Abstract: A device 10 for dissolving a coagulant having a rotor chamber 13 supporting rotors 21 around the horizontal axis, wherein a mixture of the coagulant and water is fed to the rotor chamber 13, the liquid level of the mixture is kept at a medium level of the rotors 21, and the mixture can be stirred vertically by means of the rotation of the rotors 21.

Abstract: An enclosed kneading apparatus which can smoothly knead and disperse kneaded products of various kneading conditions without the maintenance of a rotor moving mechanism for a first and second rotors and the operation which sacrifices the handling capacity of the kneading apparatus and at the same time, prevent an excessive increase in the temperature of the kneaded products. In the apparatus, the kneaded product of a desired kneading state is obtained by flowing a kneading object in tip clearances between the inner wall of a chamber and a first and second rotors while rotating the first and second rotors in the chamber, and by imparting a shearing force to disperse the kneading object. The respective first and second rotors are provided with three long wings in helical fashion each having a plurality of tip portions for providing a plurality of three tip clearances in the axial direction.

Abstract: A cheese processing vat of the type having a pair of interconnected generally cylindrical wall portions with agitator panels rotating therein to sweep generally cylindrical volumes includes agitator panels which are driven to rotate in opposite directions such that the panels move through a common swept volume between their axes of rotation in the same direction. The panels are mounted such that one panel leads the other during movement through the common swept volume.

Abstract: A screw extruder (10), including a barrel (18) having a bore (26) which defines an inner surface (24). At least one extruder screw (28) is positioned within the bore (26), each screw (28) further including a central shaft (34) and at least one screw flight (30). Each screw flight (30) further includes a front pushing face (36) and a rear face (38). The profile (40) of each front pushing face (36) acts with the inner surface (24) of the barrel (18) to form a progressively narrowing passage (46) through which material is forced into multiple regions of high elongational and shear stress (48) which act to break down agglomerates of material and thus dispersively mix the material.Also presented is a screw extruder (100) having a single screw (28) which includes dispersion disks (102) which are rotationally offset from one another and whose design is not constrained by interaction with a second disk, which provides improved distributive and dispersive mixing.

Abstract: The invention refers to a device for mixing chemicals into a pulp suspension, where a high-speed rotor (5) with an open center is mounted inside a mixing chamber (2). It is mainly characterized by at least one further high-speed rotor (5') with open center being provided, the areas covered by these rotors (5, 5') overlapping and the spacing between the axis of the rotors (5, 5') being selected so that the rotor arms (8, 8') extend almost to the center of at least one other rotor (5, 5').

Abstract: An agitator for providing uniform and rapid material mixing is provided comprising a first sweep blade mechanically coupled to a second sweep blade. The first sweep blade extends from a first sweep blade origin to a first sweep blade terminus along a first substantially helical path defined about a first helical axis. The second sweep blade extends from a second sweep blade origin to a second sweep blade terminus along a second substantially helical path defined about a second helical axis. The respective orientations of the first sweep blade along the first substantially helical path and the second sweep blade along the second substantially helical path define a first flow direction extending from the first sweep blade origin to the second sweep blade terminus. An agitator assembly is provided comprising a first agitator, a second agitator, a mixing bowl enclosing the first and second agitators, and a driving assembly coupled to the first and second agitators.

Abstract: A method and an apparatus for continuously extracting a wax component contained in a solid residue with a solvent, in which method, the solid residue obtained from the juice of sugar cane is used as a raw material. To make the extraction time uniform and to obtain the wax at a high efficiency of extraction, the solid residue and an organic solvent for extraction are mixed under shear force and agitated in directions perpendicular to the flow direction. The mixing is conducted under an agitated flow condition so as to form a substantially plug flow in the flow direction.

Abstract: The invention relates to a fully self-cleaning reactor/mixer having a large freely usable volume, that cleans itself kinematically, consisting of two or more parallel shafts (2, 2') rotating in opposite directions, on which are located spirally arranged, axially offset paddles (3, 3') with scrapers (4, 4', 5, 5') on the front and rear of the paddles, and a surrounding housing (1). Since all the scrapers (4, 4') on the upstream side of the paddles (3, 3') convey the material concerned outwards and all the scrapers (5, 5') on the downstream side of the paddles convey the material inwards, axial conveyance is obtained.

