Abstract: A pressure vessel and a drum rotatably arranged inside which has an inner space for material that is introduced into the pressure vessel. In various embodiments, a drive mechanism rotates the drum in relation to the pressure vessel. The drive mechanism can include a motor that can be located inside the pressure vessel in an interspace between the drum and the pressure vessel. Some embodiments include a door to close an opening of the pressure vessel and a part of the door can extend into an open end of the drum when the door is closed to keep the material in the drum and out of the interspace. In particular embodiments, a steam supply conduit extends into the drum at the closed end of the pressure vessel. In some embodiments, a helical agitation blade in the drum moves the material away from or toward the opening.

Abstract: An apparatus for treating material includes a pressure vessel and an agitation device for agitating the material received in the pressure vessel. The agitation device may include a drum which may be rotatably arranged inside the pressure vessel and which has an inner space for receiving the material that is introduced into the pressure vessel. The agitation device may include one or more agitation blades mounted in the drum so as to act on the material received in the inner space of the drum as the drum rotates in relation to the pressure vessel. A drive mechanism may rotate the drum in relation to the pressure vessel. Waste, such as garbage, may be treated with steam and pressure using the apparatus.

Abstract: A liftings trough for mounting in an interior space of a rotatable member of a length grading machine is defined by walls that are contoured to provide a maximum clearance between the mounted trough and an inlet opening through which grain flows into the interior space of the rotatable member, while maintaining a maximum capacity of the trough to receive granules in a particular size range, which are lifted by pockets located along an interior surface of the rotatable member, when the grain flows into the interior space of the member and the member rotates about the trough.

Abstract: The present invention provides a method and an apparatus for removing heavy metals such as gold from sand. A mixture of sand and metals is placed in a hollow tube which has an open end, an opposite closed end at a relatively lower position, an exterior, and an interior formed into spiral grooves. The grooves are arranged in a helical fashion so that metal caught in the grooves is carried toward the open end of the tube as the tube is rotated. Water is supplied to the tube to mix with the sand and metal, so that rotation of the tube causes relatively heavy metal to be washed from the sand and water mixture into the grooves. The mechanism can be transported to a location where heavy metals naturally occur in sand or other materials.

Abstract: A bar screen is primarily intended for use in draining liquid from wood chips and pulp without blocking the bar screen. The area of use is especially a process area, in which cooking and circulation liquid is removed from a pressure vessel when making chemical pulp and paper pulp by continuous method. This type of bar screen is characterized in that behind the filtering gap of the screen bars, there is a flow space in which the liquid flows towards a discharge outlet. By adjusting the flow space, a flow rate of liquid which stops blocking due to accumulation is maintained in the background. The sturdiness of the screen structure is improved by adjustable support taps.

Abstract: A screen cylinder (125) used for screening cellulosic fibrous material pulp in the pulp and paper industry incorporates first (66) and second (67) downstream surfaces (16) having contoured slopes that form a funnel entrance of the grooves (13) at the screen cylinder slots (17). The contoured construction of the screen cylinder (125) effects greatly enhanced utility compared to conventional milled and discrete element screen cylinders, including substantially avoiding the Coanda effect.

Abstract: A hollow rotating drum 1 is provided in an oblique manner and is rotated by two pairs of rollers 3a, 3b. A size classification unit 2 is provided in the vicinity of a center of the rotating drum in a lengthwise direction of the drum, and water is added from a water addition unit 4. An object to be moisturized is supplied from an opening on an upper portion of the rotating drum in a supplying direction 5 of the object. Then, the object is moved spirally within the rotating drum to be moisturized. An object, i.e., a moisture-processed substance having a size equal to or smaller than the predetermined size is classified by the size classification unit to be continuously discharged in a direction 6 of movements of the moisture-processed substance. Also, an object, i.e., residue having a larger size than the predetermined size, is continuously discharged from an opening on an underside of the rotating drum in a direction 7 of movements of the residue.

Abstract: A grain separator is disclosed comprising a plurality of operatively connected grain separator units and a grain inlet for feeding grain into the separator, wherein the grain is separated . The grain separator also has an outlet for dispensing the grain after the grain is separated and an internal drive for operating the units in separating grain.

Abstract: A grain sorter for use in a rotary type rice hulling and sorting device comprising a hulling part, a pneumatical sorting part, sorting cylinders rotatably installed so that mixed rice grains may be fed from one end and the sorter rice grains may be discharged from the other end. The sorting cylinders have a large number of recesses formed on their internal surface and troughs for taking out the sorted rice grains received by the recesses which are installed inside the sorting cylinder. The troughs consist of (1), a plurality of troughs for taking out finished sorted rice grains of the sorted rice grains received by the recesses and (2) a plurality of troughs for taking out sorted rice grains, which must be sorted again, of the sorted rice grains received by the recesses.

