Abstract: The invention contemplates a unitary magnetically sensitive circuit element or network and a flexibly articulatable elongate assembly of a plurality of such elements or networks, with electrical interconnection of the same, such assembly being inherently suited to precision operation as a function of length, whatever the length selected for a particular application or use. In one application to liquid-depth indication within a tank, the longate assembly is merely inserted into the tube along which a float-borne permanent magnet is guided, and the magnetically sensitive element of each successive unit is actuated as the float tracks liquid level and is displaced from actuating relation with one and then to the nextadjacent one of the circuit-element units. The connection of circuit-element units is such that electrical-resistance observation from one end of the assembly provides a direct indication of the liquid level at which the float magnet is currently operative.

Abstract: A dual action trip and control valve is herein described which generally consists of a three way control valve which may be used to control the flow of fluid to and from a power piston. The valve is provided with a trip feature to cause the rapid dumping of the fluid from the power piston cylinder in response to the sensing of an emergency condition or the like.

Abstract: The invention contemplates an improved magnetically operative flow switch wherein the viscosity sensitivity of a flow-responsive movable metering member is materially reduced, as compared with past constructions. The improvement results from so devising a flow-metering passage through the movable member that such flow is taken only from the center and not from the wall of the inlet-flow passage in which the metering member is movable.

Abstract: The invention contemplates remotely operable lifting mechanism for selectively displacing a liquid-level float in a sealed tank, to permit checking of the operational status of the float throughout its displaceable range, and to permit check-out of magnetically operated electrical means actuated by the float at a predetermined float level within its displaceable range. The lifting force is coupled magnetically to the float without interference with the path of float movement and without interference with the magnetically operated electrical means.

Abstract: The invention contemplates a virtually hysteresis-free electromechanically actuated, valve, wherein an electrical input current is converted into a substantially rectilineal force or displacement, using a single electrical coil and two spaced and oppositely polarized air gaps. Similarly spaced, opposed parts of the coil are compliantly mounted for and constrained to move in the respective air gaps, the constraint being such as to develop substantially a unidirectional force and/or displacement which is in the plane of the gap-shrouded parts of the coil. The actuating mechanism is described in the context of an hydraulic-valve, with incorporation of a viscous-damping feature.

Abstract: The invention contemplates an improved flow switch providing an electrical output which is indicative of whether or not a predetermined flow or no-flow condition exists in an hydraulic line. In all its disclosed embodiments, the invention features simplicity of construction and a minimum of impedance to hydraulic flow, by reason of a straight-through flow alignment between inlet and outlet ports.

Abstract: The invention contemplates an improved electric switch which changes its state via float response to achievement of a particular liquid level. The construction features mechanical seal and shield structure whereby liquid is kept out of the region of float guidance, with the result that float response is substantially isolated from sloshing action and from liquid contamination.

Abstract: A bearing is herein described having an annular housing defining a bore. A plurality of arcuate bearing shoes are spaced within the housing bore in such an array to define a cylindrical opening for axially receiving a rotatable shaft. The shoe members are disposed in a generally free floating posture.Mechanical stops are provided for maintaining the shoes in a generally operational disposition while the shoes are still in a free floating condition. A spherical male and female combination of inserts are provided with their operational axis generally along a radius of the bore of the housing and located at the approximate center of the arc defined by each shoe. The male and female spherical members are then operable to provide universal movement about a point approximately at the center of the arc of each shoe so that each shoe is infinitely flexible to adapt to shaft variations.

Abstract: The invention contemplates a remotely serviceable filter of the type which accumulates a filter cake which must be periodically removed. An upper casing half is fixed, and a lower casing half accumulates the filter cake and is movable to a cake-discharge position, using first and second sequentially interlocked actuating mechanisms. Completely automated servicing of the filter is described.

Abstract: The invention contemplates a protective measure for internal parts of a gas turbine, whereby foreign objects in the flow of inlet gas to the turbine are subjected to strong centrifugal action at a locally frangible region of the inlet duct, i.e., prior to turbine exposure. The material and structure of the frangible region are selected such that foreign objects of greater than predetermined mass will rupture the same and thus avoid ingestion of such objects in the gas turbine. The invention is described for the case of a turbocharger which is operated by exhaust gas from an internal-combustion engine, and which supplies compressed inlet air to the engine; upon rupture of the frangible region, a rotor-bypassing flow is established to the gas-turbine exhaust for safe handling of engine exhaust and for use in prompt development of a suitable warning.