Abstract: A tool for a food processor has a first member driven in rotation and a second stationary member which have complementary working surfaces for rolling engagement formed of a stone-like material for working ingredients into a thin paste-like form, the surfaces being conical or cylindrical.

Abstract: A beater for a mixer includes a shaft including a mixer attachment portion, the shaft defining a rotational axis of the beater. A first stabilizing arm extends outwardly from the shaft and a second stabilizing arm extends outwardly from the shaft and spaced circumferentially from the first stabilizing arm. A first blade has an upper end connected to the first stabilizing arm at a location spaced from the shaft, a lower end located proximate the rotational axis of the beater and a leading face that transitions from a substantially vertical orientation at the lower end to a downwardly angled orientation at the upper end. A second blade has an upper end connected to the second stabilizing arm at a location spaced from the shaft, a lower end located proximate the rotational axis of the beater and a leading face that transitions from a substantially vertical orientation at the lower end to a downwardly angled orientation at the upper end.

Abstract: A beater for a mixer includes a shaft (14) including a mixer attachment portion (16), the shaft defining a rotational axis (A) of the beater. A first stabilizing arm (18) extends outwardly from the shaft and a second stabilizing arm (20) extends outwardly from the shaft and spaced circumferentially from the first stabilizing arm. A first blade (22) has an upper end connected to the first stabilizing arm at a location spaced from the shaft, a lower end located proximate the rotational axis of the beater and a leading face (40) that transitions from a substantially vertical orientation at the lower end to a downwardly angled orientation at the upper end. A second blade (24) has an upper end connected to the second stabilizing arm at a location spaced from the shaft, a lower end located proximate the rotational axis of the beater and a leading face (42) that transitions from a substantially vertical orientation at the lower end to a downwardly angled orientation at the upper end.

Abstract: An animal feed mixer includes a housing forming first and second chambers. An upper auger and a lower auger are mounted in one of the chambers and a rotor is mounted in the other of the chambers. The rotor includes a plurality of arm assemblies that are staggered with respect to one another, that overlap one another in length, and that have paddles affixed to the outer ends of radially extending arms.

Abstract: A mixing member designed for assembly in an axially rotating manner inside the cylindrical bowl of a blender; the mixing member having a number of longitudinal blades extending parallel to a longitudinal reference axis of the mixing member and spaced angularly about the longitudinal axis to form a “squirrel cage” structure bounded laterally by a cylindrical reference surface coaxial with the longitudinal axis; each of the longitudinal blades has an outer lateral edge lying on the cylindrical reference surface and having at least one scraping device, which includes a scraper hinged to the body of the longitudinal blade to project from and rotate about an axis of rotation locally substantially parallel to the outer lateral edge of the longitudinal blade and/or to the longitudinal axis of the mixing member, and an elastic member which pushes a wedge-shaped transverse edge of the scraper radially onto the cylindrical inner surface of the bowl.

Abstract: The present invention is an attachment to a mixer blade for wiping the sides of a container and producing a mixture that is uniform and consistent. The attachment is placed onto the mixer blade either temporarily or permanently. After the attachment is on the mixer blade, the rotating spin of the mixer blade and the angular positioning of the flexible fins wipe the mixture on the sides of the container to the center of the container. By using a flexible material for the fins, the fins come into direct contact with the container while not damaging the container. The direct contact allows for the complete wiping of each side of the container. The attachment is easily cleaned.

Abstract: An animal feed mixer includes a housing forming first and second chambers. An upper auger and a lower auger are mounted in one of the chambers and a rotor is mounted in the other of the chambers. The rotor includes a plurality of arm assemblies that are staggered with respect to one another, that overlap one another in length, and that have paddles affixed to the outer ends of radially extending arms.

Abstract: A food mixing attachment includes two mixing arms extending down from an engagement member that is configured for engaging a mixer. A respective flexible blade is on each arm and has a contour generally like that of a bowl. During the mixing process the blades scrape food from the bowl surface into the interior of the bowl.

Abstract: An animal feed mixer includes a housing forming first and second chambers. An upper auger and a lower auger are mounted in one of the chambers and a rotor is mounted in the other of the chambers. The rotor includes a plurality of arm assemblies that are staggered with respect to one another, that overlap one another in length, and that have paddles affixed to the outer ends of radially extending arms.

