Abstract: An apparatus, system and method for fastening a screen has a screen with apertures sized to separate a first sized material from a second sized material. A box is positioned beneath the screen in a bracket extending along the screen. A protrusion extends from the box toward the screen. A triangular tensioning element secured along a length of the screen moves in a direction substantially perpendicular to the length of the screen in response to contact with the protrusion to seal the screen against the bracket and tension the screen.

Abstract: A forming device for producing moulded bodies by selectively hardening powder material to form connected regions, including a process chamber having a powder inlet and a powder outlet. A powder supply apparatus is connected to the powder inlet for providing powder material to the process chamber. A powder recovery apparatus is connected to the powder outlet for receiving and recycling excess powder material from the process chamber. The powder supply and powder recovery apparatuses form a subassembly designed as an interchangeable module. The interchangeable module includes input and output connection interfaces connection-compatible with connection interfaces of the powder inlet and powder outlet. Excess powder is fed from the process chamber through the powder outlet to the powder recovery apparatus via an input interface of the interchangeable module.

Abstract: A separating and cleaning mechanism for an agricultural combine may include: a return pan. The return pan includes a textured floor, two augers, and two motors coupled to the two augers, respectively, to selectively drive the motors in rotation independently. The textured floor may oscillate in a fore-and-aft direction to move grain toward the two augers.

Abstract: A cleaning system for an agricultural combine harvester includes a sieve having a periphery and an interference member located at the periphery. A chaffer frame carries the sieve, and includes a clamp with a pair of spring fingers positioned on either side of the interference member, thereby retaining the sieve within the chaffer frame.

Abstract: A sieve arrangement for an agricultural combine harvester includes a sieve frame for carrying a sieve, a side shaker arm, and a plurality of elongate structural members. The sieve frame includes a first side frame member and a second side frame member. The side shaker arm is connected with the first side frame member. Each structural member has a first end connected to the side shaker arm, and a second end connected with the second side frame member.

Abstract: A fluid distribution apparatus including a housing configured to receive a drilling material and direct the drilling material onto a separatory surface; and a damper coupled to the housing and configured to distribute a flow of the drilling material onto the separatory surface is disclosed.

Abstract: A vibratory apparatus includes a deck assembly with a longitudinal axis, an inlet end, and an outlet end. The deck assembly includes a plurality of deck sections each having a plurality of openings. Each deck section has upstream and downstream edges, the downstream edge of each successive deck section disposed closer longitudinally to the outlet end than the downstream edge of each preceding deck section. The upstream edge of each successive deck section is disposed closer longitudinally to the upstream edge of each preceding deck section than the downstream edge of the preceding deck section is disposed to the upstream edge of the preceding deck section, thereby defining an overlapping portion of the preceding deck section and a non-overlapping portion of the preceding deck section. The overlapping portion has larger openings than the non-overlapping portion for each preceding deck section.

Abstract: A sieve for a combine harvester that is moveable by a sieve drive assembly to perform a reciprocating sieve movement having a sieving stroke and a sieve throwing angle, wherein the sieve drive assembly has a rotary drive, having a rotatable output shaft, a transmission between the rotatable output shaft of the rotary drive and the sieve, an eccentric device, at least one transmission element, and a plurality of linkage pivots, wherein the eccentric device is an adjustable eccentric device in which the eccentricity is adjustable in order to adjust at least one of the sieving stroke and sieve throwing angle, the eccentric device comprising an input shaft, a flange, a gear, an output shaft, an annular gear, and an adjustment gear.

Abstract: A sieving device including a hollow cylindrical body, a filter disposed at a bottom portion of the hollow cylindrical body, and a blade configured to rotate in close proximity to the filter around a rotation axis thereof crossing the filter to thereby stir powder supplied to the hollow cylindrical body.

Abstract: The invention refers to a screening machine, in particular a star screening machine, comprising at least two driven shafts provided with stars and/or discs, the shafts being arranged in a screening plane parallel spaced to each other, wherein the stars and/or discs are provided on different shafts staggered or comb-like engaging with each other, with a hopper or filling area in which the material to be screened can be filled. Wherein on the side facing the filling area in a plane above the screening plane and spaced parallel from it two distribution devices are provided one after the other in the direction of screening or conveying for distributing the material to be screened on the screening plane.

