Abstract: An improved variable volume control assembly for conditioned air systems having an improved air flow amplifying sensing means that amplifies the difference between the total pressure and the static pressure and is sensitive at low pressures, an improved air flow collector-straightener, a critical ratio of the area of the inlet to the area of the expansion chamber, and a vortex filter strategically located within the assembly for maximum reduction of turbulence and noise.

Abstract: Stable chromated copper arsenate Type B wood preserving concentrates comprising a chromium additive, a copper additive and an arsenic additive with a total of from 5 to 45% oxides and sulfamic acid wherein said copper additive is present in an amount greater than will react with said chromium additive and said sulfamic acid is present in an amount that will inhibit the reaction of the excess copper additive with said arsenic additive.

Abstract: A gap-filling, adhesive composition is provided which is used between polymeric tie plates and the dapped area of a wood, concrete or polyethylene cross tie. This composition contains 65 to 75 wt. % of an asphalt having a softening point in the range of 75.degree. C. to 100.degree. C., 10 to 20 wt. % of a styrene butadiene copolymer having a molecular weigh of 60,000 to 91,000, and 7 to 25 wt. % of a processing oil having a viscosity in the range of 427 poises at 37.78.degree. C. to around 2,500 poises at 37.78.degree. C. and having a flash point in the range of 210.degree. C. to around 250.degree. C. The composition has a viscosity in the range of about 100 to around 300 poises at 150.degree. C.

Abstract: The oven door comprises a latching mechanism having a centrally located spring contained within a spring box to exert a force against said door. A pair of hinge links are pivotably connected to the door hinge shaft and to the spring box. A shaft link is keyed to said shaft and pivotably connected to a latch bar of a yoke type U configuration. A primary toggle link is located on either side of said spring box and pivotably connected on one end to said spring box and door hinge links and on the other end to the latch bar legs, means to limit rotation of primary toggle links and spring box around pivot connections is provided, a latching bracket is affixed to a stationary member for engaging latch bar to secure door to door chamber frame, and actuator means are provided for turning said shaft to open and close the door.

Abstract: A protective coating for bituminous paving surfaces is disclosed, which coating is comprised of a coal tar emulsion, water, and sufficient acrylate emulsion to provide a desired viscosity. Sand may be added to the composition to improve surface traction of coated bituminous surface.

Abstract: Ortho- and para-monoalkylated phenols and 2,4- and 2,6-dialkylphenols can be produced from phenolic compounds in good yields. The phenolic compound is reacted with an aldehyde having one to ten carbon atoms and a secondary aliphatic amine having a basic dissociation constant, pK.sub.b, of less than about 3.6 measured at 25.degree. C. The reaction is conducted in the liquid phase with at least a stoichiometric amount of the phenolic compound, the aldehyde and the secondary amine, or with an excess of the phenolic compound with the stoichiometric amounts of the aldehyde and the secondary amine. The reaction is conducted at a temperature in the range of around 0.degree. C. to about 25.degree. C., and the reaction produces an aminoalkylated phenol. The aminoalkylated phenol is contacted with hydrogen in the presence of a metal catalyst at a temperature of about 120.degree. C. to about 140.degree. C.

Abstract: An improved variable volume control assembly for conditioned air systems having an improved air flow amplifying measuring means that amplifies the difference between the total pressure and the static pressure and is sensitive at low pressures, an improved air flow collector-straightener, a critical ratio of the area of the inlet to the area of the expansion chamber, and a vortex filter strategically located within the assembly for maximum reduction of turbulence and noise.

Abstract: Tars and hydrocarbon oils containing water are dehydrated in a thermally efficient and environmentally acceptable manner. The tars or hydrocarbon oils are heated externally to any holding vessel to a temperature equivalent to at least 100.degree. C. at atmospheric pressure and are sprayed into a holding vessel to enhance the separation of water from the tars or hydrocarbon oils. Then the water in the vapor state is removed from the holding vessel and scrubbed to remove any noxious chemicals.

Abstract: Aqueous effluents from a process for gasifying carbonaceous materials may contain environmentally unacceptable compounds like hydrogen cyanide, ammonia, and compounds thereof, and dissolved salts and compounds of heavy metals and sulfur compounds. These compounds are removed from the aqueous effluents of the process for gasifying carbonaceous materials by recycling the aqueous effluents to the gasifier wherein the compounds are oxidized, reduced, or decomposed into environmentally innocuous compounds that can be released to the atmosphere or removed from the gasification process in the residue.

Abstract: An apparatus for catching coke oven spillage, generally comprised of a hopper movable along the bench floor located on the pusher side of a coke oven battery. The apparatus is positionable along the bench floor adjacent to any one of the ovens which comprise a coke oven battery such that coke released from the oven on the pusher side during the removal of the coke oven door and return stroke of a pusher ram is captured in the hopper. The apparatus is capable of depositing captured coke back into the particular coke oven.

Abstract: Herein disclosed is a floating skimming apparatus for removal of contaminated particles from the surface of a liquid contained in a tank. The floating skimming apparatus comprises a deflecting chamber extending substantially the width of the tank, movable along the length of the tank, and has at least one vertex for collecting deflected contaminated particles upon movement of the deflecting chamber. Flotation collars are connected to the deflecting chamber for continuously maintaining a portion of the deflecting chamber above the surface of the liquid. An evacuation device is connected to the deflecting chamber at the vertex for collecting the contaminated particles and removing the contaminated particles from the tank.

