Abstract: In a double band press the compressing pressure is applied to the endless bands by pressure plates via intermediate pressure rolls. The pressure rolls extend transversely to the running direction of the steel bands and are interconnected at their ends by a guide chain. More than two pressure rolls are associated with each pair of connecting bolts of the guide chain. The axes of the pressure rolls are parallel and are offset transversely relative to the axes of the connecting bolts of the guide chain. In this manner, a stable connection of the pressure rolls among themselves is made possible, with the pressure rolls having a smaller diameter and being capable of being arranged closely adjacent to each other. A more uniform and higher distribution of pressure may be obtained thereby.

Abstract: An apparatus is disclosed for making a drip-type coffee beverage wherein the apparatus has a separate flow path for receiving and reheating a previously filtered coffee brew.

Abstract: An apparatus is disclosed which is useful for mixing ammonia, in a vapor-liquid phase, with an additive composition, in a liquid phase, to obtain a homogeneous vapor-liquid mixture of the anhydrous ammonia and the liquid additive compound. The apparatus described herein is particularly suitable for use in a field applicator, for applying the anhydrous ammonia to the soil, as a nitrogen fertilizer, in combination with an additive, such as a nitrogen stabilizer. In operation, the vapor-liquid ammonia stream is metered through a meter regulator and then passed downwardly into a mixing chamber. Below the meter regulator is a delivery tube through which the liquid additive is metered into the ammonia stream before entering the mixing chamber. Inside the mixing chamber the ammonia-additive stream is further mixed to obtain a homogeneous mixture, which is then passed downwardly into a distribution chamber. From this chamber the mixture is delivered to a use point, such as a row of soil knives in a field applicator.

Abstract: Disclosed is an apparatus for blending sand and solid additives selectively and at selected rates into water for injection into a well. The apparatus may be truck mounted, and includes a frame, an input line with manifold and pump, a mixing tank, a variable venturi nozzle for delivering water to the tank, and an output line with pump, manifold, and recycle line. An auger delivers sand to the mixing tank. Dry chemicals are fed to the tank adjacent the variable venturi nozzle where the water is turbulent, at low pressure, and in high shear. Liquid chemicals may also be pumped into the tank.

Abstract: A nozzle assembly (26) to be connected to an outlet 24 of a flexible inflatable bag (18, 20) for emitting a stream of air under pressure therethrough to remove fluid from the surface of a vehicle including an elongated body portion, an inlet portion (36) defining a first elongated opening (37) and being adapted to be connected to the bag outlet (24), and a nozzle portion (38) defining a second opening (40) having a smaller area than the first opening (37). The nozzle assembly (26) is characterized by a plurality of rollers (50) and a plurality of projections (52) extending from and being integral with the nozzle portion (38) for supporting the rollers (50) longitudinally along the nozzle portion (38).

Abstract: Shaker apparatus for containers having paint mixtures therein includes a housing, U-shaped holder frame means supported in the housing, and clamping disks for detachably securing containers in the holder frame means. The U-shaped holder frames are mounted for rotation on power driven shaft means horizontally received in the housing. Drive means responsive to rotation of the U-shaped holder frame members about a horizontal axis is operable to turn the clamping disks about axes perpendicular to the said horizontal axis. The drive means includes rotatable sheave means having endless belts which are engageable with stationary sheave means. The stationary sheave means are fixed to the power driven shaft means and located in coaxial relationship therearound.

Abstract: A supersonic centrifugal compressor comprises a bladed rotor which delivers fluid at an absolute velocity exceeding Mach 1.2 under rated conditions to an annular radial flow diffuser. The diffuser has a casing including spaced sidewalls and vanes defining intervane channels each having a throat section located downstream of the leading edges of the channel defining vanes. A pair of common secondary spaces are formed each in one of said sidewalls and communicate with parietal slots symmetrically formed in the sidewalls and opening into the channels. The slots are located and dimensioned to overlap the throat section in the flow direction and each has a cross-sectional flow area at least equal to half the flow area of the channel at the throat.

Abstract: An apparatus 10 for stripping fluid from the surface of a vehicle including a flexible inflatable bag 12 including an elongated bag inlet 14 having a predetermined cross-sectional area and an elongated opening at one end thereof defining a nozzle 16 and a plenum (20), the bag inlet 14 being mounted on the plenum 20 for the flow of air from the plenum 20 into the bag 12. A pair of bag-retaining rods 30 extend the length of the bag inlet 14 on each side thereof and saddle members 32 are disposed between the retaining rods 30 for positioning the retaining rods (30).

