Abstract: A system and method for processing objects having contaminating particles includes the steps of shredding the objects in a shredding chamber to form a plurality of shredded fragments, wherein the shredding chamber is arranged to be substantially combustion resistant, and removing the contaminating particles from the plurality of shredded fragments.

Abstract: An electrode cap grinding and changing machine is provided. The machine includes a frame, a drive motor having an output end and a balanced floating unit, wherein the balanced floating unit is arranged on the frame, and the drive motor is arranged on the balanced floating unit, the output end of the drive motor penetrates through the balanced floating unit and then is connected with a working table having two sides, the two sides of the working table having a cap dismounting unit and a cap grinding unit drivably interconnected with the output end of the drive motor, and electrode cap storage units arranged at an outermost end of the two sides of the working table or on the frame.

Abstract: A method and apparatus for very fine grinding which uses a rotor rapidly rotating in a compatible cylindrical housing where there is an improvement of a friction inducing surface on the cylindrical face to assist in the grinding effectiveness.

Abstract: A coffee grinder includes a machine base, in which a crushing unit, a separating unit, and a grinding unit are provided. The machine base has an inlet and an outlet, and the crushing unit is under the inlet to crush coffee beans into parchments and beans. The separating unit has a rotary member and a collection container that the rotary member provides an air flow to send the parchments to the collection container. The grinding unit is between the crushing unit and the outlet to grind the beans from the separating unit and send the ground beans to the outlet. The present invention crush the coffee beans to separate the parchments and the beans, and the parchments are removed by the separating unit. Next, the beans will be ground.

Abstract: A nano grinding and dispersing assembly has a raw material feeder, a liquid supply unit connecting to the delivering pipe of the raw material feeder, a gas supply unit connecting to the delivering pipe of the raw material feeder, a pressure equalized assembly and a subsequent treatment plant. The raw material feeder has a feeding pipe connecting to the raw material feeder and a delivering pipe connecting to the raw material feeder. The pressure equalized assembly has a pressure equalizer, a pressurized feeding pipe, a gas-liquid separator, a pressure gage and a first grinding device. The first grinding device connects and communicates with the pressure equalizer and has at least one ground fluid outlet. The subsequent treatment plant connects the ground fluid outlet of the first grinding device. Therefore, the present invention completely mixes, grinds and disperses fluid to make the fluid homogeneous.

Abstract: An impact mill including a base portion on which is disposed a rotor rotatably mounted in a bearing housing, the rotor having an upwardly aligned cylindrical surface portion coaxial with the rotational axis. The impact mill is provided with a mill casing within which is located a conical track assembly which surrounds the rotor to form a conical grinding path. The mill casing is provided with a downwardly aligned cylindrical collar which may be axially adjusted to set a grinding gap between the rotor and the mill casing. The rotor is provided with a plurality of impact knives complementary with a plurality of impact knives disposed on the inside top surface of the mill casing. The conical track assembly can be a series of assembled conical sections or one unit with varied number of serrations in either a vertical or sloped configuration. This flexibility allows for greater compatibility with the feedstock being milled.

Abstract: Device for comminuting a heap of particulate material, comprising a framework-supported housing with a vertical axis which is provided at its upper end with at least one inlet opening for the heap and at its lower end with an outlet; a drive shaft which is arranged vertically and centrally in the housing and is driven by a drive motor; and a rotor which is mounted on the drive shaft and has a plurality of rotor elements which are offset in the circumferential direction and/or with an axial spacing and which extend, at least while the rotor is rotating, close to the actual housing wall in order to process the downwardly falling heap, wherein the housing has at least two housing sections arranged vertically above one another, of which the lower section, at least in the upper region adjoining the section above it, has a larger diameter than the adjoining region of the upper housing section, and the radial extent of the rotor elements in the upper region of the lower housing section is larger than the diameter of

Abstract: A grinding mill has an outer housing and a rotor mounted in the housing to form a grinding zone between the housing and rotor into which a charge to be ground is introduced. A pair of spaced rings are located at the entranceway to the grinding zone to form an annular gap through which the charge passes. At least one of the rings is adjustable to vary the gap width in response to one or more mill operating parameters. The rings control the flow of the charge into the grinding zone and reduce the size of the charge particles before they enter the grinding zone.

