Abstract: A reduced clearance system, or heat shield, for a coal, gas or wood burning fireplace having a cast iron surround, a hood and a grate, said heat shield including a sheet metal box, preferably a double wall sheet metal box with insulation between the wall members, having a base, three vertical sides, and a stepped top. Each of the sides has secured externally thereto a generally horizontal spacer bar. The front is open and receives the fireplace, the latter being secured to the shield by a clamping bar mounted on the front of the lower top step and side clamps. Each of the top closures has spacer bars attached thereto. The uppermost top portion has an aperture adapted to receive and retain a chimney system. Embodiments of this invention are safety approved.

Abstract: There has been provided a system and apparatus for recovering turpentine from a thermomechanical pulping process for making paper, which thermomechanical pulping process utilizes a plug screw conveyor for squeezing and feeding pulp chips. The thermomechanical pulping process is conventional. The liquid effluent from said plug screw conveyor contains an appreciable amount of turpentine. The liquid effluent is collected under superatmospheric pressure and flashed into vapor/liquid separator by releasing the pressure on the liquid. This vapor is condensed in a suitable condenser and the condensate collected in a decanter where the turpentine collects as a separate phase and the water also as a separate phase. Condensate from various vents in the conventional thermomechanical pulping process may be collected for more nearly compelete removal of turpentine and other oleoresinous components.

Abstract: There is provided an improved silica filler for resins which silica filler is coated or reacted with an alkoxyepoxyterpene silane. The resins containing such filler are characterized by improved dielectric constant and dissipation factor.

Abstract: There is provided a process and apparatus for making, preferably continuously, a catalytic converter element or core especially adapted for the treatment of exhaust from an internal combustion engine, whether spark or compression ignited. The converter element may be a fan-folded or accordion folded thin metal strip or a spirally wound element which carries strongly adhered to the surface thereof a catalyst, e.g. a noble or precious metal catalyst such as platinum and/or palladium and/or rhodium. The metal strip entering the process is an aluminum coated ferritic ribbon between 0.001 and 0.003 inches thick, and 1 inch to 30 inches wide. The strip is preferably annealed and perforated at predetermined intervals. Thereafter, the strip is corrugated and given a washcoat of a refractory metal oxide which is calcined onto the surface. One or more precious metal catalysts are supplied and dried.

Abstract: There is provided an improved process for producing a silica gel having improved pore volume relative to conventional silica gels which comprises the steps of gelling an aqueous alkali metal silicate with an aqueous acid, washing the resulting gel to remove salt or salts and acid, and soaking the gel in an aqueous solution of a water soluble aluminum salt to impart from 0.1% to 0.7% by weight aluminum on the dry basis to said gel, drying and reducing the particle size of the dried gel to from 2.0 to 15 microns, said particles having a pore volume in the range of 1.25 to 2.25 cm.sup.3 /gram. and a product produced by said process.

Abstract: Substantially completely deoxidized dispersion strengthened copper leads in incandescent electric lamps.

Abstract: A process, and product produced thereby, for making a normally solid triglyceride mixture of enhanced palatability and an SFI at 100.degree. F. less than 20 from a blend of a normally liquid solvent derived fraction from a high lauric fat, e.g., palm kernel oil, and substantially free of any combined fatty acid portion having a trans configuration, and a stearine fraction derived from a selectively hydrogenated C.sub.16 -C.sub.18 soybean and/or cottonseed oil having from about 20% to 50% of its combined fat forming acids in a trans configuration, and interesterifying or randomizing the blend.

Abstract: A boron-containing nickel or cobalt spray-and-fuse self-fluxing alloy powder containing hard precipitates of chromium boride and, optionally, chromium carbide which are internally precipitated from a melt of said alloy is described. Said alloy powder is made by atomizing the melt at about the temperature at which the melt is viscous, and is disposed for application to metal articles to form improved coatings thereon.

Abstract: An aqueous slurry of titanium dioxide characterized by the presence therein of amorphous aluminum hydroxide, and a process for producing the same.

