Abstract: A mixer for combining food constituents into a homogeneous mass includes an eccentric drive mounted on a mixing head of the mixer, where the eccentric drive is configured to rotate around a central axis of a mixing area and rotate an offset rotational axis of a drive shaft in an orbit about the central axis of the mixing area. An angled beater attachment for the mixer further includes a top mounting portion operably coupled to the drive shaft of the stand mixer, a bottom beater portion disposed above the mixing area, and a beater support member operably coupled with a support shaft of the bottom beater portion. The bottom beater portion is driven by the drive shaft about an angled rotational axis that extends at an acute angle relative to the central axis of the mixing area.

Abstract: A slurrying device includes a slurrying tank and a rotor stirrer. The rotor stirrer includes a stirring drum, a transmission gear arranged at an end face of the stirring drum configured to face the slurrying tank, and a rotor stirring rod configured to extend from the stirring drum and into the slurrying tank to stir a slurrying liquid in the slurrying tank. The rotor stirring rod is meshed with the transmission gear and configured to revolve along a planar trajectory of the transmission gear while simultaneously rotating. The rotor stirrer further includes a driving device provided at the stirring drum and configured to drive the rotor stirring rod to rotate via the transmission gear.

Abstract: The invention provides a multifunctional food processor, belonging to the technical field of kitchen equipment. The multifunctional food processor includes a container (1), a top cover (3) and a drive component, wherein, a first working chamber (11) is arranged in the container (1), and a second working chamber (31) is arranged in the top cover (3); the top cover (3) is arranged on the container (1) in a matching manner, and the drive component includes a drive rod which downwardly extends from the top cover (3) and is provided with a food processing device in a matching manner. The food processing device is a stirring device (7) or a cutting device (8) mounted in the container, and is used for not only stirring food but also shredding food.

Abstract: Provided is a highly efficient pipe-type flocculation mixer, comprising: a feeding pipe, a mixing pipe, a discharging pipe and a mixer. The feeding pipe, the mixing pipe and the discharging pipe are disposed in parallel and sequentially communicated. The mixing pipe is a circular pipe and has two blind ends. The mixer comprises a driving motor, a mixing blade and a central shaft. One end of the central shaft is coupled to the driving motor, and another end of the central shaft is coupled to the mixing blade. The size of the mixing blade enables the mixing pipe to exactly accommodate the mixing blade. Also provided is a feeding-mixing device, wherein an agent can be introduced into a hollow central shaft via an agent feeding chamber, and be sprayed out from the central shaft into a mixing chamber; said agent feeding manner enables sufficient mixing.

Abstract: The disclosure discloses a bevel planetary gear mechanism applied to a stand mixer, including a center bevel gear (2), a first bevel planetary gear (10), a second bevel planetary gear (3), a third bevel planetary gear (4), an internal bevel gear (5) and a bevel planetary gear bracket (11), wherein, the center bevel gear (2) is mounted on a spindle (1); the first bevel planetary gear (10), the second bevel planetary gear (3) and the third bevel planetary gear (4) are all engaged with the center bevel gear (2); the internal bevel gear (5) surrounds the first bevel planetary gear (10), the second bevel planetary gear (3) and the third bevel planetary gear (4) and are engaged with such three gears. By using the bevel planetary gear mechanism provided by the disclosure, the stand mixer has a pitched kneading hook, thereby improving the kneading effect of the stand mixer.

Abstract: The invention relates to a mixing and conveying system for dry mortar materials. The dry mortar materials can be obtained from a storage silo (1) through an openable closure panel (3). A pipe (17), in which a drivable screw conveyor (4) is mounted, is arranged under the closure panel (3). The pipe (17) leads into a mixing and buffer container (18), in which a coil (20) is rotatably mounted on a central axis (19). The mixing and buffer container (18) has a volume which equals at least 1.5-times the minute capacity of the pump-screw conveyor (14). It is thus ensured that the dry mortar material is mixed therein with the added water for at least 90 seconds or longer. The mixing and buffer container (18) leads into a pipe (15) at the bottom having a pump-screw conveyor (14) which conveys the mixed mortar into a hose (5). The pump-screw conveyor (14) can be allowed to run backward. The coil (20) runs continually such that the mortar is constantly agitated to prevent setting.

