Abstract: A drain suitable for installation in a wooden floor comprises a body, a grate frame secured to the top of the body, a grate mounted in the frame and a projecting annular flange secured between the body and the grate frame for screw attachment to a deck of the floor.

Abstract: An adjustable floor drain apparatus having an outer cylindrically shaped body with threads on the inside thereof attached to the top of a drain pipe. A cylindrical member is disposed inside of the outer body so that concrete can be poured around the cylindrical member and the concrete will not enter the outer body. An inner cylindrically shaped body having threads on the exterior thereof is provided for mating with the inside threads on the outer body whereby the inner body can be threaded into the outer body and whereby the top thereof can be adjusted up or down to conform to the height of the finished floor. A ring is adapted to engage the top of the inner body and the ring has a partially spherical surface around the lower periphery thereof which contacts the top of the inner body which also has a complementary shaped partial spherical surface thereon for providing a mating slideable joint between the ring and the inner body. The ring is adjustably attached to the inner body.

Abstract: An improved floor drain plate assembly for closing the open mouth of a drain includes an apertured floor drain plate having slots and at least two jam clips. Each of the jam clips has a base and a pair of spaced apart legs. The assembly also includes bolts with an enlarged head and nuts for suspending the clips below the plate. When the clips are in place, one of the legs of each clip is jammed into a slot in the drain plate and the second leg can be forced by the tightening of the bolt and nut outwardly to engage the wall of the open mouth of the drain and secure the drain plate therein.

Abstract: A polymer plastic drain apparatus for the aggregate decking areas of a swimming pool. The drain is comprised of an elongated trough adapted for burial in the aggregate and is formed of a bottom wall and parallel spaced apart upright sidewalls terminating at their upper distal ends in a bifurcated formation defining an intervening space of selected cross-section. Adapted to overlie the trough in a removable mounting relation thereto is an apertured grating having elongated skirts downwardly depending from the longitudinal edges thereof. The skirts are insertable within the intervening spacing of the bifurcated trough formation in a springlike interfit enabling the grating to be removed and replaced as appropriate. Internally of the trough are a plurality of longitudinally spaced transversely arranged sleeves extending between openings in the opposite sidewalls.

Abstract: The invention concerns a storage space for liquids, especially a rain-basin or sewer-backup space, with at least one flushing chamber that is positioned at the maximum height of the bottom of the storage space, that can be filled with storage liquid, and that emits the storage liquid in the form of a torrent of flushing water through at least one flushing opening when the storage space empties.The object of the invention is accordingly a storage space for liquids with a flushing device wherein the storage space fills automatically and wherein the flushing process is automatically initiated subsequent to each storage process without outside energy.This object is attained in that the flushing chamber automatically fills with storage liquid as the level of storage liquid rises, means of retaining the storage liquid in the flushing chamber once it has arrived therein are provided, and the flushing opening is closed off and opened up by a closure controlled by the level of storage liquid in the storage space.

Abstract: A self sealing sewer cover assembly for preventing flammable gases from being discharged from a sewer and for preventing the ignition of gases in a sewer by flames and sparks in the adjacent to the sewer inlet. The apparatus of the present invention comprises a cover assembly which may replace or be used in combination with an existing cover or grating on a sewer inlet and may be inserted into the inlet to a sewer. The apparatus of the present invention provides a water barrier between gases contained in the sewer and the ambient air adjacent to the sewer inlet which prevents the flow of gases from the sewer to the ambient air surrounding the sewer inlet.

Abstract: A self sealing sewer cover assembly for preventing flammable gases from being discharged from a sewer and for preventing the ignition of gases in a sewer by flames and sparks in the area adjacent to the sewer inlet. The apparatus of the present invention comprises a cover assembly which may replace or be used in combination with an existing cover or grating on a sewer inlet and may be inserted into the inlet to a sewer. The apparatus of the present invention provides a water barrier between gases contained in the sewer and the ambient air adjacent to the sewer inlet which prevents the flow of gases from the sewer to the ambient air surrounding the sewer inlet.