Abstract: Rotor for a paper stock processing machine, an anti-wear element for protecting a leading front surface of a rotor blade, and a paper stock processing apparatus. The rotor includes at least one rotor blade having a leading front surface to be protected, and an anti-wear element comprising a base body and at least one wear-resistant surface. The anti-wear element is coupled to the leading front surface. The anti-wear element includes a base body with a back side, and at least one wear-resistant working surface. The back side is formed to correspond to a shape of, and to be coupled to, the leading front edge. The apparatus includes a tank, a screen, and a rotor rotatably coupled adjacent the screen. The rotor includes at least one rotor blade having a leading front surface, relative to a rotational direction of the rotor, and an anti-wear element coupled to the leading front edge. The anti-wear element includes a base body and a wear-resistant working surface.

Abstract: A coal processing mill incorporates integral systems for coarse coal dewatering, grinding, injection of a peptizing agent into the ground coal stream before it enters an agitation zone (where the peptization process takes place), passing the treated coal and the peptized clay and ash through a separating valve and passing the separated coal on to final drying. In other embodiments, ash and pyrites (of much higher density than coal) are separated from coal and the coal can then be fired.

Abstract: Process and apparatus for reducing the size of particles of a flowable material. The process includes a stream of the fluid and the particles that is fed under pressure. The particles are subjected to expansion forces in a first dimension while they are simultaneously fed through at least one continuously narrowing constriction. While the particles in the fluid are conveyed through the narrowing constriction, they are subjected also to expansion forces in a second dimension. The apparatus may include a device which pressurizes the fluid and its particles which are fed through at least one inlet into a space. This space is defined from two sides only by at least one pair of opposing walls. Thus, the walls form a narrowing constriction up to a gap of smallest cross-section. This gap communicates with the outlet.

Abstract: Integrated first stage and second stage reduction mechanisms reduce coal, minerals, biomass, and other materials. A portion of the reductive work is done in the first stage by passing centrally fed feed material centrifugally from rotating rings to counter-rotating rings with destructive effects. The resulting material, significantly reduced in size, subsequently is stripped of oversize in the second stage by passing through a closely spaced and specially contoured final pair of annular rings or crushing elements between which particles larger than the limited space are crushed.

Abstract: Integrated first stage and second stage reduction mechanisms reduce coal, minerals, biomass, and other materials. A portion of the reductive work is done in the first stage by passing centrally fed feed material centrifugally from rotating rings to counter-rotating rings with destructive effects. The resulting material, significantly reduced in size, subsequently is stripped of oversize in the second stage by passing through a closely spaced and specially contoured final pair of annular rings or crushing elements between which particles larger than the limited space are crushed.

Abstract: A cylindrical chamber has a drive shaft rotatably mounted therein and extending along substantially the entire longitudinal extent thereof. This drive shaft is rotatably driven by a motor preferably at a speed of about 3600 rpm. Solid particles to be comminuted which may be of coal, limestone/dolomite, or hydrated lime are fed into the chamber. Pressurized air is fed into the bottom of the chamber. Uplifting pressure for driving the air and particles upwardly in the chamber may be provided by pressurized gas in conjunction with a stationary velocity head. The upwardly driven particles are first driven through a plurality of rotors which are driven by the shaft and provide a centrifugal force which comminutes the particles. The particles are then driven through a plurality of semi-permeable screens which are rotatably driven by the shaft and further comminute the particles to a micronized state. To lower NO.sub.x and SO.sub.

Abstract: The invention concerns a versatile mill, particularly the construction of its drive, central and clamping part with the fitting of knives, and the cooling of the milling part. The versatile mill is intended for processing food products and other organic and inorganic substances in the sense of milling, chopping, grinding, mixing or disintegrating the parts inserted into it in an enclosed processing system.

Abstract: An apparatus for deagglomerating powder in a mixture of liquid and powder, which contains a mixing tank, a rotatable shaft, at least two agitator disks connected to such shaft, and a vortex suppressor disposed above the topmost of such disks at a distance which is from about 30 to about 60 percent of the inside diameter of the mixing tank. The mixing tank has a height which is from about 9 inches to about 20 feet, and an inside diameter of from about 3 inches to about 3 feet; and the ratio of such height to such inside diameter is at least about 3/1. The distance between the agitator disks is from about 50 to about 200 percent of the diameter of the first agitator disk; each of such disks contains from about 4 to about 12 teeth attached around its periphery; the frontal area of each of said teeth is from about 0.02 to about 1.5 square inches; and each of such teeth is so attached that it forms an angle between the front face of the tooth and the radius of said disk of from about 5 to about 45 degrees.

