Abstract: This waste recycling processing mechanism combines in a self powered unit in a preferred embodiment on a vehicle apparatus that sorts and processes recyclable materials. In another embodiment, this processing mechanism is constructed as a transportable unit that is self contained for road, rail or marine delivery to government, military, industrial, commercial and public sites. This unit may be set up for stationary operation with cruise ships, cargo vessels, and military ships as well as passenger trains and aircraft. This processing mechanism reduces the volume of recyclable waste by factors as high as 20 or more into the most compact forms in separated bins, and is capable of yielding uncontaminated, market-ready recyclable products by operator or by automatic means. Operator safety and comfort with resultant increased efficiency are paramount considerations provided in all units.

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

Abstract: An apparatus and method for chemically and physically stabilizing contaminated soil is disclosed. The soil is homogenized in a homogenizer; dropped into a mixer below the homogenizer and mixed with an additive; then dropped to a processing terminus located below the mixer. The apparatus and method are useful for processing highly clumped and/or acidic soil, e.g., soil contaminated with mining waste.

Abstract: A method and system for re-using and recycling garment hangers which is applicable to localized or world wide geographic areas and which (a) eliminates sorting at the collecting point for used hangers, usually a retail store, (b) handles re-usable, recyclable and scrap hangers without restriction on mix components of a given batch, (c) renovates and returns the re-used hangers and recycled hanger material to points of need, and (d) can be physically located at a location dictated solely by convenience considerations without mandatory reliance on the physical proximity of hanger manufacturing facilities. The recycled hanger material may be sorted into a first part suitable for recycling and a second part suitable for scrap by manual and/or non-manual means.

Abstract: A self-propelled rock crushing machine prepared according to the present invention utilizes the drive unit to a conventional excavator of the type normally found in the construction industry. For simplified repairs or replacement of its components, each of the components on the self-propelled rock crushing machine are removably secured to its vehicular frame. The components include a hopper that stores material to be crushed, an apron feeder that collects material from the hopper and carries the material toward the crushing device, a grizzly separator that separates undersize material from the larger material to be crushed, a crushing device, and a discharge conveyor that receives crushed material and discharges the same from its outer end. A water tank and pump also are provided for preparing properly moisturized crushed material which is suited for backfill operations.

Abstract: A motor driven grinding apparatus, and a system incorporating the inventive grinder, for reducing the size of waste material. The apparatus includes a housing having an interior, an exterior, an inlet for introducing material into the interior, and an exit for expelling material from the interior. The housing also includes a front wall, a back wall, a pair of spaced apart side walls, and a bottom grate. The apparatus also includes a substantially cylindrical, balanced, drum having a shaft, and a plurality of cutting blocks rotatably mounted thereto. The drum is rotated by a drive motor engageable with the shaft. An airfoil is attached to the front wall for establishing a static air curtain within the interior of the housing enabling air to be drawn into the housing through the inlet and expelled from the exit when the drum rotates. The drum and cutting block configuration are particularly useful for grinding, and shearing, cellulose, plastics, glass, and other solid waste materials.

Abstract: An infeed conveyor feeds seed cotton modules successively to a feeder head having disperser drums which reduce the modules to clumps of cotton. Incorporated into the conveyor are fluted rollers and beater rollers which cooperate to agitate the bottom portion of the modules and work the fibers on the bottom of each module so as to stretch and relax these fibers, thereby causing the sand, dirt, mud, trash and other debris accumulated along the bottom of the modules to be released. A conveyor feeds this debris to a hopper. Further, after the cotton modules have been dispersed into clumps of cotton by disperser drums in a feeder head and the clumps deposited in a clump chamber, a trough having a sieve means receives the clumps of cotton. In the trough, a conveyor disposed in the trough urges the clumps of cotton in a lateral direction toward an air separator box adjacent the feeder head.