Abstract: A drainage channel system is disclosed which is characterized by a plurality of drainage channel segments (30) of progressively greater length adapted to be interlocked end-to-end. Each channel segment (30) comprises a pair of opposing, spaced-apart sidewalls (31), (32), a bottom wall (33) connecting the sidewalls (31), (32) adjacent one end and a top opening opposite bottom wall (33) defining a fluid entrance adapted to receive a grate (37). A sidewall extension (10) is provided for being mounted on top of each of the sidewalls of channel segment (30) along at least a part of the length thereof to effectively increase the total depth of each channel segment (30) and increase the length of a continuously and progressively sloping run of the drainage channel system.

Abstract: The drainage channel comprises a channel body (1), cast frame (2) and cast grid (3). The support surface of the side walls (11) of the channel body (1) are of stepped construction, with a raised external supporting rib (13). The frame (2) is rectangular, with a lowered support rail (28) as support for the side ribs (30) of the grid (3). On the outside the frame (2) has detachably fastened brake lugs (23), which in the installed state prevent displacement of the frame (2). Locking bar holders (44) of roughly H-shaped cross-section are disposed in the side walls (11) some distance below the support surface. These locking bar holders form a closure between the interior of the channel body and the exterior. On the inside a side wall (79) forms an obtuse angle with the wall (75), so that the locking bar (45) can easily be turned into the inner recess (78).

Abstract: The invention relates to an arrangement for damming water and also for draining away the volume of water above a certain level in a vegetation-bearing stratum. Arrangements of this type normally have on the base consisting, for example, of concrete, a sealing layer and on top of this a root protection sheet. In addition, the base has an inlet channel for the water. The primary purpose of the arrangement is to ensure that the water located between the sealing layer and the root protection sheet is carried away into the inlet channel. The arrangement also consists of a pipe socket set with clearance in the inlet channel and which is provided externally with a plate-like flange next to its upper edge and, additionally, with a water-damming pipe arranged at an adjustable height in the pipe socket, the exterior of this pipe being sealed in respect of the interior of the pipe socket.

Abstract: A drainage system for disbursing water supplied by a drain pipe including an enclosure positionable in water permeable material, its top edge generally flush with terrain, and said enclosure having a generally perforated top, an opening in the bottom and an opening in a side wall. Water received by the enclosure through an opening in the side wall and is generally spread and thereby gradually dispersed around the enclosure and residual water in the enclosure is gradually leaked off through the opening in the bottom.

Abstract: A slotted grate (3) is disclosed which is formed of a sheet metal strip with slot (15) therein. Reinforcement of the grate (3) is achieved by inserting a sheet metal arch support (30) between two adjacent slots (15). The arch support (30) is formed of a piece of sheet metal bent into a U-shape with shoulders (35, 36) of its end sections (31) being spaced further apart than the shoulders (37, 38) of its midsection (32). A process is disclosed wherein the slotted grate (3) is constructed by first placing arch supports (30) between the desired slots (15) and then double bending the edge sections of the sheet material forming the grate (3) to form two U-shaped side channels with the shoulders (35, 36) of arch support (30) locked securely therein.

Abstract: A guttering system including shallow channel portion which receives run off from a roof from which it is attached. The shallow channel is part of a length of formed metal sheet which wraps around in an approximate "C"-shape to provide fascia and if required eaves. Supported within the formed metal sheet and situated below the shallow channel is a plastics conduit, such as PVC channel, which leads to down pipe. Spaced along the shallow channel are through holes, with strainers, which allow water collected to pass through into the conduit and then to the down pipe. The formed metal sheet and conduit are both supported by plurality of spaced apart brackets which can be attached on top of, or alongside, roofing structures such as rafters. The brackets need not to be attached in a specific location relative to the rafter ends, and the rafter ends need not to be cut plumb.

Abstract: A grate riser for use with catch basins and the like comprising vertically open rectangular frames with at least two opposing frame sections carrying inwardly projecting horizontal grate support flanges and cooperating grates with opposite end portions of parallel spaced apart elongated horizontal grate elements adapted to rest on the flanges. The grate riser has a vertically open generally rectangular frame coextensive with a catch basin frame with opposing vertical side and end wall sections of a height substantially equal to the depth of new road pavement. The frame rests atop a catch basin frame with its top edge substantially level with the top surface of new pavement. At least two horizontally spaced upper riser elements depend from each of two opposing grate riser frame sections to support a pair of elevated horizontal grate support flanges. The grate support flanges have lower riser elements depending therefrom in the form of flanges which rest on the grate support flanges of the catch basin.

