Abstract: An activated sludge marine sewage disposal apparatus includes an aeration chamber immediately adjacent to a flooded settling tank, rising above a disinfectant chamber and a holding chamber disposed around the lower part of the tank. Flow from the aeration chamber to the settling tank is through a port in the common wall between the aeration chamber and settling tank, and up inside a pond separated from the rest of the tank by a downwardly flaring baffle of skirt depending from the top of the tank. A single shimmer at the center of the area at the top of the pond picks up floating solids and returns them to the top of the aeration chamber. A vent disposed directly over the shimmer continuously draws off air and gas to the aeration chamber. A sludge return line picks up heavy solids for the bottom of the tank and returns them to the top of the aeration chamber through a riser located in the aeration chamber.

Abstract: A process is disclosed for uniformly blending a hydraulic cement binding agent with a liquid stabilizing agent following which the blend is compacted into moulded configurations which stabilizes the hydraulic cement binding agent against deterioration during storage and shipment. When the moulded configurations are ready for use, they are pulverized or formed into aggregates and processed into concrete by conventional techniques.

Abstract: The present disclosure is directed to a controlled reflection readout for information displays or targets such as digital or instrumentation panels for such apparatus as computers, compasses, watches, clocks and consoles wherein the display is not placed normal to the viewing plane and cannot be read at 90.degree. to the display. The display or specular transparent window is inclined to the line of sight and glare shielding means which extends forwardly from the top of the display or target to prohibit reading the display at a right angle thereto whereby reflections from the sun or lights in a room will interfere with reading through the optically transparent window in front of the target or display.

Abstract: The object of the invention is to provide a portable hand operated electrically powered paint scraper compact, sturdy maneuverable and with a positive reliable drive to reciprocate a scraping blade the working surface of which may be both protected and regulated.Another object of the invention is to convert the rotary drive of an electric motor into a reciprocating motion of a blade holder with a dual drive linkage system.Another object of the invention is the provision of a dual linkage drive system which will apply maximum thrust to the working blade and working thrust even should one of the linkage units of the drive fail.A further object of the invention is the provision of a tool as above described including its own internal blower system to cause material removed by the blade to be blown away from the work area.

Abstract: A pipe having a sealing member (3) in an inner groove (2) at one pipe end (1). The sealing member provides a very effective seal relative to a spigot end (1a) of another pipe inserted in the pipe in question. The free ends of lip portions (6,7) of a sealing ring (4) (the cross section of which is of V-shape when undeformed) are provided with beads (8) so that behind a stiffening ring (5) surrounding said sealing ring (4) there is more volume of lip material than there is room for in the space confined by the adjacent part of the bottom of the groove (2), the exterior (1a') of said spigot end (1a), the rearmost sidewall (2') of the groove (2) and the stiffening ring (5). The pipe is preferably a plastic pipe.

Abstract: A hollow body fishing lure that is constructed of a transparent molded plastic and is slidable on the attachment line. The lure has a pair of trailing skirt appendages made from thin plastic mirror film which feature squid tips and are secured to the lure body by a pair of wires in tie grooves. A trolling weight and spectra film are secured within the hollow body. A method of making the lure is also disclosed.

Abstract: Belt filter comprising a filter belt within a frame and a discharge casing connected with a suction device situated therebelow, the discharge casing comprising elements protruding from the bottom towards the filter belt supporting at least one meshed conveyor belt likewise to be driven longitudinally, and being narrower than the filter belt, such that the edges of the filter belt sealingly adjoin the outwardly diverging side edges of the discharge casing.

Abstract: Thermoplastic tube part provided with a polyurethan foam layer with closed skin and containing an inorganic filler for reducing sound production during flow of water through such tube parts.

Abstract: The present disclosure is directed to a method of weighting gaseous or fluid transmission pipes and storage containers for under water use to maintain them at the greatest possible depth by applying a weighting layer or mass onto the pipe or container by mixing a finely divided steel slag aggregate having hydraulic binding properties with water to obtain a sprayable mixture and spraying the mixture onto the pipe or container to obtain a weighting coating layer thereon which has hydraulic binding properties.

