Abstract: A method of peeling tubers includes providing a peeler device defining a cavity surrounded by a peeling mechanism, inputting tubers to be peeled into the cavity, directing electromagnetic radiation from an illumination device into the cavity, detecting electromagnetic radiation reflected into lens of a camera from tubers located in the cavity during a peeling operation by the peeling mechanism, and operating the peeler device based on the reflected electromagnetic radiation detected by the camera. Also disclosed is an apparatus for carrying out the method.

Abstract: A mobile multi-deck screening apparatus receives material for screening with a feeder of the apparatus. A first screen deck receives and screens material from the feed. A second screen deck receives an undersize fraction of the first screen deck. First and second discharge conveyors output oversize fractions of the first and second screen decks. The first and second discharge conveyors pivot to operate in directions selected between a first direction and a second direction. The first direction is forward. The second direction differs from the first direction. One or both of the first and second discharge conveyors is/are pivotable from one side to an opposite side of the apparatus. Oversize fraction material of the first screen deck and oversize fraction material of the second screen deck are selectively discharged in a common pile.

Abstract: A screening apparatus comprising a body, a drive system for imparting vibrations to the body, and screen media that is coupled to the body by a resilient coupling mechanism that allows oscillatory movement of the screen media with respect to the body. In response to vibration of the body, the resilient coupling mechanism causes the screen media to oscillate in a manner that is amplified with respect to the vibration of the body. The amplification may depend on the frequency of the vibrations of the body and/or on the mass of any material gathered on the screen media.

Abstract: A modular nut cleaning plant comprises a nut sizer and a stick remover mounted to the nut sizer. A vacuum unit is mounted to the stick remover. A nut product stream will pass on the stick remover through the vacuum unit which will vacuum light debris from the nut product stream. The nut product stream moves on a chain on the stick remover. Large debris and sticks that do not fall through openings in the chain will pass into a debris conveyor. Nuts and debris that fall through the openings in the chain will be delivered to the nut sizer. The nut sizer will rotate and tumble nuts and debris in the nut product stream. Nuts of an undesirable size and debris will pass into a debris conveyor. Nuts of a desired size will pass through the nut sizer into a chute or other conveyance to be delivered to further nut processing apparatus.

Abstract: In one example, an article for distributing powder includes a plate having holes therein through which a powder may pass from a first side of the plate to a second side of the plate opposite the first side and multiple ramps each intersecting the plate at one or multiple holes and sloping away from the first side of the plate in a first direction at an angle less than 90°.

Abstract: A filtration system includes a filtration device having filter slats positioned in a linear array and connected via a supporting structure, the filter slats being parallel to one another and being fixed at an angle relative to the linear array; and pores created by the filter slats; a fluid flow chamber to hold the filtration device such that fluid passes through the filtration device, the fluid flow chamber having a filtration channel with an inlet to receive fluid and an expulsion channel in fluid communication with the filtration channel; a filtrate channel in fluid communication with the filtration channel such that fluid passes through the filtration device between the filtration channel and the filtrate channel, the filtrate channel having a filtrate channel outlet; one or more pressure modulating structures in fluid communication with the fluid flow chamber such that the pressure modulating structure modifies pressure in the fluid flow chamber.

Abstract: A high strength sieve which is lightweight and durable without having to add springs, and without requiring a high level of force to effect adjustment of the louvers. The high strength sieve utilizes hollow tubes to support the louvers. Providing hollow tubes (i.e., rather than solid wires) allows for larger diameter holes to be used in the frame. This provides for increased bearing surfaces, as well as provides for better tolerances. This reduces the movement of the tubes within the holes. Preferably, the tubes are mounted in the frame through holes which are extruded, thereby providing for increased bearing surfaces and a tighter fit. The extruded holes also provide a natural lead-in for the insertion of the tubes (i.e., during assembly of the sieve). Alternatively, solid wires can be provided extending through the extruded holes instead of hollow tubes.

Abstract: A stone sieve assembly includes a cutting blade, a back plate, and a plurality of bars. The plurality of bars are spaced apart from one another and extend between the cutting blade and the back plate. The plurality of bars have a leading section positioned proximate the cutting blade and a trailing section positioned proximate the back plate. The trailing section tapers inwardly as it approaches the back plate.