Abstract: An apparatus for counting substantially cylindrical articles comprises a rotatable elevator cylinder having a circumferential series of compartments for the articles on the inside surface of the cylindrical wall thereof. Means are provided for sensing the presence of an article in each compartment when passing a predetermined position in the rotational path of the compartments, and for sensing the arrival of each compartment to said position, as well as means for making one count in dependence on the sensing of an article in said position.

Abstract: A length separator comprising at least one rotational member, e.g. a disc or a cylinder, having cells for lifting seeds and other particles from a lower position to a higher position, and a trough for receiving the lifted material. The rotatable member is associated with at least one sensor located in the flow of the lifted material supplied to the trough, for generating an electric signal in dependence on impingement of material particles leaving the rotatable member and falling down into the trough. The sensor is operatively connected through an electronic function unit to adjusting means for controlling the flow of material to be cleaned which is supplied to the separator, in dependence on the impingement intensity.

Abstract: A spent hydrotreating catalyst having carbonaceous and metallic deposits comprising generally cylindrical, free flowing particles of regular geometric shape having substantially the same diameter but of varying length is stripped, length graded, density graded using an upward flow of gas through an inclined, vibrating surface, and regenerated to achieve catalyst activity very near that of a fresh catalyst.

Abstract: A sorting device for sorting out a multiplicity of pieces such as tickets according to their size, comprises a cylindrical sorter drum rotatably mounted in a frame for storing therein pieces having different sizes to be sorted out, means on the sorter drum including openings for passing therethrough pieces of a particular size only; and a motor for rotating the sorter drum about its own axis to cause the pieces of the particular size to be discharged through the openings out of the sorter drum.

Abstract: Solid waste incinerator fuel is preclassified by passing it through a hollow rotating cylindrical drum which has two sets of extensions from the wall going lengthwise along the length of the drum, the first set toward one end and the second toward the other, the second set being shorter or smaller-sized than the first and the first preferably having rodlike projections which may have at least partly knifelike or bladelike ends or edges at the axial or inner ends thereof. The first set of extensions homogenizes the incoming waste by lifting, dropping, churning, and ripping it as well as fluffing it. The second set of extensions, preferably angled, lifts smaller sized heavier, non-combustible particles to the upper part of the drum from which they are removed at the exit end. The lighter material, mostly combustibles such as paper, textiles and wood, for example, is discharged toward the bottom of the exit end of the drum.

Abstract: A driving device of sorting cylinders for use in a rotary type rice hulling and sorting device, characterized by comprising a hulling part, a pneumatical sorting part and a rotary type sorting part provided with sorting cylinders rotatably installed therein with one end thereof as the feeding side of rice grains to be sorted and the other end thereof as the discharging side of rice hulled and sorted and having a large number of recesses formed on the internal surface thereof and receiving troughs for taking out the rice grains scooped up by said recesses, said hulling part, said pneumatical sorting part and said rotary type sorting part being integrally constructed and interlocked, and the rotational speed of said sorting cylinders being controllable optionally in no connection with the revolution of said hulling part and said pneumatical sorting part.

Abstract: A machine for hulled grain employs a single horizontally disposed rotating hollow cylindrical body having its interior surface covered with a multiplicity of recesses designed to scoop up individual hulled grains at the bottom and to drop them out near the top. A partition separates the body into two compartments and two troughs containing screw conveyors extend the length of the cylindrical body and an arrangement of longitudinally extending plates are combined with the partition so that in the first compartment one of the conveying troughs brings the grains from a huller to the far end of the compartment while the other conveying trough catches the dropped grains and carries them to the far end of the second compartment and discharges them at that point to the bottom of the cylindrical body for re-sorting while the first conveying trough in the second compartment catches the re-sorted grains as they drop from above and carries them on to be discharged at the far end of the cylindrical body.

Abstract: A rice hulling and sorting machine includes a pair of hulling rolls which drop husked rice grains into a pneumatic sorting compartment which the husks are preliminary sorted from the rice grains; the rice grains thereafter being thrown upwardly into one end of the upper of two horizontally mounted rotating sorting cylinders. The interior surfaces of these cylinders have a multitude of recesses for trapping single rice grains at the bottom of their circumferential paths of movement to carry them upwardly and dropping them into conveying troughs which run the length of the interiors of the cylinders. Rice grains which are not trapped in the upper cylinder are fed back into the hulling rolls while those dropped into the upper trough are fed to the lower interior of the lower cylinder where they are again subject to being trapped in the recesses of the lower cylinder and dropped into the lower conveyor trough.

Abstract: Herein described is a machine for removing raisins spoiled by mold from good raisins. An angularly disposed rotating screened cylinder causes raisins to be lifted and dropped to the bottom of the cylinder. Because of the fact that the bad raisins are soft and sticky they will stick to the screen. Good raisins will be tumbled towards the bottom of the screened cylinder and out. Spray nozzles force water through the screened cylinder washing the stuck raisins into a trough where they are kept separate from the good raisins.