Abstract: A twin screw extruder type batch mixer that is comprised of two screws parallel to each other with the distance between the two screw center lines being larger or equal than the half of the sum of two screw diameters and the two screws conveying material in the opposite direction during mixing and reacting stage and the same direction during charging and discharging stages; and a barrel casing completely enclosing said screws which can run clockwise and counter-clockwise independently.

Abstract: A machine for conditioning and dispensing loose fill insulation material, such as cellulosic insulation, fiber glass insulation and rock wool insulation. The machine includes a hopper, a conditioning chamber, an air lock and a blower for pneumatically dispensing the material. The conditioning chamber is equipped with three rotating shafts with helically arranged spikes which serve as conveyors as well as dispersers. A lower conveyor shaft moves the material toward the opening into the air lock, while the two uppermost conveyor shafts move the material in the opposite direction. Thus, the same assembly which conveys the material to the air lock also conditions the material. Moreover, the counter current flow pattern churns or agitates the insulation material while the individual spikes disperse it. A single motor drives the rotation of the conveyor shafts and the rotation of the vanes in the air lock.

Abstract: A hermetically closed kneading apparatus includes a casing member (1) having a chamber (2) and one pair of counter rotating, parallel rotors (3) (4). Each of rotor has three long blades (18) (19) (20) and of which the central axes (17a) (17b) of the rotors are set apart from each other so that the long blades may not mesh with each other. Each of the long blades extends spirally around the central axis (17a) (17b) of the rotors and are set apart from each other by an equivalent angle in a circumferential direction of the rotor. Each rotor has a profile corresponding to any one of the following features: (a) the profile is almost triangular. (b) the profile includes a straight line in each non-action (22) surface of the rear surface (26) of each blade with respect to a rotation direction, the straight line starts from edge (18a) of a tip (21) of each blade (18).

Abstract: A continuous kneading machine for doughs comprises a tub-shaped container, open at the top, which contains at least one pair of identical synchronously counterrotating kneading shafts. A series of U-shaped bracket components are attached to each kneading shaft longitudinally. The U-shaped bracket components are angularly offset relative to each other around the shaft circumference, with each bracket component being inclined in the direction of motion, such that the bracket components form a helical profile along the kneading shaft. A "manual" type of kneading is achieved due to the shearing off, pulling apart, and pressing together actions of the inventive shaft and bracket configuration.

Abstract: A shearing action of rubber by a rotor wing has a relation to a wing perpendicular component P.sub.z of P (see FIG. 4), and the larger the value of P.sub.z, the larger the shearing action. An agitating action of rubber has a relation to a wing parallel component P.sub.x of P (see FIG. 4), and the larger the value of P.sub.x, the larger the agitating action. In order to maintain the shearing action and the agitating action of rubber at a high level, in an internal rubber mixer a helix angle of a long wing 2 is set in a range of not less than 30.degree. and less than 50.degree.. Further, an axial directional length L.sub.s of a short wing 3 is made larger than that (.delta.) of a cut-off portion of the long wing 2. A rubber flow f-1 is thereby prevented from passing straight through a rotor space portion.

Abstract: A multi-axis mixer/reactor with a large available useful capacity, which is kinematically self-cleaning, comprising at least one housing one, two or more parallel, contrarotating shafts 2, 2', on which intermeshing groups of gear wheels 3, 3' are disposed in an axially spaced-apart manner. The gear wheels 3, 3' are connected to one another by kneading bars 5, 5', while further kneading bars 4, 4' which are connected in each case only to one gear wheel are likewise disposed on the end faces of the gear wheels.

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 bioreactor which and be used with substrates which are difficult to attain sufficient dispersion is made up of a reaction vessel 1 having a reaction chamber 2 surrounded by a water jacket 3 for maintaining a predetermined constant temperature. The reaction chamber 2 is provided in the vicinity of the inner wall surface 2a of the reaction vessel 2 with a plurality of upright screws 6 and 7 in an adjoining relationship to each other, each screw having a screw thread or a helical fin 6b, 7b of reverse turning sense with each other so that the reactor vessel contents are subjected to a convectional flow induced by the rotation of the screws in the reverse sense to each other by a gearing 14, 15. The substrate therein is subjected to a uniform agitation and to a milling and sieving actions in the portion 13 where the fins of the screws face each other, before the reaction product is removed by a screw conveyer 25.