Abstract: Improved phenolic foams are produced having a more uniform cell structure, improved mechanical and thermal properties, and improved foam structure by foaming a phenol-aldehyde oligomer condensate such as a resole, an extended resole, or a mixture of a resole and a novolac resin in the presence of N-methyl-2-pyrrolidone.

Abstract: Phenolic compounds are methylated with methane in the presence of a metallic catalyst selected from nickel or cobalt or mixtures thereof at a temperature in the range of about 300.degree. C. to around 475.degree. C.

Abstract: A gravity motivated hopper with the capacity to alleviate arching of granular material contained in the hopper. The hopper has a lower section defining a flow path which is vertically oriented with vertically decreasing horizontal cross-sectional areas leading to a bottom opening. In the proximity of the bottom opening is a first gate mechanism. The first gate is located below the critical arching cross-sectional flow area of the granular material, and functions to restrain the material during charging of the hopper and hopper transport, or permit flow of the material from the hopper during hopper discharge. Placed above the bottom gate is a second gate mechanism. The second gate is placed above the critical arching cross-sectional flow area for the particular granulated material.

Abstract: A material separator includes a housing defining a settling chamber, a communicating drain chamber and a discharge member. A horizontal screw conveyor extends through the settling chamber and drain chamber to the discharge chamber. Material to be separated is introduced into the housing at the top of the settling chamber and water is introduced into the bottom of the settling chamber at a flow rate sufficient to partially immerse the conveyor. The heavier material components sink to the bottom of the settling chamber while the desired lighter components float and are advanced by the conveyor and water flow into the drain chamber. In the drain chamber, the horizontal screw conveyor is tapered inwardly as the screw conveyor traverses the discharge chamber and a tapered screen is positioned around the tapered screw conveyor to rotate therewith.

Abstract: The invention discloses an improved granular media filter of the type including a filter tank, means for dividing the tank into a plurality of cells, means within each cell for holding horizontal porous support plates, a bed of filter media on the porous support plates, influent means for delivering fluid to be treated to the top of the filter bed, filtrate receiving means in each cell below the support plates for receiving the treated fluid, an effluent channel for removing the treated liquid from the filter, port means for delivering the treated liquid from each filtrate receiving means to the common effluent channel and backwashing means that cooperate with the port means to force a backwashing liquid back through the port means and filtrate receiving means and up through the filter bed for removing contaminants therein and thereon.

Abstract: An adapter for wire electrode assemblies of electrostatic precipitators so that wire electrodes of the type comprising an elongated electrode wire having its opposite ends terminating axially within two identical shrouds, each of the shrouds shaped as an elongated rod terminating in a combined frusto-cone and enlarged button head may be used with all types of support structures. The adapter comprises a curved or hook shaped piece of metal or other suitable material having in one end thereof a vertically aligned hole or slot adapted to cooperate with a bolt or pin, and in the other end thereof a horizontally aligned keyhole or slot adapted to receive the frusto-conical shroud of a wire electrode, the centers of the vertically aligned hole and horizontally aligned hole being in the same vertical plane.

Abstract: A process is provided for printing designs, patterns, decorations, and the like on solid molded polymeric articles made from urea formaldehyde resin or melamine formaldehyde resin. The designs and the like are printed on porous substrate with a printing ink containing about 10 weight percent to about 40 weight percent of one or more dichlorotriazinyl dyes. The printed porous support is contacted with the solid molded polymeric article in a transfer press at a temperature in the range of about 90.degree. C. to about 250.degree. C. in the presence of steam to transfer the printed design to the solid molded polymeric articles.

Abstract: There is disclosed an apparatus for providing various decorative or textured surfaces on a material such as wood. Texturizing on a material surface is accomplished using a portable chain saw angled with respect to the material to be texturized with its cutting depth restrained. The apparatus includes a portable chain saw which has attached to it a pair of rollers, an edge alignment wheel and a pair of support bars. The support bars stabilize the chain saw blade, assist in angling the chain saw and engage the cutting depth. The rollers, assisted by the support bar, maintain the chain saw in angled orientation with respect to the material to be surfaced as the chain saw is passed over the material. The edge alignment wheel maintains proper alignment between the chain saw and the material to be surfaced. The apparatus is portable in design, providing a versatile means of texturizing large structural materials, especially wooden structural elements.

Abstract: Polyesters obtained by reacting isophthalic acid or terephthalic acid with a polyol with or without a catalyst in a first stage to form a half-ester mixture which is reacted in a second stage with an aliphatic polycarboxylic acid are produced at reduced processing times. In the first stage a portion of the total polyol to be reacted is contacted with substantially all of the isophthalic acid or terephthalic acid. Then, this mixture is heated with agitation to a temperature of at least 190.degree. C. and the remaining portion of the polyol is added to the heated mixture with agitation in such a manner that the temperature remains at or above the 190.degree. C. This temperature is maintained until the reaction to form a half-ester mixture is completed. This reaction may be conducted in the presence of an esterification catalyst. The polyester-monomer mixture is reacted in a second stage with an aliphatic polycarboxylic acid to produce the polyester.