Abstract: The invention relates to a horizontal mixer with a cylindrical mixing vessel and a horizontal shaft located in the mixing vessel, which shaft is connected with at least one mixing tool and at least one scraper, with which a or the lowermost point of the interior of a mixer can be reached.

Abstract: A drum for hanging from the ceiling constituting the floor of the second story of a grain elevator. The device is self-contained, and has top closure elements with a central feedhole, and a bottom closure element with a central discharge hole. It includes a rotary spreader and coaters, and an applicator, for spreading grains and mixing them, and for mixing fluid chemicals with the grains. Repeated mixing steps are performed. The grains are introduced into it from the second floor. It can receive the grains and chemicals from various sources including chutes from hopper bins, belts, and screws.

Abstract: A pin conveyor for pasty materials such as animal waste including a housing with a cylindrical inner surface extending along and about an axis. Within the housing surface, a shaft is mounted for rotation about the axis and has a plurality of pins attached to it in a substantially helical pattern. The pins have sleeve members slidably mounted about them wherein in operation, the sleeve members are centrifugally impelled outwardly of the pins to contact and scrape clean the housing surface as the shaft is rotated about the axis. The cylindrical outer surfaces of the sleeve members preferably overlap or are at least tangent to one another when viewed in a plane perpendicular to the rotational axis so as to effectively contact and scrape clean the entire housing surface surrounding them.

Abstract: A food processing appliance includes a reservoir to receive water, a heater to produce steam from any water in the reservoir and a food-containing vessel positioned to receive steam from the heater. The vessel has a number of apertures that are sized to allow ingress of the steam to the vessel, yet curtail egress of any pureed food in the vessel therethrough. A carrier is mounted movably with respect to the vessel and a motor causes relative movement between the carrier and the vessel. A beater extends into the vessel from the carrier.

Abstract: The present invention relates to a balling drum assembly including a wear resistant insert. The balling drum assembly includes an inclined rotary drum member having an inlet at its one end for receiving agglomerative material and at its other end an outlet for balls formed from the agglomerative material. At least one scraper blade assembly is operatively attached to the drum member parallel to the axis of rotation of the drum member. Each scraper blade assembly includes a blade support member and separate blade segments secured eccentrically to the blade support member with respect to the axis of rotation of the drum member. Each blade segment includes a wear resistant insert.

Abstract: The present invention is an apparatus for processing material having a chamber (100), a rotatably driven shaft (104) extending within the chamber to which is attached at least one element (110) which engages the material (102) in the chamber during rotation thereof and a drive mechanism (150, 170, 200 and 250) for rotating the driven shaft.

Abstract: An apparatus for processing dispersions of solids in a fatty phase has at least two parts (1, 4) which can be driven with the aid of at least one drive and caused to rotate relative to one another, form a processing gap (6, g1, g2, g1′, g2′) between one another and are mounted relative to one another by means of at least one rotary bearing (2 or 3). One part is in the form of processing container (1) having at least one feed orifice (9) and at least one outflow orifice (11). The other part (4) is arranged essentially concentrically with the first part (1) and with the axis of rotation (A). At least one of the two parts (1 or 4) is provided with shearing tools (7, 8) on the surfaces (12, 16) facing one another. The processing container (1) is essentially conical, the cone having its smaller end face on the side of the feed orifice (9).

Abstract: An apparatus for processing dispersions of solids in a fatty phase has at least two parts (1, 4) which can be driven with the aid of at least one drive and caused to rotate relative to one another, form a processing gap (6, g1, g2, g1′, g2′) between one another and are mounted relative to one another by means of at least one rotary bearing (2 or 3). One part is in the form of processing container (1) having at least one feed orifice (9) and at least one outflow orifice (11). The other part (4) is arranged essentially concentrically with the first part (1) and with the axis of rotation (A). At least one of the two parts (1 or 4) is provided with shearing tools (7, 8) on the surfaces (12, 16) facing one another. The processing container (1) is essentially conical, the cone having its smaller end face on the side of the feed orifice (9).

