Abstract: Sewage treatment device comprises an enclosed housing having exterior walls and first and second interior walls forming first, second and third compartments within the housing. A first opening is provided in the first interior wall forming communication between the first and second compartments, and a second opening is provided in the second interior wall for providing communication between the second and third compartments. The openings are placed at a predetermined height so that the fluid will rise to the predetermined height and then overflow into the next adjacent compartment. A recirculating pump is located in the third compartment and recirculates fluid back into the second compartment where it is sprayed into the second compartment by means of spray heads, one of which is located above the fluid level and one of which is located below the fluid level.

Abstract: Wood preservatives for protecting wood or wood-base materials against animal pests, and which contain a perfluoroalkane sulfonate of the formula C.sub. n F.sub.2n+1 --SO.sub.3 M where n is one of the integers from 1-14 and M denotes hydrogen or a cation, and a process for protecting wood or wood-base materials against animal pests with these compounds.

Abstract: A structure is provided for supporting and retaining bed of particulate material, such as a catalyst, in a reactor or the like, so that the material is prevented from falling through the structure when the material is in either a fluidized or agitated condition due to an upward flow of gas through the structure and material or when the material is quiescent. The support and retaining structure also provides a uniformly distributed gas flow through the material supported thereon and includes a first set of elongated, channel-shaped retaining members arranged in parallel, laterally spaced relation with the flanges of the channels extending upwardly and with elongated gaps between the flanges. A second set of elongated, inverted channel-shaped retaining members are also arranged in parallel, laterally spaced relation with their flanges extending downwardly and with elongated gaps between the flanges.

Abstract: An air purification system accepts foul air from a source of high pressure and treats the air so as to deliver an acceptable breathable air usable in any life support package. The components of the system are mounted on a portable cart. The foul air passes through a plurality of stages in going from the foul to the usable condition. The air is monitored at the various positions along the system to insure that the system is operational.

Abstract: An air-permeable reactor medium of large surface area and high thermal capacity, coated with a catalyst, is cycled along a closed path across a first duct carrying an air stream laden with oxidizable contaminants and a second duct carrying a stream of fresh air, enabling contaminants in the first air stream to be oxidized to innoucuous byproducts, releasing heat which is transferred to the fresh air in the second duct, the reaction medium moving at a variable speed which is a function of the temperature of one of the air streams; considerable improvement in the efficiency of an industrial oven may therefore be achieved by positioning the reactor medium to exchange heat between an incoming stream of fresh air and a stream of hotter exhaust gas so that the temperature of fresh air delivered elsewhere to the oven may be controlled without having to rely on dampers and mixtures of air volumes with inherent damper malfunctions or mis-metering; also a second burner may be eliminated because of the manner in which t

Abstract: A support is pivoted to a frame and supports a first hydraulic drive for actuating movable jaws to engage removing latches of a door to be removed. The support also supports a separate second hydraulic drive for locking or unlocking a door locking device of the door. A separate third hydraulic drive is connected between the frame and the support for pivoting the support and a removed door suspended thereby with respect to the frame.

Abstract: Hydrogen sulfide is removed from a mixture of gases including carbon dioxide by passing the mixture over an assembly comprising a pair of immobilized liquid membranes of carbonate/bicarbonate solution separated by a gas permeable barrier of hydrophobic microporous material. Because hydrogen sulfide transport through the membranes is diffusion limited while carbon dioxide transport therethrough is reaction rate limited, the assembly exhibits reduced permeability to carbon dioxide and essentially unchanged high permeability to hydrogen sulfide compared to a single immobilized liquid membrane of thickness equal to total thickness of the membranes in the assembly. Hydrogen sulfide thus passes through the assembly more selectively than carbon dioxide.

Abstract: The device for pushing incandescent coke out of individual chambers of a coke oven battery which has a plurality of horizontally arranged coke oven chambers, comprises a trackway of spaced apart inboard and outboard tracks which extend along the length of the coke oven battery and a gantry-like carriage which is movable over the trackway and carries the apparatus for pushing the coke out of the individual batteries. The carriage includes inboard legs which are elastically connected to a platform portion which contains the movable ram and other operating parts and outboard legs which are rigidly connected to the platform. The outboard legs also carry contact pressure mechanisms which connect between the legs and the outboard tracks for distributing horizontal stresses to the tracks.

Abstract: A plurality of catalysts are arranged in a desirable order based on the temperature gradient existing in the reaction chamber. The operating temperature of the catalyst and the temperature of the portion of the reaction chamber it is in, are matched so as to avoid catalytic degradation and/or catalytic inactivity.

Abstract: A hollow body member has a plurality of side opening pockets at the upper portion thereof to receive toilet articles such as toothbrushes. The inner ends of the pockets have openings into the interior of the body member providing exposure to sterilizing radiation from an uncoated portion of a light bulb supported within the housing. The light emitted from the coated portion serves as a night light. At the top of the holder is a shelf for supporting containers thereon in inverted relation whereby the containers are also sterilized by the bulb.