Abstract: A macerator (32), e.g. for sewerage, including two stacks of interleaved contra-rotating cutters and spacers is mounted in a macerator chamber (30) having an inlet (60) and an outlet (62). The chamber (32) has a sump (80) upstream of the stacks of the cutters, which are mounted at such an angle that hard, solid material such as stones and metal fall under gravity through the influent into the sump.

Abstract: Method for separating paper fibers and contaminants for mixtures containing water, fibers, contaminants, paper or cardboard pellets, wherein the mixture is subjected firstly to a screening, secondly to a mashing and then thirdly to a further screening with addition of water, subsequent to which the pulp retained by the screen is evacuated.

Abstract: An oscillating screen (13) is positioned between a grate system (11) of a grate cooler and a crusher (16) to separate the fines from the material discharged by the grate cooler prior to feeding the remaining clinkers to the crusher (16). This arrangement of equipment greatly increases production and markedly reduces wear of crusher components.

Abstract: A grain mill is disclosed comprising a heat-dissipating, stainless steel housing that holds a pair of grinding stones, one of which rotates with a shaft turned by an electric motor. The shaft is journaled on self-aligning bearings. The bearings and the housing cooperate to keep heat buildup from the grinding operation low so as not to damage the grain, even at higher grinding speed. As an additional check on mill temperature, a thermometer is included to provide temperature information, and an ammeter is connected to the electrical motor to provide information about the electrical current being drawn when the motor rotates the shaft as an indication of the stress on the shaft. A small door near the exit spout permits a check of the uniformity and size of the ground product. Finally, magnets on the hopper attract metal particles and hold them so that they do not enter the space between the grind stones, where they could damage the stones and become part of the product.

Abstract: A portable recycle crusher system has a hopper with inward and downward sloping sides, and fold-out hopper extensions. A belt feeder beneath the hopper slides on a slide deck made of a low friction, wear-resistant plastic bolted to a steel plate to prevent tearing of the belt when sharp pointed objects are dumped into the hopper. Stopping and starting and speed of the belt are controlled by remote radio control. Materials fall off the end of the belt feeder onto vibrating screen, which allows fine materials to bypass a crusher. The materials then enter a large rectangular opening of the crusher, and approach rotating hammers at a proper angle and speed. The hammers strike and break the materials and throw them against abrasion-resistant plates. The broken materials fall between the spinning hammers and through sizing screen steel grates, which provide positive product size control.

Abstract: Portable apparatus for comminuting gypsum wallboard includes a rigid truck trailer platform having two hoppers mounted thereon. Rotary milling units are in one hopper and a chain mill in the other hopper. Wallboard is sequentially passed through the hoppers and a conveyor transports wallboard between the hoppers.

Abstract: A foliage compactor includes an impeller assembly supported on a frame and including an enclosure having an inlet and an outlet, and an impeller supported for rotation within the enclosure to produce suction at the inlet and positive pressure at the outlet. An elongated hose is connected to the inlet so that foliage is drawn into the impeller assembly through the hose. A cyclone separator is supported on the frame beside the impeller assembly, and presents an upper inlet connected to the outlet of the impeller assembly so that air and foliage under positive pressure are introduced into the cyclone separator by the impeller assembly. The cyclone separator includes an outlet disposed lower than the inlet, and an exhaust vent located higher than the outlet for exhausting air from the housing.

Abstract: A portable recycle crusher system has a hopper with inward and downward sloping sides, and fold-out hopper extensions. A belt feeder beneath the hopper slides on a slide deck made of a low friction, wear-resistant plastic bolted to a steel plate to prevent tearing of the belt when sharp pointed objects are dumped into the hopper. Stopping and starting and speed of the belt are controlled by remote radio control. Materials fall off the end of the belt feeder onto a scalper, which allows fine materials to bypass a crusher. The materials then enter a large rectangular opening of the crusher, and approach rotating hammers at a proper angle and speed. The hammers strike and break the materials and throw them against abrasion-resistant plates. The broken materials fall between the spinning hammers and through sizing screen steel grates, which provide positive product size control. The materials fall onto a discharge conveyor, which carries the materials away from the recycle crusher and scalper.

