Abstract: A stirrer having a motor; a hollow shaft that is drivable via the motor and is provided with at least one additive outlet opening, via which an additive passed through the hollow shaft can be discharged; and a rotor arranged on the hollow shaft and having rotor blades, characterized in that a second rotor having rotor blades is provided on the hollow shaft at a distance from the first rotor, and in that the at least one additive outlet opening is provided between the two rotors, wherein the rotors are designed and drivable such that, during operation, a negative pressure and a centrifugal force are generated in the intermediate space defined between the rotors.

Abstract: A stir-transport member is formed on a circumferential surface of a rotation shaft with a first spiral blade, and a second spiral blade formed to overlap the region of the first spiral blade and is opposite the first spiral blade in phase and having a smaller radial-direction height than the first spiral blade. Sections of the spiral blades along the cross longitudinal direction thereof have trapezoidal shapes. The first spiral blade have a plurality of first swell portions, a part of each corresponding to a bottom of the trapezoidal shape and is more swollen than the other portions. The second spiral blade have a plurality of second swell portions, a part of each corresponding to the bottom of the trapezoidal shape and is more swollen than the other portions. The first spiral blade cross the second spiral blade at least at one of the first swell portions per turn.

Abstract: A mixer having a mixing pipe (1), a rotatable mixing unit (3) having back-mixing action, and a supply of the liquid colorant (4, 5) through the wall of the mixing pipe in the area of the mixing unit allows uniform mixing of liquid colorants of differing viscosities even with fixed-cycle supply of the liquid colorants. Mixing liquid colorants using this mixer allows direct dosing of the mixed liquid colorant into a plastic processing machine in the event of volumetric dosing of the employed liquid colorants.

Abstract: An apparatus for heat exchange with radial mixing comprises a trough with two rotatably arranged shafts extending alongside each other, which shafts are each provided with paddles spaced apart in an axial direction with an intermediate distance. The paddles extend substantially in a radial plane with respect to the shafts, and extend in a circumferential direction over at least a part of the circumference. In the circumferential direction, the paddles are at least partly wedge-shaped. Upon opposite rotation of the shafts, successive paddles mesh alternately, thereby forming a gap narrowing again and again. Per shaft, successive paddles in an axial direction are staggered relative to each other in circumferential direction through an angle.

Abstract: A gas/liquid mixing equipment of the present invention comprises a stirring vessel 1, a stirring shaft 10 inserted horizontally in the stirring vessel 1 and a helical ribbon impeller 20 attached to the stirring shaft 10, whereby a high gas absorption performance can be secured even with low shearing. Further, a polymer can be produced with high productivity. A gas/liquid mixing method of the present invention is a method which comprises employing the above-mentioned gas/liquid mixing equipment, and a method for producing a polymer of the present invention is a method which comprises polymerizing feed monomers containing gaseous monomers in aqueous solvents, wherein the gaseous monomers and the aqueous solvents are mixed by such a gas/liquid mixing method. A polymer of the present invention is produced by the above-mentioned method for producing a polymer.

Abstract: A manure spreader includes a box for containing manure. The manure spreader box includes a bottom wall, a front wall, two side walls, and a manure discharge opening. The manure spreader also includes a wheeled frame supporting the box, and a vertical beater assembly for engaging and expelling manure. The vertical beater assembly includes a first vertical beater rotatable about a first axis and includes a shaft having a first flighting forming a left-handed helix, and a second flighting forming a right-handed helix. The manure spreader also includes a manure transfer mechanism for moving manure contained in the box to the manure discharge opening for engagement with the vertical beater assembly.

Abstract: A segmented auger mechanism is mounted in the hopper of a concrete dispensing apparatus used to distribute a hydrated concrete mixture into a horizontally disposed form to manufacture pre-cast concrete structures, such as concrete wall panels used to form a foundation for a residential or commercial building. The auger mechanism is formed of connected segments that can be individually and independently removed from the concrete structure for service and repair. The auger is rotatably supported by a pair of end bearings supported on the opposing end walls of the hopper of the dispensing apparatus, and by at least one interior bearing rotatably supporting a jack shaft having opposing half-round connecting portions for attachment to a corresponding connecting portion on the auger shaft. Removal of a segment of the auger mechanism facilitates the removal of the entire auger mechanism to minimize the down time of the concrete dispensing apparatus.

