Abstract: A device for sorting particulate material includes a main conveyor belt, a separation screen, a graded material conveyor, and an oversize material conveyor. The separation screen is configured to separate the material into a first portion and a second portion with a larger average particle diameter than the first portion. The graded material conveyor is positioned below the separation screen to receive the first portion of the material, and the oversize material conveyor is positioned at an end of the separation screen to receive the second portion of the material.

Abstract: A compact mobile variable angle vibrating screen with an overhead conveyor with an inclined bottom feed support section, an independently positionable intermediate support section, and an overhead head support section where the independently positionable intermediate support section can be relocated to a new position in response to a translation of the bottom feed support structure while maintaining an angular orientation which is half of the angle of inclination of the bottom feed structure.

Abstract: A mobile collapsible screen and cone crusher combination where the screen is pivoted forward and downward for transport and a rubber hopper is coupled to the fines conveyor so as to permit a hinged connection and a sliding connection between the flexible hopper and the fines conveyor. A plurality of flexible matter edge plates are used at the rear of the flexible hopper to facilitate proper compression and expansion of the flexible hopper. A selectable maintenance catch is used to allow the screen to be elevated to an intermediate height for maintenance.

Abstract: A screening apparatus for separating components of a material by vibratory separation which, in certain aspects, includes a vibratable box connected via vibration isolators within a container, the box including screening apparatus thereon or the vibratory separator having replaceable screening cartridges within a container. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).

Abstract: A mobile screening machine with a frame on tracks, having a hopper and a main conveyor mounted to a frame. The main conveyor conveys particulate matter from the hopper to a screening device positioned beneath the upper end of the main conveyor. The particulate is screened into three grades of coarseness, with the coarsest falling into a chute, the middle coarseness falling onto one lateral conveyor and the finest falling onto an underscreen conveyor, which preferably is driven downhill onto another lateral conveyor. The tracks permit the machine to be driven around the work site and onto and off of a trailer, and the entire machine can be remotely controlled. The downhill conveyor permits loading of the hopper from both sides of the frame.

Abstract: A separator 10 is disclosed and claimed. The separator includes a continuous separating assembly 20 following a trajectory having a top run A and a return run B. The assembly includes a train of articulated pan assemblies 22.1 to 22.n. Each pan assembly includes first and second back-to-back pans 22.11 and 22.12 separated by a discrete mesh segment 60.1. In use, the separator is charged with a mixture including a liquid, a first solid particulate component and a second solid particulate component of which the particles are bigger than the first particulate component, both at the start 26 of the top run and at the start 28 of the return run. The first particulate component is received in sumps 30,32 and 34,36 and the second particulate component is collected in collection regions 42 and 46.

Abstract: A transportable trommel assembly is provided with a frame, a cylindrical trommel screen, having an infeed end and a discharge end rotatably mounted to the frame, and conveyors for carrying away sized material from the trommel screen. An infeed conveyor is movably connected to the frame and positionable to an operating position for infeeding material into the infeed end of the trommel screen and to a transport position where it is held within the infeed end of the trommel screen.

Abstract: A screening plant having a feed plate located between a grizzly grate and a conveyor driven by a hydraulic motor. A first source of fluid supplies hydraulic fluid to a first cylinder to open the feed plate and to a second hydraulic cylinder to swing the grizzly grate. A second source of fluid provides hydraulic fluid to the hydraulic motor driving the conveyor and to a sequence valve at a pressure determined by the load on the motor. The sequence valve stops the flow of fluid to the second cylinder stopping the feed plate when the pressure of fluid from the second source of fluid reaches a predetermined value so that the conveyor will not be overloaded. The feed plate has to open at a preset speed and is started and stopped by the discharging conveyor, as the conveyor meets its capacity. When the feed plate reaches full open position, it activates a control that lifts the grizzly grate and dumps off large pieces of material. The grizzly grate is also controlled by the discharge conveyor.

Abstract: A manure separating apparatus includes a trough with angularly bottom surfaces that converge downwardly to a discharge opening. A drain screen is located above the bottom trough surfaces and includes somewhat similarly angled downward converging infeed and discharge surfaces. The infeed section of the drain screen is approximately twice as long and at a smaller angle to the horizontal than the discharge screen section. A manure/liquid slurry may be introduced at a top infeed end of the screen and moved downwardly along the infeed section of the screen by a paddle conveyor. Separation of solids occurs primarily along the infeed screen section. The slurry is then moved angularly upwardly along the discharge section of the screen for final dewatering. The discharge section is spaced above the trough bottom to avoid liquids on the trough bottom below to facilitate dewatering of the solids before discharge.

Abstract: A vertical set of sieves receives the particulate material from a vibrating trough conveyor above the set and is vibrated by an agitator on the machine frame. The sieves are spread apart and then tilted to dump the collected particles into respective funnels. The set can then be swung back and contracted for the the next stage. The funnels are connected to collectors which are automatically weighted.

Abstract: An apparatus for purifying paper pulp in the liquid state by screening. The apparatus comprising a cylindrical fixed screen disposed coaxially with a rotor within a housing. The rotor has longitudinal blades which, in section transverse to the rotor axis, have the general shape of an angle one side of the angle being substantially radial to the rotor and a second side inclined thereto. This apparatus is capable of both centripetal and centrifugal operation, and at concentrations of from 3 to 4%.