Abstract: Copper-base alloys are disclosed which are characterized by unusually low melting points combined with good tensile strength and ductility in the as-cast condition, excellent founding characteristics, high hardness and strength in the as-cast plus heat treated condition, ability to be used as brazing alloys, and excellent wrought characteristics. These alloys can possess an attractive pale gold or silvery appearance as cast in sand, permanent mold and investment mold, and comprise the following constituents in the ranges and ratios specified:Percent by Weight Manganese 12 to 36 Zinc 4 to 28 Beryllium 0.10 to 1.00 Copper 50.0 + (10 .times. Be content) to 58.0 + (14 .times. Be content).Up to 2% lead may be usefully incorporated in these alloys to improve machinability.

Abstract: A gasoline powered motor vehicle is provided with a tilt rsponsive shut-off valve in its fuel line to shut-off gasoline flow from the fuel tank to the carburetor when the vehicle is tilted. The valve includes a tee shaped shut-off passage having a first branch and a second branch connected in series between the valve inlet and the valve outlet. A tilt responsive ball valve in the first branch shuts off gasoline flow when the vehicle is tilted in one direction, and another tilt responsive ball valve in the second branch shuts off fluid flow when the vehicle is tilted in the other direction. Each of the ball valves includes a ball cavity for storing the ball when the vehicle is in an upright position and a reduced diameter restrictive passage leading from the ball cavity to retain the ball in a deactuated position under normal operating conditions by providing a combination mechanical and fluid barrier.

Abstract: A structurally simple thermostat is disclosed in which a single rivet provides the mounting of all of the switch elements. The switch elements are located by the rivet and by a portion of the contacts substantially spaced from the rivet to minimize the affect of manufacturing tolerances in the positioning of the switch elements. A single terminal element supports the movable contact, provides a terminal extension and closes the switch cavity. The structure is arranged so that ceramic material can be used for the non-metallic parts with a minimum effect created by the relatively loose dimensional tolerances required in the manufacture of ceramic parts. The terminal member is formed with a shallow dish shaped projection which prestresses the rivet assembly to prevent looseness resulting from differential expansion.

Abstract: A load responsive hydraulic system uses a signal supply restrictor, a synthetic signal generator and a unique directional control valve to provide a signal fluid having a pressure magnitude which is at a predetermined value above the load actuating pressure of the system and which is called a synthetic signal pressure. The effective output of the system's pump is controlled by the difference between the pressure of the pump and the pressure magnitude of this synthetic signal pressure. During pressure operation of the system, the directional control valve applies the synthetic signal pressure to the pump control mechanism; and during standby operation, the control valve applies a signal fluid to the pump control mechanism whose pressure magnitude is not increased by the synthetic signal generator.

Abstract: A motor vehicle air brake system which includes a blend back proportioning valve which reduces brake sensitivity at low braking pressures and which allows full braking at high braking pressures. The proportioning valve includes a shuttle piston, a blend back sleeve, and a one-piece outlet diaphragm. The outlet diaphragm seals a reference chamber from outlet pressure and permits movement of the shuttle piston and blend back sleeve together as well as movement of the shuttle piston and blend back sleeve relative to one another. The proportioning valve also includes a one-piece inlet diaphragm which seals the reference chamber from inlet pressure and which provides a valving surface to open and close communication between the inlet and the outlet of the valve. In a second and third embodiment of the proportioning valve, springs are added to alter the proportioning characteristics of the valve.

Abstract: The cooking vessel has a laminated wall including one layer of a magnetic material having a thickness, determined in accordance with skin depth as a function of the operating frequencies of the cooking device so that the major part of the power is developed in the one layer and substantial penetration of the magnetic field produced by the device beyond the layer is prevented, and another layer of relatively high thermal conductivity material which promotes the uniform distribution of heat derived from the magnetic layer throughout the other layer.

Abstract: A refrigeration cabinet construction wherein refrigeration tubing is permanently secured to cabinet walls by a tube securing and insulating foam which is compatible with the use of prefinished cabinet panels and which avoids the use of mechanical tube fasteners or other means which would otherwise disturb the appearance of the prefinished panels.

Abstract: A transfer for a forging machine is disclosed which is operable to progressively transfer workpieces laterally between spaced die stations on a die breast of the machine. The transfer mechanism includes first and second assemblies, each including transfer arms which are positioned on either side of the die stations closely adjacent to the plane of the die breast. The transfer arms are mounted for arcuate movement about parallel axes to provide opening and closing. Lengthwise movement of the arms is provided for the transfer of a gripped part and for return of the grippers. Each transfer arm carries workpiece grippers having finger end portions operable to grip workpieces at each die station as the transfer arms are translated toward each other. Guides are provided to cause the finger end portions of the workpiece grippers to follow paths substantially parallel to the plane of the die breast.

Abstract: The disclosed motor vehicle hydraulic brake system includes a master cylinder supplying fluid pressure to a front brake circuit and to a rear brake circuit. The rear brake circuit includes a proportioning valve which reduces the pressure supplied to the rear wheel brakes. The rear brake circuit also includes a control circuit. In the event of front and rear braking pressures exceeding predetermined pressure levels, the control circuit modifies the operation of the proportioning valve so that the proportional relationship of the proportioning valve closely approximates a 0.4g deceleration line until the theoretically ideal front to rear pressure relationship for the particular loading condition of the vehicle at the 0.4g deceleration rate is reached. The proportioning valve then closely approximates the theoretically ideal front to rear pressure relationship for the particular loading condition of the vehicle at all higher braking pressures and higher deceleration rates.

Abstract: A dispensing container is disclosed which includes a fiber tube, a metal top plate having an opening, and a plastic end closure received within the opening. The plastic end closure includes a stationary base and a movable tab, and the tab is movable relative to the base between an initially closed position and an open position and a sealed reclosed position.

Abstract: 2-[.alpha.-(2,6-DICHLOROPHENOXY)-ETHYL]-.DELTA..sup.2 -IMIDAZOLINE, AND PHYSIOLOGICALLY ACCEPTABLE ACID ADDITION SALTS THEREOF, WHICH PROVIDE VASOACTIVITY AND HYPOTENSIVE ACTIVITY.

Abstract: A belt drive system in a washing machine for bidirectional operation in selection of agitation and spin cycles and having a belt and pulley arrangement adapted to transmit full motor torque in the agitation direction and substantially limited torque through belt slippage in the spin direction whereby final spin speed is reduced in proportion to out-of-balance conditions existing in the spin tub. A motor drive pulley having heat barrier means is provided to isolate friction heat generated by belt slippage on the pulley rim from the motor shaft and to prevent damage to elements in engagement with the shaft. A method of calibrating a belt tensioning spring is also disclosed.

Abstract: A hydrogen pressure of the order of 1 atmosphere is established in the secondary salt circuit of a molten salt reactor so as to ensure that the hydrogen saturates the secondary salt and diffuses from the secondary salt to the primary salt.