Abstract: Apparatus is described that is useful for making a stable aqueous dispersion of a complex alkali metal-aluminium-silicate which is soluble in hydrochloric acid. The apparatus comprises a mixing tube, at least two inlets through which aqueous streams can pass into one end of the tube, one of the inlets being for the supply of the bulk of the water for the process at a pressure of at least 40 psi, an outlet at the other end of the tube, and stationary means within the apparatus for causing the aqueous streams to adopt a generally helical path and to mix with one another with shear, and for causing the product leaving the outlet to be at a pressure of atmospheric pressure or less and which is at least 40 psi below the pressure in the inlet of the bulk of the water.

Abstract: A fat recovery system for hide fleshings and trimmings is disclosed having a grinder for comminuting the fleshings and trimmings, the same being oriented to deliver its parts into a cooker having a steam jacket tube with an interior screw conveyor. After the particulate material has passed through the cooker, a drum type rotary screen is provided from which fat will drop, and the particulate materials pass into a press. Thereafter the solid particulates are removed and the liquid products are delivered into a settling vessel which is heated by steam pipes. Optionally, a drying tank may also be provided. The method of the subject invention essentially includes comminuting the fleshings and trimmings, passing the same through a confined passageway, and agitating the same simultaneously to prevent the particles from coalescing. Thereafter, the particles are screened, and the remaining solids passed into means for pressing the same.

Abstract: A first cylindrical drum member having an inlet portion for receiving materials to be treated, such as preheated coal and char includes a longitudinal axis and an outlet portion through which the treated materials are discharged into the inlet end portion of a second cylindrical drum member. The second drum member is independently supported for rotation relative to the first drum member and has a longitudinal axis coplanarly aligned with the longitudinal axis of the first drum member such that the drum members are concentrically positioned in tandem relative. A sealing assembly is connected to the first and second drum members for longitudinal movement with the drum members during expansion and contraction of the drum members as they are subjected to different temperatures.

Abstract: A coke oven emission control system comprising a traveling hood for the quench car into which hot coke is pushed from the coke oven. The hood is independently supported by wheels traveling on rails and is of a length to cover the entire length of the quench car. The hood is moved by the movement of the quench car to and from a quench station, through beams at opposite ends of the quench car that are selectively raised and lowered into and out of a position for engagement with the hood. The top of the hood is provided with a central elongate hollow neck which projects upwardly into a longitudinally slotted exhaust duct paralleling the battery of ovens. The slot in the duct has a pair of parallel extending flexible sealing strips which are biased toward sealing engagement with each other across the slot and which separate to seal on the neck of the hood as it slides longitudinally along the duct. Selective communication is thus provided for flow of fumes, gas, smoke, particulates, etc.

Abstract: A muffler for internal combustion engines to afford a better approach to the solution of air pollution problems due to unburned fuel fractions. The muffler is of the catalytic type and has a flattened structure, with the flow of the exhaust gases through the catalyst taking place in a substantially downward vertical direction. By such an arrangement the gas pressure drop through the catalyst is reduced and the catalyst efficiency is increased.

Abstract: A coke oven door for a coke oven which has an oven opening with a receiving frame extending around the opening comprises a door body with a sealing plate secured to the face of the door body which is adapted to close the oven opening. The sealing plate is of thin metal material and is held in spaced relationship to the front face of the door body by spacers. The plate includes an annular peripheral portion with an inturned flange directed inwardly toward the receiving frame. Spring biasing means mounted on the door engage against the rear edge of the flange at spaced locations around its periphery and bias the flange inwardly into sealing engagement with the receiving frame.

Abstract: A coke oven door lining assembly involving a vented, metallic door lining having barrier and support means serves to lower coke oven gas pressure at the door sealing edges and thereby reduce emissions. The lining may be open or closed along its length. Other advantages of the assembly involve reduced maintenance, simplicity of manufacture, and minimization of the occurrence of dense, hard to remove carbonaceous deposits on the lining.

Abstract: The so-called float tar which floats on the stream of crude tar and ammonia water in the tar separator of a coking installation and which interferes with the clean separation of crude tar and ammonia water is removed by skimming the float tar off the crude tar and ammonia water mixture and subjecting the separated float tar to comminution and homogenization whereupon the homogenized tar product may be processed either separately or together with the bulk of the tar. An installation for use in the process comprises a tar separator in the form of an open top separator vessel, a channelled structure associated with the separator vessel, means provided in the separator vessel for skimming the float tar off the bulk of the crude tar and ammonia water and passing it into the channel of said structure, and a comminuting and homogenizing device which communicates with said channel through a grade drop.

Abstract: In a system for the disinfection of liquids containing live bacteria, the liquid is directed through a nozzle onto an external surface of an ultrasonic transducer whereby said liquid is subjected to ultrasonic energy at a specific frequency and power for a predetermined period of time so as to achieve a desired and controlled degree of kill of said bacteria.

Abstract: This invention relates to Medical Apparatus, and in one embodiment useful as a urine sampling receptacle wherein urine initially discharged therein may be segregated in order to get a sample which is more nearly representative in chemical composition, comprising a sloped false bottom having an aperture therethrough which includes at least a portion of one edge thereof and is positioned at the bottom of the slope.