Abstract: A safety apparatus for use in fluid blending and dispensing devices wherein it is essential to insure that one of the fluids to be blended be maintained below a defined maximum concentration. The apparatus comprises a single valve located in the inlet line of the fluid to be controlled, which is operable upon detection of an increase in the flow rate of the fluid to be controlled or by a decrease in the flow rate of any of the other fluids with which it is being blended.

Abstract: A method of preparing bis(cis,cis-cyclo-octa-1,5 diene) platinum and palladium by reducing [Pt Cl.sub.2 (1,5-C.sub.8 H.sub.12)] or [Pd Cl.sub.2 (1,5-C.sub.8 H.sub.12)] in the presence of a solvent not having an active hydrogen atom, methods of preparing various other platinum and palladium compounds, some of which are novel from bis(cis,cis-cyclo-octa-1,5 diene) platinum and palladium, and methods of depositing films of platinum or palladium metal on a substrate by coating the substrate with various platinum or palladium compounds which are then decomposed.

Abstract: A fluid pressure regulator for delivering a gas, e.g. oxygen, from a high-pressure source, e.g. storage cylinder, to an apparatus, e.g. welding torch, at a lower adjustably controllable pressure. The regulator is characterized in that sources of combustible materials normally used for valve seating are minimized and destruction of the seat does not open the regulator to full source pressure. An improved pressure relief valve vents the regulator to ambient atmosphere in the event of either large pressure surges or elevated temperatures inside of the regulator, regardless of pressure.

Abstract: This invention relates to an anesthesia dispensing device which comprises a turntable for carrying a plurality of vaporizers having an inlet and outlet port for each vaporizer, and a manifold having a feed port and an exhaust port with a passageway capable of providing communication between the feed port and an external gas supply and a passageway capable of providing communication between the exhaust port and the exterior of the dispensing device. The turntable and manifold are supported for relative rotational and reciprocal movement so that a vaporizer can be rotated into position, engaged and disengaged by simple manipulation.

Abstract: This invention relates to an improvement in a process for treating a flue gas with a spiking gas containing sulfur trioxide. In this process, the concentration of sulfur trioxide in the spiking gas is maintained in a proportion of from about 0.15 to 1.2 mol percent, and the temperature of the spiking gas is maintained such that during any stage of mixing of the spiking gas with the flue gas, the resulting temperature of the mixture is not more than 10.degree. C below the dew point, the dew point being determined by equation.

Abstract: In the operation of a nitric acid plant, the rate of flow of process air to the converter in which ammonia is oxidized is controlled by injection of steam at regulated rates into the heated tail gas from the nitric acid production, thereby utilizing regulated mass flow power augmentation in the gas used for powering the expansion turbines employed in driving the compressors operated to furnish required process air at superatmospheric pressure to the nitric acid plant.

Abstract: Novel sound reproduction molding compositions of good processing qualities are disclosed, based on copolymer of vinyl chloride and propylene. Records obtained therefrom, have good audio qualities and resistance to impact, thermal warpage and water blistering. Because of their high heat stability, formulations based on the vinyl chloride-propylene (VC/P) copolymers can be employed in making sound records not only by the usual compression molding techniques, but also by injection molding.