Abstract: An apparatus for deagglomerating powder in a mixture of liquid and powder. This apparatus contains a mixing tank, an agitator disk disposed within the mixing tank, and a baffle. The agitator disc has a maximum dimension of from about 6 to about 40 inches. The disc contains a multiplicity of compound teeth radially and removably attached its perimeter. Each of the compound teeth is comprised of a substrate to which is attached a front plate which preferably consists of a ceramic material, such as tungsten carbide.

Abstract: A gas dispersion stirrer comprises a rotatable hollow shaft and at least one circular hollow stirring member disposed thereon wherein the cavity in the stirring member communicates with the hollow shaft. The stirring member has aeration apertures disposed in an outer peripheral portion thereof. The stirring member has flow-inducing blades for radially directing the liquid from the hollow shaft toward the aeration apertures. The gas dispersion stirrer effectively aerates liquids and achieves an improvement in mass transfer.

Abstract: An apparatus for deagglomerating powder in a mixture of liquid and powder which contains a mixing tank, an agitator disposed within the mixing tank, and a baffle. The agitator disk is circular, has an diameter of from about 6 to about 40 inches, and contains a multiplicity of compound teeth radially and removably attached to its perimeter. Each of the compound teeth is comprised of a substrate to which is attached a front plate, a top plate, and a bottom plate; each of these plates preferably consists of a ceramic material, such as tungsten carbide.

Abstract: An agitator for a clothes washer includes a base and a plurality of blades projecting generally radially outwardly along the base. Each blade, which is of generally S-shape as viewed in plan, includes first and second sides which are of mutually different inclinations with respect to vertical. The first side is of steeper inclination than the second side along a radially inner portion of the blade, and is of less steep inclination than the second side along a radially outer portion of the blade. As viewed in plan, each blade is generally convexly shaped along its radially inner portion and generally concavely shaped along its radially outer portion.

Abstract: The turbine agitator assembly including a reservoir for liquid, a rotor mounted in the reservoir and with a plurality of radially extending blades, and sparger means for introducing a fluid into liquid in the reservoir. The fluid sparger means and the rotor are so constructed and arranged that, in use, the rotor blades (submerged in the liquid) and/or the liquid flow they generate disperse the sparged fluid. Each of the blades is hollow and has a discontinuous leading edge, only a single trailing edge along an acute angle, no external concave surface and an open radially outer end.

Abstract: A continuous mixing device for mixing continuously powder, comprising a casing having a mixing chamber inside of the device, a rotary shaft included within said casing, a rotatable stirring blade axially supported with said rotary shaft, and a fixed blade fixed inside of said casing, wherein said stirring blades and fixed blades are provided in plural numbers. A process for producing a toner composition of developing electrostatic latent images, comprising introducing colored particles having at least a binder resin and a colorant, and a powdery additive into a continuous mixing device, said continuous mixing device comprising a casing having a mixing chamber inside of the device, a rotary shaft included within said casing, a rotatably stirring blade axially supported with said rotary shaft, and a fixed blade fixed inside of said casing, wherein said stirring blades and fixed blades are provided in plural numbers; and mixing the colored particles and the powdery additive to obtain a toner composition.

Abstract: A cooking machine comprising: a mixer body provided with a motor therein; a container placed on said mixer body; and an agitator with at least a discal portion provided in close proximity to the inner bottom surface of said container, said agitator being rotatably provided in said container substantially at the central portion of the bottom surface thereof in such a manner that the center axis of said discal portion is perpendicular to said bottom surface so as to agitate and whip a material charged into said container, and said discal portion being integrally provided with an indicator rod which protrudes upward from the center of the rotation of said discal portion and has a mark for indicating the height that the upper surface of the central portion of the whipped material is to reach when said material charged into said container has been whipped to said predetermined degree by the rotation of said agitator, which is suitable for whipping ice cream materials.

Abstract: A mixer includes an agitating means and a material scraping means in a spherical casing. A mixer further includes a cracking-dispersing means for an easily cohesive powder or an impalpable powder. If crushing of particles need be restricted to a moderate level, the mixer includes either one the above mixers as a mixer main body and an angle setting means for setting the tilt the mixer main body at a given angle.The above mixers may preferably be used for agitating and mixing a powdery or granular material of all kinds, particle sizes, and specific gravities ranging from an easily cohesive powder or an impalpable powder to particles with which it is preferable to restrict a crushing level.

