Abstract: A mixing element for a motionless mixer comprises a passage tube through which fluids flow and a helical blade formed in the passage tube so as to be integral therewith. The interior of the passage tube is partitioned by the blade to form a plurality of fluid passages. The blade extends from one end of the passage tube to the other in the longitudinal direction of the passage tube to be twisted helically clockwise (right-handed) or counterclockwise (left-handed). The corner portions of the fluid passages are rounded. The end edges of the blade are curved in the direction of the thickness and rounded. The motionless mixer is formed by alternately and longitudinally coupling right- and left-handed rotation type mixing elements. The mixing elements are so arranged that the facing end edges of the blades of each two adjacent mixing elements cross at right angles.

Abstract: A beverage making appliance operable automatically or manually, and also providing a hot water faucet. The appliance has a cold water basin located over a hot water tank with a cold water tube extending down into the hot water tank from a basin drain opening whereby cold water discharges into the lower portion of the hot water tank and displaces hot water either through a faucet, or a spray head onto the contents of a brew funnel. When operated in its automatic mode, cold water is delivered to the basin through a conduit connected with a supply of cold water under pressure. The conduit has both flow control and solenoid valves whereby a predetermined volume of cold water is delivered on each actuation of a timer. A level control circuit, together with a water level sensing probe disposed within the hot water tank, also actuates the solenoid valve to maintain a predetermined water level in the tank as hot water is drawn through the faucet.

Abstract: A magnetic stirrer apparatus includes a vessel for liquid and a floating stirrer. The floating stirrer is rotated by a magnet driven by a magnetic field generator laterally of the vessel, and a guide rod through the floating stirrer restricts its movement to rotary movement and substantially vertical movement with change in the liquid level. The magnetic field generator is operative at any level of the liquid in the vessel.

Abstract: A mixing head for two reactive components forms a mixture in a mixing chamber when a control plunger is retracted, the mixture passing into a channel at right angles to the mixing chamber. A second plunger in the channel is partially retracted so that its free end is positioned in line with the opening to form a partial obstruction around which the mixture is formed. Then the second plunger is retracted to allow clearing of residues, and advanced to drive residues from the channel.

Abstract: A centrifugal separator having a rotary bowl for receiving feed which forms a pool within the bowl a skimmer movably mounted to fixed structure within the bowl for removing liquid from the pool to a discharge system with an outlet external to the bowl, and adjustment means operable from outside the bowl for adjustably moving the skimmer oppositely toward and away from the bowl axis to vary the pool depth. However, in accordance with the invention, the skimmer adjustment means includes skimmer mounting means movably connecting the skimmer to the fixed structure within the bowl so as to enable adjustment movements thereof by the adjustment means and so that the hydraulic thrust of the pool liquid against the skimmer is applied by the mounting means substantially entirely to the fixed structure. Preferably, the adjustment movement of the skimmer enabled by the mounting means are essentially radial only to the axis of the bowl, thus greatly reducing the amount of adjustment movement required.

Abstract: A centrifugal separator capable of selectively mounting sedimentation tubes or capillary tubes on a rotor includes a container receptacle mounted in an outer box of the separator for receiving sedimentation tube containers. When the sedimentation tube containers are received in the container receptacle, their presence is detected to enable the rotor to rotate at a relatively high speed required when the capillary tubes mounted on the rotor.

Abstract: An extruder, including a rotor and a barrel, having mixing or working zones therein in which the material being mixed or worked is transferred layer by layer from upstream grooves in the rotor to input grooves in the barrel, and from output grooves in the barrel, which grooves are interleaved with the input grooves, layer by layer back to downstream grooves in the rotor. The input and output grooves of the barrel are intercommunicated by means of corresponding channels each of which has a selectively radially movable throttling member positioned therein for varying the cross-sectional opening of the channel in which it is positioned and, thus, the amount of shearing action and work performed on the material passing through such channel.

Abstract: The present invention comprises a compact variable height, concrete truck having a concrete mixing barrel which may be positioned in a raised position for maximum load transportation and concrete mixing and pouring, and which may be positioned in a lowered position for reduced load tranportation and concrete mixing and pouring and for low clearance truck storage. The raising and lowering of the barrel is performed by an elevation device mounted at the rear of the truck which causes the barrel to be pivoted in a vertical plane about a pivot point at the lower end of the barrel. Lock apparatus are provided for supporting the barrel in both a raised and a lowered position.

Abstract: A liquid pitcher has an integral mixer system/stirrer assembly for mixing liquids directly in the pitcher without shaking or spilling. The pitcher includes a pitcher container and a cover. The mixer itself includes one or more mixing elements mounted on a shaft that extends through an opening in the cover, on the one hand, to position and to permit positioning of the mixing element in the pitcher and, on the other hand, to help fix the shaft at a location relative to the cover and pitcher when the cover is properly placed on the pitcher. Importantly, a handle attached to the shaft outside the pitcher, when the cover is installed thereon, cooperates with the opening that secures the shaft in position and with a mating rim about the cover to guide the handle during such rotation to assure proper positioning of the shaft and mixing element and to avoid excessive wearing of various portions of the assembly during mixing operation.

Abstract: A rotor for a centrifuge comprises a rotatable shaft, a disc-shaped bottom plate fixed to the rotatable shaft, and a holder plate mounted on the bottom plate for holding sedimentation tubes. The holder plate is bodily constructed of a thin plate and has a bent portion positioned between a center and outer edge thereof and projecting upwardly. The bent portion includes a surface directed toward the center of the holder plate and having a plurality of holes for insertion therethrough of the sedimentation tubes. The bottom plate has a plurality of holes aligned with the holes in the holder plate for receiving the sedimentation tubes therein.