Abstract: High levels of treated fumed silica, processing fluid and high molecular weight silicone polymer are continuously compounded into a homogeneous silica filled heat-vulcanizable silicone composition by forming a premix in a continuous annular layer mixer and continuously discharging the premix into a compounding apparatus for compounding to form the filled heat-vulcanizable silicone composition.

Abstract: According to the various aspects of the invention, a method and apparatus for mixing electrographic developer is provided. An elongate shaft having two ends and an intermediate location between the two ends is rotated. Developer is moved away from the intermediate location toward one of the ends with an inner helical ribbon mounted concentrically to the elongate shaft for rotation therewith. Developer is moved away from the one of the ends toward the intermediate location with an outer helical ribbon mounted concentrically to the elongate shaft for rotation therewith, the inner helical ribbon is disposed within the outer helical ribbon. Developer is moved away from the intermediate location toward another of the ends with another inner helical ribbon mounted to the elongate shaft for rotation therewith.

Abstract: High levels of treated fumed silica, processing fluid and high molecular weight silicone polymer are continuously compounded into a homogeneous silica filled heat-vulcanizable silicone composition by forming a premix in a continuous annular layer mixer and continuously discharging the premix into a compounding apparatus for compounding to form the filled heat-vulcanizable silicone composition.

Abstract: Apparatus and method are provided for treating a fluid mass or stock, particularly couch stock in paper making. Stock material is fed into a vessel having a mixing arrangement comprising rotatably arranged processing means. At lest two processing means are caused to rotate mutually adjacent in opposite direction and essentially horizontally. The stock at the upper surface of the means is conveyed towards a wall portion of the vessel, whereby spirals arranged in an inclined manner at a core of the processing means bring stock into channels defined by the core, by the spirals, and by the wall portion of the vessel, and further towards a constriction formed by the respective spiral elements running in an intermeshed manner, while a part of the stock is forced in a direction away from a discharge of the vessel.

Abstract: Each mixing rotor for a batch mixer is rotatably insertable into a mixing chamber such that tip clearances are defined between tips of mixing blades and an inner surface of a mixing chamber and is provided on its outer circumferential surface with a plurality of mixing blades for imparting shearing forces to a material to be mixed by causing the material to pass through the tip clearances. The plurality of mixing blades include a nonlinear blade which is substantially nonlinear from a start point to a terminal point in a development of the mixing rotor developed into a plane about its longitudinal axis, and other linear blades which are linear in the development and whose helix angle to the longitudinal axis of the mixing rotor is set at 15 to 35°. An appropriate mixing control capable of realizing both sufficient mixing and sufficient dispersion can be executed by mixing and dispersing the material in a well-balanced manner by means of the mixing rotor.

Abstract: A mixing device has outer walls defining a mixing chamber that has an inlet opening for introducing the material to be mixed into the mixing chamber and an outlet opening spaced from the inlet opening for removing the material to be mixed after mixing from the mixing chamber. At least two mixing and conveying tools are arranged in the mixing chamber and act on the material to be mixed between the inlet opening and the outlet opening. The mixing and conveying tools are formed such that the material to be mixed is conveyed in the mixing chamber by each one of the mixing and conveying tools with at least one first section of the tools, respectively, in a first direction toward the outlet opening and with at least one second section of the tool, respectively, in a second direction opposite to the first direction.

Abstract: A method and system are provided that efficiently compound high levels of inorganic filler, processing fluid and silicone polymer at a commercial rate into homogeneous filled and devolatilized silicone compositions. In the method, filled silicone compositions are compounded by compounding a filler, processing fluid and silicone polymer in a first compounding apparatus to produce a first dispersed composition and simultaneously compounding a filler, processing fluid and silicone polymer in a second compounding apparatus that shares a common extruder shaft with the first compounding apparatus to produce a second dispersed composition. The system comprises a first compounding apparatus and a sequential second compounding apparatus that shares a common shaft with the first compounding apparatus.