Abstract: A mixer blade assembly is provided for medium and high viscosity liquid which does not cause the generation of an insufficiently mixed region of a doughnut-shaped configuration within the liquid to be mixed and therefore has excellent mixing performance. The mixer blade assembly for medium and high viscosity liquid includes a rotary shaft including at least two support posts spaced apart from each other; a plurality of plate-shaped inclined blades secured on each of the support posts and spaced apart from each other into multiple stages, the leading edge of each of the blades being displaced rearwardly or forwardly as viewed from the axis of blade rotation from the upper stage to the lower stage; and a bottom impeller secured on the support posts and being located in proximity with the bottom surface of the mixing vessel.

Abstract: A kneader mixer comprises at least two axial-parallel rotating shafts, each of the shafts having a plurality of kneading-transporting elements axially spaced on the shaft and separated from each other on the shaft by a tubular section.

Abstract: This invention relates to an apparatus and a method for hydrothermally processing a raw grain composition with steam in a conditioner as a preliminary step in the production of a pelletized feed product. More specifically, this invention is directed to an apparatus and a method for massing in-process grain composition in a chamber to enhance efficacy and efficiency of hydrothermal treatment and to improve the production rate and quality of pelletized feeds.

Abstract: A mixing tool 10 can be mounted within a drum 20. A mixing arm 12 of the ing tool 10 can be held by a shaft borne in a rotatable fashion. A mixing body 11 is mounted to the mixing arm 12 and directed towards the inner surface of the drum. One or more rods 13 are introduced onto the outer surface 14 of the mixing body 11 and have a prominent mixing edge 18. A mixing tool of simple construction is developed with which nearly all mixable bulk products and/or product mixtures can be processed without leading to the formation of product deposits in the region between the inner surface of the drum and the mixing body 11.

Abstract: In the case of a mixing and kneading apparatus for the, in particular, thermal treatment of products in the liquid, pasty and/or pulverulent state, with or without the supply and discharge of gases and vapors, in a housing (1), a shaft (2) rotating in said housing and having disk segments (3) or similar disc-like elements arranged on it, which segments or elements interact with mating kneading elements (7) fixed on the housing, the intention is to form, between the mating kneading elements (7), and between the mating kneading elements and the disk segments, an open space (12) in which a mixing arm (14) engages from the shaft (2). In this case, mixing arms (14) of different configurations engage in the open space (toric space 12) from the shaft (2).

Abstract: A toner cartridge including a container having a toner discharge port, a toner contained in the container and a stirrer for stirring the toner existing in the container. The stirrer includes a rotary shaft rotatably mounted between both side walls of the container, not less than two arms extending in the radial direction, from the rotary shaft at fixed intervals in the axial direction and not less than one paddle disposed between the ends of the arms. Each paddle has a plate piece made of a synthetic resin film extending in a direction to separate away from the rotary shaft. The plate piece has one or more holes formed therein.

Abstract: An apparatus for processing dispersions of solids in a fatty phase has at least two parts (1, 4) which can be driven with the aid of at least one drive and caused to rotate relative to one another, form a processing gap (6, g1, g2, g1', g2') between one another and are mounted relative to one another by means of at least one rotary bearing (2 or 3). One part is in the form of processing container (1) having at least one feed orifice (9) and at least one outflow orifice (11). The other part (4) is arranged essentially concentrically with the first part (1) and with the axis of rotation (A). At least one of the two parts (1 or 4) is provided with shearing tools (7, 8) on the surfaces (12, 16) facing one another. The processing container (1) is essentially conical, the cone having its smaller end face on the side of the feed orifice (9).

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: A stirrer for machines for making ice cream includes a section of a rotary drive shaft, a first hub supporting a plurality of angularly equidistant radial spokes integral with the drive shaft section and a second hub supporting the same number of spokes as the first hub. The spokes of the second hub are provided at their ends with fastening components. The first hub contains radial passages that extend from a position diametrically opposite the spokes and through a longitudinal axis of the spokes to accommodate screw-type fastening members. The stirrer further includes a plurality of stirrer blades which have, at their axial ends, tapped holes for engaging the fastening members and fastening components to operatively connect the first and second hubs.