Abstract: The invention concerns a device for mixing and dose feeding a product of one or several components.This device comprises a mixing chamber 3 within which is freely mounted a static-type mixing member 7 which thereby can move within the chamber 3 along a predetermined path; this member is associated with return means 9 arranged to repel it in the direction S.sub.2 from the discharge toward the inlets of the chamber; when in motion during the product feed operation, the member 7 permits projecting product doses with high accuracy and without dispersion while also achieving thorough mixing of the product components.

Abstract: Apparatus for making gluten flour using an electric dough maker is provided and consists of a mixer container having rotatable blades and a shaft through a bottom portion, so that the blades can agitate the flour, the mixer container removably affixed to and operated by the dough maker, a first lid placed on the mixer container, means for sucking up starch particles when the flour is agitated, a flexible outlet pipe having one end affixed to the first lid to allow for exit of the starch particles, a second lid affixed to other end of the flexible outlet pipe and a container having the second lid placed on it to trap the starch particles while leaving the gluten flour in the mixer container to be prepared as dough.

Abstract: A centrifuge with a drive-mechanism that incorporates a vertical spindle mounted on ball or roller bearings and driven by a belt in such a way as to rotate while aligning itself in space around a point of attachment on its longitudinal axis with respect to the framework of the centrifuge and with respect to a bearing housing that is supported on the framework. The midplane of the drive belt extends through the point of attachment, with which the center of mass of the self-aligning components also coincide. The overall length of the spindle is short. The ratio L/D of the distance L between the bearings to the diameter D of the bearings ranges from approximately 0 to 2.

Abstract: An agitator device for use in a reactor tank having a longitudinal shaft that is journaled in the tank and oscillated by an external power source. A hub assembly composed of an upper and lower cylindrical portion support a blade holder which is adjustable about an axis that is normal to the axis of the shaft. The upper and lower cylindrical portions of the hub assembly are clamped together to secure the blade holder in its adjusted position. The blade is pivotally adjustable on the blade holder about an axis that is normal to the axis of rotation or adjustment of the blade holder.

Abstract: Apparatus for dampening rotor blade vibratory energy in a rotary machine is disclosed. Concepts employing blade to blade damping are discussed.In one detailed form, a damper (52) is disposed to seat against the undersides of adjacent blade platform sections (20) and a seal (42) is spaced sufficiently close to the damper so as to be deflected against the damper under centrifugal loads to augment dampening of the rotor blades by the damper.

Abstract: A concrete production apparatus produces concrete within a selected temperature range. Ground water is circulated through a heat exchanger in the apparatus to provide a heat source or a heat dump. Concrete water is circulated through another heat exchanger and is heated or cooled to a predetermined temperature. The concrete water at the predetermined temperature is mixed with cement and aggregate to produce a concrete mix within the selected temperature range.

Abstract: An electrical apparatus useful to prepare a hot beverage from a flavor substance. The apparatus has a flow-through heater, a container for a liquid and a cup unit for the flavor substance. A pipe joins the cup unit and the liquid container. The cup unit includes a cup and there is a filter carrier to fit in the top of the cup and to carry a filter containing the flavor substance. A passage extends through the filter carrier and is open at both ends of the carrier. A channel is formed between the base of the filter carrier and the passage. Further passages join the interior of the passage to the channel. The filter carrier has upper and lower closures. The heater unit has a container for a liquid; a heater for the liquid and a head to fit over the cup unit. The pipe extends from the heater to the head.

Abstract: A cart for transporting relatively small batches of concrete mixtures, or the like, and having a reservoir for receiving the components of the concrete therein, an agitator assembly mounted in the reservoir and operable for continuously stirring the mixture during transporting thereof from the site of loading of the cart to the site of utilization of the concrete mixture, a pivotal connection between the cart and a wheeled trailer, a hydraulic cylinder operably connected between the trailer and the cart for selectively pivoting the cart in a rearward direction for discharge of the contents from the cart and pivoting the cart to its normal upright transporting position, and the rear of the cart being of a chute-like configuration for facilitating the discharge of the concrete mixture therefrom.

Abstract: Truck-transportable manually positionable apparatus for blending and dispensing a mixture of liquid asphalt emulsion and sand to fill cracks in pavement includes a support on which a sand hopper and blending/dispensing device are mounted. The device includes a housing having a rotatable sand impeller therein driven by a pneumatic motor and having a valved sand inlet port above the impeller, a pressurized air inlet port between the sand port and impeller (supplied from the same source as the motor), a mixture outlet port below the impeller, and a valved emulsion inlet port between the impeller and mixture outlet port. Gravity fed sand from the hopper is forcably propelled through the housing of the device toward the mixture outlet by the impeller and compressed air, and is mixed with emulsion just prior to exiting the mixture outlet port.

Abstract: A structural support system for a wind driven power plant includes a plurality of circular support frames that are supported relative to a stationary foundation by support columns. The support frames are mounted coincident with and spaced along a support-system longitudinal axis with each frame having a circular inner and a circular outer support ring. Axially directed stringers are connected to and extend between respective inner and outer support rings with associated stiffners to provide a structurally enhanced framework for supporting wind driven power plants. The support columns are preferably hinged to the foundation to permit the columns to be fabricated at ground level and pivoted into an upright position for connection to the associated support frames to provide the completed structure.