Abstract: Disclosed are novel cyclic terpenoid amines which can be prepared by cyclizing the corresponding acyclic terpenoid amine.

Abstract: There is provided an endless conveyor characterized by a plurality of invertable material carrying pans. The invention is particularly concerned with simplified means for effecting inversion of the pans whereby both the upper and lower reaches of the endless conveyor may be utilized to carry material as for example in a dryer. Each of the material carrying pans is provided with a cam for coaction with stationary cam followers to effect inversion of the pan as it approaches the end of the conveyor for reversal of direction, and stabilizing cam followers for controlling the position the pan as it courses around the direction changing apparatus and enters another reach.

Abstract: A process is disclosed for improving the corrosion resistance of stainless steel powders produced by atomization in an oxidizing atmosphere whereby silicon present in the powder tends to form silicon oxides on the powder surface. The process comprises adding an effective proportion of a modifier metal selected from the group consisting of antimony, arsenic, and bismuth to the melt prior to atomization. The modifier metal addition is effective for decreasing the surface silicon oxides and thereby improves the corrosion resistance.

Abstract: A system and apparatus are disclosed for removing particles from suspension in a liquid, particularly for removing tall oil soap particles from black liquor. The black liquor flows along a fluid flow path (10) which runs between a source of black liquor and a skimming tank. Two electrodes (16, 18) are disposed one downstream of the other within the fluid flow path (10). A power supply (26) applies an electrical potential between the electrodes (16, 18). The downstream electrode (18) is connected to earth ground (36). It has been found that this earth ground connection (36) provides substantial improvements in the quality and quantity of recovered tall oil soap.

Abstract: A flow process is described for the chlorination of titaniferous materials. The process utilizes a special microporous carbon characterized by having pores with a pore diameter of less than 20 A. Improved reaction rates and completeness of reaction are achieved.

Abstract: The corrosion resistance of atomized tin-and-carbon containing stainless steel powders and compacts thereof is enhanced by incorporating a modifier metal into the melt prior to atomization. Effective modifier metals disclosed are niobium, titanium, tantalum, molybdenum, and the like.

Abstract: A process for making mixed 2- and 3-C.sub.1 -C.sub.10 alkyl-2-cyclopenten-1-ones from a corresponding alkylcyclopentadiene by epoxidation to the oxiranes, hydrolysis to the diols, dehydration of the diols and rearrangement of the resulting mixed alkylcyclopentenones. The resulting product can be used to make methylcyclopentenolone, a synthetic maple flavor.

Abstract: Vanadium impurities in chlorinated titaniferous materials are rendered easily removable by reacting said titaniferous materials with a high surface area carbon during the chlorination process. A process for preparing said high surface area carbon is also described.

Abstract: A sauce coating base for liquid phase application to a foreign comestible comprising a blend of a nonrandom triglyceride hard butter consisting essentially of C.sub.16 and C.sub.18 acids having by weight 25-55% saturated fatty acids, 30-50% transmonoethanoic acids and 15-40% cis-monoethanoic acids and a hydrogenated edible vegetable oil hving an iodine value of about 97-102 and characterized in that coatings made therefrom resist cracking at frozen food temperatures and resist smearing off at room temperature. Sauces prepared from these bases are organoleptically acceptable when heated to serving temperatures. The sauces can be applied in a conventional batter applicator.

Abstract: This invention relates to dispersion strengthening of metals. A coherent mass comprising an intimate blend of alloy powder and oxidant is formed prior to dispersion strengthening. Said coherent mass is easily formed because the alloy powder is not yet strengthened, and undergoes internal oxidation rapidly because of the intimate blend of alloy powder and oxidant.

Abstract: A process for dispersion strengthing of atomized alloy particles by internal oxidation is substantially improved by providing atomized particles substantially free of oxide surface film to enhance the efficiency of the internal oxidation step. The atomized alloy particles can be produced by dry collection to prevent oxide film formation, or alternatively, the oxide surface film can be removed by mechanical action removal or by chemical leaching.