Abstract: A fuel feed system and method for feeding low grade fuels to a fluidized bed furnace including an enclosure with a fuel inlet for introducing the fuel into the enclosure, an inlet for introducing air into the enclosure so as to propel the fuel through the enclosure, and baffles disposed in the path of the fuel in a manner to reduce the size of the fuel particles prior to the introduction of the fuel into the furnace.

Abstract: A method and apparatus for fine grinding materials normally difficult to grind at ambient temperature, e.g. plastic and elastomeric materials in a fluid classification type impact mill utilizing liquid cryogen to pre-cool the material to be ground, to cool the material and the mill during grinding and to recycle vaporized cryogen from the mill back into the mill as the medium for conveying material to be ground into the mill.

Abstract: A combination of raw coal and water is introduced as a slurry into a vessel. Chemicals are introduced at a feed inlet. The mixture is reduced by interaction with a bed of agitated grinding balls. Air is introduced into the lower portion of the vessel and forced upwardly through the circuitous passages among and between the grinding balls. The rising air bubbles carry the more hydropholic product upwardly into a froth compartment of the vessel and through a discharge outlet of the vessel. Wash water is introduced into the upper portion of the vessel and descends through the froth and the ball passages carrying entrained and less hydrophobic particles into the grinding chamber. The non-floatable material flows downwardly from the grinding chamber to a refuse zone for discharge as refuse from the vessel.

Abstract: An improved infectious waste treatment system wherein infectious waste is fragmented and converted to a liquid or liquid/sludge form and then is chemically disinfected in a precisely controlled and timed batch process. The disinfection process takes place in an airtight sealed container to insure against release of pathogenic agents into the atmosphere. The process produces a non-toxic and non-infectious liquid or liquid/sludge waste residue which can be safely released into a sanitary sewer, landfilled or otherwise environmentally disposed.

Abstract: An apparatus and method for mixing solid or semi-solid waste materials with one or more additives to produce a solid or semi-solid end product includes a separator with paddle-type chopper augers for receiving the solid or semi-solid waste material. The chopper augers reduce the size of lumps contained in the waste material and discharges the material into an homogenizer. The homogenizer is equipped with pin mixers to form a substantially homogeneous mass of waste material for loading into a blender unit where the mass is blended with selective additive(s).

Abstract: A quantitative feeding apparatus usable for pulverized and/or granular material, a multi-colored automatic feeding apparatus in which the material to be handled is fed in the form of a master batch while the quantitative feeding apparatus is used therefor and a runner recycling apparatus are provided. At every time when the kind of color is to be changed to another one, it is necessary that the quantitative feeding apparatus using the master batch therefor is heretofore disassembled for the purpose of cleaning with the result that a number of manhours are consumed for cleaning operation. In view of the foregoing problem, a plurality of cleaning nozzles directed toward the upper feeding port of the quantitative feeding apparatus, the feeder and the bottom discharging part are arranged for the purpose of cleaning whereby automatic cleaning can be achieved satisfactorily.

Abstract: The apparatus is for the continuous mixing of rubber like polymers with chemical additives to form a homogeneous compound, using minimum unproductive work, such as mixing already mixed material, or massive batch blending to correct lean and rich mixtures previously produced. The apparatus consists of a feeding means adapted to continuously and uniformly advance baled polymer into a machine hopper provided with a multi-purpose rotor, adapted to cut the advancing bale into shreds, in the presence of the chemical additives, mix the shredded polymer with the chemical additives and advance the resulting compound into a continuous mixing means. Mixing with minimum waste motion is expected to produce a superior compound not possible to obtain with present day production equipment.

Abstract: A tire shredder. A housing has a vertical passage therein leading to a series of transversely disposed cutter wheels on adjacent parallel shafts. The shafts are rotated at different speeds, such as at 28 r.p.m. for one shaft and 34 r.p.m. for the other. The cutter wheels have flat side walls that partially overlap, so that rotation results in a scissors action reducing the rubber tires into manageable and disposable pieces. Preferably each cutter wheel has at least one tooth for engaging tires and pulling them into the shredder.

