Abstract: A sieving device comprises a sieve with an electrical linear device mounted in spaced apart relation from the mesh of the sieve. Particles supplied to the side of the mesh away from the thrust device are caused by the thrust device to move across the mesh and those which are smaller than the mesh pass through the mesh and towards the thrust device. Conveniently a plate is disposed between the mesh and the plate. Particles passing through the mesh then come into contact with the plate and move along it under the influence of the thrust device.

Abstract: A materials separator apparatus comprising a stacked array of horizontally oriented and vertically spaced separator stages, which may be interconnected by a material conductor disposed for receiving commingled materials from an upper stage and feeding it to an input portion of a lower stage, each stage including a vibrating, endless belt supported for carrying a stream of commingled materials longitudinally over a steady-state magnetic array of spatially alternating, oppositely polarized magnets disposed substantially parallel to one another and extended transversely at an oblique angle to the stream whereby electrically conductive items of nonferromagnetic material passing over the magnetic array are deflected laterally out of the stream, the materials remaining in the stream may be discharged from the belt by passing them over a roller which may be magnetized for segregating dielectric nonferromagnetic material from ferromagnetic material.

Abstract: Apparatus for separating non-magnetic metals to permit recovery, for example, of aluminium and other non-magnetic metals mixed with materials having other compositions. The mix of materials are vibrationally conveyed in a first direction by a vibration feeder and a deflecting force in a second perpendicular direction is exerted on the non-magnetic metals by moving magnetic fields produced by a plurality of linear motors. The apparatus includes means for controlling the longitudinal tilt and the transverse inclination to optimize the separations achieved with different mixes of materials.

Abstract: A high gradient magnetic separator particularly for the desulfurization of coal. The process and apparatus are continuous and suitable for high volumes of material in a fluid stream. They employ the concept of a high gradient magnetic field through a stream of material that has some portion of magnetic particles which are to be separated. Within the separator is a matrix of magnetizable material, such as stainless steel wool. A magnetic field is formed of a series of magnetic coils surrounding the stream of material from the inlet to an outlet. Each of the coils are magnetized and then demagnetized in sequence so as to drop or release magnetic particles from the steel wool to the fluid stream as it flows through the separator.As the magnetic particles concentrate they are flushed out through a diverter valve for a short moment and the process continues. Passage of the stream of material is continuous for all practical purposes.

Abstract: Non-magnetic, conductive metals can be separated from mixtures containing such metals, organic materials and non-metallic inorganic materials by moving a stream of the mixture through a linear motor force field wherein the force field displaces the non-magnetic conductive metals from the stream.

Abstract: An apparatus for use in separation and recovery of pieces of different materials according to the difference in electric conductivity of each kind of materials, by utilizing the interaction between a magnetic field, induced by the eddy current and an external magnetic field. The separating capability of the apparatus of the type is largely dependent upon the shape of pieces being separated as well as the difference in electric conductivity between the pieces of different materials. According to the apparatus of the present invention, samples to be separated are rolled into a flat shape, then subjected to the screening, followed by their passing through a plurality of rotating magnetic fields whose intensities are being increased one by one, whereby the sample pieces are separated effectively according to their electric conductivity, and thus recovered.

Abstract: A continuous flow magnetic separator is disclosed for classifying magnetic and paramagnetic particles as concentrate from their mixture with ambient tailings. The separator includes a helical classifying path interior of a non-magnetic, non-conductive conduit, with the conduit wound along a path having an "uphill-downhill" slope with respect to the ambient gravitational bias. A magnetic field (preferably generated by an AC or DC energized coil) is aligned substantially coincident to the axis of generation of the helical path. This magnetic field is confined interior of a high permeability (preferably laminated) magnetic field conducting core having two elements. The first element, to which the coil is attached, is an outer cylindrical conductor (preferably closed at the bottom) defining interiorly thereof a cylindrically shaped inner volume. The second element is a cylindrical rotor having serrated edges and mounted for rotation about the axis of the helical path.

Abstract: A comminuted trash mixture containing aluminum and other non-ferrous conductive metals is transferred to a conveyor system having a series of conveyor belts, each successive belt having a higher linear velocity than the preceding belt. A linear motor type separator adjacent the highest speed belt diverts the non-ferrous conductive metals off to one side of the conveyor where it is received by a second conveyor system including a plurality of conveyor belts of successively higher linear speed. A second linear motor type separator is used to divert non-ferrous conductive metals off to one side of the second conveyor group, with the remaining materials on the conveyor being transferred back to the beginning of the first conveyor group for recirculation through the first separator.

Abstract: A system for separating electrical conducting components from mixtures such as scrap and trash, particularly aluminum, copper and stainless steel materials, since magnetic materials are readily removed by simple magnets. A polyphase induction motor connected with capacitors for each phase for continuous operation under resonant conditions. A conveyor system for moving the mixture across the motor along a path perpendicular or oblique to the axis of the motor, with the motor intermittently loaded to move the randomly arriving electrical conducting components out of the remainder of the mixture.

Abstract: A mixture of ferromagnetic material and non-ferromagnetic material is separated by first conveying the mixture to an inlet of a tubular member. An electro-magnetic field is then sequentially energized along the length of the tubular member from the inlet to an outlet to attract the ferromagnetic material away from the mixture into the inlet and impel the separated ferromagnetic material through the tubular member for subsequent discharge through the outlet.

Abstract: A separator for separating small permanent magnetic particles from larger objects comprising a non-magnetic perforated basket within a non-magnetic solid wall container, both within a generally vertical rotating magnetic field. The basket supports the mixture of permanent magnetic particles and objects and has perforations larger than the permanent magnetic particles and smaller than the objects. The container extends below the magnetic field to receive the magnetic particles as they are separated and to retain them outside of the influence of the magnetic field.

Abstract: A magnetic matrix separator for selectively separating diverse particles subjects the particles to the interaction of vibratory and magnetic forces induced conjointly by the application of an intensified intermittent or alternating magnetic flux to the matrix. Continuous, dual separating actions are obtained with a flexibly mounted circular matrix structure caused to rotate with respect to the pole faces of a pair of U-shaped electromagnets. Use of a systematic arrangement of uniformly shaped matrix components facilitate rapid processing of the particles for separation.

Abstract: A method, wherein an electromagnetic field is established in which a precipitate of pigments is formed from aqueous solutions of the salts of metals in the presence of ferromagnetic solids, whereupon the precipitate is treated to obtain a finished form of pigment.

Abstract: In a magnetic substance conveying apparatus, to convey the magnetic substance along the outer periphery of an outer cylinder made of non-magnetic material by the relative rotational movement between the outer cylinder and an inner cylinder inside the outer cylinder and having magnets wound therearound in a spiral fashion, the angle of the spiral of the magnets wound over the inner cylinder gradually increases as the spiral advances toward the end thereof.

Abstract: A system for separating electrical conducting components from trash, particularly aluminum, copper and stainless steel materials since magnetic materials are readily removed by simple magnets. A linear induction motor connected as an artificial transmission line for operation from a single phase supply to provide a travelling wave along the motor for moving electrical conducting components. A conveyor system for moving the trash across the motor along a path perpendicular or oblique to the axis of the motor, with the motor functioning to move the electrical conducting components.