Abstract: A post mix dispensing system for mixing together and dispensing carbonated water and a flavored soft drink syrup, while generating substantially reduced amounts of foam. Carbonated water is injected into a special staging chamber, where it circulates turbulently at about atmospheric pressure. The water is ported from the chamber through a plurality of elongated ports, substantially under gravitational forces alone, and the ports are configured to straighten the flow of water and remove most of its kinetic energy. A nozzle deflects the water to converge upon a stream of syrup and to mix with the syrup in an unconfined region, after a substantial proportion of the gases released from the water has escaped, thereby substantially reducing the generation of foam.

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: This invention is directed to a process and apparatus for mixing a pulverulent or small particle size additive into at least one of the liquid reaction components for the preparation of a reaction mixture which forms a solid substance or a foam, wherein the reaction components are introduced into separate chambers and subjected to turbulence by stirring and the pulverulent additive is stirred into at least one of the reaction components and that liquid reaction component charged with the additive is transferred into a second reaction component and mixed therewith.

Abstract: A juice press includes a fixed platen and a base held separated by a frame which serves as a track. The track guides movement of a moveable platen toward and away from the fixed platen under the influence of an extension jack mounted between the base and moveable platen and return springs which connect the base and moveable platen.

Abstract: A decanting type centrifuge having a main bowl which is adapted to be rotated about its longitudinal axis and which contains a helical scroll conveyor which is arranged to rotate about the main bowl axis at a slightly different speed to the main bowl for scrolling separated solids to a solids discharge end of the bowl. The centrifuge includes a means which acts to isolate a gas volume radially inwardly of the inner liquid surface within the bowl and also a passage arrangement which enables gas to be extracted continuously from the isolated gas volume to a location external to the main bowl.

Abstract: A brush (10) is provided. The brush (10) includes a housing (12) which includes an aperture (28). Bristles (42) are mounted within the housing (12) and extend through the aperture (28). A cover (50) is provided and includes an aperture (52). Cover (50) is slidably mounted to the housing (12) and housing (12) is selectively rotatable within the cover (50). Housing (12) is rotatable to a first position exposing bristles (42) through the aperture (52) of the cover (50) for use of the brush (10). Housing (12) is rotatable to a second position for covering the aperture (28) and the bristles (42) when the brush (10) is not in use.

Abstract: A surge bin for concrete mix comprises an open-topped body having side walls with rear portions that converge towards a gated rear discharge outlet and having a bottom wall curved concentrically to an agitator axis that extends fore-and-aft in the body. A horizontal frame underlies the body. Front and rear lifting actuators connected between the frame and the body move the body between a charging position in which the bottom wall is near the frame and a discharging position in which the body is above and to the rear of its charging position. The side walls are of such height that conventional dump trucks can discharge over them with the body in charging position. An agitator in the body rotates concentrically to said axis, in one direction to move material out of the outlet, in the opposite direction for remixing.

Abstract: In a centrifugal fan having radially directed fan blades, each having, in combination, a serrated surface forming in longitudinal cross-section a sawtooth configuration in the radial direction of the rotating blade with a wear resistant coating over a substantial area of the serrated surface.

Abstract: The appliance comprises a mixing chamber within which a mechanical beater is rotatably mounted, an oil reservoir, a sliding separator placed beneath the oil reservoir and a mixing chamber placed beneath the separator. Oil is fed from the reservoir to the mixing chamber via a calibrated passage which opens into the mixing chamber in a suction zone created as a result of the centrifugal force produced by the mechanical beater.

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: The lower support for single screw mixer of this invention is comprised of a support shaft rotatably secured in the bottom of a mixer having an inverted, truncated cone configuration. A connecting shaft is rotatably disposed within a bearing housing fixed to the lower end of the screw flight shaft disposed along the periphery of the mixer. The screw is attached to an orbit arm which rotates about the center axis of the mixer and through which the screw is rotated at relatively high speeds. Such relatively high speeds, however, are not, by virture of the bearing arrangement contained within the bearing housing fixed to the screw, imparted to the connecting shaft. The support shaft 20 and connecting shaft 36 are connected to one another by a pin arrangement which accommodates deflections imparted to the screw by the forces encountered during mixing.

Abstract: A slurry mixing and pumping system adapted to automatically control both slurry viscosity and product output volume. Water and raw gypsum delivered to a mixing vat are thoroughly blended by a hydraulically powered agitator blade within the vat. Hydraulic pressure variations experienced by the agitator motor are translated into pneumatic viscosity control signals by a process controller. An air actuated water valve driven by the controller varies water input into the vat to effectuate viscosity correction. Means responsive to vat head level controls output volume.