Abstract: In a key-activated vehicle wheel drum brake -e.g. a so-called S-cam-brake - means for automatically compensating the wear on the brake lining may be inserted between the key and the brake shoe ends by a method involving the steps of removing the original key as well as a predetermined part of the original brake shoe ends. A new key, new brake shoe ends and new automatic compensation means are subsequently added.

Abstract: The present disclosure is directed to a mobile side-by-side batching plant wherein the aggregate storage bins are disposed end-for-end along one side of the longitudinal center line of the supporting, transporting frame. The cement storage bin is disposed in continguous substantially coextensive relation therewith, along the other side of the center line of the supporting transporting frame. Batching conveying and handling means are provided in receiving relation under the several storage bins for the reception proportioning and delivery of selected aggregate and cement.

Abstract: The present disclosure is directed to a modular conveyor belt made from extruded flexible links which may be either of plastic or metal having ends joinable into an endless belt by an extruded substantially rigid jointing member which also cooperates with a notched sprocket to form a drive member for the belt. Due to their formation by extrusion the top surface of the links may be formed with flights of different geometric form for performing a multiplicity of conveying tasks. The particular geometry of the extruded modular link anchoring connectors and the complemental shape of the extruded substantially rigid jointing and drive member permits links to be assembled into an endless belt by merely sliding the jointing and drive member transversely across the ends of a pair of back to back flexible links.

Abstract: The invention relates to an automatic slack adjuster for maintaining a constant slack in a vehicle brake mechanism. The brakes are applied by turning a key flat carried by a key shaft, said key flat acting upon a pair of telescopically displaceable elements the length variations of which are synchronized. A spring member secured to the key shaft actuates the relative displacements of the elements.

Abstract: A method of arranging twine around a bale of straw or hay formed by pressing in a baling machine in which twine is fed from two separate bobbins, and, while pressure on the bale is maintained, one knot is laid in both pieces of twine for tying off the bale and another knot as starting knot for a following bale. The time periods of the formation of the knots overlap. The knots formed are noose type knots. The knots are formed under substantially no tension, so that the bales can be pressed with a considerable pressure, and a resulting increased density, without affecting the process of forming the knots or the firmness and stability of formed knots.Apparatus for binding bales in a baling machine comprising means for supplying twine for each twine loop, from two separate bobbins, and first and second rotary driven knotters.

Abstract: A device for driving an agitator, in particular an aerator for waste water, wherein the agitator is coupled to the output shaft of the driving device, which output shaft in its turn, is coupled to a revolving table.Said revolving table has an outer ring gear which is in engagement with the cogged wheel of a motor and also constitutes the outer ring of a revolving bearing the inner ring of which is carried by a rigidly supported, axially adjustable bridge.

Abstract: An improved worm mixer for use in containers having pivotally mounted wires attached to the superficies of the worm and being parallel to the axis of the worm so as to prevent residue from forming on the walls of the container.

Abstract: Sealing member for a spigot and socket coupling, comprising a retaining part, a sealing part extending with two steps within the space bound by the inner circumference of the retaining part and of the extension thereof and a connecting part interconnecting the retaining part and the sealing sleeve. At any point between the junction with the retaining part and the free end of the sealing sleeve, the thickness of the sealing member is not greater than the thickness of the part extending between said point and said junction. The thickness does not exceed the thickness of the sealing member at said junction.The inner side of the steps of the sealing member are provided with leakage-preventing ribs and the retaining part is substantially perpendicular to the connecting part, whilst the first step of the sealing sleeve is situated within the inner side of the retaining part. The end of the sleeve is provided with a tapered lip forming preferably a sort of sickle with the sealing member.

Abstract: A method for removing small quantities of coagulable substances from potato waste fruit water by means of a heating treatment, in such a way that, prior to heating, the fruit waste is subjected to an ultrafiltration at a pressure comprised between 5 and 10 Atm. until the protein concentration has increased to a value of at least 6%.

Abstract: A process is disclosed for treating caustic wash solutions with permanganate ions such that a significant degree of chemical purification of the wash solutions is effected which correspondingly permits reuse of the wash solutions in cleaning metal articles.