Abstract: A screening apparatus includes a vibrating screen assembly that includes a screen and a vibrating mechanism operable on the screen to cause vibration of the screen, the screen having a feed end and a discharge end. At least one shield member is positioned on the screen and is configured to cover part of the screen between the feed end of the screen and a position intermediate the feed and discharge ends of the screen, such that particulate material for screening by the screen can be fed on to the, or each, shield member, the, or each shield member being positioned on the screen so that a vibrational pattern of the screen is imparted to the shield member. An adjustment mechanism is operatively engaged with the, or each, shield member to adjust a position of a discharge end of the, or each, shield member relative to the discharge end of the screen.

Abstract: A vibratory separator including a separator deck including a hinge point, and a positive displacement mechanism coupled to the separator deck and configured to displace the separator deck to an angle of inclination is disclosed. A method of separating solids form a slurry, the method including pumping a slurry onto a separator deck, vibrating the separator deck, and displacing an end of the separator deck in an upwards or downwards direction with a positive displacement mechanism to a selected angle of inclination is also disclosed.

Abstract: Methods and apparatus for vacuum operated sorting. The apparatus may include a plurality of casing members each having a passageway with a filter member across the passageway. The casing members may be removably coupled to one another in a desired order and/or quantity and attached to a vacuum source to provide sorting of objects such as beads into a plurality of size ranges.

Abstract: A sifting apparatus and container for storing and dispensing material, such as cosmetic powder are described. Two sifters are arranged so their holes are not aligned, and a resilient material is placed between the sifters to create a gap that allows powder to pass out from a storage cavity to a surface accessible by the user. In a second configuration, at least one of the sifters is displaced toward the other sifter to reduce or eliminate the gap, thus reducing or preventing the flow of material through the sifters.

Abstract: Described herein are containers having a bottom portion, a bottom sifter, a dial sifter, and a removable cover having pins. A bottom sifter and a dial sifter are rotatably engaged, and both have at least one sifting hole for sifting materials with a powder-like consistency. Either the surface of the bottom sifter facing the dial sifter or the surface of the dial sifter facing the bottom sifter may have at least one raised portion, and the remaining surface may have at least one recessed depression. The dial sifter may have one or more cavities to engage the pins in the cover, thereby rotating the dial with the rotation of the cover.

Abstract: Apparatus is provided, in or for a screen separator for sieving materials, for clamping one or more sieve screen frames 78 within the confines of a chassis 40 of the separator to prevent egress of material from the separator. The apparatus comprises a sheath 50 extending around and embracing the chassis 40 and one or more expandable elements 66 for urging the sheath 50 against the chassis 40 and the screen frame(s) 78 to impart uniform clamping pressure to the clamped elements. The sheath 50 is designed to provide ease of mounting and release.

Abstract: A vibratory separator having a basket for supporting screen assembly apparatus, the basket having an interior surface, vibrator apparatus connected to the basket to vibrate it and the screen assembly apparatus releasably secured thereto, seal apparatus connected to the screen assembly for sealing an interface with a part of the interior surface of the basket, the seal apparatus including a seal holder removably holding a seal member, the seal holder having a projection projecting into a recess of the seal.

Abstract: A support apparatus for supporting at least one screen assembly of a vibratory separator, the vibratory separator having seal apparatus for sealing an interface between a portion of the at least one screen assembly and an interior surface of the support apparatus, the seal apparatus including a seal member removably held by a seal holder within the vibratory separator, the support apparatus including container apparatus having a side wall, the side wall having an opening therethrough adjacent an end of the seal apparatus, and a cover removably connected to the side wall on an exterior surface thereof, the cover removable to provide access to the seal apparatus.

Abstract: A vibratory separator having a basket for supporting screen assembly apparatus, the basket having an interior surface, vibrator apparatus connected to the basket to vibrate it and the screen assembly apparatus releasably secured thereto, seal apparatus connected to the screen assembly for sealing an interface with a part of the interior surface of the basket, the seal apparatus including a seal holder removably holding a seal member, the seal holder having a projection projecting into a recess of the seal.

Abstract: A waste recovery station for a beach cleaner for recovering waste raked up by a beach cleaner. A waste recovery station for a beach cleaner includes a pair of station members arranged in parallel with each other through a required spacing. Each station member is provided with a pair of support posts with a foot such as, for example, a circular or square flat plate fixed to a lower end of each support post and is also provided with a guide member fixed to upper ends of the support posts. In the guide member, a longitudinally intermediate portion is formed as a horizontal portion and front and rear end sides are formed as slant portions and are bent downwardly at an obtuse angle. The beach cleaner A is lifted by the guide members while passing between the station members, whereby waste caught on rakes is allowed to drop onto the sand.