Abstract: An apparatus for treating the surfaces of solid particles has at least a first cylindrical treating chamber and a rotary shaft and a first rotor having two or more blades on its front face, contained in the first cylindrical treating chamber. A powder charging aperture for introducing the solid particles into the first cylindrical treating chamber together with gas is provided at the center of the front wall of the first cylindrical treating chamber, opposed to the front face of the first rotor. A first powder discharging aperture for discharging the treated solid particles is provided at the center of the rear wall of the first cylindrical treating chamber, opposed to the rear face of the first rotor. The first rotor is connected with the rotary shaft and rotated by the rotation of the rotary shaft. The height H.sub.a of the blades, the gap L.sub.1a between the tip of each of the blades and the front wall, the largest diameter R.sub.1a of the first rotor and the gap L.sub.

Abstract: A cylindrical vessel has a drive shaft rotatably mounted therein and extending along substantially the entire longitudinal extent thereof. This drive shaft is rotatably driven by a motor at a speed of 1,500-10,000. Solid particles to be comminuted which may be of coal and limestone/dolomite or lime are fed into the vessel. Connected to the shaft and rotatably driven therewith is a centrifugal compressor fan which forms an uplifting air curtain which suspends the particles. Mounted above the compressor and rotatably driven by the drive shaft are a plurality of rotors, screens, and a disc mounted in an aperture formed in a fixed plate which forms a circular vortex in the space between the disc and the plate. The particles are comminuted by the successive action of the rotors, screens and the circular vortex, larger particles being repelled for further comminution while the finer particles are fed from the vessel to cyclonic classifiers.

Abstract: A cylindrical vessel has a drive shaft rotatably mounted therein and extending along substantially the entire longitudinal extent thereof. This drive shaft is rotatably driven by a motor at a speed of 3,000-10,000 rpm. The output of a roller mill or the like having particles of the order of -200 mesh to be further comminuted, which may be of coal or other minerals, are fed into the vessel. Connected to the shaft and rotatably driven therewith is a centrifugal compressor fan. This fan with additional air intake to the vessel provides a high velocity air curtain which suspends the particles and drives them upwardly. Mounted above the compressor and rotatably driven by the drive shaft are a plurality of semipermeable screens which comminute the particles to bring them to a superfine state. Particles which are not comminuted to a superfine state are repelled by the screens for further comminution.

Abstract: The invention relates to an apparatus for recycling synthetic leather. The primary object of the invention is to provide an apparatus for recycling synthetic leather which can effectively separate out the resin from the synthetic leather.

Abstract: A micronizer includes a housing having a chamber in which a vertical array of impeller discs is disposed. Impact members are disposed on the impeller discs. One, or more, of the impellers have impact members that overhang circular peripheral edges of the impeller discs. The rotational speed of the array of impeller discs may be varied by adjusting the speed of a variable drive motor. The rate of air flow through the array of impeller discs may be varied by adjusting the speed of a fan, which is independent of the speed of the array drive. A plurality of air deflector plates mechanically cause downward force vectors to deflect a combined pulverulent air-material mixture downwardly toward said rotating impact members.

Abstract: A chain beating type crusher includes a crusher vessel (3), a shaft (7) provided centrally thereof and capable of being rotated at a high speed, and a plurality of beating chains (11) provided in a plurality of axially spaced-apart stages in each of which a plurality of radially spaced-apart chains are formed on the shaft. With high speed rotation of the shaft the beating chains in the individual stages are caused to undergo high speed revolution to form respective bearing zones. In order to return an object scattered toward the inner surface of a peripheral wall (4) of the crusher vessel back to the beating sone, a plurality of guide members (15) are mounted on the inner surface and each have a surface inclined toward the beating zones in the direction of revolution of the beating chains. The beating chains are mounted on the shaft such that they are each positioned in correspondece to the mid position between adjacent ones of them in the next stage.

Abstract: A method and apparatus for the dry grinding of solids, comprises initial coarse grinding of the solids in a controlled vortexing of a fluidized bed and directing the solid fine particles generally upwardly into a vortex grinding zone and grinding the upwardly directed solid particles in the vortex grinding zone by passing a portion of the particles through the vortex grinding zone. The vortex grinding zone comprises at least one successively vertically disposed grinding stage comprising passing particles upwardly through at least one horizontal vortex zone of an annular gap, defined by a stationary plate with a circular aperture, hereafter cleaning up the upward moving product mix by eliminating coarser particles by gravity separation with a centrifugal expelling fan and subjecting the remaining part of the upwardly particles to the vertical vortexing of a rotating semipermeable means, defined by a rotating assembly containing a broad mesh screen therein.