Abstract: A self supporting grate for a drain structure can be improved by including as part of the grate a mounting base sized and shaped to attach the grate to the drain structure. At least a portion of the grate is formed as a generally upwardly projecting wall attaching to and extending from the base. The wall includes a plurality of weirs capable of forming a variable flow fluid pathway to the interior of the grate for fluid disposal by the drain structure. The weirs are constructed so as to allow fluid at a first fluid level on the wall as measured from the base to flow at a first rate from the exterior of the grate into the interior grate and fluid at a second fluid level likewise measured along the wall from the base to flow at a second rate into the interior of the grate, with the second rate being different from the first rate. A guard lip is located on the mounting base peripheral to the grate to retard the flow of solid material over the guard lip and to prevent clogging of the grate.

Abstract: A slotted grate (3) is disclosed which is formed of a sheet metal strip with slot (15) therein. Reinforcement of the grate (3) is achieved by inserting a sheet metal arch support (30) between two adjacent slots (15). The arch support (30) is formed of a piece of sheet metal bent into a U-shape with shoulders (35, 36) of its end sections (31) being spaced further apart than the shoulders (37, 38) of its midsection (32). A process is disclosed wherein the slotted grate (3) is constructed by first placing arch supports (30) between the desired slots (15) and then double bending the edge sections of the sheet material forming the grate (3) to form two U-shaped side channels with the shoulders (35, 36) of arch support (30) locked securely therein.

Abstract: A frame member for road surface installations has a rectangular frame with a circular opening to receive circular cover members which can be used for catch basins, for manholes, and other road surface aperture covers e.g. valve chamber covers. The circular cover member may be imperforate, or perforate, with openings or with slots. A standardized frame member may be employed with various forms of structurally distinct cover members, so that a stock of standardized frames and various distinct cover members can be provided. An annular seat surface on the frame member and the matching surface on the cover member which is received on the seat surface can be machined surfaces that will fit accurately so that the cover member will not wobble relative to the frame member and is exposed to less risk of fracture.

Abstract: In the ground surface drainage apparatus, a monolithic catch basin has a side outlet sleeve for the positioning therein of a subterranean drainage tube. An adaptor bushing engages against a stop in the sleeve and has its own stop lip for use with a smaller sized drainage tube.

Abstract: A device for use in water drains provided with an outer drain grating for preventing accidents and coarse material falling into the drain. The device is intended for separating and collecting particulate impurities, such as sand, wooden pegs and leaves, and also oil and other liquid impurities passing through the grating. To this end, the device includes a holder ring intended to be mounted under the drain grating, and carrying the combination of a coarse-filtering and protecting means and a fine-filtering means. The coarse-filtering and protecting means is cup-shaped and arranged in the holder ring, while the fine-filtering means comprises a filter bag of a flexible and water-permeable cloth or fabric material arranged around the holder ring. The holder ring is preferably funnel-shaped and provided with a mounting flange arranged to be firmly clamped beneath the drain grating, and the coarse-filtering and protecting means comprises preferably a wire basket.

Abstract: A drainage device for drainage of moisture which collects between a waterproof isolating layer applied to the top surface and a concrete slab itself and/or moisture which passes through a surface layer deposited on top of the isolating layer. The drainage device has a drainpipe extending through the concrete slab and having at its upper end a shallow funnel provided on its upper surface with radially extending grooves and being flush with the top surface of the concrete slab. The funnel is fitted on its underside with a centering cuff concentrically surrounding the funnel tube spatially separating the funnel tube from the drainpipe, the diameter of the funnel tube being at least about 20% smaller than the inner diameter of the drainpipe. The upper end of the funnel opening is covered with a mushroom shaped insert resting on the top of the isolating layer and having radially extending grooves on its underside.

Abstract: A process for separating a dispersed phase from a continuous phase comprising immersing vertically in the mixed phases an apparatus.

