Abstract: The cleaning apparatus includes: (A) a cleaning head having a plurality of angled side by side chisel-like blades, the end sections of which are affixed to a pivotable member having one end portion secured to a frame member, said pivotable member allowing said blades to traverse an arcuate path, said cleaning head having a centrally located pivotable member for affixing cleaning head to a carriage and allowing for uniform loading of blades against surface to be cleaned; (B) a carriage for transporting the cleaning head in a reciprocal path across the periphery of an open door surface to be cleaned, pivotably connected to the cleaning head by the centrally located pivotable member and means for driving said carriage; and (C) a supporting ram affixed to the carriage on the side opposite from the cleaning head, and means for moving the carriage and cleaning head toward and away from the surface to be cleaned.

Abstract: In paper-making operations and the like, fibers of wood are frequently transported through piping as an entrainment in steam. An apparatus is disclosed for separating such entrainment and removing the fibers at one station and the steam at another station. Rotating blades give the entrainment a circular or rotating action whereby the heavier fibers move outwardly by centrifugal force to contact the wall from which the blades scrape the fibers and hurl them to discharge. The fiber-free steam is removed along an axial line perpendicular to the direction of movement of the separated fibers under the influence of a second set of blades.

Abstract: The speed of pultrusion can be increased and the quantity of pultruded products can be improved by using a polyester resin composition containing 4-10 parts of certain cellulose acetate butyrate resins per 100 parts of polyester resin.

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 process is provided for minimizing the deposition of materials like naphthalene and tar in the ammonia liquor coolers of the primary cooler in a by-product recovery process for coking carbonaceous materials. The ammonia liquor coming from the primary cooler, wherein it is used to cool the coke oven gas, has added to it light oil before it reaches the ammonia liquor coolers, where it is cooled indirectly with water. The addition of the light oil keeps the naphthalene and tar in solution at the lower temperatures of the ammonia liquor coolers, thereby reducing or preventing the deposition of the naphthalene and tar in the ammonia liquor coolers.

Abstract: In a slot-type coke oven battery, the sole flues side walls are constructed of two or more courses of clay liners. The sole flues also include a bottom liner means and are topped with rider tile. The intersections of the successive courses of liners are maintained in position by refractory cross-ties. Ports in the rider tile feature internal venturi shapes which enhance the flow of gases therethrough.

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 method of preparing coals for coking in a conventional coke oven includes agglomerating the loose coal, in combination with a binder, into flakes, mixing the flakes with non-agglomerated coal, and charging the mixture into the coke oven in the conventional manner. The method provides for the utilization in a conventional coke oven, of coals that are marginal in coking quality, greater bulk densities of the coal as charged into a conventional coke oven, acceptable shatter resistance and physical stability of the coke produced, and acceptable carbonization pressure on the coke oven walls.

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: Aqueous wood- and paper-treating solutions are provided of hexavalent chromium and, optionally, copper or copper-arsenic mixtures with aluminum halohydrates in an acid medium which provide increased water repellency.

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: Disclosed is an improved safety guard for use with sheet feeding mechanisms which is disposed between the feeding mechanism and the exposed feed roll nip of a mechanism for the processing of the sheet material. The safety guard includes a non-rigid, non-elastic member which prevents an attendant from inadvertently placing his appendages in the exposed nip of feed rolls while not interfering with the passage of the sheet material from the feed mechanism to the feed rolls of the processor. The safety guard adjusts automatically and instantaneously as the width of the sheet material changes to shield the variation in exposure.

Abstract: A one-spot coke quench car is provided with a coke pile dispersement means to evenly distribute the coke within the car to permit additional coke to be accommodated and as an aid in more uniform quenching. The car has a sloping conduit therein and an exterior water metering valve that is fluidly connected to a pressurized tank of water mounted on the quench car frame. A small quantity (about two gallons) of water is pressurized in the water metering valve which can be opened to allow the small quantity of water to flow immediately and almost instantaneously through the sloping conduit and into the pile of incandescent coke. The water suddenly flashes, explosively, into a large volume of steam, expanding rapidly to disperse the coke within the quench car so that it is more nearly level therein.

Abstract: An improved composite feeder belt for use in transporting and handling minerals or the like wherein the belt is comprised of a low modulus, abrasion resistant urethane containing a reinforcement of free floating, spaced encapsulated yarns. The yarns are woven in the form of a scrim and are treated to prevent penetration of the liquid urethane into the filament bundles during manufacture of the belt and also to inhibit adhesion of the urethane to the yarns.

Abstract: A breast wall construction of a blast furnace hot blast stove includes a free-moving vertical arch composed of reverse wedge interlocking refractory shapes which form a monolithic unit upon differential heat expansion of the breast wall when the blast stove is operating in the on-gas mode.

Abstract: Herein disclosed is an improved method of kiln drying architectural grade plywood and lumber which has been treated with a water borne agent. The improved method utilizes coated wire mesh as the kiln stickers. Use of the coated wire mesh stickers greatly reduces the incidence of sticker marks on the decorative faces of the plywood and lumber.

Abstract: A wet seal standpipe cap to eliminate standpipe cap leakage includes a generally circular cap which has affixed to the underside of the cap a plurality of baffle rings. The cap is sized to enclose an opening in the top of a standpipe, and permit one of the baffle rings to penetrate a liquor contained in a canal placed around the standpipe opening providing a wet seal. The cap, in cooperation with the canal, entraps any leakage from around the standpipe opening between one of the baffle rings, underside of the cap and contained liquor.

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: 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.