Abstract: A valve system is disclosed in which sleeves providing an unbalanced area are arranged so that the unbalanced area is exposed to the zone of higher pressure and produces a sealing force between the sealing face of the sleeves and a mating valving surface, which force is a direct function of the difference in the pressure across the seal. Adapter rings are positioned behind each seal and a spring provides an initial light bias on the sleeve to urge it into mating engagement with the valving surface. The adapter ring and sleeve structure is arranged so that all of the sleeves, including those sleeves having an external unbalanced area, may be assembled in the valve body from the end of the sleeve receiving passage remote from the valving surface. The adapter rings also make it possible to use standard length sleeves in combination with relatively low cost adapter rings having lengths selected to provide a total sleeve adapter ring length which matches the length of the passages in the valve body.

Abstract: A starter motor housing comprising a tubular housing formed by an annular wall having a thickened wall portion adjacent the stator winding of the starter motor. The stator cores abut against and are secured to the inner periphery of the thickened wall portion to increase the flux path and, thus, the effective flux energy produced by the stator windings. However, the thickened wall portion is disposed intermediate radially reduced wall end portions to reduce the weight and size of the motor housing. Preferably, the tubular housing is an iron casting.

Abstract: An improved line-of-position radio navigation system is disclosed wherein a continuous wave signal produced by a local oscillator is transmitted from a fixed station. At a remote mobile station, the signal is received and is heterodyned with the output of a local oscillator at the mobile station to produce a signal having an audio frequency. The output of the mobile station's local oscillator also is synthesized to produce an audio frequency signal which is phase-compared with the audio heterodyne signal by a phase meter to generate line-of-position information. To adjust for any drift in the local oscillators, a transmitter at the mobile station is periodically activated for a brief interval to cause heterodyning at the fixed station. The resultant signal is employed to transmit a modulated signal from the fixed station which is processed at the mobile station to perform a phase adjustment to compensate for oscillator drift.

Abstract: A method of separating zirconium isotopes by converting the zirconium to its iodide salt prior to separation by usual isotope methods. After separation the desired isotopes are converted from the salt to the metal by the van Arkel-de Boer iodide process.

Abstract: A dental appliance has an elongated hollow tube within the interior of which is mounted for rotation an elongated drive shaft. One end of the tube is coupled to a handle as is the drive shaft which is driven from the handle in rotation. A head joined to the other end of the tube defines an interior cavity within which a hub is mounted for rotation about an axis disposed at an angle with respect to the drive shaft. Motion is translated from the drive shaft to the hub. An opening in the head enables the hub to be accessed through the opening. Included in the hub is a barrel section for securing a variety of dental attachments thereto. A seal is created between the opening from the cavity and the hub in order to prevent fluid flow therethrough. Lubricant is introduced within the tube and the drive shaft actuates an augar or the equivalent for propelling the lubricant into the motion translator.

Abstract: A device for producing metallic particles utilizing the Coanda Effect to draw one stream of gas toward another stream of gas flowing over a foil. Molten metal is introduced between the two gas streams, and the resulting interaction breaks up the molten metal flow into particles of appropriate size, shape, composition and the like. Various embodiments can be used for the process of producing cast articles, while other versions can be used for the process of coating and deposition of the particles in liquid, solid or partially solidified form onto a substrate.

Abstract: A tube is bent a desired angle by locating it over a mandrel, clamping the tube between a clamp die and bend die, rotating the clamp and bend dies through the desired angle, where extraction of the mandrel from the tube is initiated before rotation of the dies is completed.

Abstract: A time-shared bus for use with digital computers. The computers are structured around a high-speed bidirectional time-shared bus, whereby both address and data are carried on the same lines. In a typical configuration, one or more processors, one or more memories and one or more peripheral (I/O) devices are coupled in parallel on the time shared bus, and in addition are each connected by respective control lines to a resource controller. The bus is multiplexed at a relatively high rate, whereby a continuous series of relatively short time slots or windows on the bus are provided. These time slots are selected to be as short as reasonably possible, as required to allow the settling of the bus to each new state as set by the then transmitting unit on the bus and to latch the transmitted information into the receiving unit for that time slot.

Abstract: A method of making an energy-absorbing shock cell for mounting bumper devices on legs of offshore oil rig structures having inner and outer metal tubes connected by an intervening vulcanized rubber sleeve maintained under compression adhesively bonded to the inner and outer metal tubes. The shock cell is made by a series of operations in which portions of the metal tubes are coated with adhesive material, and the rubber sleeve is bonded to the adhesive coated areas by vulcanization and post-vulcanized heating.

Abstract: A method of making an electrochemical sensor is disclosed in which a liquid electrolyte such as sulfuric acid is blended with fumed silica in an amount sufficient to powderize the mixture. The resultant mixture is compacted under pressure between electrodes to form an electrochemical gas sensor.