Abstract: A manhole cover assembly comprises a seating ring which can be inset in a street or roadway surface and which is formed with a pair of lateral compartments in which respective latches of the plug-like cover can be received. According to the invention, the cover has a pair of opposing radial projections adapted to be received under respective projections of the ring upon rotation of the cover relative to the ring in bayonet action. Each of the latches is in the form of a pawl pivotal about a respective pin on the radial projection and adapted to swing so that a surface of the pawl substantially completely closes the compartment, flush with the upper surface of the ring and an end wall of the pawl abuts or is juxtaposed with the wall of the compartment to prevent rotation of the cover. The pawl can have flanges which, when the pawls are swung upwardly, form handles enabling the cover to be lifted from the ring.

Abstract: A molded structural plastic grate is received within a recess defined by a rim at the top of a structural plastic catch basin which also serves as a girth beam for strengthening the top of the basin. Bottom portions of the basin are rounded to provide a dome section for strengthening the bottom of the basin. The four corners of the basin reinforce it against buckling under weight placed on top of it. Each side wall of the basin is formed to include a breakout section adapted to be easily removed to provide a drain pipe receiving opening. The portion of the side wall surrounding the opening is adapted to be received within a groove portion of a section of corrugated plastic pipe.

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: A floor drain for showers or the like includes a cylindrical drain body having an externally threaded upper portion and a flange extending radially outwardly from the upper end thereof. A threaded nut is secured to the externally threaded portion and opposed to the flange for clamping the floor therebetween. The lower portion of the drain body comprises a concentric cylindrical member of smaller diameter joined to the upper portion by an annular shoulder. The inside diameter of the lower portion is dimensioned to receive a standard drain pipe. An inner strainer is provided to rest on the interior surface of the annular shoulder, and an outer strainer is snappingly secured in an annular groove adjacent to the upper end of the bore in the drain body. Alternatively, a spider may be permanently secured in place of the inner strainer.

Abstract: A manhole cover elevating and support ring adapted to be placed within an existing manhole frame for raising the height of a manhole cover, and a method of installing the same. A circular ring is roll formed of metal bar stock with a predetermined size gap. An improved adjustable link is force-fitted within the ring gap to expand the ring outwardly into abutting clamping engagement with an annular wall of a manhole frame to securely mount the ring therein. The improved method includes the steps of radially compressing the ring and restraining the ring in this compressed position. The ring then is placed within a manhole frame opening. The restraining means is removed and the ring expands outwardly toward its normal uncompressed position, thereby clamping itself tightly against the manhole frame. The improved adjustable link and a spring biased keeper also may be installed within the ring gap to insure its clamping engagement with the manhole frame.

Abstract: This invention relates to an improved apparatus for both processing and removing animal waste products from a pit continually supplied therewith which comprises a ramp-like lid partially covering the pit and cooperating with the contents thereof to seal the latter from the atmosphere except where the waste products enter, a spray at the head of the ramp for flushing the waste materials down and off the lower end thereof into the pit, a heater buried in the material within the pit effective to maintain the temperature thereof at a level conducive to facilitate anaerobic digestion of the bio-degradable portion thereof, means for piping off the bio-gas generated underneath the lid and using a portion thereof to fire the heater, and means for draining the pit remote from the point where the fresh waste enters same, such means being adapted to maintain a near constant level of material within the pit effective to preserve the seal and discharge material therefrom without admitting air thereto.

Abstract: A liquid-tight manhole closure structure including a base frame having a manhole opening therein, a manhole cover for placement in the manhole opening, and a retainer ring for detachably securing the cover on the frame. The retainer ring and frame having peripheral coacting, detachably interlocking, cam surfaces for removably securing the ring to the frame. A resilient sealant is disposed between the cover and the frame to prevent liquid seepage through the manhole opening. The sealant may be vulcanized or otherwise secured directly to the periphery of the cover and/or to the frame.