Abstract: A method of treating a gold-bearing ore to render the gold component of the ore more amenable to standard cyanidation treatment in a reduced amount of time is disclosed. An aqueous slurry of the gold-bearing ore is introduced into at least one vessel. An oxidizing agent, such as chlorine gas, an alkali metal hypochlorite and an alkaline earth metal hypochlorite, is rapidly introduced into the vessel so that it intimately contacts the aqueous slurry. While the oxidizing agent is being introduced into the vessel, the slurry is agitated with agitating means including a plurality of impeller blades that provide high shear agitation and a large interfacial surface area between the oxidizing agent and the liquid phase of the slurry to enhance the mass transfer of the oxidizing agent so that it becomes substantially completely adsorbed by the aqueous slurry in about 5 to about 15 minutes.

Abstract: A pasteurizer for foodstuff mixtures comprises a tank with which are associated heating, cooling and mixture circulation means. The tank (11) is ellipsoidal in shape with a bodyshell (12) and a base (13), and the said mixture circulation means comprise an auger-type device (15) mounted adjacent to the base (13), which is in the form of a disc (16) and is slightly drawn so as to have a tapered circumferential edge (17). From the upper side of the disc (16) there extend tabs (18) which form respective mixture aspiration ports (19), while below the ports (19) there extend respective centrifugal blades (20), which move the aspirated mixture through the ports (19).

Abstract: A pitcher for grinding and mixing material therein including a pitcher body, a removable lid and a rotary and reciprocal shaft journaled in the lid and having an apertured grinding and mixing plate attached to one end of the shaft. The grinding and mixing plate includes a plurality of mixing holes, four equally spaced semicircular rim segments, and a set of grinding teeth located on the underside thereof facing a set of fixed grinding teeth located in a row on the bottom of the pitcher with the two sets of grinding teeth being mutually facing and interfitting. The mixer plate can be rotated to grind up frozen concentrate or reciprocated within the container to mix liquids therein. The holes in the aperture plate provide a mixing action in both the rotary and reciprocating modes of operation.

Abstract: The present invention is directed to a mixer for mixing at least two free-flowing, reactive or unreactive substances comprising(a) a casing having at least two inlets and at least one outlet,(b) a rotatable shaft extending through the casing,(c) at least one rotor disc attached to the shaft such that the rotor disc is perpendicular to the shaft,(d) at least one stator disc attached to the casing such that the stator disc is parallel to the rotor disc and has an opening such that shaft can pass through the stator disc,(e) optionally at least one running wheel attached to the shaft and containing openings such that when the shaft is rotating, the running wheel provides a pumping effect to the mixture passing through the mixer,(f) at least one inlet through the casing for introducing a first substance axially to the shaft and against the rotor disc and(g) at least one inlet for introducing a second substance against a rotor disc at a point which is radially outward from the introduction of the first substance.

Abstract: A whipping machine comprising: a mixer body provided with a motor therein; a container placed on said mixer body; and an agitator with at least a disc portion provided in close proximity to the inner bottom surface of said container, said agitator being rotatably provided in said container substantially at the central portion of the bottom surface thereof in such a manner that the center axis of said discal portion is perpendicular to said bottom surface so as to agitate and whip a material charged into said container, and said disc portion being integrally provided with an indicator rod which protrudes upward from the center of the rotation of said disc portion and has a mark for indicating the height that the upper surface of the central portion of the whipped material is to reach when said material charged into said container has been whipped to said predetermined degree by the rotation of said agitator, which is suitable for whipping ice cream materials.

Abstract: A rotary device for mixing viscous liquids within a container. A vertical rotary driven shaft is connected to a circular disc at its terminal end. Radial or tangential mixing vanes are connected to the top surface of the disc and a baffle plate or cover disc is located over the vanes to prevent vertical flow in the area of the vanes. A central flow passage is provided about the shaft. Fluid is driven laterally outwardly by the vanes and replacement fluid is pulled downwardly by a pumping action along the shaft and likewise driven laterally outwardly for mixing. A removable washer shaped flow restrictor is placed in the central flow passage, vertically supported by the inner ends of the vanes and held in place by the downward flow during rotation of the mixing device.