Abstract: The present invention provides a vibratory screening apparatus (1) for use in removing solids from a liquid feed, and a basket (4) therefore. The apparatus comprises a static outer housing (2), and a floating basket vibratable by a vibrator device (10). The basket mounts a stack (7) of screen assemblies (8) provided with respective flow directing trays (9) for receiving filtrates from the screen assemblies. A flow distributor (15) divides the feed into at least first and a second feed streams and directs them onto respective screen assemblies, and receives from the flow directing trays, filtrates from respective screen assemblies.

Abstract: A system for pre-processing material into groups of different sizes comprising three levels. The second level is positioned above the third level and below the first level. The first level comprising a feeding mechanism, one or more first screens coupled to ducts and having apertures, blowers and vacuum ducts, dust collectors and a diverter. The screens transport the material along the first level in a first direction while a portion is sifted away before being diverted to the second level. The second level comprising one or more second screens coupled to ducts and having apertures, blowers and vacuum ducts and a takeaway device. The screens transport the material along the second level in a second direction different than the first while a portion is sifted away before falling to the third level. The third level comprising blowers and vacuum ducts and takeaway devices for receiving a portion of the material.

Abstract: The present invention provides a vibratory screening apparatus (1) for use in removing solids from a liquid feed, and a basket (4) therefore. The apparatus comprises a static outer housing (2), and a floating basket vibratable by a vibrator device (10). The basket mounts a stack (7) of screen assemblies (8) provided with respective flow directing trays (9) for receiving filtrates from the screen assemblies. A flow distributor (15) divides the feed into at least first and a second feed streams and directs them onto respective screen assemblies, and receives from the flow directing trays, filtrates from respective screen assemblies.

Abstract: An apparatus includes a separation deck free of stepwise changes in elevation between a first end and a second end, the separation deck comprising a plurality of spaces through which a constituent material may pass, a plurality of scrubbers disposed on the deck, the plurality of scrubbers having a first end disposed at a higher elevation than the deck in at least a first state, and a vibratory generator coupled to the deck. The mixed material moves over the deck and the scrubbers from the first end to the second end by the motion imparted by the vibratory generator. Components of the mixed material move relative to each other as the components move over the scrubbers, thereby causing the constituents material attached to the components of the mixed material to separate and pass through the spaces in the separation deck.

Abstract: A screening machine includes wall members, a screen assembly, and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape.

Abstract: The present invention describes an apparatus and a method of screening a material containing a solid and fluid, where the material is placed on an upper side of a screen element (3, 5), the material at least being acted on by vibrations produced by at least one acoustic sound source (11), wherein the at least one acoustic sound source (11) is arranged to transmit pressure waves to at least a portion of an underside of the screen element.

Abstract: A flow diverter and a vacuum blower for vibrating screen separator assembly. The flow diverter decelerates and increases the exposed surface of materials. The exhaust blower removes vapors from the materials.

Abstract: A flow diverter and a vacuum blower for vibrating screen separator assembly. The flow diverter decelerates and increases the exposed surface of materials. The exhaust blower removes vapors from the materials.

Abstract: A particle sizing and separating apparatus is disclosed. The apparatus includes a base and a frame that is movably connected to the base. A motor assembly is provided to vibrate the frame and at least two screens are connected to the frame. Means also are provided for feeding particles to each screen from two opposing sides of each screen and for evenly distributing the particles onto the screens. A pan is disposed beneath each screen to receive sized particles that pass through the screens and an outlet receives oversize particles that pass over the screens.

Abstract: A system for screening fluid-borne material from a fluid that carries particulate matter along with the material, e.g. for screening usable fibers in papermaking or tissue making white water that also contains waste material such as fines and ash. The system employs a flexible and pliable screen to which the fluid is applied. The screen is supported in a suspended manner from a frame. The fluid is directed onto an inside surface defined by the screen, and the location at which the fluid strikes the screen is varied so as to result in bending and flexing of the screen due to the flexibility and pliability of the screen material. In this manner, the configuration of the screen drainage passages is continuously altered, to provide a self-cleaning action that prevents the screen passages from plugging or blinding over. In one form, the screen is generally frustoconical, and the fluid is applied to the inside surface of the screen in a manner which results in rotation of the screen.