Abstract: A grizzly screen member assembly with a replaceable tip end. The grizzly screen member assembly comprises an elongate base member and a replaceable tip member coupled removably coupled to the replaceable tip member. The elongate base member may be coupled to a panel and assembled into a grizzly feeder system or coupled to the grizzly feeder system itself.

Abstract: The invention relates to a device for sorting particulate materials of different grain size that can be part of a construction machine or digger's scoop. The device for sorting has a plurality of helical rollers, each exhibiting at least one helix, wherein each helical roller rotates about a rotary axis of its own, at least two adjacent helical rollers exhibit the same direction of rotation, and the rotary axes of at least three helical rollers are not arranged in a common plane. At least some of the helical rollers are held and rotatably mounted exclusively at one end.

Abstract: In some implementations, a banded discharge removes or rejects comestibles from a production line when the comestibles have a diameter less than a minimum value. The banded discharge may include two or more support members and each pair of adjacent support members may be spaced apart a distance W. When a comestible with a diameter about the same as or less than the distance W moves onto the banded discharge, the banded discharge may remove the comestible from the production line. For example, the comestible may fall between two adjacent support members.

Abstract: A liquid separating drum (1) for use with a separator (3) in order to separate liquid material (11a) from solid material (11b) in a mixture material (11) to be processed. The liquid separating drum (1) includes an elongated main body (5) having a longitudinal axis (7), the main body (5) being removably mountable about a base frame (9) of the separator (3) so as to be rotatable with respect thereto, the main body (5) having an inlet (5a) for receiving the mixture material (11) to be processed, and an outlet (5b) for releasing processed material.

Abstract: A molded polyurethane vibratory screen including a body having opposite side edge portions, upper and lower edge portions, an upper surface and a lower surface, first members extending between the side edge portions and the second members extending between the lower edge portion and the upper edge portion, third members substantially parallel and extending transversely between the side edge portions and having multiple first members therebetween, the fourth members substantially parallel and extending transversely between the lower edge portion and the upper edge portion and having multiple second members therebetween, reinforcement members molded integrally with the third and fourth members.

Abstract: A screen panel with improved apertures for mining and quarrying industries adapted to be mounted on a screen deck, including a screening surface made up of materials such as herein described formed on a reinforcing frame, said screen panel having suitably designed apertures for allowing materials to pass through, said apertures having resilient ribs (5) with protrusions (4) on both sides configured with respect to each other such that adequate open space exists, whereby clogging of materials pursuant to screening operations are substantially reduced.

Abstract: A screening panel and screening arrangement are provided for screening materials. The screening panel includes a peripheral frame having a first side frame member and an opposing second side frame member defining an opening therebetween. Further, the screening panel includes a plurality of spaced elongated screening ribs defining a screening surface of the screening panel. The screening panel includes a one or more sets of screening ribs that extend continuously across at least a portion of the screening surface of the screening panel in a non-parallel direction relative to a flow direction of material in the screening arrangement.

Abstract: An impact screen cloth for use in a screening device for screening out oversize objects in a material flowing in a direction is provided, comprising a metal plate having a perimeter and comprising a plurality of openings therethrough and forming a grid having longitudinal ligaments substantially parallel to the direction of the material flow and transverse ligaments substantially perpendicular to the direction of the material flow; and a number of longitudinal wear bars positioned on an equal number of longitudinal ligaments to cover a substantial portion of the number of longitudinal ligaments without substantially interfering with the openings.

Abstract: The invention relates to a screen frame adapted for use in a shaker to separate solids from a liquid/solid mixture and to which woven wire mesh is to be attached, comprising an outer perimeter and a plurality of ribs extending between opposing regions of the perimeter, the ribs defining an upper horizontal face to which a screen is to be attached, wherein at least one rib extends downwardly from the upper face at an angle off set to vertical, and to a shaker comprising at least one such screen frame.