Abstract: A stirring wand is configured for selective engagement with a mixing device. The stirring wand comprises a substantially vertical portion having an upper end and a lower end, a first tapered surface that includes a first pitch angle proximate the upper end of the substantially vertical portion and a second pitch angle proximate the lower end of the substantially vertical portion, a substantially horizontal portion having a base and a distal tip, and a second tapered surface extending from the base to the distal tip. The second tapered surface includes a third pitch angle proximate the base and a fourth pitch angle proximate the tip.

Abstract: A tool that is attachable to an electrically driven stand mixer and configured, when suspended into a bowl and driven in planetary motion by the stand mixer, to perform a mixing operation that involves folding ingredients together without substantial expulsion of air from the mix. The device aims to automate the folding action by providing a food mixing arrangement in which a tool having a wing-like volute blade is suspended by its shaft from a drive outlet of the stand mixer and executes a planetary motion within a mixing bowl. The blade is twisted along its length and has curved surfaces formed to gently lift and turn ingredients to be mixed in the bowl so as to simulate a gentle folding action similar to that achieved manually by an experienced cook.

Abstract: The patent application relates to a kneading dough hook assembly and the kneading dough machine containing the same. The kneading dough hook assembly includes a mounting frame, a first kneading dough hook, a second kneading dough hook, a first fool-proof mechanism and a second fool-proof mechanism. The mounting frame includes two mounting rods. The first and second kneading dough hooks are mounted on the two mounting rods respectively. The first fool-proof mechanism is provided between the first kneading dough hook and its corresponding first mounting rod. The second fool-proof mechanism is provided between the second kneading dough hook and its corresponding second mounting rod.

Abstract: Ledger mechanism for rod making machines of tobacco industry comprising a first stationary ring gear (4), a first orbiting gear (5) staying in mesh with the first stationary ring gear (4), a second movable ring gear (6), a second orbiting gear (7) staying in mesh with the second movable ring gear (6). The ledger mechanism comprises a ledger (11) mechanically connected with the second movable ring gear (6) and the axis of the second orbiting gear (7) is coaxial with the axis of the first orbiting gear (5).

Abstract: A food blending appliance includes a housing with a motor therein. A food blending chamber having an inner wall surface is located proximate the housing. A wiper assembly is operably coupled to the motor and has a wiper blade that includes a tapered forward portion and a tapered rearward portion. The wiper blade includes an arced exterior surface that includes a radius of curvature that is substantially the same as a radius of curvature of the inner wall surface. The operable coupling between the motor and the wiper assembly can be accomplished by a magnetic drive member in the housing and a magnetic blade member in the wiper assembly. The operable coupling between the motor and the wiper assembly results in rotation of the wiper blade when the motor is activated, which removes food from the inner wall surface of the food blending chamber during rotation.

Abstract: The invention is directed to a self-stirring cooking pot lid, featuring a plurality of electric stirring elements.

Abstract: A planetary mixer includes frame-shaped blades configured to undergo planetary motion within a tank having a generally cylindrical inner surface and a plate-shaped bottom surface including corners formed with a curved face throughout an entire circumference of the bottom surface. Each of the blades has a vertical side portion extending along the inner surface of the tank and a bottom side portion extending along the bottom surface of the tank and connected at generally right angles to lower ends of the vertical side portion to form blade corners each formed with a curved face.

Abstract: A planetary mixer has stirring blades that undergo planetary motion within a tank in close proximity to an inner wall of the tank for stirring solid/liquid type treatment materials received by the tank. Each of the stirring blades includes a vertical side portion having two slope faces slanting toward the inner wall of the tank, an edge face connecting outward front ends of the slope faces, and an inner face connecting inward front ends of the slope faces. The outward front ends are disposed closer to the tank inner wall than are the inward front ends, with a distance between the inward front ends being greater than a distance between the outward front ends. The inner face is formed in the shape of an arc having a center located at an intersection of a line interconnecting the inward front ends and centerline running through a center of the edge face.

Abstract: A reactor vessel including: a mixing chamber having a vertical length, an upper inlet, and a lower outlet; and a vertically oriented paddle within the mixing chamber and having a cross-sectional shape of a hydrofoil, wherein the paddle moves with respect to the mixing chamber.