Abstract: A method and system are provided that efficiently compound high levels of inorganic filler, processing fluid and silicone polymer at a commercial rate into homogeneous filled and devolatilized silicone compositions. In the method, filled silicone compositions are compounded by compounding a filler, processing fluid and silicone polymer in a first compounding apparatus to produce a first dispersed composition and simultaneously compounding a filler, processing fluid and silicone polymer in a second compounding apparatus that shares a common extruder shaft with the first compounding apparatus to produce a second dispersed composition. The system comprises a first compounding apparatus and a sequential second compounding apparatus that shares a common shaft with the first compounding apparatus.

Abstract: A method and system are provided that efficiently compound high levels of inorganic filler, processing fluid and silicone polymer at a commercial rate into homogeneous filled and devolatilized silicone compositions. In the method, filled silicone compositions are compounded by compounding a filler, processing fluid and silicone polymer in a first compounding apparatus to produce a first dispersed composition and simultaneously compounding a filler, processing fluid and silicone polymer in a second compounding apparatus that shares a common extruder shaft with the first compounding apparatus to produce a second dispersed composition. The system comprises a first compounding apparatus and a sequential second compounding apparatus that shares a common shaft with the first compounding apparatus.

Abstract: A method and device for producing feed stuff or organic fertilizer from edible waste material, such as domestic and commercial food waste products in addition to marine, livestock and agriculture by-products resulting from the commercial production of food items, through a low temperature, natural fermentation and drying process is disclosed. In an embodiment, two mixing/crushing screw feeder units are inclinedly arranged within a chamber with the inclining directions of the two units being opposite to each other. Two mixing screw feeder units individually and downwardly extend from the overlapping inclined end of one of the two mixing/crushing units to the underlapping declined end of the other mixing/crushing unit. In another embodiment, two oppositely rotatable screw feeders, individually consisting of a drive shaft with two helical screws rotating upon the shaft in opposite directions, are horizontally arranged in the chamber.

Abstract: A method and device for producing feed stuff or organic fertilizer from edible waste material, such as domestic and commercial food waste products in addition to marine, livestock and agriculture by-products resulting from the commercial production of food items, through a low temperature, natural fermentation and drying process is disclosed. In an embodiment, two mixing/crushing screw feeder units are inclinedly arranged within a chamber with the inclining directions of the two units being opposite to each other. Two mixing screw feeder units individually and downwardly extend from the overlapping inclined end of one of the two mixing/crushing units to the underlapping declined end of the other mixing/crushing unit. In another embodiment, two oppositely rotatable screw feeders, individually consisting of a drive shaft with two helical screws rotating upon the shaft in opposite directions, are horizontally arranged in the chamber.

Abstract: Methods and apparatus for recycling office waste paper and the like of the type having ink and laser print particles coated thereon. The waste paper is simultaneously pulped and ink particles dispersed by kneading the waste paper in the form of a high solids content aqueous mixture or sludge. After the simultaneous pulping and dispersing, no additional dispersion step is needed to form deinked paper stock. The high solids content aqueous mixture or sludge is diluted and forwarded to wet deinking separation devices such as a froth flotation unit or the like. The thus treated pulp is washed and results in the formation of a high quality pulp stock ready for bleaching and/or paper making procedures.

Abstract: The present invention is for a mixing machine for plasticizable compounds which attaches directly to a molding machine and which is used to color a base material with a color additive. The apparatus receives a base material and color additive for mixing and has a mixing chamber within which the compounds are mixed. The machine has a central impeller which drives a first and second helical flight one of which is right handed and the other is left handed. The material is folded over itself within the mixing chamber before depositing into a molding machine. The mixing chamber consists of a cylindrical housing which has a drive motor attached to one end wall, the other end wall being removable. The housing has a substantial portion of its lower wall remove to form an exit aperture into a downwardly extending funnel.

Abstract: An improved asphalt paver having a remixing conveyor system that is adapted to substantially or entirely eliminating segregation in hot mix asphalt material delivered to the asphalt paver. The remixing conveying system includes at least one pair of parallelly spaced, oppositely pitched, counter-rotating hydraulically driven feed augers having remixing blades that intermittently displace portions of the hot mix asphalt material generally transversely to the direction that the feed augers convey the hot mix asphalt material from a hopper of the asphalt paver to spreading augers near the rear of the machine. Elongate members over the feed augers provide protection from impact forces and overloading and enhancing lateral extraction of hot mix asphalt material from the hopper. An optional feed screen provides flow control of the hot mix asphalt material in the hopper. A kit is provided for converting existing asphalt paving machines to have desegregating capability.

