and broken up more efficiently.

Abstract: A plurality of rings is mounted on a shaft for rotation therewith with each ring having a plurality of equally angularly spaced bits mounted thereon to fracture material. Each of the rings has an insert mounted in a recess in its periphery between each adjacent pair of the bits. The insert has an angled edge to fracture, rather than crush, the material between the bits as the rings are rotated.

Abstract: A striker bar for a rotary cage grinder in which the impact-receiving portions of the bar are of an abrasion resistant ceramic, such as aluminum oxide, silicon carbide, or tungsten carbide. The bar includes a block of the ceramic, preferably formed in sections abutting end-to end, adhesively affixed to an angle iron mounting, which is removably attached to supporting structural members in the cage.

Abstract: The invention relates to mining and metallurgy. The apparatus comprises a feed device, and a discharging device and a rotor mounted inside a housing formed with toothed sprockets set rigidly on a shaft. The sprockets are mounted in series on the shaft of the rotor and carry crescent-shaped teeth, a concave surface thereof being arranged radially with respect to the rotor and the cross section being a T with a web located at right angle to the axis of said rotor and with a flange situated in parallel to the axis of said rotor. The invention can most advantageously be employed for crushing a hot agglomerated mass and stabilizing sinter lumps in terms of shape and mechanical strength, but may also be used to crush large coal lumps, slag skulls, particularly, ones in hot state, flagstone blocks, frozen materials and the like.

Abstract: A machine intended for comminuting objects which are bulky and/or resistant to destruction comprises two shafts bearing comminutor rings disposed alternatingly along each of the shafts. The rings are formed of separate elements, at least some of which are comminutor elements having comminutor noses. The elements each have an inverted-U profile and are secured to the shafts by fitting over shaft-collars integral with the shafts. Journal-and-screw assemblies passing through precision bores in the sidewalls of the elements and in the shaft-collars firmly fix the elements to the shaft-collars, and thus to the shafts. The comminuting machine is very sturdy and withstands very high axial mechanical stresses.

Abstract: A blower-beater mill for drying and milling material with a beater body and impeller arranged on the mill shaft. The beater arms of the beater body are fastened between hub rings on the shaft and water cooling is applied along the longitudinal axis of the mill shaft. The shaft is enclosed by a casing which extends to the impeller and is spaced from the shaft. In the region of the beater body, the casing has openings for the beater arms. The mill shaft also has hub rings between the beater body and the impeller. The casing is made up of U-shaped rings which overlap one or several hub rings. The rings have vertical legs inserted into passages between the hub rings. A passage behind the beater portion may be enlarged for fitting insert pins in the direction of the hub pins and lock washers may be placed between the front faces of the insert pins and the side faces of the hub rings. A gap may be located between the deflection disk of the impeller and the last U-shaped ring.

Abstract: A crushing-machine housing accommodates a rotating crushing roller whose periphery travels in the same direction as the conveyor which feeds material through the crushing machine, the clearance between the crushing roller and such conveyor determining the maximum volumetric rate at which material can be fed through the machine. The crushing roller is of crankshaft-like configuration, having a crank pin carrying crushing implements located far from the crushing-roller rotation axis, to either side of the crank pin a respective crank web whose center of gravity is eccentric with respect to the crushing-roller rotation axis, and to either side of the crank webs a respective crank journal rotatably mounted on the machine housing. The crank webs of the crankshaft-like crushing roller carry crushing implements located on the side of the roller rotation axis diametrally opposite to the crank-pin tool-carrying part of the crushing roller.

Abstract: A beater mill comprising a cylindrical housing which accomodates a rotor carrying at least two arcuately spaced groups of beaters, the beaters from group to group being axially offset, the cylindrical jacket of the housing being formed as a peripheral sectional screen, an axial inlet for material to be milled being provided adjacent the rotor axis, the rotor arms being formed as fan blades and the said inlet including a distributor means for the air and material taken in through the inlet.

Abstract: A rotor for a coarse reduction impact crusher with exchangeable blow bars including a rotor disk to be driven in rotation with a plurality of radially facing recesses in the periphery and the bars locked in the recesses between a supporting element welded in the recess on the trailing side thereof and a shoe being U-shaped and locked over a projection on the rotor disk with a pair of clamping keys securing the shoe with one of the keys being U-shaped, and the keys being removable axially, and the blow bar having forwardly and rearwardly extending teeth with inclined outwardly facing surfaces to lock beneath corresponding surfaces on the supporting element.