Abstract: Beater assembly for mixing ingredients in the bowl of a stand mixer with planetary drive, the assembly (10) including upright arm members (12, 14) which repeatedly approach and pass close to the walls of the bowl in accordance with the motion imparted by the planetary drive. The arm members are provided with flexible wiping or scraping blades (22) which are capable of adapting themselves to fully conform to the bowl surface, each arm member (12, 14) is grooved (24) along its length and each blade (22) is formed of a length-wise resilient elastomer configured for mounting in the groove. The blades are formed at each end with fasteners (34, 36) and are held in position, under length-wise tension, by interlocking the fasteners with anchoring devices (38, 40) located near the ends of the arm members.

Abstract: An embodiment of the present invention is directed to a stand mixer including a base with an upstanding pedestal portion and a mixer head supported on the pedestal portion, the mixer head having a upward-facing side, a downward-facing side and an aperture passing through the mixer head from the upward-facing side to the downward-facing side.

Abstract: A kneading and granulating machine comprises: a container containing a material to be kneaded; a kneading member, which moves along the inner wall surface of the container and revolves and spins at the same time within the container; and a crushing blade, which revolves and spins at the same time within the container to shear the material to be kneaded in the container. The kneading member comprises a blade having a shape corresponding to the inner wall surface of the container, which enables kneading the material to be kneaded between itself and the inner wall surface of the container.

Abstract: A mixing apparatus comprising: a) a mixing well characterized by an internal volume not exceeding 100 ml.; b) a drive mechanism including a stationary circumferential gear on an inner surface of the mixing well; and c) a planetary mixing element driven by a mixing element gear which engages the stationary circumferential gear.

Abstract: A mixing apparatus comprising: a) a mixing well characterized by an internal volume not exceeding 100 ml; b) a drive mechanism including a stationary circumferential gear on an inner surface of the mixing well; and c) a planetary mixing element driven by a mixing element gear which engages the stationary circumferential gear.

Abstract: A beater assembly (100) arranged to be used in a receptacle (200) comprises a drive shaft (101) having a distal end (102) that can be coupled to a driving member. The drive shaft (101) defines a longitudinal axis (A-A) about which the beater assembly (100) is rotatingly drivable. A first member (104) is coupled to the drive shaft (101) and comprises an arm section (104a) that extends away from the drive shaft (101). A second member (107) is coupled to the drive shaft (101) distanced from the first member (104). The second member (107) comprises an arm section (107a) that extends away from the drive shaft (101). A beater member (105) is provided that has a first distal end (105a) that is coupled to the arm section (104a) of the first member (104). The beater member (105) extends between the arm section (104a) of the first member (104) and the arm section (107a) of the second member (107). During use the arm section (107a) is near the bottom of the receptacle (200).

Abstract: A mixing system comprising a bowl, mixing element and motor. A mixing element is located within the bowl and is driven by a motor to impart mechanical energy to the foodstuff being mixed upon contact. A method for increasing the power to the motor comprises introducing additional current in advance of instantaneous loading.

Abstract: The invention relates to a device (1) for producing chocolate by mixing and grinding ingredients, such as cacao mass, cacao butter, sugar and/or milk powder, comprising a mixer (3), a grinder (4), and means for passing the mixture from the mixer (3) to the grinder (4). The mixer (3) comprises a toroidal, preferably annular vessel (6) for receiving and mixing the ingredients.

Abstract: A process for the production of a polysiloxane containing mass incorporating surface treated filler materials comprising feeding materials to a change can mixer in which the materials are mixed; the change can mixer comprising a detachable mixing head assembly containing least two spiral mixing arms extending downwardly into the can of the change can mixer, drive means for rotating the spiral mixing arms around their own axis, and drive means for rotating the spiral mixing arms as a unit around the axis of the can and wherein the geometry of the mixing arms is such that they generate downwardly directing motion on the composition being mixed.

Abstract: A mixing machine includes a head extending over a bowl receiving location. The head includes a shaft receiving opening extending upwardly therein and a rotatable mixing shaft having a lower portion extending below the head and an upper portion within the shaft receiving opening. An upwardly facing bearing shoulder is within the shaft receiving opening. An upper bearing member is disposed within the shaft receiving opening and about the mixing shaft. The upper bearing member is supported by the upwardly facing bearing shoulder. A gear system is in the head for effecting planetary movement of the mixing shaft. The gear system includes a gear member disposed about an upper end of the mixing shaft and linked to the upper end of the mixing shaft for effecting rotation of the mixing shaft. The gear member is supported by an upper side of the upper bearing member and the shaft is supported by the gear member.

