Abstract: To provide for gradual turn-off of an ignition coil current control transistor, a control capacitor which provides turn-off current has its charge state changed gradually by means of an auxiliary transistor so connected to the capacitor that the conduction of the emitter-collector path of the auxiliary transistor is gradually changed, the main switching transistor being connected to and controlled by the auxiliary transistor and likewise changing gradually from conductive to blocking state in dependence on the gradual change in conduction of the emitter-collector path of the auxiliary transistor to prevent rapid turn-off of the main switching transistor and hence an undesired pulse at the secondary of the ignition coil which may induce continued operation of the internal combustion engine even though the ignition has been turned off.

Abstract: A torpedo has an acoustical system for detecting targets and directing the torpedo toward the target. An electric motor drives a cam that operates a switching arrangement that alternately changes the torpedo motor speed between fast and slow speeds. Upon sensing a target, the voltage applied to the motor driving the cam is increased to speed up the switching cycle and thereby shorten the duration of the slow and high speed intervals.

Abstract: 1. In an improved paravane the combination comprising;A body unit,A charge housing,Means for slideably engaging said charge housing with said body unit,A mooring line engaging means pivotally connected to and extending from s charge housing,An explosive charge disposed in said charge housing,A detonation means attached to said body unit and connected to said explosive charge for actuating said explosive charge upon a predetermined amount of relative movement between said charge housing and said body unit, andA locking means disposed in said charge housing between said mooring line engaging means and said detonation means for preventing relative movement between said charge housing and said body unit prior to movement of said mooring line engaging means.

Abstract: (U) A dual gate tracker and method for controlling the flight path of a missile having television camera in the nose thereof. The two gates respectively track the right and left contrast edges of the target within the field of view of the camera and the target center is determined from a combination of these two signals. The deviation of the determined target center from the center of the field of view of the camer is utilized for missile control. Means are provided to prevent the tracking of the same contrast edge by the two gates and manual control of the gates may be established to position and/or enlarge the gates for target acquisition.

Abstract: A solid state ignition system for an internal combustion engine is controlled by a spark advance means in relation to one or more parameters affecting spark quality. Supply battery voltage is monitored by the spark advance means whereby the latter generates control signals that regulate primary ignition current so that the latter attains a predetermined level before primary ignition current is interrupted.

Abstract: A transmission linkage construction arranged between a governor and a fuel metering device of an internal combustion engine with the linkage construction selectively positioning a control rod of the fuel metering device in response to predetermined speeds of the internal combustion engine sensed by the governor. The control rod is positionable at a plurality of positions defined between a maximum fuel filling position and a zero fuel filling position. The transmission linkage construction includes a pivotally mounted transmission lever operatively connected with the governor and the control rod of the fuel metering device by way of connecting linkages with the connecting linkage between the control rod and transmission lever being effected by way of an arm fixedly secured to the transmission lever at an adjustable distance from the pivot point of the transmission lever.

Abstract: The invention is a spark timing computer which includes a resetting device for forming a start pulse and a stop pulse which is electrically coupled to the reference angle detecting device, an integrator which is electrically coupled to a reference voltage which is reset by either a stop pulse or a start pulse from the resetting device, a peak detecting device for detecting and holding the peak amplitude of the integrator and being reset by a start pulse from the resetting device, a scaling device for scaling the peak amplitude of the peak detecting device which is electrically coupled to the peak detecting device, a comparing device for comparing the scaled peak amplitude of the peak detecting device with the output signal of the integrator and a triggering device for forming a spark trigger in response to a signal from the comparing device and for sending the spark trigger to a spark generator.

Abstract: A frangible container is pivotally connected to the sweep wire of mine sweeping equipment so as to intercept the mine mooring wire passing therealong and be pivoted thereby so as to connect thereto during the pivot motion and to be severed as the mooring wire continues to pass along the sweep wire, thereby providing a force to sever the frangible container to allow release of its tethered marker for floating to the surface with the buoyant mine when the mooring wire is severed, following the marker releasing operation.

Abstract: A hydraulic speed control controls the fuel rate to an internal combustion engine. A fluid pump pumping in proportion to engine speed provides fluid to a piston in a cylinder. The position of the piston in the cylinder is attaind by a balance between the incoming fluid from the pump and the fluid flow from two outlets. Resistance to flow from one of the outlets is controlled by an accelerator valve. The position of the piston is coupled to the fuel flow controller for the engine. An economizer retards the motion of the piston toward high fuel flow rates and aids the motion of the piston toward low fuel flow rates.