Abstract: A method and system for re-using and recycling garment hangers which is applicable to localized or world wide geographic areas and which (a) eliminates sorting at the collecting point for used hangers, usually a retail store, (b) handles re-usable, recyclable and scrap hangers without restriction on mix components of a given batch, (c) renovates and returns the re-used hangers and recycled hanger material to points of need, and (d) can be physically located at a location dictated solely by convenience considerations without mandatory reliance on the physical proximity of hanger manufacturing facilities.

Abstract: A feeding device is disclosed for feeding cellulose material, such as wood chips to gas swept size reduction machines, and wherein the elimination of foreign particles from the material to be crushed is mainly achieved by pneumatic screening. The device includes a screening passage into which widely spread input material trickles slowly over a slide, having an angle of inclination .beta. which is slightly greater than a friction-angle whose value is determined from its surface roughness. The screening passage is impacted by an air current generated by a cross current fan and which is directed, along a channel, roughly tangentially onto a guiding wall. The guiding wall is arranged at an angle of inclination .gamma., selected so that the guiding wall functions as a pneumatic sorting table, and where it forms with the channel a discharge slit for the foreign particles.

Abstract: For preparing plastic waste composed of different plastics, possibly combined with other materials, for further processing, for example, as additives for construction. A method of the invention comminutes the waste, metals are separated out, the plastic waste is agglomerated, and the agglomerated waste is comminuted further. A device according to the invention for performing the method uses comminution devices, metal separators, and at least one agglomerator. The entire device is completely mobile and equipped with its own power supply.

Abstract: A recirculating grinding plant with a crushing high-pressure roller press and sifter which has low energy consumption and which operates without a separate drive disagglomerator for disagglomerating the roll press scabs. The raw material together with the scabs of the roller press are delivered directly to the delivery chute (15) of the disagglomerator/sifter, which is a static cascade sifter (16) enclosed by a column-like sifter housing and having two sift-zone barriers. The barriers form a sifting zone therebetween and sifter air flows through them in a cross-current fashion. The barriers include cascade-like or shutter-like deflectors (16a, 16b) pointing towards the bottom in direction of the discharge opening (19) for the sifted coarse material fragments (20). The two deflectors (16a, 16b) and the sifting zone (17) located therebetween are arranged oblique to the vertical.

Abstract: A portable apparatus for mulching paper and paper products including a hopper having a gage bar limiting the thickness of the material entering the hopper, a cutting chamber where a cutter bar and a mulcher bar, operated by an electric motor, rotate and mulch the material and eject it into a chute and a bag at the end of the chute. The apparatus is easily clamped to a table.

Abstract: A mobile machine for use in opencast mining employs a chassis with endless tracks and the chassis has outriggers projecting laterally outwardly from the tracks. A hopper supported by one outrigger receives raw ore material excavated by another machine or machines. The raw ore material passes from the hopper to a screen arrangement with superimposed oscillating screens which sieve the material to separate the finer mineral ore product from the coarser spoil. The mineral ore product which passes through the screens is transferred by a multi-stage conveyor extending perpendicularly to the tracks to a separate conveyor laid on the floor of the working alongside a path of movement of the machine. The spoil is transferred with another conveyor to the inlet of a jib which extends laterally outwardly from the tracks opposite the hopper. The jib itself has a conveyor which transports the spoil along the jib which then discharges the spoil onto a dump.

Abstract: The apparatus for recycling glass containers comprises an enclosure having at least one customer access opening and a rotatable carousel mounted in the enclosure. The rotatable carousel defines a plurality of glass container receiving recesses for subsequently receiving glass containers through the customer access opening. A fixed platform defining at least two openings underlies the carousel and a scanner, mounted in the enclosure, is positioned adjacent the carousel for scanning the code markings on the glass container. At least one trap door is provided, the trap door being operatively associated with a first opening in the fixed platform. The scanner electrically controls the movement of the trap doors so that glass containers, upon rotation of the carousel, will selectively fall through one of the openings in the fixed platform.