Abstract: This invention relates to a chaos washing machine for improving washing power and preventing the twist of clothes comprising a first washing tank having a plurality of induce holes for inducing the water current in which a detergent dissolved into the space where the laundry is contained, a second washing tank for enclosing the washing tank to be filled with water and a detergent, water current fans and fan motors occurring a turbulent flow to water in which a detergent is dissolved and pushing the turbulent flow from the second washing tank through the induce holes into the first washing tank and a washing tank motor for rotating the first washing tank.

Abstract: A batch type kneader (1) is provided with a chamber (3) having a material supply port (5) which can be closed, a pair of rotors (4A, 4B) which are disposed in the chamber (3) so as to be rotatable in opposite directions, and wings (10) provided over the outer circumferential surfaces (10A) of the rotors (4A, 4B) in such a way that they (10) mesh with each other. In this kneader (1), a ratio S/D of a clearance S between the outer circumferential surfaces (10A) of the wings (10) of the rotors (4A, 4B) and an interior wall surface of the chamber (3) to an inner diameter D of the chamber (3) is set in the range of 0.01-0.02. The lands on the wings of the rotors have chamfers.

Abstract: The invention relates a mixer assembly for mixing liquids in a tubular container including: (a.) an electrically conductive central shaft member, (1) having a top end portion and a bottom end portion; (2) where the central shaft member is oriented longitudinally along the length of the mixing blade assembly; and (3) wherein the central shaft member is threaded along at least a portion of its circumference; (b.) a plurality of shearing members fixedly attached to the central shaft member for shearing the liquids when the shaft member is rotated; (c.

Abstract: A multiple-shaft mixer/reactor with a large free usable volume which cleans itself kinematically consists of two or more parallel shafts (1) rotating in opposite directions, on which are mounted, helically offset, feed blades (2) which are connected to one other by axially extended kneading bars (3), and a surrounding casing (4) as well as optionally an inlet (5) and an outlet (6) for the material to be mixed.

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 process and a device are disclosed for mixing-in liquid, pourable or lumpy substances into masses of foodstuffs, in particular foams or doughs. In order to ensure that neither the structure nor the form of the substances or of the foodstuff masses are modified during the mixing process, an elongated mixing container (1) contains at least two horizontal, spiral helices (4a, 4b) that turn in opposite directions, the diameters of which partially overlap without contact and the pitches of which are inclined in the direction of transport of the material to be mixed, so that a mixing section (4d), along which the substances can be mixed without pressure into the foodstuff mass, is formed between an input (9) and an output (3).

Abstract: An apparatus in which a glass rod is inserted into a spinning oven to perform spinning and glass fiber yarn is drawn out at a shutter located in the lower end of the spinning oven, comprising a timer for measuring a time from the start of heating of the glass rod inserted into the spinning oven until the fall of glass drops formed by the heating of the glass rod and a detector below the shutter for detecting the fall of the glass drops, for the purpose of automatically opening the shutter when a preset time of the timer is over and automatically closing the shutter by detection by the detector, thereby dispensing with a worker's monitoring of the spinning oven for opening and closing the shutter and preventing a danger of giving damage to the shutter and the spinning oven in the event of delayed shutter opening-closing timing.

Abstract: A juicer or a juice extractor having a vertically-arranged grinding chamber and compression chamber. The material to be ground into juice is first ground in the grinding chamber and then compressed in the compression chamber by a pair of Archimedes' screws; and in this case, the direction of movement of the material in the compression chamber is designed so as to be opposite to that in the grinding chamber.

Abstract: An apparatus for continuously mixing and heating flowable materials comprises an inclined housing, at least two rotatable screws within the housing with each screw having a rotatably mounted shaft and a screw flight. The screws are arranged in parallel juxtaposition with their respective flights of opposite hand intermeshing. The shafts are driven in opposite rotation to each other and each shaft is hollow and is provided with electric heaters within the shaft for heating the flowable material.

Abstract: Mixing method and apparatus using two shafts which rotate in a reverse direction with respect to each other, having mixing pins branched in a V shape or Y shape and a mixing bath arranged in such manner that fibrous and powder materials are input to one end, and mixed while being moved along the length of the shafts with the obtained mixture being discharged at the other end. A mixing appratus and mixing method allows for uniformly mixing fibrous material, particularly semi-wetted fibrous material with powder material with high efficiency.