Abstract: Mixer vehicle is typically a tractor drawn and powered trailer for mixing and distribution of bulk materials such as farm animals feedstuffs. It includes a semi-cylindrical body (10) having a side discharge opening (22) with a single logitudinal agitation rotor (36) centered therein, the rotor having helical sweep bars (40) rotating close to the body wall in at least the body part not occupied by the opening acting as a skeleton auger driving material along the body into its discharge zone, and a lesser diameter return auger (50) in the latter zone acting to return material from that zone so that the material is circulated for mixing. When a door (28) is opened the action of the rotor discharges the material through the opening where it may be further acted on by a faster feed-out rotor (34).

Abstract: A screw conveyor type delivering and mixing device is for combinational use on a plastics injection molding machine. The screw conveyor type delivering and mixing device comprises a large central screw rod and two small side screw rods that are housed in a delivering tube having a material feeding opening at one end. The delivering tube has a large central tubular portion for accommodation of the large central screw rod and two small tubular side portions for housing the two small side screw rods. The central tubular portion communicates with the two tubular side portions along the full axial length thereof. All the screw rods have sections alternatively having coarse threads, fine threads and medium threads consecutively with different pitches.

Abstract: The mixer has a chamber with a shaft supported for rotation along an axis along the length of the chamber. Two sets of outer ribbon members are coupled to the shaft such that the two set of outer ribbon members are located about 180 degrees apart and extend helically around the shaft. Two sets of inner ribbon members are coupled to the shaft such that the two sets of inner ribbon members are located about 180 degrees apart and extend helically around the shaft. A drive is coupled to the shaft for rotating the shaft and hence the ribbon members about the axis. The two sets of outer ribbon members are located radially outwardly of the two sets of inner ribbon members. Each set of outer ribbon members has at least two radially spaced apart outer ribbon members. Each set of inner ribbon members has at least two radially spaced apart inner ribbon members. One of the two sets of ribbon members has a left hand pitch and the other of the two sets of outer ribbon members has a right hand pitch.

Abstract: Sewage sludge is mixed with organic material such as woodchips in a three screw mixer so that moving masses are created in the mixing compartment, there being a shearing action at the interfaces between the masses. The mixer includes the mixing compartment and a holding compartment into which dewatered sludge is continuously charged. There is a gate between the compartments which is opened when it is desired to convey sludge from the holding compartment to the mixing compartment. The shearing action results in the organic material being coated with a thin layer of sludge without the formation of dewatered sludge lumps which would rot instead of composting.

Abstract: A retruder (reverse extruder) (1) having at least one housing, with charging (10) and removal (11) ports, and at least two mutually meshing reversible screws (2, 3) running in opposite directions (12, 13) and conveying the medium at the same time in the direction (14) of conveying and in the reverse direction (15). The reversal of thrust reduces the axial bearing load ont he reversible screws (2, 3) and the pressure on the bearing seals. This makes it possible to increase the conveying pressure and to increase the frictional forces of such machines without reducing the service life and the availability thereof.

Abstract: The invention relates to a multiscrew, continuous mixing machine for plasticizable compounds with two screws, which rotate in a housing and which penetrate the cylindrical part of the housing that envelops the screw concerned and exhibit feed and metering sections and inbetween at least one homogenizing section and a mixing section, whereby the feed and metering sections are formed by intermeshing conveying screws, which rotate in the same direction and are arranged in the mixing elements, which are opposite the homogenizing and mixing sections and whose edges travel past each other with little clearance while rotating, whereby to form a chamber extending above the mixing elements, the edges maintain a distance from the part of the housing enveloping said edges that is significantly greater than the clearance.

