Abstract: An automatic multiratio drive transmission having an automatic shift control system with a speed and throttle position pressure controlled shift valve controlling shifts between the highest drive ratio and the next lower drive ratio. When the shift valve is in the lower drive ratio position, a normal speed pressure signal increasing with increasing speed acting on the shift valve overcomes an opposing bias force controlled by throttle pressure to upshift the shift valve to the higher drive ratio position at increasing upshift speeds for increased throttle positions and provides an upshift hysteresis force decreasing with increasing throttle positions to prevent shift cycling as the highest ratio is established in a short time period and after a longer time delay period reduces the normal speed related governor pressure in an amount equal to the upshift hysteresis force at full throttle so that the downshift speed is the same as the upshift speed at the full throttle position.

Abstract: An annular lubrication reservoir is mounted on the periphery of a rotatable shaft, the reservoir defining a fluid tight annular enclosure having one or more apertures through its outermost surface. Conduit means are connected to the aperture for conducting lubrication from the reservoir to a bearing surface. Valve means are mounted in the aperture to limit the lubricant flow to one direction, out of the reservoir toward the bearing surface. A piston pump is mounted in association with the apertures whereby on rotation of the shaft the piston is driven radially outward to force lubricant out of the reservoir through the valve and into the conduit.

Abstract: A lubrication pump and filter are mounted to an access cover for the final drive of earthmoving equipment together with necessary interconnecting lubricant lines. The pump and the filter can both be removed from the access cover without removing the other and without removing the cover. Both the pump, filter and lines affixed to the access cover can be removed or installed as a unit.

Abstract: Lubricating means for the transmission gear of a ship having a lubricating oil sump and a driven shaft, at least one lubricating oil pump having an intake connected to said sump and a delivery pipe connected to said transmission gear, an electric motor driving said pump and a ship electric supply system connected to said motor. The improvement comprises an additional lubricating oil pump having a drive shaft, a suction pipe connected to said sump and a delivery pipe. A clutch is interposed between said additional pump drive shaft and the transmission driven shaft. A branch pipe is interposed between said supply pipe and said clutch and transmission gear with normal pressure maintaining said clutch disengaged. A fall in pressure in the main lubricating oil supply pipe permitting engagement of said clutch kinematically-connecting said driven shaft to said auxiliary pump drive shaft to drive said additional pump.

Abstract: A system for supplying fuel to an internal combustion engine, the fuel supply being dependent on the driving condition of the engine, comprises two types of detectors for detecting engine driving conditions and a memory for generating a signal representative of the fuel injection quantity in response to the engine driving conditions. A time-control circuit generates a pulse having a time duration determined by the output from the memory and a fuel injector injects fuel into the engine in accordance with the pulse of the time-control circuit.

Abstract: A lubricating and damping system for mechanisms which undergo large changes in orientation during operation is disclosed. The system includes a scavenge compartment built into the housing of the system and a plurality of scavenge pumps mounted within the housing having separate inlets so located that at least one of the inlets is submerged within the lubricating oil regardless of the orientation of the housing with the oil picked up by the scavenge pumps delivered through deaeration means and into a collection tank. A lubrication pump draws the oil from the collection tank and supplies it for lubrication of the mechanism and for the damping means of the system.

Abstract: A fluid driven actuator for a neutron absorber in a nuclear reactor is of the piston and cylinder type. The actuator is located above the reactor core. Means are provided for alternately opening and closing a by-pass fluid flow path or passage through or across the piston within the cylinder. The flow path is closed when the piston and control rod is being raised and is subsequently opened to reduce flow resistance during insertion or scram. In the preferred embodiment, the piston is longitudinally movable relative to the piston or extension rod which connects with the neutron absorber. In one position of the piston, the by-pass path is open and in another position, it it closed.

Abstract: A thrust augmentation technique wherein a primary gas stream is directionally switched at a high rate to produce flow discontinuities in the interest of increasing efficiency. Apparatus in accordance with the invention includes a fluidic switch, particularly a controlled expansion thrust vector control nozzle, which delivers a pulsating primary gas stream to an eductor or lift surface.

Abstract: A fuel supply system for an internal combustion engine includes a pump having a control member movable by an actuator. The actuator is powered by an amplifier which receives a control signal from an operational amplifier. One input of the opertional amplifier is connected to a summing junction to which signals representing speed demand, actual speed and control rod position are supplied by three transducers. The signal from the transducer which indicates the control rod position passes by way a circuit means which ensures that a derivative of the signal is applied to the summing junction.

Abstract: In apparatus for controlling a lubricating device which is actuated by pulses of compressed air, the apparatus including a drive piston disposed in a cylinder to undergo reciprocating movement under the action of each such pulse and a control valve disposed between the source of such pulses and the lubricating device, the control valve is periodically opened to permit one such compressed air pulse to be delivered to the lubricating device only after a predetermined number of compressed air pulses have been produced, by means of a stepping mechanism which includes a reciprocating pump connected to be driven by the drive piston to supply, in response to each cycle of movement of the drive piston, a predetermined quantity of liquid, an actuating cylinder containing an actuating piston and arranged to receive each such quantity of liquid to move the piston in a unidirectional, step-wise manner so that the actuating piston advances through the cylinder in discrete steps as a series of quantities of liquid are supp

Abstract: A lubrication system is adapted for continuously lubricating a loose spline connection wherein a collar connects to a pair of shafts and axially spaced bearings rotatably mounting the collar and shafts in a closed housing. The collar is spline connected to the shafts and includes a lubricant chamber intermediate the spaced shaft ends fed by an axial lubricant passage across a control orifice in one of the shafts. Rotation of the shafts and collar causes lubricant entering the chamber to be centrifugally discharged through a standpipe extending part way into the chamber from a collar wall and thereby flow to the bearings.