Abstract: Plastic extender rings for manholes are produced and are seated on the top ring of a manhole by the use of caulking or other adhesive material. The manhole cover, which is elevated by the plastic ring or rings from the old pavement level to a new pavement level, renders the manhole cover less noisy to traffic and seated more evenly. Recessed or notched portions of the rings receive the asphalt to arrest rotational and upward movement of the rings. Composite adapter rings are provided to adapt an off size manhole top rings, to a standard size manhole cover. Plastics are employed which will not melt at the application temperature of asphalt but will soften somewhat to conform better to the contour of the manhole cover and/or underlying manhole top ring.

Abstract: A support frame for a man-hole cover or similar article of highway furniture has a vertical wall portion with an outwardly extending flange at one end. Support means for the cover on the inside of the flange is so arranged that the frame can be mounted either with the flange at the upper end of the wall or with the flange at the lower end of the wall, the top of the cover being level with the top of the frame in both cases. When the frame is mounted with the flange at the upper end, the frame is "self-levelling".

Abstract: This invention pertains to a method and apparatus whereby, when a thoroughfare is to be resurfaced, the covers for the openings that extend downwardly beneath such thoroughfares may be raised to a level corresponding to the raised level of the resurfaced thoroughfare. Such raising is accomplished without the need for digging up the framework that supported the cover.

Abstract: A method for inhibiting movement between a load bearing access device, such as a manhole cover or catch basin grate and its supporting framework which involves drilling a plurality of vertical passageways at spaced apart intervals adjacent to the circumference of said access device, said passageways also extending into said supporting framework, and fixing vertical studs in said passageways.

Abstract: A catch basin may be retrofit for isolating/diverting spills and/or initial storm runoff for the subsequent treatment or recycling of the collected material. A sloping, peripheral trough is provided in the catch basin and is connected to one or more storage or recovery tanks or the like. A plurality of catch basins may be provided with troughs connected to one or more common storage or recovery tanks.

Abstract: A synthetic resin laminate composed of a supporting plate having protrusions and a foamed sheet having fine through-holes and fixed to the protrusions is produced by placing a foamed sheet extruded on the protrusions of a supporting plate heated to a temperature suitable for fusion-fixing and applying a draft to the supporting plate at a speed more than, but not exceeding 5 times the speed of the foamed sheet.

Abstract: Articles are manufactured on a production line including a plurality of independent work supporting and handling elements supported for movement along a conveying line connected to a plurality of stations for the individual treatment of an article. Each station includes at least two short treatment lines supplied with the handling elements by parallel branches of the conveying line, with the branches each being connected to a common discharge conveyor line, whereby each treatment line may receive a group of handling elements with the articles conveyed thereon receiving a plurality of operations at the stations while the articles are supported on the handling elements, with the group being moved from the branch lines after treatment of the entire group is completed.

Abstract: This device consists primarily of a coupling sleeve for a sewer pipe, and on the interior of the coupling sleeve is supported a cup or well, and on the interior of the cup is supported, a funnel tube beneath a water strainer. The water flows through the strainer, down through the funnel tube, upwards out of the cup portion, and finally, down the open end of the coupling sleeve, into the sewer pipe.

Abstract: A pre-cast reinforced concrete catch-basin of larger than conventional catch-basin dimensions includes a solid horizontal bottom wall with solid, hollow, cylindrical side wall upstanding therefrom to about half the height of the catch-basin. The lower half thus forms a sealed, unapertured, undrained, sump receptacle for collecting drain water and silt and allowing sand to settle out. The hollow, cylindrical, upper half contains leaching openings which extend through from the inside to the outside of the wall, from top to bottom, for discharging cleared water to the surrounding, stone-lined, earth without plugging, or clogging, and without polluting nearby wells, brooks, etc.

Abstract: This invention relates to a drainage system for providing drainage above and below a poured floor. After the sub-soil layer is prepared to receive a poured floor thereover, a conduit is provided in the sub-soil and a floor drain is connected to the conduit. The floor drain has first aperture means opening upwardly and second aperture means opening substantially laterally at a location below the first aperture means. On top of the sub-soil layer there is then provided a relatively liquid-permeable layer such as gravel or coarse sand into which seepage from the sub-soil layer can take place, and thereafter a further layer of relatively liquid-impermeable material such as concrete is provided over the first-mentioned layer.