Abstract: A chamber of an actuating mechanism is hydraulically connected to the under-the-piston cavity of the cylinder adjacent to the housing of a pulsator. Built into the piston is a spring-loaded valve serving as a device for compensating for the leakage of liquid from the chamber and for protecting the latter against overload pressure. During the operating stroke of the piston, the valve is brought in contact with it by an eccentric, and in case the pressure is increased or it is necessary to compensate for the leakage of liquid, a clearance is formed between the valve and the piston for the liquid to pass the direction of the liquid flow being dependent on the pressure differential on the valve.

Abstract: A hydraulic braking force multiplying device has a:A body coupled to a master cylinder;A projecting portion provided in the body and projecting toward the master cylinder;A cup-shaped power piston one open end of which receives the outer periphery of the projecting portions slidably and sealingly relative thereto, and the other closed end of which is adapted to actuate a piston of the master cylinder;A working chamber defined between the power piston and the projecting portion;A bore extending through the body and coaxial with the piston of the master cylinder;A valve member slidably fitted in the bore and having one end extending into the working chamber;A spring urging the valve member in the direction away from the working chamber;A bore provided in the valve member coaxially therewith and communicating with the working chamber;A first pressure chamber defined between the bore of the body and the outer periphery of the valve member and normally communicating with a pressure source;A normally closed first v

Abstract: A pressure transducer formed as a three-dimensional body is rendered flexible in order to permit fine adjustment of a machine tool seat formed thereon by the formation of holes and slits in the transducer body which cause portions of the body to operate as spring-like webs. An expansion box is located within the transducer and a pressure transmitter separate therefrom is connected thereto to enable pressure from the transmitter to be applied to the expansion box to cause flexing of the transducer body and fine adjustment of the position of the tool seat. Because of the particular arrangement of the holes and slits in the transducer body, the tool seat is able to be moved parallel to itself during the adjustment process.

Abstract: In a power-operated hydraulic booster for a vehicle braking system pressurization of a power chamber in a housing on one side of a boost piston is controlled by an assembly of at least two separate spool parts which work in bores in the boost piston and the housing, and a boost chamber is defined in the housing between the power chamber and an output piston having an effective area less than that of the boost piston.

Abstract: A gas dissociation solar thermal power system in which SO.sub.3 in a solar furnace is heated by a sun ray reflector. The SO.sub.3 dissociates into SO.sub.2 + O.sub.2 + absorption of heat. The SO.sub.2 + O.sub.2 gas is directed through a salt-heat chamber where it recombines into SO.sub.3 and gives off heat. The SO.sub.3 is directed back to the solar furnace and repeats the cycle. Useful heat is taken from the salt-heat chamber for operation of an electrical generator or other desired equipment.

Abstract: A brake actuating assembly for actuating a master cylinder having a power assistor comprises a brake pedal pivotable about a pivot point at one end and connected at a point intermediate its ends to an actuating member of the master cylinder, movement of the actuator member also actuating the power assistor, the pivot point being connected to a piston of a fluid motor operable in response to the operating pressure of the power assistor the arrangement being such that in normal operation the pressure of the power assistor actuates the piston to hold the pivot point in a fixed position but upon failure of the power assisting means the pivot point is moved to vary the pedal ratio, to permit the master cylinder to be operated without power assistance.

Abstract: In a servomotor having a first diameter piston concentric to a second diameter piston for supplying a braking system with a first pressurizing force and a second pressurizing force in response to an operator input. A transfer valve has a first face and a second face which are located on opposite sides of a radial bore in the second piston to receive a first pressurizing force. The transfer valve has an axial passageway therethrough which communicates relief or reservoir pressure to the first and second faces of the transfer valve to provide a balance pressure force on the same. A spring holds the second face of the transfer valve against a seat to prevent communication of the first pressurizing force into the relief chamber.

Abstract: A vapor generating system for use in a power plant having a steam turbine and a condenser connected in a series flow relationship, in which a vapor generating section receives a heat exchange fluid and passes the fluid in a heat exchange relation to a source of heat to raise the temperature and pressure of the fluid to predetermined values. The vapor generating section operates at substantially constant pressure during start-up and a pressure reducing station is provided for reducing the pressure of the fluid before it is passed to a plurality of separators in the main flow path for receiving the fluid and separating the fluid into a liquid and a vapor. The separators are connected to a vapor circuit and to a liquid circuit for passing the vapor and liquid to the turbine and condenser, respectively. A method of starting up a vapor generating system in a power plant.

Abstract: A substantial part of the superheating surface is shifted out of the pressure vessel and into the flow of exhaust gases from the gas turbine in order to reduce the size of the pressure vessel. The superheating surface outside the pressure vessel is located in the same housing as the feedwater preheating surfaces and can be bypassed by a suitable by-pass line. A supplementary burner can also be positioned in the gas turbine exhaust flow upstream of the displaced superheating surface.