Abstract: A method of treating sewage sludge is provided, in which the sludge is mixed with an alkaline material in such a way as to provide intimate surface contact that enables the alkaline material to permeate even small particles of the sludge, and to deliver the resultant product in a granular, scatterable form. The sludge and alkaline material are delivered to a mixing chamber and are confronted therein with a screw type mixer having generally helical flighting carried by a shaft, with the mixer being rotatably driven in generally horizontal arrangement to convey the mixture toward an outlet, with the mixture that is being mixed being maintained at a level in the mixer such that a spiral rolling action is imparted to the sludge and alkaline additive by the flighting engaging particles of sludge and rolling those particles up over the rotating shaft of the screw mixer.

Abstract: The invention relates to disc reactors with a large free usable volume which are kinematically self-cleaning, consisting of two or more parallel counterrotating shafts, on which toothed discs with scrapers, which are distributed over their circumference, are disposed, and a surrounding housing. The toothed discs are arranged perpendicularly to the axes of rotation in planes which are echeloned one behind the other such that they mesh with one another.

Abstract: An apparatus for seeding, mulching, and fertilizing soil is described. The apparatus includes: a mixing tank adapted for mounting upon a motorized land vehicle for containing an aqueous mixture of seed and other soil conditioning materials; an agitator positioned within said tank for combining seed and other soil conditioning materials with water; a movable spray cannon in fluid communication with the mixing tank for spraying the aqueous mixture delivered thereto by an attached pump onto the soil surface; an auxiliary hose of flexible material for spraying the aqueous mixture; a mulch blower affixed to said tank for delivering a dried mulch material to the soil surface; and, a hydraulic power transmission system for transmitting power from the motorized land vehicle to the agitator, pump, and mulch blower.

Abstract: This invention is directed to an apparatus and method for wetting and dissolving finely divided dry particles, including hygroscopic particles such as coffee fines, in a liquid, including viscous liquids such as concentrated coffee liquor, in a manner in which foaming, the presence of wet lumps and liquor degradation are minimized. The apparatus includes a dissolving tank containing at least one pair of counter-rotating drums partially submerged in a body of the dissolving liquid. The tank includes a liquid inlet and a discharge conduit which maintain a predetermined level of liquid in the tank. A powder feeding device mounted above the tank discharges a falling curtain of particles onto a thin layer of liquid on the surface of one of the drums in each counter-rotating pair.

Abstract: Disc reactors with large free useful volume which clean themselves kinematically, consisting of two or more parallel shafts, rotating in the same or opposite directions, on which are located axially staggered, circular discs with scrapers distributed over their periphery, and an enclosing casing.

Abstract: The mixer includes a chamber having first and second, side-by-side tub like cavities with first and second rotatable shafts located in the first and second cavities respectively. Each shaft has two ribbon members coupled to the shaft and which extend helically around the shaft along a substantial length of the shaft with the two ribbon members located about 180 degrees apart. The ribbon members of the two shafts do not intermesh but are located close to each other. A drive mechanism is provided for rotating the two shafts in opposite directions to cause the ribbon members of the two shafts to move toward each other below the plane of the two shafts, upward, and away from each other above the plane of the two shafts for mixing the particulate material. The ribbon members of the two shafts cause the particulate material in the two cavities to move in opposite directions along their lengths.

Abstract: A rotor (5) particularly for mixing machines of internal type (1) for elastomers and plastomers, equipped with at least one pair of blades (6) each projecting from the cylindrical hub of rotor (5) starting from flank (5c) of the rotor and set helically thereon, in which at least one of such blades (6) has at least one split delimited by two blade sections (6a, 6'a; 6b, 6'b; 8a, 8'a; 8b, 8'b; 10a, 10'a) located parallel to one another, one section (6a, 6b, 8a, 8b, 10a) having one of its ends located at flank (5c) of rotor (5) and at least one section (6a, 6'b, 8'a, 8'b, 10'a) being separated from the previous one or located on the same helix or on parallel helices to create at least one passage opening (7) capable of bringing about diversion of the flow of material during mixing.