Abstract: The present invention provides an improved distributor including a conduit having an inlet end to receive incoming slurry and an outlet end to feed slurry onto a treatment apparatus such as a filter. A plurality of spaced apart diverter rows are arranged within the conduit between the inlet and outlet ends including a first diverter row comprising one adjustable diverter that is selectively adjustable to divide incoming slurry into either two slurry streams or into three slurry streams. A last diverter row is provided adjacent the outlet end, and the last row includes a plurality of spaced apart non-adjustable diverters make a last division of the slurry before it is discharged onto the filter.

Abstract: A vibratory separator including basket apparatus for holding screening apparatus, at least one upper screen apparatus in the basket, the at least one upper screen apparatus having a fluid exit end, at least one lower screen apparatus in the basket below the at least one upper screen apparatus, fluid flowable from the at least one upper screen apparatus down onto the at least one lower screen apparatus, flow diffusion apparatus mounted below the fluid exit end of the at least one upper screen apparatus and above the at least one lower screen apparatus, so that fluid flowing down from the at least one upper screen apparatus flows onto the flow diffusion apparatus and is diffused thereby, and vibrator apparatus for vibrating the basket and the screen apparatus therein.

Abstract: A system for recovering and recirculating usable fibers contained in papermaking white water. The system employs a flexible and pliable screen to which the papermaking white water is applied. The screen is supported in a suspended manner from a frame. The white water is directed onto an inside surface defined by the screen, and the location at which the white water strikes the screen is varied so as to result in bending and flexing of the screen. In this manner, the screen openings are self-cleaned, to prevent the screen from plugging due to material contained in the white water. In one form, the screen is generally frustoconical, and the white water is applied to the inside surface of the screen in a manner which results in rotation of the screen. The usable fibers are directed toward a discharge opening defined by the lower end of the frustoconical screen, and the waste water passes through the screen and is collected in a waste water collection tank.

Abstract: A spreading roll for spreading out a chip fleece for producing wood chip material or similar panels, includes two disk-shaped end pieces (3, 7), plural thin spokes (6), rods, pipes or cords arranged extending between the end pieces, and pipe-shaped loose sheaths (9, 10, 11, 12, 13) arranged on the spokes or the like for preventing the adhesion of fibrous materials or contaminants on the spokes or the like.

Abstract: A new and unique design use of directional and re-directional raised ribs on a solids control filtering screen, such as those used in drilling wells for hydrocarbons and other substances, in conjunction with a coordinated system of hanging such screens and directing and redirecting the flow of trapped solids over the surface of such screens, is disclosed for use with a vibratory shaker. The invention counteracts the natural tendency of trapped solids to migrate to and congregate in the lowest areas of a suspended screen and facilitates a dryer fluids discharge, as well as more effectively utilizing the available screening surface area, and therefore the invention reduces the incidence of screen wear and tearing and increases the flow rate conductants and drying capabilities through the screen.

Abstract: A sprinkling apparatus for sprinkling powder material onto food products. The apparatus includes a hopper for holding the powder material that is mounted above a conveyor. A drum is rotatably mounted within the hopper and stirs the powder material. The drum has a rotation surface provided with recesses thereon for receiving the powder material. A narrow passageway is provided between the rotation surface of the drum and an inner wall of the hopper. The narrow passageway presses the powder material against the rotation surface of the drum. A wiper is attached to an exit opening of the hopper and wipes the compressed powder material from the rotation surface of the drum. The wiped powder material leaves the exit opening of the hopper and is sprinkled on the food products.

Abstract: A grain sorting method and a device is provided which serves to continuously and quickly detect the appearance quality of the grains. The grain sorting device includes a feeding mechanism and a scattering mechanism where the grains are separately scattered over the surface of a conveying belt. The conveying belt serves to transfer the grains to a photographing section where they are photographed and inspected by an electric coupling device. Various parameters of the grains are calculated and the inspected results are compared with data stored in a computer. The grains are then sorted into different classifications and respectively collected by a discharging device.