Abstract: A comminution device having replaceable blade assemblies which are used, preferably, as stators. The blade assemblies can be replaceably affixed to the housing of the machine when used as stators or may be replaceably affixed to a rotating arm when used as rotors. The blade assemblies are comprised of a plug member that may have threads on part of its outer periphery in order to be threadedly connected to a stationary housing or rotatable member of a machine. A slotted portion is formed in the plug member and one end of a cemented hard metal carbide blade is disposed in said slotted portion. A collar is shrunk fit over the periphery of the slotted portion and provides the clamping force necessary to hold the blade in assembled relation to the plug member. Tapering cooperating elements of abutment are provided between the walls of the slot and the sides of the blade in order to urge one end of the blade into firm contact with the bottom of the slotted portion.

Abstract: A device for the treatment of waste materials composed chiefly of paper and plastic film is equipped with a stellate rotor rotatably mounted within a casing of the device at a location through which the waste materials are passed. The stellate rotor is equipped with a plurality of rigid arms having ends which engage portions of the side walls of the casing to enhance recovery and separation of the paper and plastic film. Because of the rigid structure of the arms of the rotor, the ends of the arms engaging the casing side wall move along a circular path having a fixed radius. The casing side wall engaged by the ends of the arms of the rotor includes a curved portion extending from a first end thereof spaced away from the circular path of the rotor ends to a second portion which is coincident with the circular path of the rotor ends.

Abstract: The flail device comprises a rotatable drum, a series of circumferentially spaced channels extending lengthwise of the drum, support means in each channels, a rod received in each support means, and flexible flails attached to each support means at longitudinally spaced intervals thereon; each flail consists of a length of chain links and the rod in each support means passes through the end link of the flails which are extendible under centrifugal force when the drum is rotating.

Abstract: The present invention relates to a rotor construction and particularly one in which the rotor includes a plurality of open-faced knife sets each having at least a pair of longitudinally spaced plates. At peripherally spaced locations between said plates, relatively heavy material contacting blocks are disposed. The blocks in turn provide a seat for a knife blade. Material fed to the chamber of a granulating machine in which such rotor is mounted, is contacted by the plates and the blocks with a pummelling action and by the knives in a cutting action. The material so pummelled and cut is thereafter free to pass immediately into open face portions or pockets disposed between the plates of each knife set. The material contacting faces of the plates and the blocks are provided with a hard faced surface. The rotor is referred to as being of "club-foot" construction.

Abstract: A breaker tooth member for apparatus for the reduction of solid material such as wood, plastics, metal and the like comprises a metal head having an integral projecting mounting shank having an enlarged portion adjacent the head adapted to fit snugly in an enlarged mounting bore portion of a support ring, the head being formed opposite the shank with a recess having a flat back face intersecting a ledge defining a locking formation, and an integral harder wear resistant metal sharp edged element is mounted in the recess flush against the back face, that element being correspondingly formed along one edge to interlock with said ledge, and the element is fixed on the head by a plurality of pins having tight friction fit in aligned bores in the head and the element.

Abstract: A blower beater mill for grinding and drying, in which a rotor has a beater portion located on a mill shaft and a fan impeller. Beater arms of the beater portion are fastened between hub rings of the mill shaft. The shaft is, furthermore, water-cooled along its longitudinal axis, and shaft cams of the hub rings are enclosed at a distance by an outside jacket having cutouts for passage of the beater arms. The space between the outer jacket and the shaft cams of the hub rings may be filled with insulating material. The shaft cams of the hub rings may have also a heat-reflecting coating. The width of the cutouts may be greater than the width of the beater arms by the amount of maximum axial expansion of the outer jacket relative to the mill shaft. The outer jacket, moreover, is restricted to the portion of the beater part located underneath the mill intake, and reaches to the first row of the beater arms.

Abstract: A blower beater mill in which a rotor has a beater portion provided with beater arms in the form of two interconnected parts. Beater arm bases are fastened in hub rings of the shaft of the rotor, and fastening elements of two beater arm portions are located above shaft crests of the hub rings. Cover elements are located axially with the rotor in a free space between the beater arm bases, and these cover elements are located on a diameter between the shaft crests of the hub rings and the fastening elements of the beater arm portions. Openings pass through the beater arm bases between the cover elements and the shaft crests of the hub rings in the axial direction of the rotor. An opening in one beater arm base is aligned with the opening in the corresponding beater arm base of the following beater arm rows. The cover elements have an outside jacket which surrounds the shaft crests of the hub rings at a distance. The jacket has cutouts for accommodating the beater arm bases.

