Abstract: A decision circuit for use in pulse doppler proximity fuzes which will al the fuze to operate more effectively in the presence of electronic countermeasures and clutter by using an auxiliary receiving channel and threshold sensors.

Abstract: A magnetic pickup type electrical signal generator is mounted in cooperative relationship with the movable member of each fuel injector of an associated fuel injected-spark ignited internal combustion engine. In response to the initiation of actuation of the movable member to inject fuel into the combustion chamber of the corresponding engine cylinder, the magnetic pickup signal generator produces an output signal to which an associated electronic ignition system is responsive to produce an ignition spark creating potential. Each ignition spark creating potential is directed to the spark plug of the engine cylinder into which fuel is being injected by the actuated fuel injector.

Abstract: 37.

Abstract: An internal combustion engine having at least one cylinder in which at least one piston is reciprocable; the air, or air and fuel, induction being by means of an inlet port giving rise to helical flow of air, or air and fuel within the cylinder. In one form, the inlet port is substantially tangential to the cylinder. The cylinder may have a pair of pistons therein movable in unison to adjacent top dead center positions wherein they define with the cylinder wall, an annular combustion chamber.

Abstract: A pressure responsive fluid bag ejector including an elongated flexible bder means which is capable of containing a fluid and which has an outlet end for expelling the fluid; and the bladder being progressively structurally stronger toward its outlet end so that upon application of the pressure the bladder will progressively eject the fluid toward the outlet.

Abstract: A spinning projectile containing an electromagnetic ignition current generator, comprising a fuze housing with an inner generator component fixed at the housing and possessing an armature coil and an outer generator component provided with a field magnet. A bearing arrangement having two bearing bodies is housed in a recess of the fuze housing, one of the bearing bodies being arranged at the fuze housing and the other forming part of the outer generator component. Both of the bearing bodies are substantially ring-shaped and possess essentially the diameter of the field magnet and form a bearing means for centering the field magnet. The fuze housing possesses a wall portion which bounds the inside of the recess which is constructed as a circumferential groove.

Abstract: A four cylinder, two-cycle internal combustion engine for an outboard motor includes a pair of energy storage power capacitors. An engine driven alternator produces a generally sine wave output voltage having one-half cycle connected to charge one capacitor and the opposite half-cycle connected to charge the second capacitor by a suitable diode steering network. The output voltage frequency is greater than the firing frequency and a plurality of voltage cycles provide for charging of the capacitors to the desired level. A separate trigger capacitor is provided. The trigger capacitor is coupled to be charged from the main alternator through a low impedance network and additionally from the main capacitor charging circuit through a high impedance network which may also function as a safety circuit means. Each capacitor is recharged by a plurality of half-cycles and during such period of engine revolution the alternate capacitor is being finally charged and discharged.

Abstract: 1. The method of acquiring a target with a torpedo comprising the steps of launching the torpedo into a target area, causing the torpedo to descend in a substantially vertical direction, actuating acoustic transducer means in order to detect the presence of a target while the torpedo is descending in said substantial vertical direction, and initiating an attack mode upon acquiring a target.

Abstract: In a contactless capacitor discharge type ignition system for an internal combustion engine in which a timing signal coil is connected to a control gate of a switching thyristor for discharging a stored charge on a capacitor, a series circuit is connected across the timing signal coil in order to pass a controlled current in one direction. By the shortcircuit of current flowing through the coil, the output of the timing signal coil of the opposite direction is so influenced as to retard the spark timing, whereby the spark retard can be carried at a relatively high speed operation of an engine.

Abstract: An oil leak scavenger apparatus for collecting oil drippings of automobile vehicles which is mounted externally to engine crankcases, transmission housings, and other oil containing units is provided. The scavenger apparatus comprises: (a) an oil collector; (b) a reservoir in fluid communication with the oil collector; (c) a vacuum source in fluid communication with the reservoir; and (d) a vacuum metering valve positioned intermediate the vacuum source and the reservoir. In one embodiment the reservoir is also in fluid communication with the oil containing unit of the automobile, and a check valve is positioned intermediate the reservoir and the oil containing unit of the automobile thus allowing the collected oil to return to its source when the engine is not running.