Abstract: A rotary mill to colloidalize a premixed mortar in a high energy manner so as to increase the degree of hydration comprising a hollow collector casing having a feed inlet to receive the premixed mortar and a discharge outlet for the mixed product, a pair of counterrotating members cooperatively forming a shear zone therebetween wherein the shear zone comprises an inlet region to receive the premixed mortar from the feed inlet, a convergency region to impart a high energy shear to the premixed mortar and an expanding discharge region to feed the premixed mortar to the discharge outlet, and a drive and drive train coupled to the counterrotating members to impart rotational movement thereto.

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: 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 blending apparatus has a rotor provided with louvers and mixing teeth. The louvers have openings which vary in size and act to convey materials being cut and blended through the disc. The mixing teeth extend from peripheral edges of the rotor. Adjacent teeth vary in angular extension from the edges and in direction of extension from the edges. One or more rotors may be mounted on one or more shafts to meet diverse mixing needs.

Abstract: This invention is directed to a mixing apparatus for mixing liquids and particulate solids which comprises an enclosed cylindrical housing with an inlet means and a liquid/solid outlet means coupled to said housing and a slinger disposed within said housing which comprises a flat disc with a plurality of circumferentially spaced vertical vanes and a cylindrical outer wall at the outer periphery of the cylindrical flat disc.

Abstract: A mixer for mixing fluid materials such as an adhesive resin and a catalyst as the materials flow from separate supply sources to a dispensing nozzle includes a disc like rotor having a plurality of balls of uniform diameter fixedly mounted in the rotor to project symmetrically from opposite sides of the rotor. The rotor is driven in rotation within a cylindrical chamber having walls providing small clearances for the rotor, the chamber having a fluid inlet and a fluid outlet in the opposed chamber end walls coaxial with the rotor. The balls are arranged in a pattern which thoroughly mixes the fluid while imposing a minimum restriction to the flow of fluid through the mixer.

Abstract: A drying machine for the heating and drying of wet, comminuted materials comprises a stationary housing with a rotary, hollow rotor (1) with the admission and conducting away of a heating medium, and where the rotor has a number of annular drying elements (2) with heating channels (3), and comprises a number of lifting elements (4) secured by welding along the circumference of the drying elements. The lifting elements are plate items which extend over at least two consecutive drying elements, and consist of a lifting part (8) and a deflection part (7).

Abstract: An apparatus is provided for the heat treatment of polyolefin resin particles. The apparatus is equipped with an autoclave in which the particles are heated and agitated in the presence of an aqueous medium and dispersing agent. The autoclave has a tilted bottom wall portion, over which an impeller, preferably, a turbine-type impeller is provided.

Abstract: A shaftless instrument achieves mixing by a rotor floating on a solution in association with an external magnet or magnetic field. The magnet is driven by a motor located outside of but in close proximity to said instrument. In one embodiment, a feed inlet is located in the vicinity of the lower portion of said instrument and communicates with the bottom interior of said instrument in the vicinity of the rotor location. During operation, a fluid feed supports said rotor a small distance above the instrument bottom and enables it to rotates above the fluid feed location.

Abstract: An apparatus is provided that is useful for effecting liquid-liquid extraction by contacting a first liquid medium with a substantially immiscible heavier second liquid medium. The apparatus includes either a single mixer-settler unit or two or more such mixer-settler units in series. Each mixer-settler unit includes a vertically extending settling tank. An elongated extraction column extends generally vertically upwardly through the settling tank bottom. The extraction column is open at its top with the top of the extraction column below the top of the settling tank. A mixer is provided in liquid communication with the extraction column for mixing the first and second liquid mediums together to form a dispersion of droplets of one of the liquid mediums in the other liquid medium and for pumping the liquid mediums through the apparatus. The dispersion flows from the mixer upwardly through the extraction column and out from its top into the settling tank.

Abstract: A domestic electrical appliance for food preparation has a generally cylindrical bowl and a vertical shaft rotatably mounted in this bowl. A beating/emulsifying tool of the invention is arranged to be mounted on the shaft. The tool comprises a disc arranged to extend near the bottom of the bowl and to be rotated by the vertical shaft. A series of radially directed projections are formed on one or both of the faces of the disc which can be used alone in the appliance for the preparation of emulsions such as mayonnaise. A cage can additionally be mounted in the bowl to cooperate with the disc for the effective beating of foodstuffs such as egg whites and cream.