Abstract: A system for disposing of large amounts of infectious hospital waste includes a generally sealed enclosure containing an apparatus for delivery, disintegration, and decontamination of waste materials. A dual conveyor arrangement provides a positive delivery of large waste containers to be disposed to a disintegrator while preventing material from being thrown from the disintegrator. The disintegrator comprises two, large, counter-rotating hammermills capable of effectively disintegrating articles of substantial size. The system enclosure is maintained at a negative pressure and adapted to prevent escape of airborne contamination from the system. A variety of protective features is also incorporated into the system to clear the disintegrator in cases of overload, to avoid power surges upon system start-up, and to effect an orderly shutdown of the system.

Abstract: A drum granulator is described in which at least a part of the cylindrical outer wall is resilient. This can be achieved, for example, by forming the drum from steel and fitting it with a resilient rubber lining, which is exposed in way of circumferentially extending slots in the steel. The drum rotates past pivotted rollers which are allowed to descend abruptly onto the resilient part of the wall, dislodging any material which adhered to it.

Abstract: A method of preparing fine particulate coal for power generation on which the coal is pretreated by the oil agglomeration method (10, 11) to increase the carbonaceous content and produce coal-oil agglomerates. These are fed to a fluidized bed (15) in which the fluid is steam. The bed as concentration is variable and agglomerates leaving the bed are disintegrated in a steam jet (21) which completes separation of the oil from the coal and forms the fine particle coal feed. The oil and steam are separated from the coal feed which continues in the fuel delivery system 29 to the power generation plant. The only steam mix is condensed 37 and the two phases separated (39) and recycled for further use. A control means is provided which is responsive to steam generation demand and activates changes in the generation of coal oil agglomerates (10, 11) and the discharge of coal particles from the fluid bed, disintegrator 15, 21.

Abstract: Apparatus for forming an air laid, e.g., dry laid, fibrous web comprising apparatus for an defiberizing wood pulp laps, rolls or bales, preferably in a hammermill; transporting the fibers pneumatically to a forming head, and dispensing said fibers onto a foraminous support means, the aforesaid operations being carried out at conditions of high humidity such that the average fiber moisture content is at least above 2.5% by weight just prior to reaching a forming header. In the preferred embodiment air at between about 150 to about 200 F. and having a relative humidity of between about 75 to 95% is introduced to the defiberizer to provide the requisite air moisture content. If desired overly large fibers from the forming head may be recycled to the defiberizer. By practicing the invention, electrostatic charges on the fibers are reduced thereby minimizing clumping and ensuring better formation.

Abstract: Manufactured goods such as cast components to which molding sand is still adhering, are treated in a vibratory conveyor chute for cleaning and cooling the goods. As the goods travel down the chute they are exposed to force components extending perpendicularly and across to the travel direction along the length of the chute. These force components impose on the goods a revolving motion along a helical path. This revolving motion may be improved or intensified by directing the resulting force components (R, R') of the force causing the revolving motion to extend at a spacing from a so-called "center of gravity line" (S, S') defining or interconnecting the center of gravity points along the length of the vibratory chute system. This spacing causes a distribution of the goods (11) in the chute such that the goods (11) have a slanted surface (10) in the chute (1). Thus, the vertical acceleration values (k.sub.v) are larger at the upper return zone 26 than they are at the lower return zone 27.

Abstract: A coffee making apparatus has a case, an electric motor, a grinder disposed on a driving shaft of the motor so as to rotate vertically along an interior surface of the case, means for providing hot water to the case, and means for extracting coffee. Coffee-beans are agitated and uniformly crushed by the grinder, so as to provide efficient coffee extraction.

Abstract: The disclosure relates to apparatus for producing mechanical wood pulp of the type having a grinding stone with at least one wood supply chute in which the wood which is to be ground is pressed onto the grinding stone. A trough or a collecting channel is placed underneath the grinding stone. A water supply device moistens the grinding stone at the grinding zone. At least one closed water tank is set up on the grinding stone in front of the wood supply chute, viewed in the direction of rotation of the grinding stone. The water tank is sealed at least on the side furthest away from the supply chute. The tank has a supply line for pressurized water and has outlet holes directed toward the surface of the stone. Preferably, sealing of the water tank is effected by a sealing plug at the grinding stone which plug is adjustable with respect to the grinding stone to accommodate wear of the plug from the stone.

Abstract: A rock and ore pulverizer or crusher device having a generally cylindrical elongate mortar defining a crushing chamber. The mortar is rockable or oscillable by means of a cradle which is driven through an eccentric drive apparatus. A generally cylindrical elongate pestle is secured within the mortar and independently retained therein by a flexible cable and swivel arrangement. The head end of the pestle is preferably tapered and provided with grooves to retain the material fed into the device. The entire device is installed at a desired inclination and material is introduced into a feed trough ahead of the pestle to be crushed as the material moves along the pestle and relative motion is imparted between.