Abstract: A stationary scalper removes coarse trash, from feed material entering a roll mill grinder, by diverting the trash across an adjustable inclined grate to a trash discharge chute. The grate is fitted with parallel grate bars extending in the direction of inclination for easy trash transport. A flow director spreads the feed material over the full length of the grate below the feed inlet and an adjustable rigid door defines a gap above the grate which controls the flow rate of trash toward the discharge chute. By controlling flow rate, the efficiency of trash separation may be maximized for a given production rate.

Abstract: A solid waste handling system for screening and grinding solids entrained in an influent liquid stream flowing within a chute between laterally spaced vertical sidewalls utilizes at least one solids diverter horizontal rotating screen unit fixedly mounted within the chute and at an angle to the influent liquid stream with an endless loop open mesh screen mounted for rotation on a frame assembly such that one upstream face of the screen is vertical and moves horizontally across the stream in a direction towards the downstream offset grinder unit. The grinder unit has a housing with an upstream facing inlet port and mounts internally within the housing stacked interengaging shredding members for rotation about their axes in the path of flow of the solids bearing influent. Motors mounted to the units above the influent liquid stream level drive the screen and shredding members of respective units.

Abstract: A solid waste handling system for screening and grinding solids entrained in an influent liquid stream flowing within a chute between laterally spaced vertical sidewalls utilizes at least one solids diverter horizontal rotating screen unit fixedly mounted within the chute and at an angle to the influent liquid stream with an endless loop open mesh screen mounted for rotation on a frame assembly such that one upstream face of the screen is vertical and moves horizontally across the stream in a direction towards the downstream offset grinder unit. The grinder unit has a housing with an upstream facing inlet port and mounts internally within the housing stacked interengaging shredding members for rotation about their axes in the path of flow of the solids bearing influent. Motors mounted to the units above the influent liquid stream level drive the screen and shredding members of respective units.

Abstract: An apparatus and method for reclaiming fiber reinforcement material from cured SMC waste products provides a series of roller mill pairs having a differential speed capacity between paired rollers. The rollers impart a shearing and crushing force to the material which breaks the bond between the reinforcement fiber filaments and the resin binder while preserving the structural integrity of the filaments.

Abstract: A tub grinder for grinding waste material is disclosed. The tub grinder includes a cylindrical tub member having an open end for receiving waste material to be ground. The tub member includes a cylindrical interior wall having one or more magnets mounted thereon for extracting tramp iron from waste material in the tub member.

Abstract: Equipment for deoiling swarf resulting from machining operations including a deoiling centrifuge and an endless conveyor for supplying the swarf to the centrifuge. The conveyor has a support and sliding surface for the swarf with a grating through which the swarf falls for transfer to the deoiling centrifuge but through which foreign bodies are prevented from passing.

Abstract: A comminuting device for breaking-up charge bodies of frangible material to free their value content and to reduce it to a desired size employs an upright enclosure into which charge bodies are fed so as to minimize in-air flow and to provide a steady stream of the bodies into the upper end of a centrally positioned downflow feed duct from which a series of horizontally, radially outwardly extending and vertically spaced-apart discs of a rotating assembly are suspended to define a central chamber selection passageway that is open at its upper end to the lower end of the duct, and at its bottom end through a grating to a motor drive compartment into which a fluid is introduced under positive pressure.

Abstract: An apparatus for processing wood chips for use in the preparation of pulp in a papermaking operation including a conduit for accommodating a flow stream of wood chips, a rotary valve in the conduit, shunt branch conduits with a first shunt leading to a chip dumping bin and a second shunt leading to a chip processing device; dampers in the branches with the damper for the first shunt branch being in normally closed position and a damper in the other shunt branch being in a normally open position; and a metal detection device upstream of the branches operative to move the first damper to open position and the second damper to closed position for a predetermined time and to stop the rotary valve and to reactivate the dampers and rotary valve after a predetermined time.