Abstract: A cover for a retention chamber in a master cylinder reservoir which will permit a probe to pass through a tab and pressurize a piston in a pressurizing chamber with a test fluid under pressure. This test fluid will allow an operator to visually inspect the master cylinder for fluid failures at various pressures. In the normal operation, the tab of the cover will allow fluid to flow from a supply chamber into the retention chamber. However, during a brake application when fluid is transmitted through the compensator port as the pressurizing piston moves past the compensator port, the tab will prevent this fluid from being squirted into the supply reservoir. This will assure that a minimum quantity of fluid is always present in the retention chamber to operate the brake system even though a low fluid level indicator in the supply chamber presents a failure warning signal to the operator.

Abstract: A swash-plate transmission drive system including a rotary driven shaft, reciprocally movable drive shafts, a swash plate secured on said driven shaft, and sliding members, each having a flat surface engaging said plate and a spherical surface engaging one of said drive shafts.

Abstract: A device for utilizing wave energy that is otherwise lost, or spent in eroding shore lines and/or shore facilities, having a combined trough-turbine arrangement is disclosed. Inclined ramp means, curved and triangular deflectors, bucket-wheel combinations, and turbine guards combine with a flywheel to provide smooth-flowing power from wave energy. The interrelationships of the various parts reduces turbulence and increases the thrust of an incoming volume of wave energy, to rotate a shaft from which power can be derived.

Abstract: A pressure source for providing a stream of liquid at a substantial pressure. The pressure source includes pressurizing means such as a piston-cylinder assembly to which a force is applied to expel the contents thereof under pressure to form the stream. Weight means moving from an upper elevation to a lower elevation provides the said force. The pressure source also includes means to release, in discrete quantums of mass, the weight means for downward movement, in the preferred embodiments, without substantial impediment other than the pressurizing means. This provides sufficient force to supply a stream at a usefully high pressure, for example one which can drive a turbine wheel or a linear actuator at a useful velocity. In a preferred form, the weight means is a buoyant body, and the pressure source includes lift means to float the buoyant body to the upper elevation, and then to permit it to descend to the lower elevation.

Abstract: An arrangement for retaining an actuating member in an extreme position which has a connecting element held in permanent engagement with the actuating member and received between a pair of supports to which the connecting element is pressed by at least one coil of wire wound about the supports with an effort sufficient for retaining the actuating member in its extreme position. The wire is selectively connectable to a source of power so that the wire is heated up whereby the pressure of the supports against the connecting element is reduced, and the connecting element is released to move relative to the supports, thus releasing the actuating member, so that the latter moves through its working stroke.

Abstract: Means are provided to enable the main water pump of a Stirling engine to act as a mini-pump to cool the roll sock seals or rolling diaphragms when the engine is not running.

Abstract: In a hydraulic brake booster, wherein a body, to which is coupled a master cylinder, is provided with a projecting portion extending outwardly towards the master cylinder; a power piston adapted to operate the piston of the master cylinder extends through the projecting portion to define a working chamber positioned on the side remote from the master cylinder; a pressure chamber, to which is introduced a pressure fluid from a pressure source, is provided in the middle portion of the body; and a first valve which is normally closed for controlling the communication of the pressure chamber with the working chamber and a second valve which is normally open for controlling the communication of the working chamber with a reservoir are operated by means of a valve stem member and an input shaft adapted to operate the valve stem member; the improvement in which a stop slidingly provided within the pressure chamber and adapted to receive pressure from the pressure chamber in the direction opposite to the moving direc

Abstract: An expansion chamber is provided and heated heat exchange surfaces are disposed in the expansion chamber. An expandable fluid supply is provided together with structure for selectively admitting the expandable fluid into the chamber in good heat exchange relation with the heat exchange surfaces. Further, energy conversion structure is provided and communicated with the expansion chamber and operable to convert the energy of the fluid expanded in the chamber into mechanical energy.

Abstract: Fluid within a pressure chamber is displaced and pressurized by reeling a flexible cable or filament into the pressure chamber. A movable piston or similar pressure-responsive member in fluid communication with the chamber is moved by the displacement of fluid in the chamber, so as to perform useful work. The flexible cable or filament is wound on a motor-driven reel located in the pressure chamber.

Abstract: A regenerative heat engine designed to produce power for the operation of equipment such as an artificial heart is disclosed. The heat engine includes a temperature control heat pipe located around the periphery of the engine cylinder and a temperature distribution heat pipe located around the periphery of the heat source. A flywheel and bellows seal is included as part of the displacer piston drive, and a flexure support is positioned on the hot end of the displacer piston to allow the piston to move longitudinally while restricting lateral motion.

Abstract: The disclosure concerns a hydraulic slack adjuster useful in the brake circuits of railway as well as road vehicles, and improved brake circuits and apparatus particularly suited to the needs of railway rapid transit service. One type of circuit incorporates the slack adjuster in combination with a simple air-to-hydraulic booster and defines a portion of a service brake, and another type utilizes this apparatus in combination with a hand brake control unit and a double check valve and enables the brake cylinders to perform both service braking and hand braking functions.