Abstract: A transparent tube for use in the cavity of the rotor of a high speed centrifuge. The tube is penetrable at its bottom end by a needle of a hypodermic syringe. The tube is open at the top and has a rounded bottom with an opening forming a passageway therein. A recess forming a shoulder co-axial with the passageway is provided both on the inner side and the outer side of the tube. A resilient plug having flanges at each end provides a tight fitting closure for the passageway and recesses.

Abstract: An ampoule holder receives a glass ampoule with a collar surrounding the ampoule neck to permit smooth breaking away of the ampoule tip at the collar. A stopper is inserted into the ampoule mouth and a bubbler tube is then inserted through the stopper and mouth into the interior of the ampoule to form a tight seal between the stopper and ampoule. A slit extending through the insertion portion of the stopper forms a vent passage for air flowed into the ampoule through the tube. The connection between the stopper and ampoule forms an integral ampoule assembly with the collar confined between the stopper and ampoule. The assembly may be placed in apparatus for conducting an optical analysis of liquid in the ampoule.

Abstract: A system of four cryogenic fractional distillation columns interlinked with two equilibrators for separating a DT and hydrogen feed stream into four product streams, consisting of a stream of high purity D.sub.2, DT, T.sub.2, and a tritium-free stream of HD for waste disposal.

Abstract: A process for evaluating the ionic state of the surface of keratin fibers, especially human hair, which comprises, taking at least one sample of fibers from the fibers to be evaluated, contacting the sample with an acidic solution of at least one acidic basic dyestuff, assessing what, if any, change in the color of the solution has taken place and attributing the ionic state to the surface of the fibers accordingly.

Abstract: The disclosed apparatus is of the type in which feed units feed air and hydrocarbon material into a reaction chamber, where they react to form carbon black. A filter then removes the carbon black. Disclosed is the provision of a mixing chamber between the feed units and the reaction chamber. The mixing chambers pass through a demountable hollow reactor cover through which there is circulated a heat transfer fluid for controlling the temperature of the mixing chamber walls. The mixing chamber can be common to a plurality of feed units or be separate for each feed unit.Also disclosed is a feed unit which has a vortex plate, an output nozzle, and a hydrocarbon spray nozzle, all mounted on a hydrocarbon supply tube which in turn is fixed to a demountable cover of the feed unit. This permits these components to be readily removed with the cover for replacement or service. The feed units can also have their temperature controlled by the heat transfer fluid for the mixing chambers.

Abstract: A container having a container tube with a central tube chamber and apertures at both ends with a resilient plug over each aperture, a weir extending into the central tube chamber.The container is useful for drawing blood and labeling it with Tc-99.The container is sterile and sealed at less than atmospheric pressure inside.

Abstract: In a fluidized bed reactor having a reactor vessel, two detector vessels are mounted in the reactor vessel near the inside surface of the reactor vessel in the fluidized bed and in the gas outlet region. Each detector vessel contains larger detecting particles and passes the gas in the reactor vessel. Pressure drop across the detecting particles is measured. The ratio of the two pressure drops represents the ratio of the fluid velocity and minimum fluidizing velocity under the operating conditions and can be used as control factor.

Abstract: A method of determining the alcohol content of air exhaled by a person using a flow through testing tube having an alcohol indicating material therein and a sampling tube to which the air is directed which has a material therein for retaining the alcohol of the breathing air and also using a suction pump comprises cooling the sampling tube, passing the exhaled air through the cooled sampling tube, measuring a volume of the air passing through the cooled sampling tube, heating the sampling tube and connecting the suction pump to the sampling tube to suck flushing air through the heated tube and then through the testing tube. The sampling tube advantageously contains a silica gel to retain the alcohol therein. The volume measuring device may be a measuring bag.

Abstract: An apparatus and method are disclosed for automatically monitoring the sodium concentration of a sodium amalgam by means of a wet chemical analysis in which a mineral acid is reacted with a sample of the sodium amalgam to generate an amount of hydrogen gas proportional to the amount of sodium in the amalgam sampled. The amount of such hydrogen gas produced is detected and displayed in units of sodium concentration. A thermal conductivity detector is preferred as the means for determining the amount of hydrogen gas produced.

Abstract: A toxic-monitoring material for the detecting and monitoring of toxic fluids placed in contact with or exposed to the monitoring material, which material comprises a solid, microporous, transparent, polymeric, matrix material having interconnecting micropores filled with a liquid composition, the liquid composition comprising a solvent for the toxic component to be detected and a reactant which reacts with the toxic component, whereby a toxic component dissolves in the solvent within the micropores and reacts with the reactant, to produce a change in color or appearance throughout the depth of the material, so that the detecting and monitoring of the toxic fluid may be determined.