Abstract: A homogenizer, with which the homogenization power is minimized while maintaining good homogenization, and with which at the same time the conveying power of the homogenizer is increased. This is achieved via a constant free cross-sectional area within the individual homogenizing stages, and by a hydrodynamically favorable design of the free space which surrounds the tools of the homogenizer. Baffle elements or a subsequently connected second pump stage can be provided.

Abstract: The invention involves equipment comprising what may be referred to as a cutting head cylinder or unit provided with discharge passages and adjacent cutting edges and an improved impeller rotatable in the unit for directing a product or material introduced into the head tangentially against the cutting edges for comminuting or reducing the size of the product for flow outwardly through the passages. More particularly, the impeller structure embodies improved principles of design and construction and method of its operation whereby the product is presented substantially uniformly or evenly to the cutting edges and over the inside surface throughout the length of the cutting head or cylinder in order to substantially alleviate any concentration of the product in any localized areas within the confines of the head.

Abstract: A mixer assembly including a container having a rotatable impeller therein and a motor base having a casing and a drive shaft in the casing adapted to be coupled to and drive the impeller in the container. The drive shaft in the casing extending through an opening in the casing and having a disk fixed to the shaft for rotation therewith. The disk being positioned above the opening in the casing and extending radially outwardly over the opening whereby liquid contacting the upper surface of the disk will be spun off as the disk rotates.

Abstract: An improved, self-cleaning, bidirectionally shiftable liquid contacting device is provided which serves to give enhanced aeration and mixing of liquids such as sewage water at a relatively low cost in terms of horsepower input. The device preferably includes a rotatable, flat, annular plate provided with oppositely projecting, circumferentially spaced, radially oriented rows of liquid-contacting elements strategically located and configured for maximum effectiveness. Each element is in the form of a flat-topped, solid body presenting a pair of elongated, opposed, inclined, converging, concave faces, with the axes of the respective concavities being transverse relative to one another. As the plate is rotated, the leading concave face gives excellent mixing and lateral liquid diversion, whereas at the trailing concave face, a suction action serves to draw air deeply into the liquid for subsequent release and aeration.

Abstract: An apparatus is provided for blending and emulsifying a dry product with a viscous product, the latter being disposed to a predetermined level within a tank. The tank is provided with a dry product inlet disposed above the level of the viscous product. The apparatus includes a power actuated rotary agitator immersed within the viscous product and, when rotating at a predetermined speed, causes the viscous product to form a vortex into which the dry product is fed through the tank inlet. The agitator is provided with first and second disc members arranged in spaced, substantially parallel relation. One of the disc members is provided with an enlarged central opening. The disc members are interconnected to one another by a plurality of symmetrically arranged baffles. The periphery of at least one of the disc members is provided with a plurality of symmetrically arranged shear blades.

Abstract: The present invention relates to a process and a device for the preparation of fine and uniform dispersions of a divided product in a liquid. A powder and a liquid are fed at a constant flow rate into the device at separate points, and are instantaneously and independently brought up to speed and then brought into contact with each other in a dynamic manner. The process is carried out by means of a turbine composed of at least two non-continuous parts which do not allow the products to return to the center of the turbine, two separate pipes, namely a feed pipe for the powder and a feed pipe for the liquid, and a discharge pipe for the dispersion. The invention applies particularly to liquids possessing a high solvating power with respect to the powders with which they are to be mixed.

Abstract: A solid circular plate mounted above the existing stirrer in a melt grid spinning apparatus provides a positive hold-up time for melting flake descending from the melt grid to the melt pump beneath the grid.

Abstract: A mixer for mixing a body of receiving liquid with solids, liquids or gases introduced therein. The mixer includes a rotatable shaft, a thin disk-like member mounted for rotation on the shaft, and at least one thin annular ring mounted on the disk-like member spaced from, parallel to and concentric with it. The flow of liquid perpendicular to the annular ring through the inner opening thereof, when the mixer is immersed and rotating in the body of receiving liquid, is unimpeded by any structural member. The annular ring may be mounted on either side of the disk, and a plurality of annular rings may be employed. The annular ring or rings may be mounted on the disk-like member by at least three elongated support posts spaced equally around the outer perimeter of the disk, the transverse cross-section of each post being curvilinear, preferably circular, in shape. The mixer is disclosed for use in a tank.

