Abstract: An invention is disclosed wherein one portion of conductor is fastened to a housing and another portion is movable. Fluid pressure applied through a passage forces the movable portion into contact with electrical terminals.

Abstract: Nacelle installation having devices for constraining hot core exhaust gas from flowing over the trailing portion of a highly swept pylon supporting a high bypass turbofan engine. The devices can comprise a pylon ejector, a core nozzle shroud or a plurality of vortex generators and are disposed generally in the region adjacent the intersection of the core nozzle exit of the engine and the pylon shelf portion of the pylon.

Abstract: A power supply monitor is disclosed for monitoring the finely regulated voltage in a two-stage tracking power supply which is driven by a gas turbine engine and which has a coarsely regulated and a finely regulated stage. A reference voltage is generated using power taken from the coarsely regulated stage and the reference voltage is compared with a voltage derived from an output of the finely regulated stage. If an unacceptable difference between the compared voltages is detected, controls are activated which prevent acceleration of the engine. The monitor is activated only after the engine reaches a selected speed and testing circuitry is provided.

Abstract: A maximum pressure selector device in which a valve ball is pressure actuatable in a chamber intermediate two cooperating valve seats of opposing input chambers. Positioned between the seats is a pair of orifices which connect the intermediate chamber to an output port. The orifices are of a predetermined size for allowing a predetermined maximum fluid flow rate therethrough for reducing surge flow. The valve ball is positioned in an encircling sealing arrangement centrally located in the intermediate chamber and is restricted to limited movement therein. The input chambers communicate with the intermediate chamber and thus with the output port, depending on the seating position of the valving element.

Abstract: A probe is disclosed for the nondestructive inspection of the interior walls of cylindrical recesses, comprising an elongated shaft having an ultrasonic transducer mounted thereon a predetermined distance from the longitudinal axis of the shaft and oriented for directing the axis of radiation of ultrasonic energy emanating from the transducer outwardly in a plane perpendicular to the longitudinal axis of the shaft. In another embodiment, the probe comprises a shaft having a lateral extension whereon a first ultrasonic transducer is mounted at a predetermined distance from the longitudinal axis of the shaft and is oriented for directing the axis of radiation of ultrasonic energy emanating therefrom parallel to a line formed by the intersection of planes perpendicular to the longitudinal axes of the shaft and lateral extension.