Abstract: A mixing machine including a machine base, a horizontal suspension arm horizontally suspending above the machine base, a lifting mechanism controlled to move the horizontal suspension arm vertically relative to the machine base, a transmission mechanism mounted on the horizontal suspension arm, a mixing container suspended from the horizontal suspension arm, a mixing blade unit suspending in the mixing container and driven by the transmission mechanism to mix material in the mixing container, wherein: the transmission mechanism includes a horizontal motor and a vertical motor respectively mounted on the horizontal suspension arm, a vertical center spindle coupled to the vertical motor, a horizontal transmission shaft coupled to the horizontal motor, a first sleeve mounted around the vertical center spindle and turned by the horizontal transmission shaft, a second sleeve mounted around the first sleeve and turned by the horizontal transmission shaft in one direction reversed to the first sleeve; the mixing bla

Abstract: The present invention discloses a mixing kettle which utilizes magnetic force to maintain contact between the scraper blades and the interior surface of the kettle. A series of scraper blades are pivotally mounted within pivot brackets carried on horizontal, anchor type scrape-surface agitators. A first magnet is imbedded within each scraper blade, fabricated from nylon or other similar material, while a second magnet of like polarity is carried within the pivot bracket adjacent the first magnet. The repulsive force between the magnets forces the blade to pivot such that the scraper end of the blade is forced against and rides along the interior of the kettle.

Abstract: A mixing instrument for the treatment of solids or individual solid components is attached to a shaft concentrically arranged in a horizontally positioned container. The shaft is mounted in the container in a rotatable fashion. A plurality of mixing instruments are arranged at axial separations on the shaft. The mixing instruments are directed radially towards the inner wall of the container and end at a short separation from the inner wall of the container. The mixing instrument exhibits a first mixing element and a second mixing element which are arranged via an arm behind each other in the direction of rotation. Facing the inner wall of the container, the mixing elements are configured with openings. The openings of the first mixing element are displaced with respect to the openings of the second mixing element. As viewed from the front, the projections of the first mixing element cover the openings of the second mixing element.

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: 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: Stirring device for machines for the manufacture of ice-cream, of the type with a whipping cylinder (1) with a horizontal axis, provided with a device for extraction of the ice-cream at one head side. The stirrer consists of two stirring blades (7) of helical shape which are arranged diametrically opposite one another and extend over the entire length of the whipping cylinder at a slight distance from the internal wall of same. The stirring blades (7) are supported on a hub (8) which is integral with the operating shaft (9), while there is provided between the two stirring blades (7) a plurality of scraping vanes (11) which are capable of interacting with the internal wall of the whipping cylinder.

Abstract: A method of facilitating the discharge of high consistency pulp from a pulp containing space such as a mass towe or the like and for treating pulp therein, includes a rotor (10) arranged in a high consistency pulp containing space (2) for breaking up pulp planks (7) and for homogenizing the pulp thereby facilitating the flow thereof toward the impeller of a pump (5).

Abstract: A mixer tool (8) for an ice-cream maker is provided which is insertable centrally into a cylindrical container (1) of the ice-cream maker and is operable there in rotation and which has at least one scraper (12, 13) projecting from a central shaft (6) and acting with the walls of cold cartridge 3 through its scraper edges (16, 17) and which also has at least one stirrer (14, 15) projecting from a central shaft (6), effective at least in the vicinity of the container wall (7), the stirrer effecting in the container flow at least directed from bottom to top of an ice-cream mixture filled into the latter. The stirrer also has at its free upper end close to the container wall a knife-shaped scraper (20, 21) projecting over the stirrer and acting together with the container wall to prevent formation of ice cream deposits above the stirrer.

Abstract: An agglomeration device having a rigid cylindrical casing in which a shaft rotates having outer end portions of reduced diameter. The larger diameter portion of the shaft has relatively small rotating rings at the ends thereof which rotate in notched out cavities of plastic rings which are stationarily fixed to end plates of the agglomeration device. Triple labyrinth seals surround end portions of reduced diameter of the rotating shaft.

Abstract: The invention relates to a multi-spindle kneading mixer with at least two axis-parallel agitator shafts engaging into one another, one of which is designed as a disk shaft, into which kneading elements of a kneading shaft engage, wherein these kneading elements scrape the product off from the disk surfaces and press it by means of corresponding diverting surfaces into a kneading gap formed on the one hand by the kneading element and on the other hand by the opposite disk surface, the product being moved axially to and from between the disk surfaces.