Abstract: Stirrer, comprising a spindle (1) provided with a drive, to which spindle a disc or plate (2) is affixed, cut into star-shape and extending perpendicular to the axis, to which, on one or both sides of said disc or plate a plurality of stirring blades (4) is affixed, lying substantially in radially directed axial planes and having the form of substantially right-angled triangles having the longer base directed radially and the shorter perpendicular, parallel to the axis, lying as the extreme edge at the greatest distance from the axis, where moreover the number of stirring blades on one disc side amounts to at least 8, the height (h) of the extreme blade edge is equal to 0.5 to 2 times the perpendicular distance (a) of the extreme end of one blade to the successive blade, and the length (L) of the blades, measured along their hypothenuse, amounts to at least twice the height (h) thereof.Preferably the number of blades on one disc side amounts to 12 or even 18.

Abstract: Apparatus for the continuous mixing and homogenization of powdered substances, such as powdered milk, with water or other beverages, comprises a hopper (1) with vibrating sieve (2) and a screw (3) situated at the base of the hopper and actuated with variable angular velocity by a motor (4). The powdered substance is transported by the screw to a nozzle (5) opening into a converging-diverging chamber (6) which functions as Venturi tube. The liquid enters from an injection conduit (7) and is mixed with the powder and the mixture is carried to a homogenization turbine (9, 10) from which it is discharged completely homogenized.

Abstract: A device for mixing mortar with a liquid or foaming material includes a reservoir for the dry mortar, a housing containing a portion of a driven shaft with the housing terminating at one end in a mixing chamber; the mixing chamber contains a disc attached to the shaft and rotatable therewith; on one side of the disc, there is located radially extending mixing paddles or blades, the outer edges of the blades and the discs being spaced a predetermined distance to define a gap between the inner surface of the wall of the mixing chamber and the outer edge of the blades and disc; at one end of the mixing chamber an outlet is provided which is connected to a suction device and a baffle ring is situated about the outlet to divert material away from the suction inlet.

Abstract: An apparatus for mixing and degassing components of synthetic resins includes an evacuatable, cylindrical, downwardly tapering container, a worm conveyor centrally, rotatably supported in the container and a drive mechanism therefor, a cylindrical guide tube closely surrounding the worm conveyor, agitating arms secured to the lower end of the worm conveyor and extending outwardly and upwardly adjacent the walls of the container, and collecting arms secured to the lower end of the guide tube and extending outwardly and upwardly adjacent the agitating arms, each collecting arm having a collecting opening therein which faces opposite the direction of rotation of the agitating arms and is in communication with the interior of the guide tube. Each collecting arm preferably has a plurality of upright baffle members mounted thereon.

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

Abstract: A body of liquid, such as an aqueous fertilizer mixture, in a tank is stirred and mixed by apparatus which produces a pattern of recirculating flow including a zone of rapid streamline flow in the tank, preferably an upwardly diverging conical pattern and preferably at an eccentric point in the tank. An addition component in fluid state, such as anhydrous liquid ammonia, is injected into the rapidly flowing liquid in a plurality of fine streams from a stationary injection manifold so as to produce an intimate dispersion of finely divided addition fluid at spaced points in the mixture which is immediately carried away from the injection area and widely dispersed in the liquid mixture. When anhydrous ammonia is thus dispersed in a fertilizer mixture containing a suitable reactant, such as phosphoric acid (H.sub.3 PO.sub.

Abstract: A mixing apparatus is provided in which a rotatable impeller is surrounded by a device having radial openings and being in shearing relationship with the impeller so that material urged outwardly through the openings is subjected to a shearing action. A discharge chamber receives material passing through the openings and is thus pressurized so as to discharge material from an outlet of the chamber.

Abstract: The mixing impeller of the invention has a central, axial hub adapted for attachment to a rotatable driven shaft of a mixer motor. Mounted on the hub is a disc that extends radially from the hub. Circumferentially spaced around the disc are a number of impeller blades. Each blade has two different surfaces for mixing a liquid. One surface is flat and rectangular; the other surface is arrowhead-like, converging from the axial ends of the rectangular surface toward the middle of the rectangular surface of the next adjacent blade. When rotated at a given speed in a fluid in one direction, the impeller draws considerably less power than when rotated in the same fluid at the same speed in the opposite direction. Under certain operating conditions, the impeller has a higher mass transfer efficiency, in both directions of rotation when compared to other impellers. The blades of the impeller may be either open or closed, thereby further modifying the power characteristic of the impeller.