Abstract: A substance kneader, specifically for cellulose fiber suspensions, with kneading elements arranged at the periphery of a rotor encased in a housing. Two drum type rotor parts and a rotor part disposed in between feature a feed worm conveyor for each rotor part. In the area between facing ends of the worm conveyors, and symmetric to this area, are the inlet openings of the housing. On the ends away from each other, of the rotor parts, are the outlet openings of the housing. The outlet openings are each coordinated with delivery worm conveyors having variable-RPM drive for control of throughput and/or dwell time of the substance to be kneaded.

Abstract: Spiral-shaped screw blades disposed one on another on the bottom of a mixing container are rotated at a high speed for agitating pulverulent materials including aggregate and water to form a mixture. A rapid current of the mixture of the pulverulent materials and water is brought about by the rotating screw blades and causes the aggregate in the mixture to serve as a mixing agitator like milling balls used in a ball mill, to thereby effectively break up lumps of the pulverulent material which are immiscible with water and which are inevitably formed by initially mixing the pulverulent material with water.

Abstract: A system for mixing cementitious material, liquid and aggregate to form concrete includes a cementitious material measuring device which provides dry cementitious material to an enclosed screw conveyor assembly. The dry cementitious material is thoroughly mixed with a liquid within the screw conveyor to form a flowable slurry without producing external cement dust pollution. The slurry is output by the screw conveyor into a final product mixing chamber where the flowable slurry is mixed together with aggregate to form concrete. The screw conveyor assembly has an in-line input and output, and space-saving diverging/converging conveyor sections, to facilitate the retrofitting of existing concrete mixing plants. The conveyor assembly includes a cement metering function as well as a slurry mixing function. A selectively openable and closable bypass gate permits the dry cementitious material to be sent directly to the final product mixing chamber in the event of conveyor failure.

Abstract: A screw kneader for a plastic material in which a pair of longitudinal screws are rotatably mounted in respective bores for conveying plastic material through the kneader. The screws have spaced portions for advancing the plastic material from an inlet region to an outlet region and between the spaced portions is a section with reversed threads opposing plastic flow to effect mixing of the plastic material. The threads of the intermediate section are provided with openings to permit passage of up to 20% of said plastic material in the direction of advance. Transfer elements with helical threads connect opposite ends of the threads in the intermediate section with the threads of the inlet and outlet regions. The transfer elements of the two screws mutually engage one another to strip plastic material from one another and from the walls of the bores.

Abstract: Means are provided for supplying a liquid surfactant solution, for supplying a gas under pressure, for mixing the liquid surfactant solution and the pressurized gas to form a liquid coarse dispersion of relatively large gas bubbles, and for receiving the liquid coarse dispersion to generate a liquid fine dispersion of relatively small micron-size gas bubbles.

Abstract: Multi-screw, continuous mixing and kneading machine for plasticizable compounds with screws, which rotate in a housing and which penetrate the cylindrical housing section, enclosing the screw concerned, and exhibit feed and discharge zones and intermediate melting, mixing and kneading zones, where the feed and discharge zones are formed by intermeshing screws that rotate in the same direction, and kneading elements are disposed in the melting, mixing and kneading zones. The kneading elements comprise axially extended polygons, whose surfaces are approximately flat and whose edges travel by one another with small clearance relative to the envelopes of the respective other polygon so as not to intermesh while rotating, where the edges of the housing section enveloping them maintain a distance that is significantly greater than the clearance.

Abstract: Process for mixing products uses an extruder having one or more screws, rotating in a cylinder, to determine forward movement of the material. A backward flow of material is generated by means of a counterthreading whose lead is opposite to that of the extruder screw. The backward flow on meeting the forward flow gives rise to increasingly thorough mixing while the material moves forward. The forward movement of the mixed material is ensured by providing the counter threading with a helical channel whose lead is the same as that of the extruder screw, or with channels or holes of varying sizes and position.

Abstract: The invention relates to a process and an apparatus for extracting fat from an animal material in which according to the invention, the fat is continuously melted and then extracted by passing the animal material through two successive zones, namely a melting zone (B) and an extraction zone (C), of a single housing in the form of an elongate sleeve (1) equipped, in the melting zone (B), with heating means (13) and, in the extraction zone (C), with filtering walls (16) for the passage of the melted fat, the sleeve (1) encasing two overlapping conveyor screws (2) driven in rotation.