Abstract: A continuous kneading machine capable of achieving selfcleaning, improvement in kneading efficiency, and reduction in abrasion of paddles is provided. This continuous kneading machine is characterized in that sectional shape of one paddle in a section perpendicular to a rotation shaft is formed of n (where n is an integer, and n.gtoreq.2) pairs of major radius parts and minor radius parts which are alternately arranged with equal angle and formed by a gentle curve, and that sectional shape of another paddle is formed of m (where m is an integer, m.gtoreq.2, and n.noteq.m) pairs of major radius parts and minor radius parts which are formed by an escribed envelope curve drawn by rotation in cooperation with the one paddle, and in which rotation of another paddle is performed in a direction different from the one paddle at a different ratio of rotation frequency.

Abstract: This invention is directed to an apparatus and method for wetting and dissolving finely divided dry particles, including hygroscopic particles such as coffee fines, in a liquid, including viscous liquids such as concentrated coffee liquor, in a manner in which foaming, the presence of wet lumps and liquor degradation are minimized. The apparatus includes a dissolving tank containing at least one pair of counter-rotating drums partially submerged in a body of the dissolving liquid. The tank includes a liquid inlet and a discharge conduit which maintain a predetermined level of liquid in the tank. A powder feeding device mounted above the tank discharges a falling curtain of particles onto a thin layer of liquid on the surface of one of the drums in each counter-rotating pair.

Abstract: A viscous liquid processor includes a low-speed shaft and a high-speed shaft extending in parallel within a casing, and a plurality of agitator blades fixed on each of the shafts and spaced along its axial direction so that the blades on one shaft enter the spaces between the blades on the other shaft. Each of the agitator blades is generally formed in a thick disk-like configuration having a plurality of thick blade members, such a thick blade member having a parallelogrammic cross section. With this simple arrangement, delivery and shearing of highly viscous liquid can be performed to improve the agitation and stirring effects.

Abstract: A preferred preconditioning device for use with an extruder includes two juxtaposed, frustocylindrical, intercommunicated chambers one of which presents a greater cross-sectional area than the other. A respective pair of rotatably driven mixing shafts extend axially through corresponding chambers with each mixing shaft having a plurality of mixing elements coupled therewith. The mixing elements are arranged, in order to present in cooperation with the chambers, a plurality of conditioning zones preferably including a mixing zone for initially mixing the material, an intermediate retention zone providing increased retention time for enhancing equilibration between solid and liquid portions of the material, and a final tertiary zone for comminuting clumps of material.

Abstract: A method and apparatus of mixing particulate matter carried on a tray includes moving the tray onto a support structure which securely holds the tray, rotating the support structure, with tray, to an upside-down position over a bin, which is mounted in the support structure, so that the particulate material falls from the tray into the bin and mixing the particulate material in the bin. The support structure is then rotated, again with tray, to a rightside-up position, and the bin to an upside-down position, so that the particulate material falls from the bin back into the tray. The tray is then moved from off the support structure and the particulate material which is now mixed placed into use as desired by the user.

Abstract: An enclosed food processing vat is provided having two or more generally horizontally-oriented partial cylindrical inner wall sections, each inner wall section conforming to a first portion of an swept volume created by the rotation of an agitator means about a horizontal shaft, the distance between the shafts being slightly greater than the radius of the swept volume so that a second portion of the swept volume for each shaft intersects and overlaps the swept volume of adjacent shafts. Each shaft is provided with a series of combined cutting and stirring paddles comprising a series of blades arranged both perpendicular to the shaft and parallel to the shaft that are sharpened on one side only and fixed so that when the shaft is rotated in one direction cutting will take place; whereas, when the shaft is rotated in the other direction stirring will take place.

Abstract: A machine for conditioning granular materials includes a dual section chamber through which a transport belt travels and in the first chamber of which are a pair of closely spaced counter-rotating heads so driven that the material is moved toward the narrow gap between the heads. The shafts on which the heads are mounted extend upwardly, are parallel and also are inclined upwardly at a minor angle to the vertical in an upstream direction with respect to the direction of movement of material through the equipment. Each head is equipped with blades of two different designs to perform different functions.

Abstract: A devolatilizer, especially suitable for high viscosity polymers, comprising a vacuum chamber into the top of which the polymer is introduced after having passed through a tubular or equivalent heat exchanger, with a low shear mixer located in the vacuum chamber and a pumping device for removing the devolatilized polymer from the bottom of the vacuum chamber. Devolatilization of high viscosity polymers is achieved in this apparatus and method without severe degradation.