Abstract: A gravity flow apparatus that scalps off the large pieces of foreign material from grain before processing or storage. The scalper consists of an upright housing with a grain inlet at the top. The grain enters the housing and drops onto a dead head slide. The dead head slide with a flexible baffle slows the momentum of the falling grain then spreads the grain out over the slide width before it enters the screen. The slide is sloped to suit the grain's natural angle of repose and is lined with an anti-friction material for mass flow. The grain enters the full width of the screen while a second baffle stops grain from freely pouring into the foreign material discharge. The screen is adjustable to allow the grain to spread on the screen at its natural angle of repose while trash is scalped off over the screen into the trash discharge.

Abstract: An agglomerator structure, used in conjunction with a sifting structure, is described to provide variable sized agglomerates and uniform agglomeration, using at least one cone, with apex pointing toward the feed flow, and an inverted cone with a screen below. The agglomerator structure is provided to enable convenient use in a sanitary environment, with the system including an agglomerator cone above the inverted cone, which defines a central opening for feeding the material to one or more screens. The system is primarily designed for use with a vibration-imparting structure to better enable use in a sanitary environment.

Abstract: In an apparatus for sieving, grading, sifting, filtering or sorting dry solid substances or solid substances in liquids having a sieve surface provided in a sieve frame and an ultrasound transducer (10) which is associated with the sieve surface (18) and by which oscillations can be fed to the sieve surface, associated with the ultrasound transducer (10) is at least one resonator (14) which bears against the sieve surface (18) and which is tuned to the resonance of the ultrasound transducer and which can be caused to oscillate thereby, in particular with flexural oscillations. The resonator (14) which in an embodiment is disposed in the center of the sieve surface (18) is to be provided with resonance-transmitting elements (16) which project finger-like from the resonator on the sieve surface (18) and which project radially from same in the form of bar resonators.

Abstract: A vibrating screen unit for dewatering dredged material. The vibrating screen unit includes a frame and a top screen deck, a middle screen deck and a bottom screen deck. The middle screen deck includes a splitter which extends across the width of the frame and comprises alternating closed channels and screen rows which alternate across the width of the frame.

Abstract: A screening apparatus and a method are provided for separating mixed material into coarse materials and finer materials. After dumping mixed materials with a loader into a bucket located in an upper section of a screening apparatus, a movable wall moving at a predetermined speed along the bottom of the bucket pushes the mixed materials into a bottom opening of the bucket over a first material separating screen defining a slope with reference to the ground and subjected to vibrations of a shaking device. The apparatus may further comprise parallel spaced bars for primary removing of large debris.

Abstract: An improved strainer device has a screen which receives a solid/mixture from a feed container for separation. To insure that an uneven flow of the mixture over the screen does not occur due to, for example, a non-level mounting, inlet rushing or turbulence, a weir structure is provided which raises the water mixture level above the screen by a predetermined height.

Abstract: An apparatus for separating fiber and shiv includes a pinned metering rotor and a pinned separation rotor adapted to rotate with surfaces moving in opposite directions and having fixed bearing locations, the final separation rotor being adjacent a shroud in which are a plurality of slots, and a pinned doffer rotor rotatable in either direction and having a bearing location which is adjustable relative to the separation rotor. A shell feed structure at the intersection of the metering rotor and the separation rotor has a surface adjacent the separation rotor substantially parallel to the surface of that rotor, and a surface adjacent the metering rotor having a curvature greater than that of the metering motor.

Abstract: A vibratory screen separator system having a moving manifold, angled feed nozzles, and angled spray nozzles. The spray nozzles and the feed nozzles are attached to the bottom of the manifold, and the manifold moves back and forth over the screen. The feed nozzles evenly distribute the material to be separated across the screen. The spray nozzles clean the screen before each pass by the feed nozzles.

Abstract: An air concentrator for dry separation of gold and other heavy minerals from alluvial deposits comprises a housing having a number of open-topped chambers arranged in a ring-like configuration and surmounted by a screen having rings thereon forming annular arms radiating from a hub sweeps over the screen beds. Air under pressure is fed sequentially and cyclically to the chambers by a rotary valve located centrally of the ring of chambers. The deposit is fed over the hub and is swept outwardly over the beds on the screen by the wiper arms, where it is fluidized by pulses of air from the subjacent chambers enabling particles of gold and heavy minerals to settle down to the bottom of the beds by gravitational stratification, and if sufficiently small, pass through the screen for collection through spigots in the bottom of the chambers.

