Abstract: A method of removing foreign materials from developers characterized by intermittently supplying a magnetic developer to the peripheral surface of a nonmagnetic sleeve provided with a rotatable magnet roller in its interior, while recovering, at a position a specified distance away from the location of supply of the developer along the sleeve peripheral surface, the forward end portion of a layer of the developer moving along the sleeve peripheral surface in a direction opposite to the direction of rotation of the magnetic roller to thereby remove foreign materials from the magnetic developer.

Abstract: A vehicle for cleaning a railway roadbed of magnetic articles such as spikes, tie plates, rail support plates, bolts, and the like has a chassis supported by rail engaging wheels which are rotated by a hydraulic motor powered by an internal combustion engine driven pump mounted on the chassis. At least one endless conveyor of non-magnetic flexible material is mounted on the chassis with a lower end thereof adjacent the roadbed and passing over a lower drum supporting fixed magnets. The conveyor is driven by a hydraulic motor powered by the pump to move at the same speed as the vehicle to prevent scuffing over the ballast of the roadbed. The endless conveyor is provided with spaced parallel cleats across the conveyer whereby metallic articles attracted by the magnets acting through the conveyor will engage the articles and move them along the conveyor out of the field of action of the magnets.

Abstract: The underflow of a cyclonic separator is discharged onto the drum of a magnetic separator and is confined to flow around the drum along a narrow channel so as to filter the underflow through swarf collected on the drum within the channel while preventing the underflow from washing across and disturbing the swarf collected outside of the channel.

Abstract: A magnetic separator comprising a feed hopper for a raw material to be separated, chutes for separating and discharging respectively the concentrate and the tailing magnetically separated from each other, a rotary drum incorporated in the casing and having separation walls of a non-magnetic material disposed on both sides thereof and forming therebetween at least one feed separation passageway extending from the feed hopper on the rotation side of the rotary drum up to the discharge shoots, and series of stationary magnetic poles disposed at the back of both of the separation walls.

Abstract: Magnetic separators for cleaning liquid, pasty and dry materials by separating magnetic from non-magnetic substances contained in said materials, wherein means are provided to form a flow-through housing with at least one separation roll arranged therein which magnetically cooperates with an antipole, said separation roll, including a shaft on which it is mounted for rotation, and said antipole are mild iron parts of at least one magnetic system with a closed magnetic circuit.

Abstract: A magnetic separator comprises a magnet and an iron cylinder rotatable in a gap in the magnet. The cylinder and the lower pole face of the magnet define a separator chamber. An aqueous suspension of magnetizable and non-magnetic particles is supplied to the separator chamber through channels extending through the magnet.

Abstract: A conveyor carries cans or other refuse from a source of cans to a jaw crusher. The conveyor is adapted to drop cans generally one at a time into a bin, and the bin has an opening to release each can when the jaws open to receive it. In the open position, the jaws are spread far enough apart so that the can drops to the bottom thereof. A flap is provided at the bottom to hold the can between the jaws. The end of the flap extends to a position above the bottom of the stationary jaw. As the jaws come together in crushing, the moving jaw cams the flap downward along the stationary jaw. However, the flap is not cammed entirely out of the area beneath the jaw until the jaws have come together to hold the can. The flap ensures that no lip is formed on the can. After the jaws close, the flap is moved out from beneath the jaws so that when the jaws open, the crushed object can fall out of the jaws for carrying away.

Abstract: Containers made of various materials, such as aluminum and steel beverage cans, and glass beverage bottles, are crushed and separated to permit recycling of the metallic materials by a method and apparatus comprising crushing the containers in a container crushing means having two cone shaped members being rotationally frictionally engageable with each other, one of the cone shaped members being displaceable from the other against the resistance of a spring means, wherein the containers are crushed as they pass between the cone shaped members, conveying the crushed containers away from the crushing means on a container conveyor and separator means comprising an endless belt member having a first end portion for receiving crushed containers from the crushing means and a second end portion, separating the magnetic from the non-magnetic crushed containers by subjecting the containers to a magnetic field at the second end portion of the belt member whereby the non-magnetic containers are discharged from the belt

Abstract: A portable slag beneficiating plant comprises lengthwise adjacent first and second stage sizing devices with an intermediate magnetically operated separating unit arranged to deliver separated metallics to the second stage sizing device and to deliver the separated non-metallic slag to a conveyor for remote accumulation. The first and second stage sizing devices in the slag beneficiating plant and the magnetic separating unit which incorporates a feed conveyor belt and the disposal slag conveyor are individually operated by hydraulic motor subject to the control of individual valves and supplied from a common source of hydraulic fluid pressure enabling the individual sizing separating and conveying devices in the portable slag beneficiating plant to be operated at different speeds and capacities manually variable continuously to expedite rapid and efficient handling of large quantities of slag by the plant.

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: The device comprises a magnetic circuit having an air gap into which a mixture of magnetically attractable and magnetically non-attractable materials can be passed. The magnetic circuit includes a rotatably mounted separator roller comprised of magnetizable material, with the periphery of the roller being located adjacent to the air gap. The magnetic circuit further includes a permanent magnet arrangement located exteriorly of the separator roller and operative for establishing a flow of flux through the magnetic circuit and across the air gap and operates for magnetizing the separator roller by induction so that magnetically attractable material in a mixture entering the air gap will be segregated by the separator roller.