Abstract: Rotary distributor plate for distributing particles of solid or liquid material in a centrifugal-type classifier includes a plate-like member having an upper surface, and means carried by the surface for uniformly throwing off from the plate-like member particles of material fed thereto.

Abstract: A control device for a driving unit which comprises an internal combustion engine and a hydrostatic vehicle transmission. The hydraulic adjusting members of the control unit are in response to a relief of pressure automatically by spring force moved to their starting position and are connected to a control circuit which is connectable to the pressure line of a constant delivery pump and is also by a control member connectable to a fluid return line for purposes of setting a control pressure. An adjustable measuring orifice of a limit load control is arranged in the above mentioned pressure line and, when looking in flow direction, is located ahead of the connection of the control member. The control member of the adjustable orifice is connected, for instance, to the gas pedal of the internal combustion engine. A check valve is arranged in a conduit extending from the limit load control to the control circuit of the hydrostatic transmission.

Abstract: A method and apparatus for thermally treating fine granular material such as for the calcining of cement including a furnace for completing the thermal treatment of the material having a burner therein with the material is first received by parallel plural stage separator systems each having plural cyclone separators, wherein the material is heated by hot exhaust gases and material supplied from first and second separator systems to first and second parallely arranged preheater chambers each having their own burner and receiving the full flow of exhaust gases from a furnace to the separators feeding to the preheater chamber and the preheater chambers connected to discharge their exhaust gases to the separator systems, and the final stage of each separator system discharging the material directly to the furnace.

Abstract: A hydrostatic vehicle transmission with a primary and/or secondary part adjustable as to its delivery and its absorption capacity respectively. The hydraulic adjusting elements of said primary and/or secondary part are automatically by spring force adjusted in the direction toward their starting position and are connected to a control circuit which is adapted to be connected to the pressure conduit of a constant delivery pump and is also adapted for controlling the control pressure to be connected to a return line by means of a control member. An adjustable orifice of a limit load control is arranged in the pressure line, which orifice is arranged ahead of the connection of the control member when looking in flow direction. The adjusting member of said limit load control may for instance be connected to the gas pedal or manually operable gas lever of an internal combustion engine for instance a Diesel engine while the hydrostatic vehicle transmission also serves as vehicle brake.

Abstract: A device for magnetic lifting and removal of the feed opening cover of a coking chamber oven from the charging region of said oven comprises a magnet carried by a gripping unit and operatively connected with a crank drive for rotating said cover back and forth in said gripping unit, said magnet further being operatively connected with a displaceable slide means through the intermediary of a guide rail for guiding the movement of the slide means, the rail having horizontal and vertical branches, actuation of a drive means for said slide means first causes lifting of said cover and then lateral displacement of said slide means with said cover.

Abstract: A device for starting one of a plurality of airplane engines with a starter by way of hydrodynamic transmission elements or a hydrodynamic torque converter having arranged in parallel therewith an overriding clutch that is connected to each engine. The engines are adapted to be coupled to each other by means of transmission gearing and coupling means arranged behind the hydrodynamic transmission elements when viewed from the engine side. The hydrodynamic transmission elements are adapted by variation of the filling to be controlled in such a way that the power intake beyond a predetermined speed will increase at a lower rate.

Abstract: A device for mixing and/or apportioning of pulps and similar liquids comprises a receiving chamber housing to the bottom end of which a pulp outlet housing is attached which is provided with discharge nipples. Said receiving chamber housing has an inlet and a bottom member provided with a plurality of apertures in communication with a plurality of outlet chambers in said outlet housing in such a manner that each of said outlet chambers is connected with said receiving chamber through at least one of said apertures.

Abstract: A cylinder is connected to the cylinder head by electron beam welding along a welding seam extending from the exterior of the cylinder to an annular slot. The annular slot is provided in that end face of the cylinder which is adjacent the cylinder head and having its extension of depth extending in the longitudinal direction of the cylinder.

Abstract: A water cooled internal combustion engine with a cooling blower arranged at one end face of the engine and with at least one water cooler which is acted upon by the cooling blower and extends alongside the engine. The internal combustion engine is supercharged and equipped with a supercharger intercooler arranged below the water cooler and parallel to the central axis of the engine. The cooling air delivered by the cooling blower passes through the supercharger intercooler in a direction perpendicularly with regard to the central axis of the engine. The supercharger intercooler has a gap of its own for the discharged air which has an exit parallel to the discharged air of the water cooler.

Abstract: A rotary piston internal combustion engine with a fission vaporizer, gasifier or carburetor means with sealing strips arranged on a mantle section of the housing, and with piston means of trochoidal construction in which the circumference of the piston means is depending on the number of cycles of the employed working method divided by a plurality of axis-near zones or lobes into arches. The piston means form within the region of each arch which during the compression and expansion cycle forms a portion of the confinement of the pertaining working chamber comprises a change-over conduit which is controlled by means of a control opening in an end face of the piston means.