Abstract: The disclosure shows an annular convergent-divergent plug nozzle for use with a jet engine which comprises an exhaust duct with a concentric plug spaced within the duct and cooperating therewith to form a throat which is followed by an annular exhaust outlet. Means, such as conventional primary flaps, are provided to vary the throat area, and a plurality of spaced secondary flaps are hinged to the duct downstream of the throat to form a secondary nozzle. The secondary flaps can be freely floating so that they assume a position that is determined by the pressure differential across the flaps, and the nozzle is designed so that the exit diameter defined by the secondary flaps is no greater than the maximum plug diameter. Additionally, a secondary concentric casing may be provided to handle bypass air and the secondary flaps may be hinged to the casing in a freely floating manner as above due to the pressure differential.

Abstract: Slurried rocket propellants and a spinning rocket motor wherein the propents have viscosities which enable them to form central cores when spun in spinning rocket motors, the motor having a diaphragm-like base plate which assists in transferring forward momentum through the propellant.

Abstract: A release apparatus, for example for releasing fire extinguishant, comprises an electrically-rupturable link such as, for example, an electrically-fired detonator; and a circuit responsive to a voltage applied to the apparatus to charge electrical energy storage means, such as a capacitor, while the applied voltage is in one state and at least partially to discharge the stored energy into the link to rupture the link when the applied voltage changes to another state, such as reversed polarity.

Abstract: The invention relates to a device for lubricating the guiding system of an internal combustion engine valve having at least one valve stem mounted in a guide. A first upper cavity communicates permanently with a second lower annular cavity through a conduit. The first cavity is selectively interconnected to a lubricant intake duct through a sliding valve comprising an annular groove on the valve stem. A third cavity between the intake duct and the slide valve provides lubrication of the upper portion of the valve guide.

Abstract: Hydrocarbons are formed of coal and water. The water is converted or dissociated separately into hydrogen and oxygen in a first chemical reactor by thermochemical and/or electrolytic processing. The resulting hydrogen is then reacted with the coal in a second reactor to produce the hydrocarbons. Residual carbon from the second reactor is reacted in a third reactor with oxygen derived from the first reactor to produce carbon monoxide. The carbon monoxide is reacted with residual hydrogen from the second reactor or hydrogen from the first reactor to produce additional hydrocarbons. The energy for the endothermic and/or electrolytic processing in the reactors and for auxiliary equipment of the apparatus is supplied by a very high-temperature, gas-cooled, nuclear reactor by heat interchange with the cooling gas, helium. The cooling gas operates through heat-exchange means which isolates the cooling gas from the processing apparatus.

Abstract: An ion exchanger which allows flow in both directions along a selected flow-path. A separator plate divides the exchanger tank into two chambers each of which has a flow-conduit so that flow may enter or leave from either chamber while prohibiting the resin particles from migrating from one side of the tank to the other. This ion exchanger permits a dual-directional flow-process to be practiced which results in immediate changes in the boron concentration within a nuclear reactor coolant system even if the ion-exchanger resins have not been completely equilibrated during a previous operation.

Abstract: Apparatus including an improved D.C. operated oscillator for an intermediate power source, a cooperating solenoid gas valve opening and safety shut-off circuit, and a spark igniter with automatic shut-down.

Abstract: The position of a control rod located within a nuclear reactor is sensed by an externally located position indicating assembly. The assembly includes a reed switch voltage divider circuit in which the individual reed switches are actuated in a 2-3-2-3 sequence by the magnetic field of a permanent magnet mounted to the control rod. The assembly averages the signals from the actuated reed switches and after amplifying the averaged signal transmits it to an indicator which provides an indication of control rod position. The voltage divider circuit may have a pair of parallel connected voltage dividers with individual sets of reed switches respectively connected thereto to provide a redundant circuit which will operate with one of the voltage dividers selectively disconnected.

Abstract: A portable pulsed signal generator which generates a low-frequency, high-ered signal from a constant direct current, low power source is disclosed as including an inverter for driving a plurality of motors which, in turn, actuate control switches by means of cams and cam followers associated therewith. A potentiometer driven by one of said motors, in turn, effectively controls the output of a direct current amplifier, with the varying direct current output signal therefrom having the alternate half-waves thereof polarity reversed by switch controlled relays, the switch of which is timely actuated by one of the aforesaid cams, cam followers, and other switches, respectively, so as to produce a low-frequency, high-power, substantially alternating current signal. After appropriate transduction said low-frequency, high-power, substantially alternating current signal may be employed for sweeping mines.