Abstract: Improved methods of operating batch or continuous blenders (10) having a tub (11) and twin agitators (17,18) extending parallel to each other, each agitator having a horizontal shaft (19) and an agitator ribbon (12) wound helically around the shaft. For batch blending, the two agitator ribbons are wound in the same direction around the shafts, and the shafts are rotated in opposite directions for folding the product into the middle of the tube for mixing. The agitators are periodically reversed in direction of operation to prevent the build-up of product at the end corners (36,37) of the tub and the consequent mechanical breakdown of ingredients which has occurred with previous blenders. For continuous blending to be carried out in a tub with twin agitators, the agitator ribbons are wound in opposite directions on their shafts.

Abstract: A kneading apparatus for an elastomer has a casing with a pair of rotors mounted therein. The casing defines a rotor chamber having a cocoon shaped cross-section. The pair of rotors are rotatably disposed in the rotor chamber, and extend in parallel with each other. Each of the rotors is integrally provided with at least two continuous blades, the rotating blades define a space therebetween in which rubber-like material is introduced for kneading. Each of the blades is continuously provided along a length of the rotor, and each of the blades includes a first blade portion oriented in a first direction at axially one end portion of the rotor, and a second blade portion oriented in a second direction. The first blade portion is provided at rotationally advanced position, and the second blade portion is provided at rotationally rear position.

Abstract: The screw conveyor has at least one feed and mixing screw having a plurality of vanes extending radially from a shaft arranged in at least one series like a coil or spiral. In particular, the screw conveyor can have at least two substantially equal motorized feed and mixing screws rotating in opposite rotational directions and positioned substantially parallel with each other in a common trough. The screws are located beside each other spaced so that the vanes of one screw engage in the gaps between the vanes of the neighboring screw. To maintain at least as thorough a mixing of bulk materials as was the case heretofore while achieving a reduction in the structural length of the screw conveyor the screws are each provided with more than one helical flight of vanes.

Abstract: Two horizontally opposed winged rotors move in synchronism to define a cyclically varying window between them such that improved mixing results are achieved. The wings are provided in diagonally opposed pairs such that the leading ends of all wings move in pairs through the horizontal plane of the window.

Abstract: With the use of a distributor unit, which is reciprocable over and along an oblong prepressing vat for cheese production, it has already been proposed that a uniform distribution of the whey/coagulum mixture can be achieved by a horizontal wing rotors in a transverse distributor container, such rotor or rotors being rotated to lift the mixture up to an overflowing edge of the container while isolating the mixture from the turbulent mixture receiving area of the container. However, it is experienced that coagulum lumps may build up on the overflowing edge and thus disturb an even overflow. To avoid this problem two interengaging wing rotors are mounted at the bottom of the container so as to sluice down the mixture along opposite, correspondingly arched bottom/side portions to a central lowermost outlet slot, whereby the risk of lump formations is practically eliminted without compromising the desired uniform distribution of the coagulum.

Abstract: A dough developer is provided having an elongated chamber and a pair of dough conditioning rotors extending axially of the chamber. An inlet and an outlet are provided at respective opposite ends of the chamber to permit dough to be pumped through the chamber. A plurality of conditioning bars are mounted on a respective shaft of each rotor and extend radially outward therefrom with these bars axially disposed as between the two rotors so that bars revolve in overlapping planes. Each of the conditioning bars is of a U-shaped configuration formed from a cylindrical rod with the conditioning bars disposed in planes extending substantially axially relative to the rotors.

Abstract: In a rubber-like material kneading apparatus having a pair of rotors with radially outwardly extended long vanes in a chamber, each of the rotors has at least three long vanes which are arranged around a rotary shaft at equal angular intervals in such a manner that the cutting angle formed by the rear surfaces of the long vanes and the tangential lines at the outermost ends of the long vanes is larger than 40.degree., whereby the rubber-like material can be kneaded with high efficiency.

Abstract: A closed mixing machine includes a pair of nonintermeshed rotors rotatable in chambers at a predetermined differential rotation ratio and having respective rotor tips set at a predetermined differential phase angle. The predetermined differential rotation ratio is set to be 1.0 and the predetermined differential phase angle is set to be 0 to 45 degrees so that the mixing machine performs improved macro-dispersion.

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.