Abstract: An insulation blower having hands-free metered feeding. Insulation is stripped from a supply bale and fed into a plurality of chambers of a rotating chamber wheel. The rate at which insulation is fed into the chambers is metered by a feeder assembly which eats through the bale. As the filled chambers sequentially pass through an air lock, the insulation therein is blown out of a lower airlock port and into a delivery tube. Air from a blower is introduced into the airlock through a metered airbox which allows adjustment of the amount of air delivered to the airlock and hence the rate of insulation blown through the delivery tube. Closing off the airbox completely causes air from the blower to enter the delivery tube directly (bypassing the airbox and airlock) in order to clear obstructions in the delivery tube.

Abstract: According to the present invention there are provided a method and an apparatus capable of disintegrating used paper into long pulp fibers without tearing it mechanically. In the apparatus, a wall surface having an undulating section is formed on an inner side of a gas flow path, with a current of air having a velocity component parallel to the wall surface and a velocity component perpendicular to and striking against the wall surface is allowed to pass through the gas flow path. Finely cut used paper pieces are allowed to pass through the gas flow path while being carried by the air current. The parallel velocity component of the air current is set at 40 m or more. An impeller is mounted within a circular casing body having an inlet port and an outlet port, and undulating teeth are formed on the inner peripheral surface of the circular casing body. The used paper, which is sucked in from the above inlet port together with the air current, is cut beforehand into pieces.

Abstract: A grinder of solids or solids in liquids has a multiple milling stages. A rotating disc plate carries cutting elements on one side and hammer elements on another, both located at the circumference of the disc plate. The disc plate is rotated in a screened chamber to which the solids or the liquids containing solids to be ground are introduced. Ground product or slurry containing disintegrated solids is passed through the screen before discharged. The use of disc plate and milling elements reduces required torque, leading to improved energy efficiency and results in better performance of the grinder.

Abstract: Grain is fed from a hopper to a horizontally oriented adjustable speed steam heated auger driven by a variable speed drive. The auger is long enough (approximately twenty inches) that temperature controlled steam fed to a plurality of inlets along the auger as related to the rate of grain movement through the auger heats the grain therein to approximately three hundred degrees fahrenheit. Then it is dropped through a grain outlet opening into a high velocity cold air stream temperature shocking the hot grain causing a sudden contraction of grain outer layers causing them to crack and loosen from the grain core. The grain is then fed through tubes to space between a rotatable internally rubber (or soft plastic) sheet layer sheathed inner surface outer mill member fitted to and rotatable about a truncated cone member having outer surface metal channel members angled approximately forty five degrees adjacent at the top and diverging at the bottom.

Abstract: The thermal insulation blower of the present invention is built around a vertically oriented air lock system. The insulation blower is capable of being configured for high delivery rates suitable for open area blowing and is capable of being reconfigured for lower delivery rates as a through-the-blower system for closed area blowing operations. The insulation blower includes a metering feeder assembly which can be adjusted to control the rate at which a bale of insulation is ripped and fed into the air lock system. The thermal insulation blower of the present invention also includes a bypass system around the air lock which serves to automatically clear impending plugs of insulation material in the delivery hose.

Abstract: A method for comminuting material (which in one example may be a plastic or non-plastic material) contained within a plasticized matrix with a machine comprising a mechanism for comminuting said non plasticized matrix and dispersing the material throughout the matrix. The mechanism has at least two separate stages (each stage preferably including stationary plates and non-stationary plates), which cooperate to shear the material and to distribute, disperse and comminute the material into finely comminuted material distributed and dispersed throughout the plasticized material. The finely comminuted material is substantially distributed throughout the plasticized matrix and is so small and so dispersed throughout the plastic so as not to degrade unduly any use to which the plasticized matrix when solidified may be put to or any further process being carried out with respect to the plastic matrix.

Abstract: A chopping device for chopping waste material, in particular household and garden wastes, has a housing having a filling opening and a discharging opening for a waste material, a rotor rotatably supported in the housing between the filling opening and the discharging opening and having a substantially vertical rotary axis and also having at least one throughgoing gap, a rotary drive for rotating the rotor about the rotary axis, at least one cutter provided at an upper side of the rotor and at least one driver provided at a lower side of the rotor, and at least one holding element for the waste material cooperating with the rotor. The rotor is funnel-shaped and has a side wall which is provided with the throughgoing gap and the cutter and a central bottom part which is connected with the rotary drive and from which the side wall projects upwardly and outwardly toward the filling opening so as to expand substantially conically.