Abstract: Apparatus and method for cleaning the oil off of oil covered parts by the employment of oil absorbing particulate such as ground corncob. The oil covered parts and oil absorbing particulate are mixed together in a tumbler for a period sufficient to bring each of the parts into contact with the oil absorbing particulate. Much of the particulate adheres to the oil covered parts. Thus, following mixing, the particulate adhered parts are subjected to a series of vibrating, impinging, tumbling, and air blowing actions which remove the adhering particulate from the parts and direct the oil absorbed particulate and cleaned parts into two separate, respective vessels.

Abstract: The invention relates to a method for working up unused concrete mix and/or mortar whereby the unused concrete mix and/or mortar is gradually supplied to and distributed over a sieve during spraying of the unused concrete mix and/or mortar with water in such a way, that grit or the like which is in the unused concrete mix and/or mortar is cleaned by rinsing and remains on the sieve in order to be discharged therefrom. The material passing through the sieve and consisting of a mixture of sand, cement and water, is supplied to a separation device wherein the sand is separated from said mixture. The remaining mixture of water and cement is returned at least partly from the discharge of said separation device towards the supply side of the separation device.

Abstract: Disclosed is a vibratory sieve for separation of fibrous materials from materials containing them, the vibratory sieve comprising a sieve body and a mechanism for imparting vibration to the sieve, the sieve body including a screen to be vibrated by the mechanism, the sieve being adapted to convey a mixture of water and the materials containing the fibrous materials onto the screen through meshes of which finer particles and water are passed by the vibration of the screen, leaving the fibrous materials on the screen, the sieve being characterized in that the sieve is provided with an annular member which is movable on the screen surface by the vibration of the screen and whose movement is confined by an inlet member in such a way that the mixture of water and the materials containing the fibrous materials is placed inside the annular member.

Abstract: An improved apparatus for cleaning, distributing and aereating grain is mounted in a storage structure and includes a frustro-conical screen device secured symetrically to an imperforate funnel-shaped member. A fan assembly is secured to the funnel-shaped body and is provided with a conduit which extends to the exterior. An adjustable control spout permits uniform distribution of grain upon the screen device where the fine material passes through the apertures in the screen while the grain is discharged into the storage structure. After the cleaning and distribution of steps are completed, the apparatus will then be inverted to position the screen device in the concave crater of the grain pile while positioning the funnel shaped body and fan assembly uppermost. The fan assembly will be energized to aereate the grain and present damage due to mold or fungus.

Abstract: A method and apparatus for preparing an ore sample and recovering water from a drilling rig is disclosed. Ore sample and water recovery apparatus (10) includes a slurry inlet (12) for receiving slurry from a drilling rig. Slurry is directed from slurry inlet (12) to a diffuser chamer (13) which includes an abrasion-resistant, rubbercoated diffuser (14) and a slurry converger (16). Slurry is then directed through a first vibrating sieve screen (21) which separates large particles from the slurry and directs them directly into sample tank (58). The slurry is passed on to a second vibrating sieve screen (22) which screens out progressively smaller sized particles and directs them into sample tank (58). The reminaing slurry is directed into a slurry basin (26) and infused into a hydraulic carrier medium of water using jet pump infuser (34). The slurry is then directed into cyclone separator (48) which extracts the remaining particles from the slurry and directs them into sample tank (58).

Abstract: The invention relates to a straining apparatus for the separating of solid-liquid mixtures with a downwardly tapering straining basket, the basket inside wall of which has an inclination (.alpha.) increasing from top to bottom, the charging of material to be strained being carried out approximately tangentially at the upper end of the straining basket and the material to be strained flowing downwards helically with radii becoming narrower, the straining basket wall forming at least one helical, inwardly open channel, which is bounded at top and bottom by helical side walls, between which the channel base having straining openings is arranged, the radius of which base decreases from top to bottom and which is inclined with respect to the vertical axis by the angle (.alpha.) in such a way that, in feeding, the inclination is at first small and then increases constantly.

