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: A plate-type dryer or like heat-treatment apparatus has a plurality of annular horizontal plates upon which material is treated while a shaft surrounded by these plates carries a plurality of generally radial arms from which scraper blades are suspended. According to the invention, each blade is carried by a hanger which is pivotally mounted on the arm and reaches rearwardly to support the blade, another pivot providing a further degree of freedom ensuring full line contact of the lower edge of the blade with the plate.

Abstract: A mixer having an open top mixing box accommodating a pair of lower augers and a pair of upper paddle conveyors drivably connected to the augers. A power box pivotally mounted on one end of the mixing box is drivably connected to the augers with releasable drive connections. The power box is a motor driven power transmission assembly that can be disconnected from the augers and removed from the mixing box. A movable door associated with the bottom of the mixing box is used to selectively open and close a discharge opening allowing mixed and blended material to be discharged into a conveyor.

Abstract: Apparatus for mixing particulate material in the bed of a truck having a mixing chamber, a plurality of augers rotatably disposed within the chamber, and a plurality of sprockets and chains for driving the augers from power takeoff from the truck. A lower oil tank is attached to a housing that houses the sprockets and chains. The oil tank contains oil. The method comprises utilizing one of the chains to transport some of the oil from the oil tank for self-oiling of the sprockets and the remaining chains.

Abstract: This invention relates to a mixing vessel employed in the mixing and agitation of the slurry in the mineral and chemical processing. The mixing vessel of the present invention comprises a cylindrical vessel and one or more propellers rotatably disposed within said cylindrical vessel adjacent to the cylindrical wall wherein the axis of the rotation of said one or more propellers is substantially perpendicular to the central axis of said cylindrical vessel; whereby, the rotation of said one or more propellers generates the thrust substantially tangential to the cylindrical wall of said cylindrical vessel and, thus, creates a rotating motion of the slurry contained in said cylindrical vessel about the central axis of said cylindrical vessel for the mixing and agitation of the slurry. Said rotational mixing vessel provides an advantage in saving the energy consumption required by the mixing vessel as well as the power consumption by the aerating vessel.

Abstract: An emulsification tester for determining the amount of water a known amount of material such as printers ink or shellac will absorb when agitated or mixed a precise number of times and in a precise manner is disclosed. As is well known by those skilled in the art, certain materials, especially materials such as shellac and printers ink, will not function properly unless these materials have the ability to absorb a proper amount of water. That is, the material must be able to absorb a minimum amount of water but must not absorb an excess amount of water. The tester of this invention allows a precise amount of water and a material to be tested (such as printer ink) to be agitated by mixer blades rotating at a precise selected speed and for a precise number of revolutions.

Abstract: A motor-transportable plant for delivering substances for treating roadways or the land, in which a tank is divided by a wall into two separate chambers, each accessible through a manhole, and which can be connected together by opening valves provided in the wall; one of said chambers comprises stirring means for a liquid and a solute contained in the chamber, and means for withdrawing the formed solution and feeding it to the outside of the tank, a motor being provided for said withdrawal and for feeding the solution; the second chamber comprises stirrer means and means for withdrawing a solid material contained in the chamber and for feeding it to distributors therefor; said stirrer and withdrawal means are extractable from the chamber through an aperture closable by means of a suitable cover; the tank is supported by a rigid quadrilateral frame provided with legs which can extend by hydraulic control and are each provided with orthogonal shafts which are inserted into the cross members of the frame to defi

Abstract: A multi-purpose vacuum screw loader deaerates meat emulsions and meat chunk mixtures, and loads the deaerated product to a forming or casing station. A sealed vacuumized hopper has a lowermost auger for force-feeding processed product through an outlet in the bottom of the hopper to a positive displacement pump in communication with the next processing station. An agitator overlying the auger within the hopper serves to expose air pockets in the meat emulsion for more complete removal of entrained air. An inlet in the hopper positioned well above the normal product level is particularly sized to form a free-falling, film-like flow of product as the hopper is loaded whereby to expose maximum product surface area to the vacuum environment.

Abstract: A twin-screw machine used for treatment of plastics in which the screw shafts are fitted with eccentrically arranged kneading discs, the clearance .delta. between the kneading discs and the inner wall of the machine housing being greater than the constant clearance s between the particular adjacent kneading discs, and the eccentricity e, which is in each case of like orientation, between the axis of rotation and the central point of the kneading disc being greater than zero and less than half the absolute value of the difference between the housing and disc diameters minus the clearance s.

Abstract: A new mixing vessel is disclosed, which vessel enables a sizable saving of the energy required for the mixing compared with the conventional mixing vessel. The vessel comprises a propeller disposed adjacent to the side wall of a cylindrical tank disposed horizontally, which propeller generates a thrust tangential to the cylindrical vessel wall that creates the mixing motion of the slurry rotating about the axis of the cylindrical vessel. In said arrangement of the cylindrical vessel and the propeller, the propeller shaft is perpendicular to the vessel axis. Therefore, two or more propellers mixing slurries in two or more vessels can be driven by a single shaft disposed through the horizontal cylindrical vessels disposed in a parallel alignment. The bearing supporting the head-end of the driving shaft can be enclosed within a flange sealed with a blind flange, which flange is disposed onto the first mixing vessel in line with the spools housing the shaft.