Abstract: A vibratory screen separator using screens includes a base and a housing resiliently mounted to the base and divided into two wall portions held together by a clamp band. Brackets are located high on the housing and lifts are diametrically positioned to either side of the housing. The lifts are pivotally mounted to the base through feet to move from a first position engaging the brackets to a second position displaced from the housing. Each lift includes a fluid cylinder and shaft mounted to an arm. A head associated with the shaft of the fluid cylinder and shaft engages a slot on the associated bracket and can operate to lift a portion of the housing with the clamp band removed. In this lifted state, access is provided to screens clamped within the housing between housing portions.

Abstract: An integrated gasket and screen frame for a screen assembly for use with a vibrating shaker. The screen assembly includes a tubular frame having a top side and an under side. At least one screen cloth is affixed to the top side of the frame. A slot in the tubular frame has a width. An elastomeric gasket has at least a portion wider than the width of the slot so that the gasket may be press fit and mechanically locked into the slot and held therein.

Abstract: A clamp for securing a removable cover on a screening machine is an over-center mechanical clamp which includes two distinct clamping force adjustment mechanisms. A first clamping force adjustment mechanism includes a plurality of clamping positions on a support bracket mounted on the cover. The clamp handle assembly is selectively positioned in one of the clamping positions on the support bracket to provide incrementally different clamping force levels. Additionally, irrespective of the clamping position, rotation of a threaded rod of the clamp adjusts the clamping force. A force level indicator is provided on the clamp to indicate the clamping force produced by the clamp.

Abstract: A screening apparatus is disclosed having at least one housing attachment element and a main housing element, each of which has a hollow cylindrical and/or truncated-cone-shaped housing outer wall. The apparatus includes at least two coaxial, predominantly rotationally symmetrical screen baskets and a rotor having pulsation elements. An accepts chamber is disposed radially outside the screen baskets and the rotor and pulsation elements are disposed radially inside the screen baskets. An inlet of the housing is disposed centrally in the area between the screen baskets and an outlet channel allowing for access in the area between the two screen baskets. The invention is characterized in that at least in the area of the screen baskets, only one main housing element and one attachment element are provided and that the first screen basket is disposed in the attachment element and the second screen basket is disposed in the main housing element.

Abstract: Disclosed is a clamp for securing the top cover of a screening machine. Clamping is not subject to galling or seizing and the force exerted is not temperature or displacement dependent. The clamp is air pressure operated, with super-atmospheric pressure being applied for clamping and venting to atmosphere or sub-atmospheric pressure being applied to release the clamp. The clamp is mounted for easy swing away movement when not in use so as to permit the top cover to be removed. Multiple clamps may be simultaneously operated from a common manifold.

Abstract: Disclosed is a clamp for securing the cover of a screening machine. The clamp is air pressure operated, both to apply clamping force and to retract or swing the clamp out of the way when it is open. Super-atmospheric pressure is applied for clamping; subatmospheric pressure is applied to swing the clamp away. Multiple clamps may be simultaneously operated by pressure or vacuum from a common manifold.

Abstract: Apparatus for cleaning, aerating and fumigating grain comprises chutes having screens therein over which the grain is passed. Conduits interconnect the chutes with a blower mechanism so that the grain to be cleaned is subjected to a vacuum which causes the fine debris, trash and the like to be passed through the screen. The fine debris is entrained in a stream of air and directed exteriorly of the grain storage structure. The conduits connected to the blower assembly may be detached from the grain cleaning chutes and connected to tubes inserted into the grain to permit heated gases and moisture to be removed from the stored grain. An air entrained fumigant may also be directed through the tubes into the grain for controlling insects and the like.

Abstract: A foundry sand reclaiming apparatus is provided in which lumps of used foundry sand are introduced into a vibrating chamber. The lumps abrade each other to produce discrete particles of reusable foundry sand. As the sand builds up in the chamber, the vibratory action moves the sand to an exit opening from which it is discharged from the vibrating chamber. The vibratory conveying action produced during the sand abrading step may be reversed to cause irreducible particles to move toward and be removed from a discharge outlet.