Abstract: An apparatus for separating different phases of dry material, such as plant fibers, from each other includes a rotating hollow body on an inclined axis with an inner perforated wall, an outer perforated wall, and partitions at spaced intervals within the body to define compartments. The compartments are connected by central openings in the partitions, and each compartment is provided with longitudinally extending baffles. The outer perforated wall is divided into longitudinal sections by a gap. The material is fed into an upper input end and the different phases are separated as it moves within the downwardly inclined body toward an outlet end. The separated phases are carried away by conveyors.

Abstract: A rotary grid-structure bucket for separating fine and coarse constituents of sizable materials or products, has a bucket (3) with a separating part (9) located between its back (7) and its front (8) and sides provided with apertures to allow fine constituents (4) of the sizable materials or products (6) to pass therethrough. To make it possible for the separating part (9) to be exploited in its entire length the sides of the separating part diverge symmetrically with respect to the axis of rotation (R) in a forward direction. Ahead of the separating part (9) the bucket has a front part (25) whose sides diverge around the axis of rotation (R) in a forward direction in a lesser degree in relation to the axis of rotation (R) than the sides of the separating part (9) or extend in parallel with the axis of rotation (R) or converge in relation to the axis of rotation (R).

Abstract: Vertical screening device (1) having at least one cylinder screen (2) and connectible with its lower end portion (8) to a similar screening device or a drive unit and, with its upper end portion (7), to a similar screening device or a distributor device. The screening device is adapted, together with the other devices connected to it, to be imparted a movement of rotation. The invention is charaterized in that the screening device (1) comprises a bearing device (3) for supporting a feed screw (4) cooperating with the cylinder screen (2). The bearing device (3) is disposed within the cylinder screen (2) and fixedly connected thereto. The feed screw (4) is connected through a link (5) extending outside the periphery of the cylinder screen (2), to a fixed point (6) provided outside the screening device (1) for holding the feed screw (4) stationary.

Abstract: A feed prestratification attachment for classifying materials is configured to be secured to a vibrating screen unit so as to encourage stratification and more even distribution of the incoming feed material. The attachment includes a pair of side adapter plates separated by a horizontal mounting bar and a plurality of elongate rods affixed at one end to the mounting bar, the rods dimensioned so that the vibratory movement of the vibrating screen causes the rods to oscillate, thus permitting the rapid passage of undersize particles through the rods and the presentation of those particles to the screen, and enhancing the stratification of near-size and oversize particles.

Abstract: A material classifying apparatus for separating material into at least overs and fines. The apparatus includes a material receiving housing supporting one or more vertically spaced separator screens. When more than one separator screen is used, the lowermost one of the screens has a finer mesh than the uppermost one of the screens. The apparatus will then further include a discharge opening associated with the periphery of the uppermost one of the screens for discharging overs from the material receiving housing, a discharge opening associated with the periphery of the lowermost one of the screens for discharging product from the material receiving housing, and a discharge opening disposed below the lowermost one of the screens for discharging fines from the material receiving housing.

Abstract: A screening apparatus of the multi-deck type. The feed inlet space of the screening machine comprises one or more distributing and segregating devices, integrated with the movement of the screening apparatus.

Abstract: A portable, collapsible grain cleaner and spreader apparatus is used to evenly spread and clean grain or similar crops as the grain is introduced into a storage structure. The grain cleaner and spreader apparatus comprises a vertically disposed grain receiver which distributes grain to be dried over a frusto-conically shaped perforated screen device. A funnel-shaped body engages the perforated screen device and has a fan assembly connected thereto. Grain is evenly distributed over the screen device into the storage structure. Debris, chaff, bees wings, dirt, and weevils pass through the screen device, funnel-shaped member, and fan assembly and are discharged exteriorly of the storage structure through a conduit.

Abstract: The separation of a first solid component from a mixture thereof with a liquid and a second solid component which is of smaller average particle size than the first solid component, the first and second solid components being in suspension in the liquid and with the percentage by mass of the second solid component being substantially greater than that of the first solid component, by means of a travelling endless cloth. The cloth passes through an operative separating region in a horizontal manner. The mixture is fed onto substantially the entire operative separating region from a feed box that has a floor with apertures therein; the floor being located above the cloth. The liquid and second solid component pass through the cloth, to be collected by a trough. The first solid component remains on the cloth and is subsequently removed and collected.