Abstract: Mixing machine of the type comprising a container (10), inside which aggregates and binding fluids are introduced in order to form stone mixes, and at least one motor-driven mixing unit (30; 130A, 130B), the axis (Y; Y1, Y2) of which is parallel to and at a distance from the central axis (X) of the container (10). In order to introduce the binding fluids into the container (10), the machine comprises a dispensing unit (50; 150) which rotates in synchronism with the mixing unit (30; 130A, 130B), remaining always angularly at a distance therefrom.

Abstract: The apparatus includes a housing having a centrally disposed longitudinal axis situated along a horizontal plane during operating conditions. The housing further has a monolithically formed flange portion extending orthogonally therefrom. The flange portion has a plurality of slots formed therein. A plurality of coextensive and independently pivotal leg members directly conjoined to the housing and the flange portion in such a manner that the apparatus can conveniently be supported at an elevated position above a ground surface during operating conditions. A rectilinear bracket has opposed end portions pivotally and directly connected to the flange portion and one of the leg members respectively. A mechanism is included for agitating a tissue valve in a saline solution.

Abstract: A mixing apparatus comprising: a) a mixing well characterized by an internal volume not exceeding 100 ml.; b) a drive mechanism including a stationary circumferential gear on an inner surface of the mixing well; and c) a planetary mixing element driven by a mixing element gear which engages the stationary circumferential gear.

Abstract: A mixing machine includes a removable head cover that may be formed of plastic and that may include a nose portion that is disposed about a power take off the mixing machine.

Abstract: An electric hand mixer comprises a housing and a motor mounted with the housing. A gearbox is mounted with the housing and coupled with an output shaft of the motor. A pair of spindles having respective axes are positioned about a shared axis. The spindles are coupled with the gearbox for rotation about the respective axes and rotation about said third axis.

Abstract: The apparatus is a mixing and dispensing device for orthopaedic bone cement, comprising an introducer funnel and a mixing syringe body. A mixing shaft and paddle arrangement extends through the funnel and mixing chamber, the paddle having a profile matching the shape of the funnel, in the introducer funnel.

Abstract: An electric hand mixer comprises a housing and a motor mounted with the housing. A gearbox is mounted with the housing and coupled with an output shaft of the motor. A pair of spindles having respective axes are positioned about a shared axis. The spindles are coupled with the gearbox for rotation about the respective axes and rotation about said third axis.

Abstract: A stirrer for a planetary mixer has an upper central hub with two outwardly extending horizontal arms and two helical stirring elements, one depending from each arm. According to the presently preferred embodiments, the cross sectional area of the stirring elements is large enough that no bottom crossbar is necessary. The pitch angle of each stirring element is preferably constant from top to bottom. The leading side of the stirring elements has a flat surface whereas the trailing side is curved. The flat surface increases in size moving toward the bottom of the stirring element.

Abstract: The apparatus is a mixing and dispensing device for orthopaedic bone cement, comprising an introducer funnel (1) and a mixing syringe body (25). A mixing shaft (4) and paddle (3) arrangement extends through the funnel (1) and mixing (2) chamber, the paddle (3) having a profile matching the shape of the funnel (1), in the introducer funnel (1).

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: A domestic kitchen appliance (1) comprises a container (2) with a central axis (3), a transmission frame (4) positionable on the container (2) and carries a drive element (5), a carrier element (6) which is rotatably journaled relative to the frame (4) about the central axis (3), and at least two coupling elements (7,8) which are rotatably journaled relative to the carrier element (6) about individual axes of rotation (17, 18), a transmission unit (9) carried by the transmission frame (4) for transmitting a rotation of the drive element (5) to a rotation of the carrier element (6) about the central axis (3) and rotations of the coupling elements (7, 8) about their axes of rotation (17, 18), a drive unit (10) for driving the drive element (5), and at least two tools (27, 28) couplable to the coupling elements (7, 8). In the domestic kitchen appliance (1) in its assembled condition, the coupling elements (7, 8) are positioned on the carrier element (6) at different distances (a, b) from the central axis (3).