Abstract: An adjustable spring grizzly bar material separator provided and includes a plurality of flexible tines, a cassette, wherein the plurality of flexible tines are each coupled on an end to the cassette, and a first set of spacers removably coupled within the cassette between the plurality of tines, wherein the first set of spacers separate the plurality of flexible tines a first predetermined distance to set the size of material that is to be separated from an amount of aggregate flowing over the tines. The material separator may also include a second set of spacers; the first set of spacers is replaceable with the second set of spacers, wherein the second set of spacers separates the plurality of flexible tines a second predetermined distance, the second predetermined distance being different from the first predetermined distance.

Abstract: The present disclosure is generally directed to vibratory separators that are used for processing drilling fluid, and in particular, vibratory separators that utilize electro-magnetic clamping apparatuses for attaching screen assemblies to a basket assembly. In one exemplary embodiment, an illustrative vibratory separator is disclosed which includes, among other things, a basket assembly having at least one screen support, and at least one screen assembly that is adapted to be releasably secured to the at least one screen support. Additionally, the disclosed vibratory separator also includes an electro-magnetic clamp apparatus that is adapted to releasably secure the at least one screen assembly to the at least one screen support when the electro-magnetic clamp apparatus is energized to a magnetized state, and to release the at least one screen assembly from the at least one screen support when the electro-magnetic clamp apparatus is de-energized to an un-magnetized state.

Abstract: A frame over which woven wire mesh is to be stretched and secured to form a sieving screen and which can be used to screen solids from drilling mud recovered from down-hole when drilling for oil or gas. The frame is a rectilinear moulded plastics frame having edge regions by which it is secured in place in a shaker. Within the frame is a plurality of rectilinear windows formed by an orthogonal array of intersecting ribs also of moulded plastics material. Some of the ribs are internally reinforced by rigid metal members which extend orthogonally between hollow box-section members which define a sub-frame for reinforcing the four edge regions of the frame. The orthogonal members are secured at their ends to the sub-frame. The ends of the sub-frame members are joined at the four corners of the sub-frame. In this way not are only the edge regions of the frame reinforced internally but so also are some of the orthogonally intersecting ribs, so as thereby to produce a rigid frame for the screen.

Abstract: A screen structure which is unusually effective at removing stickies from recyclable fiber but is tolerant of substantial swings in throughput which result in variations in the flow velocity through the screen-slot velocity. One example of the screen structure is created by forming a very large number of similarly shaped vanes then locking them into a ring structure to form a cylindrical screen basket but equivalent surface configurations can also be formed into sheet stock.

Abstract: The invention relates to a strainer apparatus, such as a strainer basket, a strainer cylinder and the like, wherein slits or gaps are formed between strainer bars (6). The base of the strainer bars is received in receiving recesses (8) adapted to the dimensions of the base of the bars, in a support element (3). The support element can also be a reinforcing or strengthening element, and the strainer bars (6) are permanently fixed to the respective support element (3). At least one pocket (10, 11) that can be filled with a filler material is provided between each support element (3) and each associated strainer bar (6), at least on the edge region (7) of the respective receiving recess (8).

Abstract: A screen panel retainer assembly, that is utilizable with a vibrating separatory machine, is configured with a plurality of discrete, mushroom-shaped screen panel retainers. Each such retainer has a retainer head that is generally in the shape of a portion of a cylinder, such as a right cylinder. A shank connects each such retainer head to a suitable retainer bar. The retainer bar can be adapted to be attached either to screen stringer tubes of the vibrating separatory machine, or to underlying cross tubes and end cross tubes. The screen panels, which are to be secured to the vibrating separatory machine, have complementary shaped mushroom-shaped screen panel retainer head receiving chambers in their side surfaces. Two such panel edges define a whole chamber. The retainer heads are metal whereas the screen panel edges are resilient. The mushroom-shaped heads securely snap into their complementary chambers yet can be removed from those chambers when the screen panels have to be replaced.

Abstract: A rider bar (5) is essentially made of elastomeric material. The rider bar (5) is intended for a surface of a screen cloth (1) or a wear-resistant lining over which pieces or particles of material are intended to move. The rider bar (5) comprises a wear-resistant element (6).