Abstract: A method and apparatus for extracting injectable collagen from human adipose tissue, such as removed by liposuction procedures. The apparatus includes a clear container with inlet and outlet fittings to be attached to the suction line of a liposuction machine to collect globules of adipose tissue. The container has a needle-like rod disposed in its center and an electric motor and belt drive to rotate the rod at a speed sufficient to cause interstitial reticular fiber from adipose tissue to adhere to and wrap around the rod. Water may then be flowed in through the inlet fitting and drawn out through the outlet fitting to flush the adipose tissue out of container, leaving the reticular fibers on the rod. The rod is then retracted (lowered) through a sleeve which has a rotating chopping blade, scrapping the fiber into a cup area of chopping blades. A pharmaceutical carrier such as saline solution is injected into the container.

Abstract: A method and apparatus for separating recyclable material from waste material in a material handling system. The material separator comprises a screw conveyor that separates waste material from recyclable material. The screw feeder also feeds the recyclable material into a crusher for pulverization. The waste material bypasses the crusher and is deposited onto a screen for removal into a waste bin. The crusher generally pulverizes the material received by the screw conveyor. However, if uncrushable material is dropped into the crusher assembly, a ballistic part ejector is provided for use with the crusher. The crusher apparatus has a housing and a rotary crusher member. The housing of the crusher apparatus includes convergent walls along one portion to direct ballistic or thrown uncrushable debris in a predetermined direction toward an ejector aperture formed in the housing. A closure member operably obstructs the ejector aperture in the housing.

Abstract: The present invention relates to a device for protecting refining discs from excessive mechanical wear by preventing unwanted debris from coming between the discs.

Abstract: A method and apparatus for communicating feed stock in the form of shreds or the like to form a low density particulate product. The shredded feed stock is fed to a material handling rotor that functions as a centrifugal blower. The apparatus includes a housing that defines a cylindrical rotor chamber formed about a horizontal axis and a volute-shaped internal passage having at least one convolution formed around the rotor chamber. Located within the housing is a cylindrical screen with perforations that open into the rotor chamber. The centrifugal blower rotor is mounted in the rotor chamber and has a plurality of radial vanes with rakers attached to the outer ends closely spaced from the inner surface of the screen so that they continuously wipe pass the perforations to prevent clogging or blinding.

Abstract: A tub grinder is disclosed in which material which is already sufficiently small in size, primarily being abrasive aggregate or earthen material, may be discharged from the receptacle to bypass the comminution apparatus and thus substantially reduce wear thereto. A portion of the cylindrical wall of the receptacle is provided with classifying openings, for example by providing a screened opening as a band around the receptacle. The classifying openings permit material which is already smaller than the size of the openings to fall therethrough, thereby bypassing the comminution apparatus. Preferably, a conveyor is positioned beneath the receptacle, to catch and discharge the material which falls through the screen or other classifying openings to a pile located away from the receptacle. Sidewalls positioned on either side of the receptacle stop any material which is flung out to the side, and redirect it down onto the conveyer.

Abstract: The present invention relates to a process for separating and recovering copper wires, lead grains coming and rubber grains coming from waste cables, through washing, gravimetric separation, screening and by flattening the lead grains thereby facilitating their ready recovery.

Abstract: An improved centrifugal impactor for crushing rocks includes a hollow housing having a peripheral crushing chamber and a rotor mounted in the housing for rotation relative thereto about a generally vertical axis and spaced radially inwardly from the crushing chamber so as to define an annular passage for communicating a flow of rocks from an upper inlet opening and the crushing chamber to a lower outlet opening. The rotor includes a horizontal platform and a pair of outer and inner annular vertical barrier members attached to and extending upwardly from the horizontal platform. The outer barrier member is disposed about a peripheral edge of the horizontal platform.

