Abstract: The basin includes a standpipe having axially extending slots spaced vertically from its bottom. A baffle extends coaxially within the pipe around the slots to separate oil and grease from the runoff. The accumulated water is held in the standpipe thereby allowing the larger particles to settle out into the lower portion of the standpipe before the water flows through the slots into an outer chamber. The outer chamber contains a cylindrical filter element through which the water must flow. The filter element removes suspended lighter solids and any remaining grease or oil not removed in the standpipe. The cleansed runoff finally is discharged through an outflow pipe extending from the outer chamber. The standpipe can be periodically cleansed by removal of a drop inlet grate which covers the pipe. Furthermore, the filter element can be removed for cleaning.

Abstract: Magnetic filter apparatus with a plurality of magnetic bars, carried on endless conveyor chains through a container for contaminated liquid, having for the cleaning of said magnetic bars a device which is positioned outside the liquid above the fluid container. The cleaning device has at least two chain-driven dirt scrapers with wiping formations which enclose from above and below one or more magnetic bars during the cleaning process. In order that the dirt removed during the scraping operation should not fall onto the driving chains, the chain drive is positioned above and to the side of the liquid container. The chain drive moves a steered carriage which bears scraping rods which can be opened and closed pincer-fashion. The dirt scrapers are positioned on the front ends of these rods which project over the container area. The cleaning process takes place with pincers closed, the return stroke with pincers open.

Abstract: A rotary diaphragm press comprises a revolving drum on the periphery of which a tubular diaphragm is mounted, an endless belt assembly which consists of a cover cloth, a filter cloth, and a back-up belt separately extended and arranged one above the other over said revolving drum, and a series of receiving rollers disposed in parallel with a spindle for said revolving drum so as to press the endless belt assembly against the drum in a contact zone of the assembly. The rotary diaphragm press is further designed so that sludge successively fed to the filter cloth is held between the filter cloth and the cover cloth and is passed through the contact zone.

Abstract: An improved drain cover comprising a one-piece top disc and depending cylindrical body adapted to be readily inserted into a drain pipe with the disc resting on the floor and overlying the pipe opening. The body is formed with four radial slots in which trapezoidal locking slugs are slidably positioned. The body is also formed with a central bore, the lower portion of which is adapted to receive a frusto-conical camming plug. A threaded bolt is slidably positioned through the disc and is threadedly engageable with the plug. When the bolt is tightened, it raises the plug into the bore where it cams the slugs outwardly into locking engagement with the drain pipe.

Abstract: A filter assembly for an extrusion apparatus comprises a stationary filter having a flat, hard surface and slidable means having a plurality of apertures for both accumulating filtered debris and cleaning the filter surface when the debris is removed by sliding a clogged slide aperture out of position while replacing it with a clean aperture.

Abstract: A portable purification device for use in cleaning aquarium tank bottoms is disclosed comprising a tube column where compressed air is discharged stimulating a constant flow of water within a lower connected filter chamber housing polyester fiber filtering material for entrapping large and small particle impurities that are drawn in through a lowerly extending pickup tube section.

Abstract: The invention relates to a mechanico-biological waste water purifying plant. The plant has a trough and at least one partially immersible rotatable body arranged therein, the body having a stack of discs which are partially immersed in waste water in the trough and a shaft projecting at its end beyond the stack of discs. The ends of the shaft are supported rotatably in the bearings which have at least two bearing rollers upon which the ends of the shaft are positioned so as to be liftable upwards freely therefrom.

Abstract: This invention relates to an improved injection molding filter assembly to be located between the molding machine and the mold. The assembly has an elongated inner torpedo member with a generally cylindrical outer surface which is centrally located in a passage through a hollow outer member. The passage is defined by a generally cylindrical inner wall which is interrupted by an even number of inwardly opening longitudinally extending channels. Inlet channels extending from the inlet of the assembly and dead ending adjacent the outlet alternate with outlet channels extending from the outlet of the assembly and dead ending adjacent the inlet. Uniform width elongated filtering slits are thus formed between the outer surface of the torpedo member and the lands between the inlet and outlet channels. The melt flows into the inlet channels, through the adjacent filtering slits, and out the outlet channels.

Abstract: A separation drum for suction recovery at high concentration of fine particles, such as algae, removed from dilute liquid medium by a belt filter has a thin, perforated wall rotatably mounted on a substantially horizontal, cantilevered beam fixed on a base. A pair of rings or hubs engage the separation drum at opposite ends. One ring is rotatably supported on rollers mounted on the beam, and the other ring is rotatably supported on a bearing mounted on a shaft extending from the beam to a removable end pedestal on the base. A number of interior rollers, also supported from the beam, engage the interior surface of the drum. A conduction or suction box is disposed on the beam or built into the beam in juxtaposition with the upper, interior portion of the separation drum to receive and carry away material passing through the perforated drum wall. A main belt extends around the exterior of the separation drum wall and around a filtration drum within a liquid medium containing algae.

Abstract: In a rotary drum or disc filter having circumferentially distributed cells in constant communication through open outlets with a common vacuum chamber, which may be the interior of the drum, or part of that interior, or a separate chamber rotating together with the filter. In a position of each cell where filter cake is to be blown off, a jet of compressed air or steam is injected into the respective outlet through a nozzle which combines with the outlet to form an ejector pump (jet pump).

Abstract: A centrifugal oil filter for removing contaminant particles from a pressurized fluid medium includes a cylindrical drum concentric with and fixedly secured to a rotational shaft, with an annular disc being disposed within and rotatable with the drum. The disc is centered within the drum and spaced from the internal circumferential surface of the drum so as to partition the drum into two radial passageways interconnected at said internal circumferential surface. The latter is of irregular configuration to define an annular collection zone for collecting contaminant particles centerfuged outwardly by rotation of said drum. Pressurized fluid medium is provided to one radial passageway, flows past the annular collection zone where the contaminant particles are centerfuged and entrapped in the irregular internal circumferential surface of the drum, after which the pressurized fluid medium is forced radially inwardly through the other radial passageway and out of the centrifugal oil filter.