Abstract: A process and apparatus are provided whereby sulfur and nitrogen oxides as well as carbon monoxides and unburned hydrocarbons are removed from internal combustion engine exhaust gases. The gases are passed through a chamber containing a sulfide and an oxide of iron, copper or zinc. The system is partially self-regenerating and can be used in conjunction with present catalytic converter units or in lieu thereof. In certain embodiments the present invention can also replace muffler units in exhaust systems.

Abstract: A gas-transfer tube assembly is used to extract charging gases through an orifice in the roof of one coke oven chamber and discharge the gases into an adjacent second coke oven chamber through an orifice in the roof thereof. Each orifice has a riser with an annular water seal normally closed by a removable cover. The gas-transfer tube assembly includes downwardly-extending tubular end portions with elbow parts that are selectively connected together by a straight mid-section used to change the spacing between the downwardly-extending end portions. The gas-transfer tube assembly is supported for vertical movement on a car that runs along a monorail supported by buckstays. The car is stabilized by rollers at the top of the car to engage a rail.

Abstract: An improved duct system is provided for collecting gases from the coke side of a battery of coke-oven chambers with vertical flues in which a coke guide is mounted for movement along the ovens on rails, in which the coke transport car is mounted for movement on rails along the ovens adjacent the coke guide, and in which a stationary main collection duct with a belt covered slot is provided adjacent the transport car rails. An extraction hood is provided for covering the transport car and connecting the discharge end of the coke guide with the transport car. The hood has an integral connecting line adapted to be connected between a gas collection duct above the coke guide and a gas transfer device movable on the main duct under the belt for directing the gases into the main duct. Also integral with the extraction hood are two gas outlet ducts, one on each side of the connecting line, separate from the connecting line, for connecting the extraction hood to the gas transfer device.

Abstract: A coke car is moved along a battery of coke ovens to a location for receiving coke from an oven chamber while the car is stationary and for moving to beneath a quenching tower. The coke car includes a generally square box-like container having side walls sealed with a floor that is pivoted about a horizontal axis to bear against seal members. The horizontal axis is spaced from the wall of the car adjacent the coke bench by a distance less than the distance between the axis and the wall of the car adjacent the oven platform. The seal members are disposed on the top of part of the floor which moves away from a side wall during pivotal movement and seal members are disposed on the bottom of a floor part which moves upwardly along a wall of the container during pivotal movement.

Abstract: To increase the temperature at which a tar separator operates which separates tar from condensate obtained by cooling coking gas produced by coking preheated coal, the condensate is preheated by heat exchange with the coking gas entering a raw gas cooler and is then admitted into the coking gas collecting main of the coking ovens, from which it passes to the tar separator. A method and an apparatus are disclosed.

Abstract: Regenerative changeover of a coke oven battery is designed for operation according to a method wherein each regenerative half period is broken down into a time when gas is supplied at a constant pressure to the burners in heating flues and a time when no gas is supplied. A final control facility acts on the regenerative changeover facility to enable the regenerative half period to be broken down into these two time periods. A controller is responsive to variations in gas properties, such as the calorific value, density, humidity and temperature, to bring about operation of the final control element so that the heating time and the pause in every regenerative half period have values such that the heat supplied to the battery in each half period remains constant.

Abstract: A dry coke quenching process comprises the steps of preheating a coke from a coke oven to a temperature of not lower than 1200.degree. C. by way of burning over its layer a combustible gas mixed with heated air, cooling the coke first to a temperature of not lower than 700.degree. C. with a mixture of hydrocarbons and water vapor, and then with an inert gas to a temperature of from 200.degree. to 250.degree. C.An apparatus for effecting the process of the invention comprises a chamber lined from inside with refractory brick and provided with a means for introducing a combustible gas and heated air to the upper part of the chamber and for discharging combustion gases therefrom. Provided in the middle part of the chamber are means intended for a heated mixture of hydrocarbons and water vapor to pass in therethrough and for a flow of the resultant gas containing hydrogen and carbon monoxide to escape therethrough.

Abstract: The process for the production of molded metallurgical coke from dried coal or fine coal mixtures with a low swelling index particularly highly volatile fine coal comprises mixing normal washed fine coal or fine coal mixtures of a grain size of from 0 to 10 mm and a swelling index of not more than 5 with a binder, pressing the mixture into briquettes, oxidizing the briquettes in a continuous material flow stream, and coking the oxidized briquettes continuously in an oven chamber by supplying indirectly and exhausting the coke oven gases with a temperature of 300.degree. to 1200.degree. C.

Abstract: The bulk density and throughput characteristics of coking coal are improved by treating the coal with a surfactant and a combination of fuel oil and alcohol or of solid lubricant and water, the surfactant being soluble in, and increasing the spreading coefficient of, fuel oil or water, as the case may be.

Abstract: The emission of halogens and sulfur dioxide and the formation of water-soluble compounds of heavy metals are suppressed in the pyrolysis of waste in a carbonization zone at a temperature in the range from 300.degree. to 600.degree. C. by adding a fine-grained basic material to the waste prior to completion of the pyrolysis of the waste in the carbonization zone.