Abstract: A continuous mixer with twin parallel rotors, a feed end and a discharge end is disclosed which is characterized by mismatched rotors. The apexes, or points at which the rotor tips change direction, are substantially misaligned as between the individual rotors of the pair.

Abstract: An apparatus for mixing animal feeds and the like comprises a rotor having two opposing end assemblies connected by a center shaft for rotation within a mixer box. A flighted outer auger is mounted in the terminal portion of each set of corresponding radial arms of each end assembly, parallel to the center shaft. Each outer auger is rotated by drive means within the first hollow rotor end assembly, powered by a high speed drive shaft, and the entire apparatus is rotated by a low speed drive shaft. The drive shafts extend from opposing end assemblies and are coaxial to the center shaft. An optional center auger or optional intermediately spaced augers, parallel to the center shaft, are rotated by drive means within the second end assembly, driven by one or more outer augers.

Abstract: The double reverse helix agitator with an internal conveying screw is used in a gas phase olefin polymerization reactor having at least one polymerization section and has helical flights defined by helical blades which are mounted to a shaft, which extend in opposite axial directions and which have approximately the same radius from the axis of rotation of the agitator. The shaft has a spiral screw thread thereon for conveying polymer particles axially by the agitator through a reactor vessel.

Abstract: A feed mixer includes a mixer tank with a bottom wall having two curved wall portions defining the bottom of a large main chamber and smaller auxiliary chamber with an elongated ridge therebetween. A rotor having several elongated rotor bars adjacent the outer periphery is supported in the main chamber for rotation in a direction for movement of the rotor bars across the bottom of the main chamber toward the auxiliary chamber. The auxiliary chamber includes a pair of stacked augers adapted for moving material from one end of the tank to the other in opposite directions. Material is thus continuously cycled from the main chamber into a lower portion of the auxiliary chamber where it is moved toward one end of the mixer, forced upwardly into an upper portion of the auxiliary chamber and then directed toward the opposite end of the tank while spilling back into the main chamber for efficient end-to-end mixing of even long stringy hay material.

Abstract: A feed mixer includes a mixer tank with a bottom wall having two curved wall portions defining the bottom of a large main chamber and smaller auxiliary chamber with an elongated ridge therebetween. A rotor having several elongated rotor bars adjacent the outer periphery is supported in the main chamber for rotation in a direction for movement of the rotor bars across the bottom of the main chamber toward the auxiliary chamber. The auxiliary chamber includes a pair of stacked augers adapted for moving material from one end of the tank to the other in opposite directions. Material is thus continuously cycled from the main chamber into a lower portion of the auxiliary chamber where it is moved toward one end of the mixer, forced upwardly into an upper portion of the auxiliary chamber and then directed toward the opposite end of the tank while spilling back into the main chamber for efficient end-to-end mixing of even long stringy hay material.

Abstract: An apparatus and method for determining the heating value of gaseous fuels is disclosed which include the novel means for establishing a mixture of air and the gaseous fuel of interest in known volumetric proportions. An electrochemical sensor is provided to sense the products of combustion of the precise volumetric mixture and the output of the sensor is indicative of the relation of the mixture to a stoichiometric mixture of fuel and air. This system is provided for adjusting the proportions of fuel and air in the mixture of interest in response to the output of the electrochemical sensor until the sensor indicates that the mixture of known proportions is substantially stoichiometric. The system is provided for determining the heating value of the fuel from a known relationship between the heating value of the constituents of the fuel and the amount of oxygen required for stoichiometric combustion.

Abstract: Provided is a new granulator for preparing granules from a powdery material by agglomerating it through a kneading action, comprising a receptacle and two screws having screw blades disposed within the receptacle in parallel alignment to ensure intermeshing of the screw blades. The novel granulator consists of a feeding zone, a kneading zone divided into an upstream section and a downstream section, and a breaking zone. In the feeding zone, the blades on the two screws are forwardly conveying blades. In the upstream section of the kneading zone, on one screw a backwardly conveying blade is first provided and a forwardly conveying blade follows, and on the other screw, a forwardly conveying blade comes first and a backwardly conveying blade follows, said alternate arrangement occurring at least once in each screw. In the downstream section of the kneading zone, the blades on both of the screws are backwardly conveying screws.