Abstract: The invention concerns screen panels of the kind used in vibratory screening operations. According to the invention, the screen panels (10) include recycled polyurethane, typically that recovered from worn screen panels. In one particular embodiment in which the panel has an upper, perforated screening section (16.1) for performing a screening action and an operatively lower section (16.2) beneath the screening section, the upper section is of molded, virgin polyurethane and the lower section comprises a reinforcing frame (12) and recycled polyurethane molded about the reinforcing frame. The invention envisages the use of blends of virgin and recycled polyurethane as well as method of manufacturing screen panels and methods of handling worn screen panels.

Abstract: A screening module (10) for a screening assembly includes a panel member (12) defining a plurality of screening apertures; and a support arrangement (16) with which the panel member (12) is fast. The support arrangement (16) includes a plurality of strengthening arrays (22) arranged, in use, beneath the panel member (12), each strengthening array (22) comprising a skirt portion (24) bounding an area on a bottom surface of the panel member (12).

Abstract: A screen for a vibratory separator, the screen including at least two layers of screening material, including a first layer and a second layer, the first layer made of a plurality of intersecting first wires, the second layer made of a plurality of intersecting second wires, the first wires including first shute wires and first warp wires, the second wires including second shute wires and second warp wires, certain of the first warp wires aligned with a second warp wire, and/or certain of the first shute wires aligned with a second shute wire. 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 CFR 1.72(b).

Abstract: A slot sieve comprises a large number of sieve profiles arranged next to one another, which form a respective sieve slot between their longitudinal sides, and at least two, preferably a plurality of carrier profiles, which extend transverse to the sieve profiles and on which the sieve profiles are fastened. The carrier profiles are arranged in receiving grooves, which respectively align with one another, in the sieve profiles in such a way that the outsides of the carrier profiles remote from the sieve profiles are located in a plane with the slot sides or lower sides remote therefrom of the sieve profiles.

Abstract: A single vane slat design for use in a sieve or chaffer of a harvester combine. The single vane slat has a weld pocket, preferably on its bottom surface, for receiving a wire on a frame. The single vane slat may be formed of a 26 gage material, and may be attached to the wire using two small welds. The weld material is configured to flow into the weld pocket upon being welded, and achieve direct and incidental contact between the wire and the slat. The weld pocket of the slat is configured such that the slat is self-fixturing to the wire, which lends to the ability to weld the slats to the wires while fixed in the frame. This facilitates accommodating a large number of frame types and sizes.

Abstract: A shaker screen including a screen frame and an inflatable sealing element integrally formed with the screen frame is disclosed. A screen sealing system including a plurality of shaker screens, each shaker screen having a screen frame and an inflatable sealing element integrally formed with the screen frame, wherein the inflatable sealing elements of each shaker screen are in fluid communication is also disclosed. A method of sealing a composite screen including assembling at least one shaker screen within a shale shaker and inflating at least one inflatable sealing element disposed along at least a portion of a perimeter of the screen frame, the portions selected from a group consisting of a top surface, a bottom surface, and an outer surface is disclosed.

Abstract: This invention aims to enhance efficiency of a sieve and to greatly improve productivity of a sifting operation. There is provided a sieve comprising a metal plate including long holes, wherein the long holes are plurally provided such that lines extending in length directions thereof cross one another.

Abstract: A reconfigurable grizzly-type system providing improved field processing of ore, rock, and soil. The system provides reconfigurable screening of rocks, rubble, gravel, and debris from soil based on material size. The system also provides improvements related to efficient storage and transportation.

Abstract: The present invention provides a screen for separating materials according to particle size. The screen has a body, a plurality of fingers, and a plurality of rods. The fingers may be integrally formed with the body. The rods are supported within the body and extend within the fingers to provide structural stability.

Abstract: A method and apparatus for separating material, particularly excavated material is presented. The method and apparatus utilize a releasable and interchangeable screen assembly which is positioned on top of a frame having a slanted grate. The screen assembly includes bar members which traverse the top of the screen and inverted hook members attached to a top surface of the bar members to enable an equipment bucket to engage the inverted hook members in order to lift and move the screen assembly.