Abstract: An apparatus for deagglomerating powder in a mixture of liquid and powder. This apparatus contains a mixing tank, an agitator disk disposed within the mixing tank, and a baffle. The agitator disc has a maximum dimension of from about 6 to about 40 inches. The disc contains a multiplicity of compound teeth radially and removably attached its perimeter. Each of the compound teeth is comprised of a substrate to which is attached a front plate which preferably consists of a ceramic material, such as tungsten carbide.

Abstract: A size reduction machine for use in process industries to continuously and precisely reduce the size of particles, while controlling fines, has a rotatable spindle and a motor operably connected to the spindle for effecting rotation of the spindle. The spindle is mounted within a channel having an input and an output.

Abstract: A system and apparatus for size reduction and classification of solids particles to aid in their disposal. The system includes mixing the solids particles in a viscous liquid to form a slurry in a receiving tank, passing the slurry through a series of initial screens and magnets, and circulating the slurry through a series of reduction tanks to a holding tank by vertical fluid mills. The vertical fluid mills include a slurry inlet and outlet and have a rotating shaft to which is mounted a series of rotating perforated disks which rotate in close proximity to and between a pair of stationary blades. The disks and blades are situated between series of impellers mounted on the rotating shaft. The reduction tanks include screens for solids classification and recirculation of the solids particles.

Abstract: An apparatus for deagglomerating powder in a mixture of liquid and powder which contains a mixing tank, an agitator disposed within the mixing tank, and a baffle. The agitator disk is circular, has an diameter of from about 6 to about 40 inches, and contains a multiplicity of compound teeth radially and removably attached to its perimeter. Each of the compound teeth is comprised of a substrate to which is attached a front plate, a top plate, and a bottom plate; each of these plates preferably consists of a ceramic material, such as tungsten carbide.

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: An apparatus for preparing plant material, such as sugar cane, comminutes the material for further processing, for example, by cane mills or a diffuser. An upfront cutter (2) and a shredder (8) are immediately adjoining each other at the end of an adjustable speed conveyor (1). A material guide housing forms with its guide channel sections an inverted V-shape. One guide channel section reaches upwardly and extends over the discharge gap (6a) of the upfront cutter. Another guide channel section reaches downwardly to the shredder. An intermediate guide channel section interconnects the upwardly and downwardly reaching sections to form a closed guide channel construction. An upper channel wall portion remote from the upfront cutter and from the shredder forms an impact and deflection baffle (11c) for the precomminuted material ejected by the upfront cutter for feeding the material to the shredder. The apparatus is compact and assures a uniform material feed to the shredder.

Abstract: A pulverizer device is provided for pulverizing food, garbage and the like. The pulverizer includes a housing with a centrally disposed, rotatable shaft carrying a plurality of cutting and grinding stages which cooperate with opposingly mounted cutting and grinding counterparts to sequentially pulverize the material. In order to accommodate a simple to manufacture and easily adjustable modification of the pulverizer device so as to be usable with both garbage and the grinding of certain food stuffs such as grain and spices, there is provided a manually adjustable annular ring mounted at the lowest stage of the pulverizer. A handle protrudes outwardly through a housing wall slot to accommodate rotation of the ring to effectively raise and lower the same to engage and disengage the last pulverizing stage.

Abstract: A grinding mill containing a plurality of milling sections and composed of: a single cylindrical stator common to all milling sections; a rotor mounted in the stator for rotation about the longitudinal axis of the stator and having a plurality of milling plates spaced apart along the longitudinal axis and each disposed in a respective milling section; and a blower facility fastened to the rotor for rotation therewith and disposed near the bottom of the stator below the lowermost milling section for conveying material to be ground and conveyor gas through a central opening in the bottom of the stator to the milling sections. An auxiliary flow inducing device is connected to the outlet of the mill. The mill further includes a finger sifter mounted adjacent the outlet end of the milling sections and rotated at a rate selected independently of the rate of rotation of the rotor. Each milling plate can be formed to have an irregular working surface.

Abstract: There is described a method for direct fuel firing, particularly for plants such as hot water generators, etc., operating with a burner, a combustion chamber and a high-temperature exchanger, which comprises using a moist solid fuel, crushing said fuel upstream of said combustion chamber, and feeding directly therein, without lowering the water content thereof, the crushed fuel in the presence of a primary combustive fluid, and an equipment for the working of said method.