Abstract: Apparatus is provided for measuring the flow of high temperature fluid through a main line. A shunt path diverts a portion of the fluid flowing in the main line. The shunt path is so designed as to thermally isolate a flowmeter positioned in the shunt path from the transfer of heat from the main line. The flowmeter produces an output signal. This signal, and one produced by a temperature sensor in the main line, are applied to a correction circuit which produces an output indicating the actual flow of fluid in the main line.

Abstract: Hydrogen sulfide and hydrogen cyanide are catalytically removed from air at room temperatures. Air containing H.sub.2 S and HCN in dilute concentrations is contacted with a dry, activated catalyst formed of palladium (II) and copper (II) salts such as chlorides, on an alumina substrate, at a temperature in the range of -20.degree. C. to 85.degree. C. The catalyst may also contain nickel (II) chloride.

Abstract: A strong-motion force-balance accelerometer system responsive to accelerations along the axis of its housing, and having an annular diaphragm fixed with respect to the housing normal to the axis, the diaphragm having a winding extending around the periphery of the diaphragm and forming with the diaphragm the proof mass of the accelerometer system, a transducer disc fixed to the surface of the diaphragm and operative to flex with the diaphragm and generate a voltage in response to displacement thereof, a magnetic flux path having an annular flux gap around the periphery of the diaphragm, the gap being occupied by the winding, and an amplifier circuit including a forward amplifier connected to receive the voltage generated by the transducer disc and to deliver an output signal in response to displacement of the diaphragm and the circuit including a feed back amplifier connected to said output signal and operative to feed back current to the winding tending to opposed displacement of the diaphragm.

Abstract: A control system for a low mass hydronic boiler is disclosed which includes a sensor for measuring the temperature of the fluid exiting the boiler. The level of fuel flow provided to the boiler is reduced when the water temperature exceeds a predetermined high temperature limit. The level of fuel flow provided to the boiler is increased only after the water temperature has decreased below a predetermined reset temperature limit and a predetermined interval of time has elapsed.

Abstract: An improved method of interconnecting cells in batteries is disclosed, where the cells are connected using lead links which straddle the walls separating the cells in the battery housing. Grooves are provided in the surfaces of the links which are adjacent the walls and multiple indentations are provided in the opposite surfaces of the links. The links are coated with a sealant which flows into the grooves under the force of capillary action and forms a gas tight seal between cells.

Abstract: A D.C. welder includes an engine-driven D.C. generator, a polarity-revers switch which can change the direction of current flow through the field winding of that generator to provide a positive or negative polarity at the welder output terminals, a circuit that automatically permits only uni-directional current flow through that field winding during the starting of the engine, and a further circuit that energizes a solenoid to close contacts which enable that generator to operate as the starting motor for that engine but which thereafter de-energizes that solenoid and then keeps it de-energized until the engine is at, or close to, rest.

Abstract: A method and apparatus for automatic rear loading of mandrel type tube benders. The bender includes a base, bending head at the forward end of the base, carriage for positioning a tube with respect to the bending head, and a mandrel rod supporting on its front end near the bending head a mandrel. The improvement includes the use of two separate clamps for gripping the mandrel rod with respect to the base, one clamp being located near the rear end of the mandrel rod and the other clamp at an intermediate point on the mandrel rod spaced from the first clamp a distance at least equal to the length of the tubes to be bent. The clamps selectively grasp the mandrel rod, at least one clamp grasping the rod at any given time, to allow a tube to be loaded onto the mandrel rod while another tube is being bent.

Abstract: An electric welder has magnetic cores with windings thereon which perform the functions of transformer windings as well as the functions of magnetic amplifier windings. The secondary windings, on each pair of those magnetic cores, are connected in series relation; and, similarly, the control windings on that pair of magnetic cores are connected in series relation. One of those control windings can have the voltage across it reduced to essentially-zero to cause a high voltage to be developed across the control winding on the other of that pair of magnetic cores--with consequent prompt saturation of that other magnetic core and with the development of an output pulse by the secondary windings on that pair of magnetic cores.

Abstract: A frame-type electrical connector for connecting leadless integrated circuit packages to a printed circuit board is disclosed. The connector includes a frame member having generally rectangular sides. A lead frame containing a plurality of flat conductive elements is molded in place in each of the sides of the frame. After molding, the conductive elements are shaped to form both pressure contacts and pin terminals. The pressure contacts are designed to contact the leadless package, and the pin terminals are designed to be soldered into the printed circuit board.

Abstract: A method for producing a porous plastic molded product of uniform, predictable porosity throughout. A fluidized airstream of moldable plastic powder is formed. Water may be injected into said fluidized powder airstream for maintaining said powder in a uniform, fluidized dispersion. The moisturized, fluidized, powder airstream is injected into a cavity of a closed mold to fill said mold cavity with said powder. The mold is maintained at a temperature and for a time sufficient to at least partially fuse said powder particles together without melting said particles, thereby to form a porous, plastic molded product. The mold is partially separated for cooling the product which is then discharged from the mold. The product may be further cured by heating the molded product in an oven at a temperature and for a time sufficient to cure said molded product without melting said plastic or glazing said product.