Abstract: The slag that is formed in garbage and waste incinerators is cleaned of coarse material and iron directly after the slag outlet (1) from the incinerator. Separation into two fractions takes place after coarse cleaning, in a fractionating unit (6). One of the fractions contains all the particles that are smaller than 2 mm. At the same time, the dust is separated by a suction system (14). Dust and particles smaller than 2 mm contain practically all the soluble harmful substances and have to be processed and stored observing special precautions, or dumped. The remaining, cleaned slag is dry, and can be used as construction material. The process and the apparatus avoid the use of a water bath, so that no energy is needed for drying.

Abstract: A segregated waste disposal system is disclosed which includes a plurality of separate bins for receiving paper, plastics, glass, and metal respectively. Two openings are provided within the overall unit, one of the openings receiving paper/plastics, the other opening receiving glass/metal. The respective openings perform different disposal functions with respect to the materials inserted therein, whereby the glass/metals opening compresses the glass/metals such that the compressed glass will immediately fall through a grate into a glass bin and a sweep arm sweeps compressed metal to an adjacent metals bin. The paper/plastics opening compresses the paper/plastic and subsequently shreds the compressed material. Deflection to a respective paper/plastics bin is determined by an operators instruction achieved via a selection panel provided in connection with the waste disposal system.

Abstract: A wood chip screen system which includes a gyratory screen apparatus (10) and a disk screen (12). The gyratory system apparatus includes a top screen element (14) and a lower screen (16). The inflow end of the disk screen (12) is immediately adjacent the outflow end of the top screen element (14), while the lower screen element (16) underlies the disk screen (12) for a substantial distance. The size of the openings in the top screen element (14) may be changed by the operator to optimize the operation of the system. The openings in top screen element (14) may also vary along its length. The system produces chips within the acceptable size range, chips which are below the acceptable size range (pin chips and fines), and over-thick chips, which are subsequently typically transmitted to a chip size reduction apparatus such as a slicer.

Abstract: A self-cleaning size-segregating grid for a coal crusher has two parallel clearing combs made up of rigid steel fingers which rotate through the grid bars to clear jammed materials therefrom. The propeller-like fingers are preferably staggered in angular orientation on their respective shafts. The shafts are spaced so that the swept volumes of the fingers overlap. A surge detector senses drive motor current as an indication of stall or incipient stall and automatically reverses the direction of rotation of the clearing combs.

Abstract: A two-stage procedure is disclosed for sorting wood chips. The chips are directed to a gyratory screen in the first stage and to a disc screen in the second stage. The chip flow is divided in the first stage into four fractions of which the first fraction contains mainly oversized chips and is directed to a pin chipper, from which it emerges as suitable-sized chips and is directed back to the gyratory screen of the first stage. The second fraction contains acceptable sized chips and most of the overthick chips and is directed to the second or thickness screening stage. The third fraction consists mainly of acceptable chips and is directed to a pulping process, while the fourth fraction consists mainly of fine particles and is directed to a burning station.

Abstract: In autogenous grinding of mineral material in a grinding mill with a screening wall a method is provided for enabling the removal of at least three different fractions without the need of the screening wall being divided into sectors, thus increasing grinding material turnover and grinding capacity, by passing through openings (8) distributed over the screening wall (7) a mixed material fraction containing all material fractions having a maximum particle size less than or equal to the largest size opening for screening coarse material in the size intended for use as a grinding charge in a further mill (23) and dividing up the mixed material fraction into at least three fractions in a classifying apparatus (13), by always taking out from the classifying apparatus (13) at least a fine fraction, a coarse fraction and a medium coarse fraction, the latter two fractions being kept separate for permitting, as required, diversion (38) of the coarse material fraction as grinding charge to following grinding steps, the

Abstract: A comminuting machine for comminuting meat and the like and especially for material which has been previously cut into small pieces. The comminuting machine includes at least one cutting unit. A feed pump is arranged in front of the inlet of the comminuting machine and a vacuum suction device is connected to the interior of the feed pump. A separating device for solid objects, especially a separating device for ferromagnetic objects including at least one electromagnet, is mounted between the feed pump and the comminuting machine.

