Abstract: An amplifying pneumatic switch which is responsive to low pressure signals includes a first chamber for receiving an input signal from a first pneumatic pressure source at a first pressure. The first chamber includes a wall formed by a movable, highly resilient diaphragm. A diaphragm plate is disposed generally coextensive with the diaphragm and is responsive to diaphragm movement. A nozzle is coupled to a second source of pneumatic pressure and is sealable for generating a pneumatic output signal at a second pressure. A sealing mechanism including a lever and a plunger coact between the diaphragm and the nozzle for sealing the nozzle in response to the input signal. A spring is provided for biasing the diaphragm plate to a quiescent position in the absence of an input signal.

Abstract: A storage battery, particularly adapted for automotive applications, includes unique cover, venting and terminal constructions which, in their various embodiments, can accommodate virtually any automobile cable arrangement. Each of the several embodiments utilizes an identical container, electrode construction, intercell assembly and venting arrangement. Various types of exterior battery terminals, accommodating both conventional pressure clamps and threaded connectors, are connected to the battery electrodes through an intermediate primary cover. An outer secondary cover encloses the entire top of the battery, except for direct access to the exterior terminals, and the venting assembly is totally enclosed between the primary and secondary covers.

Abstract: An x-ray probe carrier for the inspection of circumferential welds in cylindrical pipes includes a carriage supported on omnidirectional ball transfers for movement along the bottom of a pipe section. A centrally mounted adjustable probe holder is preset to coincide with the centerline of the pipe for single exposure x-ray examination of a full circumferential weld. The probe is maintained centered during travel along the pipe and is automatically recentered after travel through a horizontal bend. The probe holder is easily adjustable for use in a wide range of pipe sizes.