Abstract: An improved liquid mixing device or mixer can be constructed so as to utilize a disk having flat upper and lower surfaces as a boundary layer type rotor for causing fluid movement. This disk is mounted on a shaft which is supported and coupled to a motor in such a manner that vibration is not transmitted to the shaft as the motor is operated so as to turn the shaft. Such a liquid mixing device is considered to be primarily valuable for use in mixing a wide variety of various types of beverages.

Abstract: A drier, especially for viscous materials, comprises a double-wall cylindrical vessel which is heated and to which the material to be dried is fed at one end with the dried material being removed at the opposite end. A drying gas inlet is connected to the drying chamber to pass the drying gas in counterflow or uniflow with the material and a shaft is rotatable along the axis of the chamber and carries adjustable disks with alternately inner and outer openings so that the material path through the vessel is deflected toward and away from the axis as the material passes successively through adjustable-length cells between these disks. All of the disks carry blades which scrape the material from the heated wall from the vessel and at least some of the disks carry rollers of predetermined spacing from this wall to adjust the particle size of the dried product.

Abstract: A mixing device of the type having a housing of generally cylindrical construction, having an end wall with concentric arrays of axially extending mixing elements thereon, a rotor being rotatable within the housing and having on the face thereof further axially extending mixing elements in a plurality of annular concentric arrays, the mixing elements of the rotor and housing interfitting with one another. The mixing elements themselves are each defined by inner and outer part-cylindrical surfaces and by further straight surfaces forming the sides of grooves, the axes of the grooves being disposed along different tangents to an inner pitch circle which is concentric with the part-cylindrical surfaces. This provides a much better mixing effect and produces a certain reverse pumping within the mixer. These features enable the mixing elements to be made shorter with the possibility of the rotors and end walls of the housing being formed by moulding.

Abstract: A jet impeller mixer-agitator having a shaft adapted for rotation by a power source, a hub communicating with the shaft and at least one hollow blade fixed to the hub, the hollow blade having a fluid entrance opening on the effective face of the blade and a fluid exit opening on the non-effective face of the blade with a fluid passage connecting the fluid entrance opening and the fluid exit opening so that upon rotation of the shaft the fluid is directly forced into the fluid entrance opening, through the fluid passage and out of the fluid exit opening.

Abstract: A thin, circular mixing apparatus for receiving from separate sources (1) dry calcined gypsum powder and (2) the liquid ingredients of the core of a gypsum wallboard, with the liquids being fed to a small diameter radially inward centrifugal pump portion, the dry ingredients being fed to a medium diameter circular portion into which the centrifugal pump elements continually force the liquids in an outwardly spiralling path and having a radially outermost circular portion into which the mixture is further forced in a continued outwardly spiralling path and out from which the mixture is discharged, between rotating radially outwardly projecting teeth.

Abstract: A lightweight magnetic stirrer apparatus which may be positioned for rotation in a fluid containing vessel, having a magnetic rotor assembly including a generally vertical center hub on which is mounted a generally horizontal magnetic impeller. The rotor assembly is rotatably mounted in a positioning cage which generally positions the rotor assembly within the vessel and prevents it from contacting the walls of the vessel to allow the rotor assembly hub to rotate free relative to the vessel in the cage under the influence of an exterior magnetic drive. The magnetic stirrer apparatus is also provided with a cage in which the legs are totally removeable so as to make it any size for different beakers. Furthermore, the magnet may be removed completely from the cage so that it may be dropped into the neck of a bottle and the magnet per se used by itself. High lubricity bearing surfaces of the hub and cage reduce frictional forces and allow rotation of the impeller at very low speeds.

Abstract: The invention comprises a method of and apparatus for forming in a liquid a solution of another material which may be in solid, liquid or gaseous phase.The method comprises establishing two zones of mixing with a partial rotating separator between them to cause rotation of the liquid around an axis and circulation within each zone due to the rotation of the separator and causing agitation within each zone by a plurality of axially extending rods which rotate in the liquid adjacent to the rotating separator.The apparatus is a dissolver comprising a tank, a separator capable of rotating in the tank at various levels above the bottom thereof which is provided with a plurality of axially extending rods above and below the separator.

Abstract: Rubber granulate is cold milled in a pinned disk mill having a fast moving disk and a slow moving disk with the number of pins in at least the outer row of the fast moving disk being half the number of pins in the corresponding rows of pins of the slow moving disk.