Abstract: A method and apparatus for altering the reflectivity of a screen when light is supplied to a portion of the screen is disclosed. The orientation and shape of wires disposed on at least one bar of the screen is controlled to alter the reflectivity of the screen. Also provided is a method and apparatus for supporting a screen on a surface such as a wall, including placing slots within the screen for mating with connecting members mounted on a support frame connected to the surface.

Abstract: A method is provided for manufacturing a screen cylinder, as well as a screen cylinder with screen wires in the axial direction of the screen cylinder set at predefined intervals into a cylindrical screen surface and fastened to support rods, with end rings are arranged at the ends of the screen cylinder. At least one end ring is mounted at one end of the screen cylinder in such a manner that the end ring is arranged to at least one support rod at the ends of the screen wires or closest to the ends of the screen wires without fastening the end ring to the screen wires. When installing the end ring, a shrink fit is formed between the end ring and support rod, wherein the end ring is arranged to press the support rod substantially perpendicular to the axis of the screen cylinder.

Abstract: A rider bar (5) is essentially made of elastomeric material. The rider bar (5) is intended for a surface of a screen cloth (1) or a wear-resistant lining over which pieces or particles of material are intended to move. The rider bar (5) comprises a wear-resistant element (6).

Abstract: A method and apparatus for altering the reflectivity of a screen when light is supplied to a portion of the screen is disclosed. The orientation and shape of wires disposed on at least one bar of the screen is controlled to alter the reflectivity of the screen. Also provided is a method and apparatus for supporting a screen on a surface such as a wall, including placing slots within the screen for mating with connecting members mounted on a support frame connected to the surface.

Abstract: A method and apparatus for separating material are described. The material separator may include a frame comprising a base supporting a slanted grate deck and at least one reducer grate deck removably and pivotally coupled to the slanted grate deck. The method may include: removably and pivotally placing a removable reducer grate deck on a slanted grate deck; depositing excavated material on the removable reducer grate deck such that the material is separated by passing through both the removable reducer grate deck and the slanted grate deck; and releasing clogged material between grate bar members of the reducer grate deck and the slanted grate deck by engaging at least one internal bumper of the reducer grate deck with the moving equipment to push a free, non-pivoting end of the reducer grate deck upwards to release the clogged material.

Abstract: A vibratory apparatus for separating a liquid from a liquid-laden solid material. The apparatus includes an inclined trough having a base with a first end and a second elevated with respect to the first end. A deck is attached to the trough base, the deck defining support points positioned above the base spaced from one another by a distance sufficient to support the solid material above the deck, and passages located between the support points to allow liquid to flow to the deck. A vibratory drive is attached to the trough and oriented impart a conveying motion toward the trough second end. Solid material deposited onto the deck is advanced toward the second end by the conveying motion while the liquid flows along the trough base toward the first end under gravity.

Abstract: A method of separating a liquid from a liquid-laden solid material includes providing a trough having a deck defining a support surface with passages extending through the support surface. The liquid-laden solid material is deposited onto the support surface so that the liquid-laden solid material is supported by the support surface. A vibratory force is applied to the deck to separate a substantial portion of the liquid from the liquid-laden solid material. The liquid separated from the liquid-laden solid material is directed under gravity force through the passages extending through the support surface. The solid material is conveyed along the support surface by the vibratory force to a solids discharge point.

Abstract: A the operation of pulp screening apparatus may be improved by employing a multi element foil having a leading foil section and a trailing foil section spaced from and trailing leading section so that adjacent surfaces of the sections one formed by a portion of a pressure side of the leading section and the other by the leading end of the trailing foil section define opposed walls of a passage for fluid directing fluid flow from the pressure side of the leading foil section to a cambered low pressure side of the trailing section. The angle of attack (?) of the complete multi element foil is set to be significantly less than the angle of attack (?) of the trailing foil section to increase the negative pressure pulse generated by the trailing section and thereby improve operation of the screening device.

Abstract: A method and apparatus for separating material, particularly excavated material is presented. The method and apparatus utilize a releasable and interchangeable screen assembly which is positioned on top of a frame having a slanted grate. The screen assembly includes bar members which traverse the top of the screen and inverted hook members attached to a top surface of the bar members to enable an equipment bucket to engage the inverted hook members in order to lift and move the screen assembly.