Abstract: A mixer including a mixing vat (2), a mixer rotor (8) rotatable by a drive motor (6) around an essentially vertical axis of rotation (10) and a first mixing tool (14) mounted on the mixer rotor (8) so as to rotate around a first axis. Additionally located on the mixer rotor (8) is at least one further mixing tool (24), the mixing tools extending from above down into the mixing vat (2) or into the mixed substance. In order to optimize thorough mixing of the substances being mixed with minimum expense for construction, the mixer rotor (8) is provided with a set of gears (22) by which the first mixing tool (14) and a second rotatable mixing tool (18) are coupled such that the rotational speed of the second mixing tool (18) is greater than the rotational speed of the first mixing tool (14) by a predetermined factor.

Abstract: An apparatus and method for continuously reducing the viscosity of molten moldable polymeric material uses shear vibration under extensional flow to cause disentanglement. One or more station treatment cavities are defined by a gap composed of two closely separated surfaces in relative motion with each other at given speed and/or submitted to relative oscillations, with given frequency and amplitude to produce a shear deformation on the molten moldable material and a controlled variation of the gap dimension. The surface have a contour profile of ribs and/or bumps and/or grooves over which the molten moldable material can flow and/or can be dragged and/or is being pushed through and/or pumped through. The treatment cavities have an inlet through which the molten moldable material can pass into, and an outlet through which it can exit each treatment cavity.

Abstract: A device for kneading doughs and pastes consisting of a type of flour, a liquid such as water and other appropriate additives, which device consists substantially of a horizontal lying elongated trough provided with a curved bottom having standing side walls connecting thereto, and a rotatably driven mixing and kneading gear operating in the trough, wherein the mixing and kneading gear consists of at least two tubes or rods which are driven around the center line of the trough bottom and received in rotatable supports on either end of the trough, wherein the diameters of the rotating tubes or rods are practically identical and the circumscribed circle lies a short distance from the trough bottom, such that many types of dough mass can be made and the mixing and kneading gear is easy to clean.

Abstract: The present invention provides production methods for aqueous dispersion slurry of inorganic particles which are so stable as not to increase in viscosity, gel or sediment even if stored for a long time and whose average particle diameter is 0.01 to 2 .mu.m. As such production method, 2 production methods are available:A production method (A) having a preliminary dispersion process in which the inorganic particles are added to ad dispersed in an aqueous medium and a main dispersion process in which dispersed slurry out of the preliminary dispersion process are collided with each other under a pressure of 100 to 3,000 kg/cm.sup.2 ; andA production method (B) in which the inorganic particles are added to an aqueous medium within a kneading tank of a kneader in which mixing blades rotate around respective subsidiary spindles and the subsidiary spindles revolves around a spindle and dispersed at a solid concentration of 30 to 70 wt %.

Abstract: A food mixer having a planetary gear system. The mixer comprises a vertically extending stand housing an electric motor, a base to support the stand, an overhang arm connected to the stand, and a gear system housed in the overhang arm. The gear system includes a center shaft having a center gear mounted thereto, the center shaft being drivingly coupled to the motor and rotatable about its axis. The gear system further includes an agitator shaft having an agitator gear mounted on an end thereto, the agitator shaft being oriented generally parallel to the center shaft and located such that the agitator gear meshes with the center gear. The gear further includes a ring gear having a set of internal gear teeth, the ring gear encircling the center gear and the agitator gear whereby the agitator gear meshes with the ring gear.

Abstract: A foam-in-bag packaging system is disclosed that comprises a mixing device for mixing foam precursors in a bag of flexible plastic film material sealed on all four sides by respective edge seals and having a plurality of frangible seals therein defining three separate interior cells in the bag. Two of the cells separately contain a first and second foam precursor composition and the cells are located at one end of the bag. The remainder of the bag is vented for permitting gases to escape from the bag as the foam precursors form foam while preventing foam or foam precursors from escaping from the bag. The mixing device ruptures the frangible seals to form a single interior cell and mixes the first and second foam precursors.

Abstract: The dryer includes a double-walled casing, the inner wall of which defines a cylindrical drying chamber for receiving the products and the outer wall and the inner wall of which define between them an interspace for the circulation of a diathermic fluid. A shaft is mounted in the chamber and has a motor for rotating it about its own axis and at least one blade fixed to it which, on rotation of the shaft, can exert a mixing action on the product and can detach it from the inner wall of the casing. The shaft is mounted eccentrically of the longitudinal axis of the chamber and has a motor rotating it about the longitudinal axis of the chamber.

