Abstract: 1. In combination with a vessel forming a rocket motor combustion chamber, a rubber-base liner having one surface firmly adhering to the chamber, the opposite surface of said rubber-base liner having a plurality of discrete powder grains partially embedded therein, each of said powder grains having a portion extending from said opposite surface of said rubber-base liner, and a propellant charge substantially filling the lined portion of said chamber, said propellant charge firmly adhering to said liner and enveloping each of said extending portions of said powder grains.

Abstract: A valve assembly for providing a measured amount of fluid under pressure from a bulk supply thereof. The bulk supply has a valved outlet which may be opened by a probe. The probe is slidably disposed in a valve housing which also contains a fluid measuring chamber. A valved outlet passage leads from the measuring chamber to an outlet adapted to receive a fluid line. The outlet passage and outlet are offset from the probe so that dispensed fluid does not pass through the probe or probe passage. The outlet passage valve is normally open but is closed when the probe is moved to open the bulk supply outlet valve. A rocking lever connects the probe and outlet passage valve to open and close the latter.

Abstract: A self-contained propellant gas generating cartridge for use in connection with safety systems utilizing inflatable confinements. The cartridge has a tubular body portion housing a propellant charge, a head portion at one end of the body portion in which is mounted an ignitor for the propellant charge, and a nozzle member closing the other end of the body portion. In one embodiment the tubular body and head portion may be metallic while in another embodiment they may be plastic. The cartridge may also include means to reduce the effective throat area of the nozzle when a fast deployment of the system is desired.

Abstract: An improved apparatus is provided for operating the sliding closure of a railroad hopper car in which the hopper has a discharge opening at its lower end. The sliding closure or gate has a pair of arms attached to and extending from the closure, a gear attached to each of the arms and an opening in at least one of the gears. The improved turning means for the gears includes an adapter for insertion in the opening in the gear, a holding means for the adapter, a worm gear mounted on the holding means and a worm mounted on a worm shaft for engaging the worm gear and a means for driving the worm shaft is provided. A housing is provided for the worm gear and adapter holding means and the turning means can be readily removed after use.The apparatus provides means for operating the closure without requiring manual force. The apparatus can be readily installed or removed and results in longer life for parts by reducing the frequency of replacement required.

Abstract: Novel alkoxysilanol cluster compounds are described having the formula RSi[OSi(OR').sub.3 ].sub.2 OH wherein R is hydrogen, an alkyl, alkenyl, aryl or aralkyl group and each R' is independently selected from the same group as R with the proviso that at least a majority of R' radicals are sterically hindered alkyl groups having at least 3 carbon atoms. The preparation of these novel alkoxysilanol cluster compounds is also described.

Abstract: A selected ammonium phosphate is reacted at elevated temperature and pressure with sodium hydroxide in a vertical column having vapor-liquid contact means to produce an alkali metal orthophosphate having a low alkali metal/P molar ratio which is substantially free of ammonia. Ammonia is taken overhead.

Abstract: Novel alkoxysilane cluster compounds are described having the formula RSi[Osi(OR').sub.3 ].sub.3 wherein R is hydrogen, an alkyl, alkenyl, aryl or aralkyl group and each R' is independently selected from the same group as R with the proviso that at least a majority of R' radicals are sterically hindered alkyl groups having at least 3 carbon atoms. The preparation of these novel alkoxysilane cluster compounds is also described.

Abstract: p-Fluoro-m-phenylenediamine is prepared by deoxygenation and hydrofluorination of m-nitroacetanilide by the reaction of m-nitroacetanilide with anhydrous hydrogen fluoride at a temperature of 0.degree.-230.degree.C under a pressure of 15 to 1,500 psia in the presence of certain sulfur and phosphorus containing deoxygenating agents.

Abstract: An electrode assembly is provided for use in electrolytic cells employing metal electrodes. The electrode comprises two electrode surfaces, positioned in parallel and having a space between them, and at least one conductive support having one end attached substantially perpendicular to the electrode plate and having a section attached along a side of the electrode surface. This section has a portion having a curvature from about 2.degree. to about 30.degree. from an axis substantially perpendicular to the electrode plate.The electrode assembly is employed in electrolytic cells for producing chlorine and caustic soda or oxychlorine compounds by the electrolysis of alkali metal chloride solutions.

Abstract: An electrode assembly is provided for use in electrolytic cells employing metal electrodes. The electrode assembly utilizes an electrode plate, an electrically-conductive surface and a conductive support having a first section attached to and substantially perpendicular to the electrode plate; and a second section substantially parallel to the electrode plate and attached to the first section and to the electrically-conductive surface.The electrode assembly is employed in electrolytic cells for producing chlorine and caustic soda or oxychlorine compounds by the electrolysis of alkali metal chloride solutions.

Abstract: A priming composition for use in ammunition, which priming composition contains as a frictionator and sensitizer ground metallic oxide particles, such as cupric oxide, in place of ground glass.

Abstract: A priming composition for use in ammunition, which priming composition contains as a frictionator and sensitizer ground zirconium oxide particles in place of glass.

Abstract: The rapid removal of dissolved oxygen from aqueous solutions is accomplished by treating the solution with an effective proportion of a liquid organic hydrazine compound. The method of this invention is particularly useful in the removal of dissolved oxygen from aqueous solutions such as boiler water, thereby inhibiting corrosion of the metal surfaces of the boiler.

Abstract: An improved apparatus is disclosed for the on-site generation of polyurethane foam. The apparatus comprises a timing device, which is readily accessible to the foaming operator, for accurately controlling the size of each foam shot.

Abstract: An improved anode adjustment means for mercury cells is disclosed in which a plurality of worm gears are employed to adjust the height of a plurality of anodes attached to arms secured to a central anode support member which is operated by the plurality of worm gear apparatus. Utilization of this novel worm gear apparatus eliminates the need for individual adjustment of each anode in the cell and thereby minimizes the overall operating costs.

Abstract: A process is provided for the preparation of 2-chloropyridine by the liquid phase hydrogenolysis of 2,6-dichloropyridine in the presence of a selected transition metal catalyst and a strong base.

Abstract: A diaphragm cell is provided having a continuous net between the anodes and the diaphragm. The continuous net permits the minimum anode-cathode spacing to be employed while maintaining uniform anode-cathode spacing throughout the cell. In addition, the diaphragm is retained and prevented from adhering to the surface of the anodes.Employing the diaphragm cell of the present invention in the electrolysis of aqueous alkali metal halide brines results in lower electrical energy requirements and reduced operating costs.

Abstract: Halogenated alkoxysilane intermediate compounds are described having the formula RSi[OSi(OR').sub.3 ].sub.2 X wherein X is a halogen, R is hydrogen, an alkyl, alkenyl, aryl or aralkyl group and each R' is independently selected from the same group as R with the proviso that at least a majority of R' radicals are sterically hindered alkyl groups having at least 3 carbon atoms. The preparation of these compounds is also described.

Abstract: An absorber-crystallizer tower is provided with improved means for spraying aqueous solution into a reactive gas to saturate the solution from which the product crystalizes and with improved means for removing scale from the crystal containing suspension which is formed. The apparatus has no scale sensitive internal surfaces and operates continuously without substantial scale build-up.

Abstract: Purified 3,4-toluenediamine is separated from a mixture of o-toluenediamine isomers containing principally 3,4-toluenediamine and 2,3-toluenediamine by crystallizing from a solvent selected from the group consisting of toluene, benzene and xylene.