Abstract: A multi-spindle kneading mixer with at least two intermeshing shafts, one of which is equipped with disk elements which are cleaned by a second agitator shaft,with intensive full mixing and kneading taking place at the same time, characterized in that fixed kneading counterelements are inserted in the housing for the purpose of an approximately complete cleaning of the two agitator shafts.

Abstract: A stirring device having a casing for forming a stirring chamber, a driving rotary shaft disposed in the casing, a plurality of stirring paddles fitted on the rotary shaft as being dispersed axially of the shaft and a plurality of projections attached to an interior wall surface of the casing. The projections are provided adjacent each other at least one in number on each operational track of a leading edge of the paddle so as to remove excess substance adhered to the paddle thereby preventing frictional wear of the casing by the substance. Also, because of an interspace provided between an axially adjacent pair of projections, the projections do not obstruct the stirring operation of the device.

Abstract: An agglomeration device having a driven shaft and a plurality of pins extending radially outwardly thereof of such length as to sweep closely to the inner surface of the casing of the device. The improvement therein is a layer of high density plastic material attached to the inner surface of the casing and the provision of a ceramic sleeve in the end portion of the pins of extremely hard material such as tungsten carbide, silicon carbide, alumina or boron carbide.

Abstract: A mixing machine for dispersing finely divided solid particles in a liquid vehicle including a pair of coaxially extending shafts, one shaft being longer than the other, an impeller disposed at the end of the longer shaft, and an impeller assembly connected to the shorter shaft, the impeller disposed on the longer shaft being a high speed impeller and the impeller assembly connected to the shorter shaft being a low speed impeller assembly. The low speed impeller assembly is constructed with a plurality of laterally extending arms attached to the shorter shaft and a plurality of vertically extending rods connected to the outer ends of laterally extending arms. The rods in turn each carry one of the blades or vanes of the low speed impeller. This construction allows the bearing and seal arrangement disposed between the low and high speed shafts to be at a point along the shafts where it will be substantially out of contact with product being processed.

Abstract: A counterflow washer and cooler for processing cottage cheese curd and whey material comprising a horizontal housing, and a material and fluid blender rotatable mounted in the housing. The blender includes a rotatable shaft having at least one material lifting and conveying assembly rigidly mounted thereon having a material supporting surface and a guiding and conveying wall for moving material longitudinally through the housing in counterflow to the direction of flow of a washing and cooling fluid passing through the housing.

Abstract: A kneader-mixer performs mechanical, thermal and/or chemical processes with products which are in the liquid, viscous-pasty and/or free flowing state and includes an elongated hollow casing having an axis of elongation and having axially separated product inlet and product outlet ports. The casing has an inner wall. A kneading shaft in the casing is aligned with the axis and is rotatable thereabout. A plurality of kneading arms secured to the shaft extend radially outward therefrom in the casing. The arms are spaced axially along the shaft. A plurality of flat disc elements are disposed in the casing and lie in spaced parallel planes disposed at right angles to the shaft. Each element defines a circular sector spaced from the shaft and is secured to the inner wall of the casing. Each element is disposed adjacent a kneading arm which cleans the adjacent surface of the element as the shaft rotates.

Abstract: Kneader-mixers for mechanical and thermal treatment of products in different state forms, comprising a heatable cylindrical casing and a kneader shaft with heatable disk elements revolving therein and on which are arranged kneading blades scraping the inner wall of the casing. During mixing, these stirring elements cooperate with the hook-like kneading counterelments cleaning the stirrer surfaces and fixed in the casing. In each counterelement an arm forms a kneading gap with the casing wall, while second and third arms clean the disks and shaft. Each radial scraper for each disk element has at least two separate scraping edges, which subdivide the product into two product flows and through the inclined position of the kneading counterelements the scraped product acquires a powerful axial and radial transport component.

Abstract: A fermentation unit comprising a scoop wheel equipped with scoops on the periphery thereof, and which moves between bunker silos. The bunker silos are equipped with aeration ducts at the base thereof. Flexible scrapers located around the periphery of the scoop wheel scrape the aeration ducts. Unstacking barbs are also located on the periphery of the scoop wheel. Means are provided to adapt the unit to the type of materials to be treated.