Abstract: A gas turbine with a centrifugal compressor as generator for compressed air and with a withdrawal of compressed air for outside use, according to which within the region of the withdrawal area at the compressed air passage there is provided an adjustable flow divider which during the withdrawal of compressed air divides the oncoming quantity of air into a withdrawal quantity and a gas turbine quantity.

Abstract: A ball mill having a wall forming a hollow tubular grinding chamber therein with balls or rods within the chamber and means for driving the chamber in a vibratory grinding motion with a fixed body in the form of an elongate shaft within the chamber supported on a tubular wearing plate having a gap along one side and springing outwardly to support itself firmly within the grinding chamber and having arms extending between the wearing plate and the fixed shaft for supporting the shaft and a removable end for the grinding chamber so that the shaft and wearing plate can be removed for replacement from the grinding chamber.

Abstract: The invention relates to a method for separation of liquids from a mixture of solid matter and liquids by supplying said mixture to a separation member which is permeable by liquid, simultaneously applying a vacuum to the underside of said separation member, and subjecting said separation member to vibrations. The invention also includes a device for carrying out said method.

Abstract: A stand is provided to carry a pressure roller in horizontal engagement with a longitudinal surface of a raceway about a large rotating kiln or other drum, the roller being displaceable in a longitudinal direction to force the raceway to oscillate across its radial support rollers, thereby to increase the life of the raceway under wear from concentrated mechanical support stresses. An hydraulic cylinder selectively displaces the roller by acting on a frame on or in which the pressure roller is carried.

Abstract: A centrifugal separator is provided with a rotary distributor provided with a plurality of vertically spaced coaxial rotating disks, in which the upper rotating disk is of smaller diameter than the lower rotating disk. The distance between the disks may be adjustable. The lower disk baffles an updraft separating air current whereby powdered material is separated from the coarser material as centrifuged from the upper disk, and any material escaping the upper disk without being thrown thereby into the air stream drops down on the larger lower disk and is thrown into the air stream by the lower disk. Either or both of the disks may be provided with agitator vanes.

Abstract: In vertical continuous furnace calcining of lime, dolomite, magnesite, or the like, part of the air which is introduced at the lower end of the furnace chamber is drawn off in the area of the cooling zone within the chamber and is then reintroduced in encompassing relation into the material column in the firing zone within the furnace chamber and which is located immediately above the cooling zone, the remainder of the air flowing up through the column of material being treated in the chamber. Cleaning of the withdrawn cooling air and addition of fresh air are provided for.

Abstract: An agitation flotation cell for the preparation of minerals and coals having at its lower end a structure including a vertical shaft with a disk at the lower end of the shaft being circular in plan view with said disk having a first lateral section tapering outwardly and downwardly from a central diametral line passing through the shaft and a disk having a second lateral section tapering outwardly and downwardly from the central diametral line with the two sections meeting at a peak to form a roof-shaped surface with first and second radially extending vanes projecting above the first and second sections extending at right angles to the peak and third and fourth radial vanes extending downwardly from the peak on the bottom side of the vanes and being parallel to the peak.

Abstract: An agitation flotation cell for the preparation of minerals and coals having a vertical rotatable shaft surrounded by an air intake pipe with upper and lower annular plates coaxial with the shaft each having central agitation intake openings and an agitator carried on the shaft between the plates including a plurality of outwardly extending agitator paddles having axially facing surfaces with the paddle surfaces positioned at different oppositely disposed angles relative to an orbit plane at right angles to the axis of the shaft producing opposed axial thrust forces on the material agitated in the shaft with radially extending vanes between the paddles with the vanes being substantially parallel to the shaft.

Abstract: A vibrating ball mill having a pair of vertically spaced horizontally disposed grinding chambers rigidly mounted as a unit in a vibrating support frame. Each grinding chamber is enclosed by an insulating sleeve and at the connecting joint between the outer wall of the grinding chamber and the supporting frame a supporting device is arranged which has good insulating characteristics and is able to appropriately transfer the accelerating forces from the supporting frame to the grinding chamber.

Abstract: An improved comminuting rolling mill wherein a solid material such as mineralic loose or bulk materials are introduced into a gap between opposed parallel counter rotating comminuting rollers with the material being supplied by a delivery device above the rollers having a discharge slot extending the length of the gap between the rollers and being provided with means for accelerating the charging material to the speed of roller surface travel, with the delivery device having opposed porous walls and having means for supplying a flow of air through said walls for fluidizing the material so that fluidized material flows into the gap between rollers and the device being provided for pressurizing the delivery device so that the material is carried between the rollers at the desired speed.