Abstract: In a submersible deep well pump unit, a plastic fluid intake base coupling the motor to the pump is placed in axial compression over its entire length by means of overlapping bolts respectively connecting the base to the motor and the pump, resulting in a low cost, corrosion and impact resistant pump-motor base.

Abstract: A two-stage pump which includes a pair of reciprocating pump members operating in opposed pump chambers and a connecting rod connecting the pump members to cause the pump members to operate in unison. Air under pressure is supplied to the chambers by a spool valve member which operates in a guide sleeve. The spool valve includes four outwardly extending portions defining a central pressure slot and a pair of exhaust slots. Ports in the sleeve communicate with the pump chambers. The spool valve is moved by pressure in pressure chambers at opposite ends of the sleeve member. The sleeve is mounted in a bore, and metering air passageways are formed between the valve sleeve and the bore and connecting the pressure chambers with the exhaust slots.

Abstract: Apparatus is disclosed for unloading excess pressures developed in a hydraulic diaphragm pump, wherein the pressure of the pumped fluid is sensed by a control diaphragm connected to an unloading valve which is placed in a passage connecting the hydraulic displacement chamber with a hydraulic oil reservoir.

Abstract: An oil lamp comprising a container containing a layer of oil on top of an incombustible liquid and at least one float in which is fitted at least one wick, wherein each float is arranged so as to rest on the oil-incombustible liquid interface, each wick having an initial length which is greater than the depth of the layer of oil so that in the floating position the said wick emerges from the said layer.

Abstract: A metering pump is disclosed wherein discrete, precisely measured quantities of fluid are caused, at predetermined intervals, to flow through a tubular conduit in the pump in response to the impingement of force or energy impulses against the wall of the conduit.

Abstract: An internal combustion engine comprises a compression and expansion casing having an operating member adapted to cause volumetric compression of fuel mixture and volumetric expansion of combustion gas and a combustion tube in which combustion of fuel mixture is effected at a constant pressure. The compression and expansion casing also has means communicating with the interior thereof for providing fuel mixture thereto.

Abstract: New combustors, and methods of operating same, which produce lower emissions, particularly lower emissions of nitrogen oxides. Methods and means are provided for supplying separate streams of air to primary and secondary combustion zones of a combustor, for removing heat from said primary combustion zone, and reintroducing said heat into the combustor at a region spaced apart and downstream from said primary and secondary combustion zones.

Abstract: An apparatus for converting water wave movement into power. A float is located in a body of water, and the apparatus converts the up and down movement of that float caused by waves in the water to operate a pump to displace hydraulic fluid through a hydraulic pumping station which actuates fluid motors, or the like to produce power. The force of the float movement is multiplied by a mechanical advantage so that the pump displaces the hydraulic fluid on both the upward and downward movement of the float even in calm water. A plurality of modules are interconnected to take advantage of as much of a wave front as desired.

Abstract: A magnetically driven centrifugal pump comprising an impeller rotatably supported in a casing by means of a hollow shaft; passage means including the through hole of said hollow shaft for conducting part of a fluid so as to cool said shaft; and an auxiliary pump for forcing the fluid through said passage means, thereby preventing the shaft from being thermally seized or damaged even when the discharge pressure of the pump suddenly drops.

Abstract: A gas generator or rocket motor is provided in which discrete and accurate time vs. flow output relationships or profiles are established by the rotation of a rotor located between the exit and its combustion chamber to various positions to select one of a plurality of primary nozzles or orifices of accurately calibrated predetermined flow characteristics through which pressurized gases from the combustion chamber are directed by passages in the rotor. The gases then flow out of the device through an exit comprising nozzles in the case of a rocket motor.

Abstract: A variable stroke compressor is disclosed that includes a casing with an upper and lower piston, the lower piston being connected to a piston rod and the upper piston being slidably received for reciprocal movement on the piston rod. Means are provided on the upper piston to control its descent towards the lower piston.