Abstract: A mixing and kneading apparatus with a kneading shaft bearingly supported in a cylindrical housing, a plurality of disk elements mounted perpendicularly and axially spaced apart on the kneading shaft. The disk elements carry scraper edges arranged essentially transversely to the plane of the disk elements and facing the housing wall at a slight distance. The housing wall, the kneading shaft, and the disk elements are optionally heatable or and coolable. In order to obtain an intensive intermixing and a uniform retention time of all of the product particle present in the toroidal reaction space, at least one mixer arm connected to the housing or the kneading shaft projects into the toroidal space to a distance at least in the vicinity of the axial and radial center of the toroidal cross section between two axially adjacent disk elements. The mixing arm applies a mixing and/or transport action onto the goods or products present between the inner wall of the housing and the kneading shaft.

Abstract: A feed mixer includes a main chamber in which a rotor is located. The rotor includes at least one elongated wiper rigidly connected to a rotor bar for wiping contact with a curved wall portion of the chamber. The rotor bar is prevented from incurring any substantial pivotal movement and thereby maintains a substantially consistent and uniform angle between the wiper and the curved wall portion and wiping contact therewith. The rotor also includes a square in cross section axial center tube to which the rotor arms are connected and a circular in cross section axial drive shaft is positioned in the tube and extends the substantial length thereof. Right angle elements are positioned around the periphery of the shaft matingly engaging the inside right angle corners of the tube to lock the shaft to the tube for rotational movement therewith.

Abstract: Apparatus for compacting powdered and fibrous raw materials to a pellet product, comprising a mixing chamber with an inlet, a driven mixing shaft coaxially with respect to the mixing cylinder and which is provided with radially projecting blades. A pelletizer is connected directly to the mixing cylinder, and comprises a cylindrical mold coaxially inside a cylindrical jacket part and provided with radial holes, and inside which are arranged one or more freely rotatable pressure rollers as a result of which, when the apparatus is working, the compacted mixture is pressed through the holes, while the jacket part of the pelletizer is provided with an outlet for the compressed product. The mixing shaft is designed as a cylinder, rotatable coaxially with respect to a fixed supporting shaft.

Abstract: A rotor for a particulate material blender which form an outer tub or housing having at least a part cylindrical wall, and which is used for blending or mixing materials that are particulate using a plurality of arms moving paddles at their outer ends with adjustable, flexible wiper blades which engage the part cylindrical wall. The blender can be used for uniformly distributing materials that have different particle sizes, or for mixing two or more different materials together. The unit is particularly suitable for blending inorganic fertilizer materials quickly and efficiently.

Abstract: A granulating apparatus particularly adapted for advanced ceramic materials having a granulation vessel with a cylindrical main body in which are coaxially-mounted rotatably an annular cage-like stirring rotor having peripheral stirring blades and a central impulse rotor having impulse blades and pins. The stirring blades are mounted in diverging pairs relative to their rotational direction to channel charge material axially centrally within the container, while the impulse blades are V-shaped convergingly in their rotational direction to impel charge material both radially and axially outwardly within the vessel, for enhanced charge material circulation. Nozzles mounted on the end cover of the vessel inject agglomerating liquid axially into the open granulation area between the rotors for direct impingement of liquid essentially only onto the charge material.

Abstract: A kneading machine comprises a cylindrical container with a supply opening and a discharge opening, a rotational shaft disposed on the axis of the container, and a plurality of blades on the shaft. Each blade comprises a pair of side plates and a kneading blade. The kneading blade is formed with a roll-in angle, and in the case of a batch-type kneading machine, both side plates are disposed at a feed angle to effect axially reciprocating movement of material for more efficient kneading. In the case of a continuous process kneading machine, the supply and discharge are axially displaced, and some of the blades comprise side plates perpendicular to the rotation axis, while other blades have an angled side plate for effecting gradual axial feed of material from supply to discharge. The blades are replaceable on the shaft. The rate of feed, and therefore the speed at which kneading takes place, can be adjusted by selecting appropriate numbers and positions for the blades with angled side plates.