Abstract: A device for mixing or otherwise processing compositions at preselected temperatures, comprising a container for receiving the composition ingredients; a jacket member disposed about the container at a spaced distance therefrom so as to form a substantially sealed area therebetween; a unit for introducing fluid flow through the area defined by the relationship between the jacket member and the container; and wherein the jacket member includes a plurality of inlet ports disposed substantially evenly about an end portion of the jacket member for receiving the fluid which is introduced into the defined area, so as to maintain the container at a substantially uniform temperature.

Abstract: A dough hook for a planetary mixer, the use of which prolongs the life of mixer parts such as the shaft, gears and the hook itself and which is characterized in that the following points are located on common edge of the hook portion:______________________________________ Distance from Distance from Angle of Rotation (degrees) Centerline of Baseline of from a Fixed Point on said Hook Portion (in.) Hook Portion (in.) Hook Portion ______________________________________ 3.5 6.2 71.5 3.0 8.7 106 2.1 10.6 140 0 12.

Abstract: A device for mixing or otherwise processing compositions at preselected temperatures, comprising a container for receiving the composition ingredients; a jacket member disposed about the container at a spaced distance therefrom so as to form a substantially sealed area therebetween; a unit for introducing fluid flow through the area defined by the relationship between the jacket member and the container; a unit for selecting the temperature of the fluid introduced into the area; and wherein the jacket member includes a plurality of inlet ports disposed substantially evenly about an end portion of the jacket member for receiving the fluid which is introduced into the defined area, so as to maintain the container at a substantially uniform temperature.

Abstract: In a kneading machine for food products, the product to be kneaded is fed within an endless channel defined within a circular bowl. In the channel there are located helical kneading tools each rotating around a respective axis while all moving simultaneously along the endless channel. Within the channel there project walls, each obstructing the channel immediately behind a respective kneading tool, so that each kneading tool is contained within a kneading chamber separated from the remainder of the channel, this kneading chamber moving along this channel from a loading area for the product to be kneaded to an unloading area for the kneaded product. The machine receives a continuous elongated mass of product to be kneaded and discharges at its outlet a sequence of batches of kneaded product which form again a continuous elongated mass of dough.

Abstract: A bowl scraper for an industrial size mixer has a bar shaped mandrel with a horizontal section and a vertical section. The horizontal section has a quick connect/disconnect coupler affixed thereto. A gravity actuator/keeper locks the mandrel in place while the mixer is operating. The vertical section is shaped to complement the shape of the interior wall of the bowl. A rubber boot, which fits over the vertical section, is adapted to scrape the bowl regardless of the direction in which the mixer turns.

Abstract: An apparatus for mixing molding sand which comprises a mixing vessel having a mixing tool disposed within the mixing vessel, the mixing tool comprises an elongated shaft having a plurality of blades arranged along the elongated shaft wherein each of the plurality of blades comprises two opposed identical blade portions fitted to each other by a form fitting connection at a location adjacent the elongated shaft. The form fitting connection includes a groove and a lug on each of the opposed blade portions wherein the lug on one of the opposed blade portions engages the groove on the other opposed blade portion. The groove and lug form in part a peripheral surface of a polygonal recess on the form fitting connection which surface abuts the elongated shaft of the mixing tool when the opposed blade portions are secured to the shaft.

Abstract: An orthopaedic bone cement mixing device comprising a mixing bowl (1) and a lid (3), said lid (3) having a handle (4) extending outwardly therefrom. A mixing paddle (7) comprising a shaft (8) and vanes (9) extending outwardly therefrom extends into the bowl (1) from the lid (3) and is anchored in a groove (10) running around the base (2) of the bowl. A step-up gear mechanism (5, 11) is provided between the paddle (7) and the lid (3) such that, as the handle (4) is rotated the lid (3) rotates, causing the paddle (7) to rotate around the bowl (1). The drive wheel (5) of the gear mechanism is also caused to rotate and drives the driven wheel (11) which causes the shaft (8) of the paddle (7) to rotate about its own axis as the paddle (7) moves around the bowl (1).