Abstract: In a mixing device adapted to mix materials flowing therethrough from an inlet end to an outlet end in which there are provided agitating elements as on a rotating shaft, there is provided an internal recycling means to impel a portion of the material, flowing from the inlet end toward the outlet end, countercurrently to the main flow, i.e., toward the inlet end to effect an in situ recycle. There is disclosed a pelleting apparatus having a horizontally-disposed substantially cylindrical shell, a rotating, pin-equipped shaft, inlet and outlet means for feeding material to be pelleted and pelleting liquid into and through the device, the shaft having mounted thereon, at least over a length thereof, at least one reverse-flight or blade adapted to cause motion toward the inlet end of the device of a portion of the mass being pelleted.

Abstract: A grinder-mixer having a trough-shaped mixing tank, a horizontal transfer and mixing auger seated along the bottom of the tank and extending into the hammer mill, and a vertical auger in the tank for elevating the material for recirculation or discharge. Mixing capacity is increased with the larger tank and bridging of material is minimized with steeply inclined tank walls, a centrally mounted agitator and the trough-mounted mixing auger. Power train demands are reduced through utilizing only two auger conveyors to transfer material from the hammer mill, mix it in the tank and elevate it for recirculation or discharge. Improved intermixing is provided through stepped pitch flights provided on the horizontal mixing auger.

Abstract: Disclosed is a device for mixing and/or conveying, in particular for mixing and conveying a developer composition in an electrophotographic copying machine. The device comprises an elongated member which is rotatable about its longitudinal axis, this member comprising a T-shaped lateral cross-section which has been spirally twisted about its longitudinal axis, whereby at least two portions of the T cross-section comprise helically extending mixing and/or conveying elements. Also disclosed is a method for manufacturing such a device.

Abstract: An interlocking mixer-auger mechanism especially adapted to transport and mix developer compositions containing toner, or similar materials, prior to the feeding of such materials through an output port in the operation of a xerographic copying machine.

Abstract: A mixing-tank trailer is provided comprising a trailer frame supported on a differential housing which encloses half-axles having wheels attached on the outer ends thereof. The differential housing includes a central output shaft disposed normal to the half-axles and coupled to be driven by the half-axles through differential gearing. A cylindrical tank disposed lengthwise on the frame is provided with a rotatable internal shaft having mixer blade members attached thereto for mixing a liquid carried in the tank. The internal shaft is coupled for rotation by a reducing gear arrangement driven by the central output shaft which is driven by the rotation of the wheels of the mixing-tank trailer as it is being towed by a vehicle.

Abstract: The invention is directed to apparatus for conditioning and dispensing particulate solid material which includes a conditioning chamber having an upper receiving inlet and a dispensing outlet, a first auger disposed within the chamber and extending towards the outlet and having a helical blade for propelling material towards the outlet in response to rotation thereof, a second larger open spiral auger mounted coaxially with respect to the first auger for feeding the material into the first auger in response to rotation of the second auger, the second auger being disposed concentrically and in overlapping relationship with respect to the first auger, a third open spiral auger mounted in side-by-side parallel relationship with respect to the second auger, the third auger being of substantially the same diameter as the second auger, and a driving mechanism for rotating the three augers at a predetermined ratio of speeds one with respect to the others.

Abstract: In accordance with the process, a continuously fed viscoplastic material is subjected to a vacuum treatment in a thin layer with subsequent formation of a higher pressure zone from the material. Then the material is again subjected to the vacuum treatment in a thin layer, and a second higher pressure zone is formed from the material prior to feeding it to a next production stage. In an apparatus for carrying out the process for vacuum treatment, there is provided a container accommodating an auger having main and auxiliary turns running in opposite directions for feeding the material in a thin layer and for forming higher pressure zones from the material. There are provided a pipe in the container which is connected to a vacuum system for forming a vacuum zone in the container and means returning the material from one of the higher pressure zones back to the vacuum zone. The production process of vacuum treatment is thereby considerably accelerated and the material of better quality is obtained.

Abstract: A continuous mixer with twin parallel rotors, a feed end and a discharge end is disclosed which is characterized by mismatched rotors. The apexes, or points at which the rotor tips change direction, are substantially misaligned as between the individual rotors of the pair.