Abstract: A method and apparatus for altering the reflectivity of a screen when light is supplied to a portion of the screen is disclosed. The orientation and shape of wires disposed on at least one bar of the screen is controlled to alter the reflectivity of the screen. Also provided is a method and apparatus for supporting a screen on a surface such as a wall, including placing slots within the screen for mating with connecting members mounted on a support frame connected to the surface.

Abstract: A trommel for classifying and sorting objects. The trommel is an open cylinder including a drive plate and a feed plate. A series of supporting rods extend between the drive plate and the feed plate. Disposed therebetween is a rod support ring dividing the trommel into a classifying zone and a discharge zone. A plurality of vibrating rods, floating in the vicinity of the rod support ring and anchored to the feed plate, oscillate and flex as the trommel rotates causing preselected sized objects to pass through the vibrating and support bars while the remaining objects are passed into the discharge zone with reduced clogging.

Abstract: A wedge wire for use in a wire type screen for screening papermaker's stock is formed with an elongated body (12) having an enlarged head (20) at the inlet surface of the screen. The head (20) is formed with tapered walls (30, 33) that cooperate to define grooves (28) at the inlet surface between adjacent elements including an upstream wall (30) and a downstream wall (33). A radiused protuberance or projection (37) defines one wall of a screening slot (15), with a wall surface (22) of an adjacent wedge wire element. The slot wall formed by the projection (37) is free of sharp edges and is limited in length, in the direction of flow through the slot (15), not substantially exceeding the gap width of the slot. The upstream wall (30) defining the groove (28) provides protection for the slot (15) against impact and damage by contaminants that may be contained in the papermaker's stock. The slot (15) is free of sharp corners so as not to impede flow through the slot.

Abstract: A segregator bucket comprises an open-fronted shell including a pair of opposed sidewalls and a rear wall, the rear wall including a plurality of curved, transversely spaced primary ribs defining spaces therebetween, a cage member being mounted in the shell between the opposed sidewalls thereof and comprising a plurality of curved, transversely spaced secondary ribs defining spaces therebetween, the cage member being rotatable relative to the shell about an axis extending transversely of the shell between a loading position in which the secondary ribs are received within, substantially to close, the spaces between the primary ribs and a discharge position in which the secondary ribs are displaced from, to open, the spaces between the primary ribs.

Abstract: An adjustable grizzly has a series of parallel bars which form a grate. Each bar of the grizzly is adjustable along the width of a frame. Pins on the underside of the bars drop into slots in the frame. The bars are slid into position along the frame and then locked into place by tension wedge locks. Matching spot faces on the bars with buttons on the frame further secure the bars into position and prevent lateral movement of the bars when the grizzly is in use.

Abstract: A method and apparatus for separating elastomeric particulates from a pulverized mixture wherein a first separator assembly separates out substantially clean fiber and passes non-fibrous particulates and residual fiber to a second separator assembly that separates out substantially clean non-fibrous particulates. The method includes propelling the pulverized mixture under a plurality of first separator cylinders with mixture-engaging structure and against a structure for removing non-fibrous particulates and residual fibers from the pulverized mixture. The non-fibrous particulates and residual fibers are propelled under a plurality of second separator cylinders that include centrifugally releasable mixture-engaging structures and against a structure for separating non-fibrous particulates from the residual fibers.

Abstract: Process and pressure grader screen for wet screening stock suspensions. The process includes conducting the stock suspension along the screen, so that break-away eddies are formed on an inflow side of the screen, separating portions of the stock suspensions, so that a part of the stock suspension passes through the screen apertures as underflow and an other part is rejected as overflow, and moving the at least one clearer relative to the screen, so that one of pressure- and suction impulses are produced at the screen apertures to form pre- and back flows. In this way, a flow direction of the break-away eddy is reversed by the back flow to rinse a part of the screen lying between the screen aperture with the back flow and an adjacent downstream aperture. The pressure grader screen includes a plurality of bars arranged to form a plurality of essentially parallel grading slots through which an accepted part of the stock suspension passes during the wet screening.