Abstract: An electrochemical cell for regenerating temperature sensitive solutions is described. In a preferred construction, the cell comprises a central electrode chamber and two counterelectrode chambers. To maintain the temperature of the electrolyte within a desired temperature range, the electrode in the electrode chamber is formed from at least one hollow tube through which a heat exchange medium flows. In a preferred construction, the electrode comprises a plurality of hollow tubes and a plurality of current collectors bonded to the tubes to form a grid-like structure.

Abstract: A process for preparing semicarbazide hydrochloride comprising the steps:(a) reacting an aqueous hydrazine solution with urea at a temperature from about 80.degree. C. to about 130.degree. C. and at a mole ratio of hydrazine to urea from about 0.9:1 to about 1.2:1 to form a reaction mixture comprising semicarbazide, water and alcohol-insoluble by-products;(b) removing substantially all of the water from the reaction mixture;(c) mixing a sufficient amount of an alcohol with the water-deleted reaction mixture to dissolve the semicarbazide and to precipitate said alcohol-insoluble by-products from the resulting alcohol solution;(d) removing said precipitated alcohol-insoluble by-products from said alcohol solution;(e) adding a sufficient amount of anhydrous hydrogen chloride to said alcohol solution to form and precipitate semicarbazide hydrochloride; and(f) recovering said semicarbazide hydrochloride from said alcohol solution.

Abstract: The composition of and method for preparing a novel catalyst is disclosed for use in the hydrogenolysis of methyl glycol formals. The novel catalyst is prepared by impregnating a porous alumina substrate with a solution of compounds of nickel and ruthenium, and evaporating and reducing the resulting slurry to provide a substrate impregnated with a catalytic surface composition comprised of a mixture of metallic nickel and metallic ruthenium. When this catalyst is used as the catalyst in the hydrogenolysis of methyl glycol formals, improved reaction rates in the formation of the desired glycol dimethyl ether are obtained.

Abstract: Disclosed is a process for producing a zinc pyrithione product having an acceptable white or off-white color and preventing or reducing discoloration of sodium pyrithione solutions by treating said sodium pyrithione solutions (which are precursors to zinc pyrithione) with an effective amount of a selected reducing agent to prevent or reduce the discoloration, said reducing agent selected from the class consisting of alkali metal sulfites, alkali metal bisulfites, hydrazine, and mixtures thereof.

Abstract: A process for removing chlorate ions from a recirculating anolyte brine as typically used in membrane chlor-alkali cells is disclosed. In this, a portion of the circulating brine after dechlorination and resaturation with additional alkali metal chloride is diverted and treated with a stoichiometric amount of hydrochloric acid to convert substantially all of the chlorate to chlorine gas and chloride ion. When performed in this manner, substantially lower quantities of acid are required as compared to prior art processes and the problems with the generation of ClO.sub.2 are minimized.

Abstract: An oxygen-scavenging and corrosion-inhibiting agent for fluidic systems comprising an aminoguanidine compound selected from the formula: ##STR1## or a salt thereof, wherein R is selected from H or a lower alkyl group having 1 to 4 carbon atoms; wherein X is selected from NH or NNH.sub.2 ; and Y is selected from --NH.sub.2 or --NHNH.sub.2.

Abstract: A multi-part sabot for maintaining roundness of shot pellets during launch and passage of the pellets through a smooth bore harrel. The sabot is a coaxial stack of at least two cylindrical wafers, each dimpled to individually surround and protect the shot pellants.

Abstract: A method and apparatus for assembling an optical fiber communication cable is disclosed herein. The cable has a tubular core formed from a strip of composite material. The composite material has a first layer of high strength metal or metal alloy, a plurality of electrical conductors formed by a material having a conductivity in excess of 50% IACS, and an electrical insulating material separating the first layer and the electrical conductors. At least one optical fiber is located within the tubular core.

Abstract: Isocyanate-reactive compounds are prepared by the reaction of a modified TDI distillation residue intermediate with a polyol. The modified TDI distillation residue intermediate is the reaction product of TDI distillation residue with a monohydroxylic compound. The isocyanate-reactive compounds are useful in polyurethane formulations.

Abstract: A casing for an electrical component comprises a metal lead frame having the electrical component connected thereto. A metal base member is bonded to one surface of the lead frame. A plastic housing member is bonded to a second surface of the lead frame. An adhesive seals and bonds the metal base member and plastic housing member to the lead frame so as to enclose the electrical component.