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 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 machine of modular construction having a framework onto which a plurality of removable stators is mounted. The stators are fixed relative to rotors which fit within openings in the stators. The rotors are keyed to a central axial shaft which provides rotary power so that the rotors can rotate within the fixed stators. Each rotor has a number of radially extending blades having a forward edge carrying a knife, while the stator has similar radially extending blades and knives confronting the rotor's knives in a material shearing relationship. A modular stator is jointed for disassembly allowing access to both rotor and stator knives while the apparatus is still mounted on the framework.

Abstract: In a meat comminuting machine for emulsifying and/or finely comminuting meat into forcemeat, the machine includes an inlet hopper, a conveyor worm including a feed section and a delivery section leading to a cutting device with rotating knives having a considerably greater diameter than the feed section, at least the knives and the delivery section of the conveyor worm are rotated at such a high speed, that these components together with a portion of the machine's housing act as a centrifugal pump with axial entry and exit.

Abstract: In a pulverizer of the type having, within a casing, a stator and a rotor to be rotated in the stator, both having large numbers of mutually confronting ridges or teeth with a gap therebetween, the gap is 1 mm or less, and the ridges of the stator are of sawtooth shape as viewed in cross section and have flanks forming troughs therebetween with an acute bottom dihedral angle of 45 to 60 degrees. At least one tier of a classification ring is provided around the inner wall surface of the stator to form flow-blocking barriers across some or all of the troughs thereby to prevent particles being pulverized from being swept through the troughs without being satisfactorily pulverized.

Abstract: A method and arrangement for multiple stage micronization of sticky material such as clays, sulphur, and pigments is disclosed. The sticky materials are milled by opposing vortices created by high velocity streams of gas or air. Average velocities of at least 60 m/sec are induced within the individual milling chambers by a rapidly rotating rotor and stator acting in different directions. This produces an even stream within the milling chambers, whereby the material being milled travels on a carrier gas without agglomeration. The material to be milled is crumbled within the first milling chamber and transferred to the periphery of the chamber by the main vortices, were a plurality of microvortices disposed tangentially with respect to the main vortex perform the actual milling process. The milled material enters a second milling chamber, and additional chambers thereafter, through a plurality of centripetal channels disposed along a pressure differential.

Abstract: A grinding mill for grinding surplus bread includes an upright cylindrical housing containing a preliminary grinding chamber, a subsequently arranged hammermill and a strainer through which the finished ground stock leaves the grinding mill. The preliminary grinding chamber includes rotor mounted pre-cutting knives and wall mounted breaker strips. Feeding teeth mounted on the rim of the rotor communicate the pre-cut bread from the preliminary grinding chamber through an annular gap to the hammermill for final grinding by rotor mounted mill hammers and wall mounted breaker strips.

Abstract: A two-piece container and grinder combination is disclosed. The container has an upwardly projecting cylindrical post having outwardly extending grinding teeth. The cap is adapted to fit rotatably to the container and has two sets of teeth which cooperate with the teeth on the cylindrical post to grind the ingredients from the container as the ingredients pass from the container between the teeth.

Abstract: Vertical impact mill for production of very fine powders from larger nut-size pieces of coal, the mill including a series of horizontal impact wheels formed of wheel halves which connected together form an integral shaft-wheel system, the diameter of the impact wheels increasing from top to bottom of the mill, with an inlet at the top of the mill and successive chambers, each housing one impact wheel, and connected by connecting conduits offset from each other by 180.degree.. The mill is designed for use with an inert gas to entrain the powder through and from the mill.

Abstract: Apparatus for emulsifying sausage batter and the like wherein sausage batter to be emulsified is first gravity fed from a hopper into the inlet of a comminuting chamber. The batter is then impelled radially outwardly into a rotating centrifugal trap which is adapted to centrifugally remove impurities such as metal particles and to direct the material downwardly through a series of alternately rotatable and non-rotatable perforate rings. The interaction of the rings comminutes and emulsifies the batter as it passes therethrough, whereupon it exits vertically from the lowermost of a series of rings and is swept by rotating blades into a tangentially disposed discharge conduit.

Abstract: A method of shredding a web of material is provided. The web is moved by means of a stream of air provided by rotating impeller blades in a first path toward a shredder outlet. At least a part of the web is shredded in this path by stationary first shredding teeth and the shredded portion is immediately moved out of the outlet by the stream of air. The unshredded portion of the web is pulled from the first path into a second path and shredded as it moves in the second path by means of stationary second shredding teeth positioned at substantially a right angle to the first shredding teeth. Then this shredded part of the web is moved out of the shredder by means of the stream of air.Apparatus is provided for performing the above-described method.