Abstract: The Blood Pump Tube Element will prevent the destruction of blood cells during a prolonged pumping of blood. The device comprises a series of interconnected bag-like chambers within a tube. The chambers fully contain fluid (blood) and each is provided with inlet and outlet valve means. The tube is engaged by a plurality of rollers mounted on rotating arms, thereby giving a peristaltic pumping action to the fluid in the bag-like chambers. Additionally, the position of the rollers on the arms may be adjusted.

Abstract: A hydraulic pump particularly suited for the extracorporal circulation of blood, having a readily replaceable and disposable pumping member is disclosed. The pump avoids injury to the blood cells and creates a minimum of turbulence during the pumping operation, thus limiting the buildup of fibrin.

Abstract: A double acting pump is operated by a crank that is powered through a gear train driven by an electric motor. An adjustable pressure sensing device is used to control operation of the pump. A single motor, double pump embodiment is also described.

Abstract: A cross-beam helicopter rotor wherein the pitch actuator shaft passes through an elliptically shaped hole in the unidirectional, composite helicopter spar, each of selected dimension so that the stress concentration factor across the spar at the hole is minimized when the spar is carrying balanced centrifugal blade loads. The shaft also passes through a centering pin which is supported in the spar hole by an elliptically shaped plug of selected dimension so that when supported from the spar hole by elastomer of selected shape factor, durometer and dimension, the plug and pin are load isolated from the spar and the stress concentration factor across the spar at the hole is substantially unchanged from that of the unplugged hole both during balanced and unbalanced centrifugal blade load operation of the spar, and so that the elastomer transmits unbalanced centrifugal blade loads therethrough from the spar to the plug and pin for centering the rotor.

Abstract: A tip turbine type fan particularly adapted for use to effect a substantially instantaneous inflation of an emergency lifesaving device such as an escape slide or life raft. It features a housing having an improved unitized construction which defines an axial flow passage. A rotor within and transverse to said passage is operated under the influence of fluid under pressure directed from a chamber formed within and circumferentially of the wall structure of said housing. Drive of the rotor induces air from the environment surrounding the housing to enter the flow passage at one end to co-mingle with the fluid furnishing the motive power for the rotor and to move therewith from the passage to the interior of a connected article to be inflated.It is a feature of a preferred embodiment of the invention that the entrance to the flow passage is bridged by a platelike closure device which is normally biased to a position to seal the entrance to said flow passage.

Abstract: A variable displacement pump, the delivery of which is controlled through the medium of a toothed rack meshing with a pinion through which the piston of the pump is adapted to slide axially, said piston being adapted to rotate jointly with said pinion and to move in translation jointly with pump actuation means, and the toothed rack meshing with an auxiliary shaft pinion the angular position of which is located by an indicating needle, thus ensuring a measurement of the delivery of said pump.

Abstract: An auxiliary automotive drive system consisting of a steam engine coupled through a clutch to an auxiliary pinion gear of a differential assembly to the drive wheels of an automobile.

Abstract: The pollution content, for example, CO and NO.sub.x, of exhaust gas from spark ignition engines is decreased by a reactor and also by retarding ignition spark (a) during engine-idling solely as a function of pressure downstream of throttle valve and (b) during engine part-load solely as a function of pressure upstream of . At engine full-load only the normal spark timing of the engine operates. In this way the minimum effective exhaust gas reactor temperature is quickly reached and maintained during idling and part-load, but the reactor is not overheated when engine is at full-load.

Abstract: A reaction turbine for burning fuel in a reaction rotor having jet tubes through which the products of combustion within the rotor are discharged, the turbine having air compressor stages turning with the rotor and delivering heated compressed air into the rotor, and the turbine having a fuel injector extending into a combustion chamber within the rotor to spray fuel into the chamber where it is ignited after mixing with the compressed air, the chamber and the rotor being specially designed to burn slurry fuel without being clogged or eroded by it, and delivering high torque with a relatively low mass flow.