Abstract: In a rotary drum spray grainer there is provided a deflector plate overlying the spraying nozzles in the spraying zone to provide a drying zone where spray grained particles fall in a substantially uninterrupted downward path through the drying gas.

Abstract: A heat treatment for providing copper-tin alloys with a substantially continuous tin-phosphorous-oxide protective layer that improves the appearance and the tarnish resistance of the alloys is disclosed. The heat treatment comprises heating the alloys in a reducing atmosphere having a dew point of at least about 65.degree. F. and a temperature in the range of about 700.degree. C. to about 900.degree. C. for a time in the range of about 2 hours to about 24 hours.

Abstract: In a rotary drum spray grainer there are provided adjustable spraying nozzles in the spraying zone to achieve optimum spray pattern dispersion on the spray grained particles as the particles fall through the spraying zone.

Abstract: A process for rolling a metal strip for reducing its thickness and for increasing the maximum reduction attainable per pass using a cooperative type rolling mill comprises applying differential separating forces to the metal strip without changing the magnitude of the compressive force applied to the rolls. By doing this, the maximum strip tension and the forward tension required to pull the strip through the mill may be reduced. The maximum strip tension and the required forward tension force may further be reduced by driving at least one work roll at a desired value of torque as well as applying differential separating forces. The cooperative type rolling mill uses a roll spacing arrangement to space at least some of the rolls for reducing the separating force applied to the metal strip at selected roll bites. In addition, individual drive motors to drive the work rolls at desired torque values may be utilized.

Abstract: In an industrial lift truck there is provided a safety shield that is detachably mountable to the lift assembly of the lift truck and is interpositioned between the operator's compartment and the material to be handled to protect the operator from any spillage, combustion or explosion of the materials during transport.

Abstract: A method and apparatus are disclosed for fabricating an optical fiber communication cable having a metal containment tube and at least one optical fiber in static compression therein. The containment tube is preferably formed by applying a tensile load to a strip of metal and drawing the strip of metal through at least one forming die. Each fiber is inserted into the forming tube without the application of any significant tension. As a result, each fiber is in a substantially no-load condition at the same time that the strip is undergoing maximum plastic extension and said tube is undergoing elastic tension from the applied tensile load. Upon release of the tensile load, the tube will shrink and each fiber is placed into static compression.

Abstract: Disclosed is an improved polyurethane foam having cleaning and germicidal activities. The foam is prepared by mixing together a select prepolymer reactant and water, and adding to the mixture prior to foam formation a nonionic surfactant, a quaternary ammonium compound and a silicon-based surfactant. The resulting foam is particularly useful as a disposable wiping pad for household clean-up applications.

Abstract: A dual chamber bullet trap has a housing divided into two chambers by an impact plate that extends rearwardly and downwardly from the front to the rear of the trap. In one embodiment the impact plate is fixedly sealed to the housing thus defining a lower-forward chamber below the plate partially filled with water for receiving bullets deflected off the plate, and a second water filled chamber above the plate for stopping bullets which penetrate the impact plate when it fails due to repeated bullet impacts. When the impact plate fails water drains from the upper chamber indicating failure of the impact plate. In a second embodiment the impact plate is hinged along its front edge to the top-front of the trap and is free to pivot upwardly upon bullet impact to help dissipate bullet energy. The upper chamber contains a fluid filled container behind the pivoting impact plate. When bullets penetrate the impact plate they pierce the container allowing water to drain therefrom to indicate impact plate failure.

Abstract: An apparatus or process for casting metals by electromagnetically forming molten metal into a desired shape by applying a magnetic field to the molten metal. The magnetic field defines a containment zone for the molten metal. The hydrostatic pressure exerted by the molten metal in the containment zone is sensed and in response thereto the flow of molten metal into the containment zone is controlled. This minimizes changes in the hydrostatic pressure.

Abstract: A process for casting a material comprising a coolant application device comprising a fluidized bed cooling system. A control system for the fluidized bed cooling system determines the most upstream position at which the fluidized bed contacts the material being cast. The control system is adapted to adjust the pressure differential between the gas used to fluidized the bed of particles and an opposing gas flow. The casting system may be a continuous or semi-continuous one and preferably employs an electromagnetic mold.