Abstract: A disposable two-stage spin-on liquid separating device having particular use for separating water from hydrocarbon fuels. The device includes an outer casing having an open upper end which is enclosed by a cover assembly. The cover assembly includes a liquid inlet conduit and a liquid outlet conduit with one of said conduits being located axially of the cover assembly and having a threaded connection for attachment to a liquid flow system. Located within the casing is a two-stage separating unit composed of a coalescing assembly and a separator stage which is located downstream of the coalescing assembly. The coalescing assembly includes a coalescing element and upper and lower end caps are secured to the ends of the element. The peripheral edge of the upper end cap extends radially outward and is secured to the upper end of the separator stage. Attachment of the cover assembly in the casing acts to clamp the separating unit between the cover assembly and the bottom of the casing.

Abstract: Magnetic filter of the type comprising a plurality of permanent magnets disposed in a pipe traversed by a fluid to be filtered, wherein it comprises a system of parallel plates disposed in the pipe parallel to the fluid outflow direction, each plate supporting a plurality of magnetized bars or cylindrical members disposed perpendicular to the plate and all having a same pole on the same side of their supporting plate.Particular applications of the present filter are to the vessel and steam generator of a high power pressurized water nuclear reactor.

Abstract: A rotary drum filter used to form and wash a pulp mat in the paper making process has a cylindrical filter drum with trunnions at its opposite ends mounting the drum for rotation about a central axis. One of the trunnions is hollow and is rotatably connected to an open end of a stationary vacuum pipe for draining filtrate from the drum during its rotation. Packing material provides a fluid seal at the rotatable connection between the vacuum pipe and the hollow trunnion. The hollow trunnion has an inner wall lined with a fiberglass-reinforced plastic material. An outer end portion of the inner wall is recessed to provide a seat for a packing sleeve insert made of an abrasion-resistant material. The inner surface of the packing sleeve insert provides a continuation of the lined inner surface of the hollow trunnion. An outer flange collar of the insert is threadedly fastened to an outer end surface of the hollow trunnion to hold the insert in place.

Abstract: Disclosed herein is a high gradient magnetic separation (HGMS) apparatus, in which ferromagnetic metal wool is used to separate, for example, iron powders from water. Due to the high magnetic gradient around the metal wool, the separation of the iron powders takes place. Because of an improvement of the metal wool used in this HGMS apparatus, iron powders and the like can be collected at a high collecting efficiency, and the renewal operation of the metal wool can be performed in a short period of time. The improvement according to the invention resides in employing an amorphous metal alloy for the metal wool.

Abstract: An eaves trough shield is disclosed which is used to prevent the clogging of a downspout of an eaves trough. The trough shield portion is formed from a plurality of spaced fingers sloped over the downspout opening. At one end, the fingers are attached to a bridge-plate located at the top of the trough near the downspout of the trough. At the other end, the fingers are attached to a bottom plate which rests in the bottom of the trough away from the downspout. Flanges located at each side of the bridge-plate are used to secure the trough shield to the trough. When debris enters along the trough, it is moved to the trough shield by the action of water in the trough and deposited on the fingers. Later, after the debris has dried, it is blown off of the shield and out of the trough by the wind.

Abstract: An illustrative embodiment of the invention provides an electromagnetic filter for fluids in which two magnetizable beds are longitudinally separated. Each of these beds is provided with its own respective magnetizing coil. Incoming fluid is admitted to the space between the magnetizable beds. This flow is divided into two longitudinal oppositely directed streams in order to enable each stream to pass through its respective bed.

Abstract: An oil collection system comprising a two-part housing defining an interior cavity and an annular opening in the side thereof to permit flow of oil into the cavity, a pleated or variable pore size hydrophobic-oleophilic screen mounted in the opening to permit passage of oil but not of water therethrough, an outlet passage extending from the bottom of the cavity through the housing and adapted for connection to an outlet hose and pump, a pump controller mounted within the housing and including a float having a magnet in the bottom thereof and a soft magnetic element in the cavity bottom adjacent the float, and a chlorinator for preventing biological growth on the screen. A draw bolt holding the base and cover together, about the annular screen, also forms a guide shaft for the pump-actuating control float.

Abstract: A filter assembly comprises a plurality of filter elements telescopically mounted relative to each other and in a housing defining an inlet and an outlet thereon. Each filter element comprises a tubular screen having a plurality of longitudinally extending ribs secured in circumferentially spaced relationship therearound. First and second filter elements of each radially adjacent pair of filter elements have the ribs thereof aligned in abutting relationship to space the screens of the filter elements radially from each other to define a flow passage therebetween. The screen of the outermost filter element is cylindrical, the screen of the next radially adjacent filter element is frustoconically shaped and et sequence to closely compact the filter elements together. An end cap is secured on one end of the filter assembly to retain it in place in the housing.

Abstract: An adjustable wiper container and applicator assembly for applying cosmetics such as mascara and the like to eyelashes including an applicator having an elongated stem terminating in an elongated brush-like applicator head formation and a container for the cosmetic material in which the brush-like applicator head formation and adjacent stem portion is to be stored. The container has an opening through which the stem of the applicator is to extend, and an elastic deformable wiper mounted on the container at the opening having movable wiper edge portions providing a variable size wiper orifice through which the applicator head formation is withdrawn for use in applying cosmetic material to the eyelashes or the like.