Abstract: Disclosed is a wet process recovery system for solid waste. The waste is fed into a hydrokinetic separation step wherein it is immersed in a body of water which is subjected to rising and lateral flows. These flows establish a synthetic gravitational environment to effect separation of solids above and below a predetermined density greater than the density of water. The solids having the higher densities are collected by gravity and transported from the water for recycling. A modified hammermill is connected to the body of water and the rising and lateral fluid flows cooperate to carry waste into a cutting and ejecting mechanism which both shears friable waste and dynamically ejects non-friable waste back into the liquid. The output of the hammermill is a slurry of comminuted waste in the liquid. This is pumped to a centrifuge separator where solid waste is separated from liquid and the liquid recirculated to the body of water to create the flows in that body.

Abstract: Manipulating and selecting unit for recycling pressed or unpressed bodies obtained from plastic material containers as well as others, having a hopper for receiving containers to be processed and for conveying the containers to a cleanser for cleaning the containers and separating pressed from unpressed containers and conveying the pressed containers to a receiver and the unpressed containers to a squeezer or flattener for pressing the unpressed containers and applying to the receiver; a separation is coupled with the hopper for receiving pressed containers and separating them according to color and type of material; and then selecting and determining the type of recovered pressed containers, and forwarding the pressed containers to a processor in accordance with the type of material, whether plastic or not, and the color.

Abstract: A system for controlling the feed rate from a vibrating feeder including a device for sensing the amount of materials being discharged from the feeder, an apparatus to change the slope angle of the feeder, and a controller operatively connected to the sensing device and the slope changing apparatus to actuate the apparatus in response to changes in the weight or volume of materials being discharged from the feeder. The sensing device can be connected to a take-away conveyor unit that receives the materials being discharged from the feeder. The slope changing apparatus raises or lowers one end of the feeder to change the slope angle of the feeder while it operates.

Abstract: A solid waste handling system for screening and grinding solids entrained in an influent liquid stream flowing within a chute between laterally spaced vertical sidewalls utilizes at least one solids diverter horizontal rotating screen unit fixedly mounted within the chute and at an angle to the influent liquid stream with an endless loop open mesh screen mounted for rotation on a frame assembly such that one upstream face of the screen is vertical and moves horizontally across the stream in a direction towards the downstream offset grinder unit. The grinder unit has a housing with an upstream facing inlet port and mounts internally within the housing stacked interengaging shredding members for rotation about their axes in the path of flow of the solids bearing influent. Motors mounted to the units above the influent liquid stream level drive the screen and shredding members of respective units.

Abstract: A municipal solid waste material sorting system comprises a multi-stage trommel having a relatively short first stage section with relatively small holes for screening out grit, dirt, coins, small stones and the like, a second substantially longer second stage section for screening out beverage bottles, metal cans, and other waste materials of similar size and a third stage relatively short section for screening out large objects such as half gallon and gallon plastic, metal and glass containers. The respective screened municipal solid waste fractions from each of the three trommel sections are advantageously handled in respective handling streams. Materials screened in the first stage section of the trommel may be further classified as by a vibrative air table-specific gravity device to recover useful materials, such as glass cullet and coins. Materials screened in the second stage of the trommel may be further screened in a two-section disk screening and air classification arrangement.

Abstract: A screening machine has a rotating screening drum for screening dirt or other material to a desired size through the screen openings, and is made so that it reduces clogging of the screen, even when rocks, dirt clods, and moist dirt is being screened. The rotating drum has interior brushes and a beater bar for keeping the material moving on the interior of the drum. A holding bin and feeding conveyor is used at the input end of the machine and is positioned to empty into an input pulverizer or shredder, that has a powered drum that will break the dirt clods up. The holding bin has a cover grate to remove excessively large rocks and the like. The output from the pulverizing roller also drops material onto a grate through which the material passes before reaching the screening drum. These grates are called "grizzly bars" and help in the classification process. The screening drum can be converted to a mixer drum by lining the screen wall with sheet metal and removing the normally used interior brushes.