Abstract: An internal mixer includes a pair of rotors each having spiral vanes adapted to advance materials in the axial direction of the rotors. More particularly, each of the respective rotors has a long vane and a short vane and each of the vanes is of a spiral direction. The spiraling or screwing direction of the long vane is the same as the screwing direction of the short vane on the respective rotors. The flow of the materials along the axial direction differs from one rotor to another. Also disclosed is a mixing and kneading machine including a pair of parallel rotors each having a long vane and a short vane, the long vane extending spirally about the center lines of the rotors and the short vane extending along the center lines of the rotors. Flowing behavior of material to be mixed and kneaded occurs in opposing directions between both rotors.

Abstract: A mixing and kneading machine including a pair of parallel rotors each having a long vane and a short vane, both of which extend spirally about the center line of the rotors. A length ratio of the short vanes to the long vanes is selected within a range of 0.48 to 0.1. Also described is a mixing and kneading device which has a pair of parallel rotors rotating in opposite directions within a mixing chamber defined by a casing and an end frame. Each of the rotors comprises a long vane and a short vane, both of which extend spirally about the center line of the rotor, the spiral direction thereof being selected such that material to be mixed flows from the edges of the rotors into the central portion thereof. The ratio of the length of the short vane to that of the long vane is determined within the range of 0.48 to 0.1 and a ratio of axial thrust exerted on the material by the short vane to that by the long vane is determined between 0.7 and approximately 0.

Abstract: A method for the continuous manufacture of explosive mixtures by mixing their components in screw mixers with at least one charging aperture. Proportioned amounts of the components of the mixture are brought into entry zones provided with screw elements and situated below the charging aperture. The mixture components are then advanced through alternation kneading zones and transport zones having screw elements to the output end. The transport and kneading zones are configured such that the shear gradient therein is between 20/sec and 1500/sec and the maximum pressure in the stream of the mass is not more than 100 bars.

Abstract: Within the sump of a dry developing, magnetic brush system in an office copier machine, twisted strips of aluminum sheet metal are used to form an auger blade mixing arrangement for the purpose of mixing dual component developer. Each auger blade is formed from strip sheet metal into a single, elongated helical convolution and is appropriately journaled at each end for the application of rotative power. In addition, the auger blades have smooth, rounded, axial edges which provides extended useful life to the carrier constituent due to reduced shearing effects.

Abstract: A closed food processing vat particularly for use as a cheese curd vat where at least one rotatable vertical shaft within the vat has a pivotally associated cutter frame stopped so the frame when the shaft is rotated in one direction is moved to a cutting position extending as a radius from the shaft with the cutting edge of the blades in the frame leading to a stirring position when the shaft is rotated in the opposite direction with the frame automatically moved as a reaction against the product in the vat to a position at an angle to the radius so that the projection of blades in the frame relative to the direction of rotation is increased to stir the product.The present invention relates to food processing apparatus which has been particularly although not solely designed for use in cheese making.

Abstract: A vertical autoclave suitable for the bulk polymerization of vinyl chloride based polymers and copolymers embodying agitation means comprising at least one agitator (A) in the form of helicoidal ribbon about a rotatable shaft in the upper portion of the autoclave and an agitator (B) having a rotatable shaft passing through the bottom portion of the autoclave with at least one arm located adjacent to and having a profile corresponding to the bottom of the autoclave, and means for independently driving the agitators (A) and/or (B).

Abstract: Liquid-containing radioactive wastes are bound into thermoplastic material by introducing particles of thermoplastic material at a non-sticking temperature into a kneading machine, heating the thermoplastic material in the absence of radioactive wastes to at least 100.degree. C., adding the liquid-containing wastes to the heated thermoplastic material, mixing and concurrently increasing the temperature of the mixture to a temperature of about 200.degree. C. or more to vaporize liquid in the mixture, maintaining the mixture at a vaporization temperature to dry to the mixture, releasing evolved vapors and discharging the dried mixture from the kneading machine. Difficulties due to clogging of the kneading machine and fluctuations in the consistency of the dried end product are minimized.

Abstract: An in-line mixer for animal feed is provided. The mixer receives feeds from a plurality of sources, mixes the feeds in a short distance, and deposits the mixed feed on a conveyor which carries it to animal feeding stations. The mixer includes a housing forming an upright passage containing baffles and rapidly rotating agitator blades which maintain the feeds in a fluidized condition and accomplish the mixing operation in a short time. Consequently, the mixer itself is short and requires relatively little space.

Abstract: An ice-cream making machine for household use is described comprising a box-like bracket fixed to a motor and two containers for the mixture to be whisked. The two containers are closed by corresponding removable covers and the bracket pivotally supports gear wheels driven by the motor through drive gears also supported by the bracket and engageable with stirring vane carrying spindles supported by the covers. The spindles are in turn effective to engage with and disengage from the gear wheels as the covers are latched to and released from the containers.

Abstract: A homogenization method particularly applicable to fuel oil containing water and/or coal dust is described.

Abstract: An improved polymerization apparatus for finishing high viscosity synthetic polymers involves a vessel having vertical rotating elements which fully wipe the interior surface of the vessel including the top inner surface. Entrances located in the top of the vessel for feeding streams containing molten polymer downwardly into the vessel deposit fresh polymer on the walls and on the upper element surfaces which wipe the top inner surface. A reservoir formed by the leading edge of a raised portion on the upper end surface of the elements facilitates collecting and spreading a fresh supply of polymer on the top inner surface of the vessel to help eliminate stagnant polymer areas thereon during operation.