Abstract: A semiconductor ignition system having a pick-up device for producing a.c. signals according to the speed of an engine, an ignition coil with a primary and secondary winding, a detecting device for detecting the output of the pick-up device, a switching device for controlling current flow to the primary winding in accordance with the output of the detecting device, and a control arrangement responsive to the ouput of the pick-up device for controlling the detecting device so that sufficient current flows to the ignition coil during high speed operation of the engine.

Abstract: A method and apparatus for controlling the ignition timing in an internal combustion engine. The angular position of peak cylinder pressure is measured and to the extent such angular position deviates from a preselected set point, the time of spark ignition is advanced or retarded to restore the position of peak cylinder pressure to the set point.

Abstract: A system for detecting the low frequency electromagnetic field radiated by lectrical and electronic equipment comprising field coils oriented perpendicularly to a missile axis.

Abstract: In an improved system for lubricating flyer sheave bearings of a wire buncher or like machine, consisting of a collecting ring wherein the lubricant is deposited into grooves of this ring, and by centrifugal force is conveyed to the bearings of a sheave located on the outer periphery of a flying disc.In present day strand wire forming machines, sometimes referred to as "buncher machines", it is a common practice to employ grooved wheels or pulleys, referred to as "flying sheaves". These sheaves are mounted on the periphery of large, high velocity rotating discs or arms in which the sheaves are supported for rotation by bearings of one type or another. This design has created a serious problem in bearing performance, due particularly to the fact that an adequate system for keeping the bearings properly lubricated has yet to be found.

Abstract: An electronic igniter circuit for an electric primer for the detonation of a pyrotechnical charge comprising a controlled semi-conductor element connected to the primer and a source of electrical energy to fire the primer when the semi-conductor element is rendered conductive. A condensor is connected in parallel to the source and the primer and a checking circuit for verifying the integrity of the igniter circuit and its elements is connected in parallel between the condensor and the primer. The checking circuit includes a voltage sensor which can be connected as a unit with the primer and connected via a cable to the igniter circuit at a remote location.

Abstract: In a first embodiment an improved, hydraulic-powered paving breaker is depicted in which a novel arrangement is provided for internally lubricating the breaker. In the arrangement an elbow taps off discharging pressured hydraulic fluid from the breaker and, through a manifold line coupled to fittings, which are in penetration of the housing of the breaker, admits hydraulic fluid into the breaker to lubricate a reciprocating plunger, moil, and O-ring seals. In an alternative embodiment, a conduit is formed entirely within the breaker for the same purpose. In both embodiments a restrictor device is interposed between the supply of pressured hydraulic fluid and the points of fluid injection to insure a uniform supply of fluid to the latter at a given prescribed pressure.

Abstract: Apparatus for lubricating and cooling the gripper band on a shuttleless loom in which a roller containing lubricant is resiliently biased against one side of the gripper band and driven by the movement of the gripper band.

Abstract: An ignition current generator for an electrical projectile fuze comprising a soft iron ring which, viewed in the direction of the projectile, is secured at the rear end face of a substantially ring-shaped permanent magnet which is axially displaceable. The permanent magnet, in a first position thereof, surrounding an induction coil and bearing with its front end face or surface against a flange of a soft iron core. This soft iron core is provided at its outer circumference with a groove in which there is located the induction coil. The stroke of the permanent magnet is of a size such that in a second position of the permanent magnet the induction coil is located externally of the magnetic field produced by the permanent magnet, and the permanent magnet also in its second position is located upon the soft iron core.

Abstract: In an oil spraying device for the delivery of oil admixed with compressed air, a connection means is provided to connect the ends of a spring which contacts the control flap to vary the torque imparted to the control flap. For this purpose, the spring ends are loosely coupled with the control flap and the housing so that the length of the spring arms effecting control may be varied to vary its lever action. The spring is also mounted outside the pivot axis of the control flap.

Abstract: A circuit for supplying clock or timing pulses to a projectile fuze, comprising an astable multivibrator possessing field-effect transistors and a supply capacitor for controlling and supplying the multivibrator. Between the multivibrator and the supply capacitor there is connected in circuit a resistor and parallel to said resistor there is connected a trimmer capacitor for stabilizing the frequency of the clock pulses.