Abstract: A blower beater mill for grinding and drying operations in which a rotor is provided with a beater portion located on the mill shaft and has also a fan impeller. Beater arms of a beater portion are fastened between hub rings of the mill shaft. The shaft is water-cooled along its longitudinal axis. Shaft crests of the hub rings are enclosed by a jacket at a spaced distance therefrom. The jacket is made of individual rings through which the beater arms pass. The width of these rings is slightly larger than the spacing between two adjacent rows of beater arms. The rings, moreover, overlap in the area of cutouts of the beater arms. The rings may have U-shaped profiles with vertical legs inserted together with the beater arms into grooves between the hub rings. The space between two adjacent U-shaped rings and two adjacent beater arms, located within one beater arm row, is covered by sheet metal connected to the rings and the beater arms.

Abstract: An impact pulverizer mounts a rotor concentrically within an octagonal shaped reduction chamber. The rotor has a substantially solid core and generally radially extending impact blades, each of which slopes in the axial direction of the rotor. Upon rotation of the rotor, the blades strike pulverizable material and propel the same radially of the chamber and against the interior walls thereof. The slope of the blades moves the pieces longitudinally of the chamber from the intake toward the egress end in a generally spiral rotational motion as the pieces ricochet off the interior walls and back against the rotor blades, striking each other as they so progress. The striking and ricocheting cause the pieces to break up and be reduced in size as they travel towards an outfeed opening.

Abstract: In an upper portion of a housing is a material-receiving chamber below which is a lower portion that defines a comminution chamber. An apertured screen is disposed in the bottom of the latter for permitting the gravity discharge of material which has been comminuted. Mounted horizontally within the lower portion is a shaft, and that shaft is driven in rotation. A plurality of hammers project rigidly outward from the shaft with the hammers being arranged in an assembly which includes a plurality of hammer-carrying elements individually spaced successively along the shaft. The hammers on each element are circumferentially spaced successively around the shaft. Moreover, each hammer includes a material-impacting face of concave arcuate conformation in the plane of movement of the hammers.

Abstract: A comminuter for metal turnings and the like has a rotor rotatable on a support about a fixed axis and carrying at least one outer rotor element and at least one inner rotor element which define a cylindrical orbit on rotation of the rotor. A housing surrounds this rotor and is formed by a U-shaped upwardly open portion of non-tapering cross-sectional shape and a flat cover part engageable over the open upper side and openable in order to clear a jam in the machine. Stator elements carried on this housing are spaced slightly from the rotor element so that as the rotor turns turnings and the like fed to the machine will be comminuted and passed from an inlet to an outlet end.

Abstract: An improved waste disposer having shredding means in a comminution chamber and a rotor rotatable within the chamber. Freely rotating impellers are provided on the rotor which rotate as the rotor is rotated. Each impeller includes at least one main cutting blade adapted to cooperate with the shredding means to comminute waste in the chamber. Each impeller also includes one or more subsidiary cutting blades for assisting in grinding such waste. The blades on one impeller are mounted in a mirror image relationship to the blades on the other impeller to provide improved comminution of the waste.

Abstract: A granulator is disclosed which has a housing with an entrance, an outlet and a granulation zone therewithin. A screen divides the granulation zone into inlet and outlet regions, a beater assembly passing repeatedly through the inlet region to force material within the inlet region through the screen and into the outlet region. A deflector applies low impact horizontal forces to the material to produce a desired distribution of the material at the outlet.A slidable screen connection can be provided to allow sliding removal of the screen without disassembly of the housing.

Abstract: A leaf collector and comminutor is disclosed having a collection receptacle in the form of a bag and a housing for delivery of comminuted tree leaves into the bag, the housing having thereon a motor driven rotary blade assembly, having a fan portion and a leaf comminuting portion resiliently mounted on the fan portion, for the suction collection and comminution of the leaves to reduce their bulk and for delivery of the disintegrated leaves into the bag, a spring held shearing bar being provided with openings for passage of end portions of the blades, the mounting of the leaf comminuting portion of the blade and the mounting of the shearing bar providing safety features in the event that sticks or stones enter the housing.

Abstract: An improved granulator is disclosed having housing defining a granulation zone. A screen is attached to the housing within this zone and a contactor device moves repeatedly toward the screen to force material through the screen. A retractor device moves the screen and contactor apart when a predetermined force is reached therebetween. A shear pin sprocket drive connection can be employed to inactivate the contactor when a predetermined force is applied thereto.