Abstract: A method and apparatus for making sauce and salad dressings in which vegetable oil is trickled into a mixer at a predetermined limited rate for complete dispersion in which perfected mixing and suspension is provided by gravity accelerated free flow of oil in a thinning fine stream, or droplets, a substantial distance undisturbed by agitated air and the flow is repeatedly comminuted by high speed cutters or blades rotating edgewise at 1800 R.P.M. in a mixing operation which assures excellent suspension of the oil in a mixture which does not separate.

Abstract: Liquid fertilizer is produced by mixing dry fertilizer components with water. The combination is introduced into a first cyclone separator which removes the larger chunks of material from the mixture and discharges them into a crusher containing a revolving paddle wheel. The smaller chunks and the solution are passed to a second cyclone separator where the smaller chunks are removed and passed to the same paddle wheel. The solution containing the dissolved material is passed on to a holding tank. The chucks which were passed to the paddle wheel are broken up by impact with the paddle wheel and the paddle wheel housing and thereafter fall through a discharge chute and become remixed with fluid from the holding tank or storage vat. The fluid and crushed particles are recirculated through the cyclones and crusher or impactor until all particles have become dissolved into the solution.

Abstract: A drier, especially for viscous materials, comprises a double-wall cylindrical vessel which is heated and to which the material to be dried is fed at one end with the dried material being removed at the opposite end. A drying gas inlet is connected to the drying chamber to pass the drying gas in counterflow or uniflow with the material and a shaft is rotatable along the axis of the chamber and carries adjustable disks with alternately inner and outer openings so that the material path through the vessel is deflected toward and away from the axis as the material passes successively through adjustable-length cells between these disks. All of the disks carry blades which scrape the material from the heated wall from the vessel and at least some of the disks carry rollers of predetermined spacing from this wall to adjust the particle size of the dried product.

Abstract: A tire disintegrator having rows of abrasive counterrotating wheels between and over which defective tires are passed to be ground into particles or residue for disposal or recycling into new tire products and road resurfacing materials.

Abstract: An improvement in a food processor of the type which includes a working bowl mountable on a base housing and enclosing rotatable food processing tools. The bowl includes a removable cover having a food receiving hopper therethrough. The improvement comprises a food pusher which is selectively insertable into the hopper and is in the form of an ingredient dispensing receptable with a dispensing opening for metering an ingredient from the receptacle into the bowl.

Abstract: A device for extracting cellulosic and similar materials such as rags, plastics, light metals and wood, which includes a drum which is driven in a first direction at a first speed and a rotor inside of the drum which is driven in a direction opposite to the first direction at a speed higher than the first speed. A plurality of teeth are located on the periphery of the drum along a part of its length for shredding the material placed into the drum input. A fixed plate and a plate of adjustable height are placed at the output of the drum against which the other materials accumulate.

Abstract: A crusher for breaking up large size pieces of material, particularly for breaking up coal, comprises a housing with a crank therein which is pivotally mounted adjacent one end in said housing and is connected to means for oscillating the crank upwardly and downwardly in respect to a crusher plate. The crank carries a bracket portion which provides a rotatable mounting for the crusher roller which includes a shaft portion having a plurality of arms extending radially outwardly therefrom which have forward faces which carry striking tools. The arms provide means for conducting a liquid through the arms to a discharge nozzle which is oriented to spray in a direction opposite to the rotation direction behind the striking tools.

Abstract: 1. A method of inducing rapid failure in a shape that is under stress and is composed of cold rolled steel comprising applying against a surface of said cold rolled steel shape a mixture composed of lithium metal, lithium chloride and potassium chloride, rapidly heating that mixture as well as the surface of the steel shape in contact therewith sufficiently to melt the mixture but below the annealing temperature of the steel, and maintaining that temperature until the steel shape cracks.

Abstract: Meterial to be ground, such as ligno-cellulose containing material, is fed-in centrally between a pair of juxtaposed relatively rotatable discs. The material being ground moves outwardly towards a discharge point adjacent the periphery of the discs, and a fluidized treatment agent is supplied to the material as it is discharged from between the discs, the treatment agent issuing from an array of circumferentially spaced nozzles which surround the periphery of the discs.