Abstract: A laser beam rider guidance system having a launcher based electro-optical subsystem illuminating a light receiver subsystem on board a moving carrier is disclosed. A launcher based laser beam transmitter assembly transmits a synchronization beam, an x scan beam, and a y scan beam to the laser beam receiver subsystem along a line of sight established by a sighting means. The synchronization beam, x scan beam, and y scan beam when received by the receiver subsystem are used in a timing mechanism to measure the x and y scan times from the missile's position to the line of sight; each of these times are multiplied by the scan rate in a microprocessor to determine x and y coordinate direction correction signals necessary to position the carrier on the line of sight to target.

Abstract: A laser beamrider guidance system having an improved launcher based laser transmitter subsystem for illuminating a laser beam receiver subsystem on-board a moving carrier is disclosed. The improved launcher based laser transmitter subsystem includes a boresight compensation mechanism having L-shaped x and y scan diode lasers and a synchronization laser, a rotating scanning means for producing two rotations of the laser beam images for each rotation of the scanning means, a zoom lens in the optical path of the x and y scan rotating lasers for focusing the laser beams within the maximum target range, a first beamsplitter for reflecting a portion of the x and y scan laser beams to a telescopic sight mechanism adapted to determine when the x and y scan laser beams cross the line of sight to target and activate a signal for activating the synchronization laser beam.

Abstract: A laser beam rider guidance system having an improved launcher based laser transmitter subsystem for illuminating a laser beam receiver subsystem on board a moving carrier is disclosed.

Abstract: Apparatus for directing electromagnetic radiation such as a laser beam in a gyro-stabilized direction. The apparatus includes a supporting means on which is fixedly mounted an optical lens having a predetermined focal length and also an element for either detecting the radiation when the apparatus is used to receive the gyro-stabilized beam or for emitting the radiation when the apparatus is used to transmit a gyro-stabilized beam. A mirror is also provided which is mounted on the axis of the lens and, via a cardanic suspension, to the support. The mirror is rotated in its own plane to function as a gyro motor and the beam of radiation is directed so as to impinge upon the reflecting surface of the mirror. Also, the mirror is located at a distance which is one-half the distance of the focal length of the lens from the focal plane of such lens, and the mirror is pivotable about a pivot point on the axis of the lens.

Abstract: This invention consists of a pair of modules containing silicon power rectifiers which are wired into the existing ignition system of an automotive vehicle so as to increase the sparkplug life of the internal combustion engine and increase the gasoline mileage thereof.

Abstract: An area signature detection system arranged to receive an output from a sensor operative in the electromagnetic spectrum, where the output from the sensor is an amplitude varying electrical signal representing the field-of-view beheld by the sensor, and to utilize this high frequency information in such a manner that low frequency scene content, necessary for area correlation processing, can be extracted and effectively utilized. Our invention involves certain highly advantageous techniques for generating area signatures from line scan sensors, and may be applied to cartesian, circular or polar scan formats. In one particular embodiment of our invention, we describe how orthogonally disposed area signatures can be used to generate area correlation tracking signals that can be used in the derivation of appropriate missile guidance commands.

Abstract: 1.

Abstract: A mechanical governor of a fuel injection pump for internal combustion engines is disclosed wherein a structure, which permits a reduction of the reaction force of a control lever as well as the tension of a balance spring, comprises a first support member fixed to the housing of the mechanical governor, a second support member pivotably mounted on a control lever, and a balance spring, one end thereof being connected to the first support member and the other being connected to the second supporting member.

Abstract: To provide for gradual decay of current flow through the primary of an ignition coil, and hence suppression of spurious sparks at spark plugs, a main switching transistor has its conductivity controlled by the conductivity of the emitter-collector path of a control transistor, the base-emitter path of which forms part of a discharge circuit of a control capacitor, which discharge circuit has a sufficiently high resistance to provide for gradual discharge of the capacitor and hence gradual transition of the conductivity of the control transistor.

Abstract: A control system for an internal combustion engine wherein the torque developed by an internal combustion engine is detected to provide optimum control of the ignition timing of the engine and thereby to ensure an improved engine efficiency as well as an improved fuel economy. The system comprises an engine torque detector for detecting the torque developed by the engine, a signal generator for generating signals used to periodically change the ignition timing of the engine, a phase discriminator for discriminating the phase relation between the output signals of the engine torque detector and the periodic change signal generator, and ignition timing control means for controlling the ignition timing in response to the output of the phase discriminator.

Abstract: An on board system for determination of slant range to a ground impact point of a ballistic vehicle. The system utilizes two infrared sensors viewing the ground at a very small divergent angle with respect to each other. The off axis displacement angle is small enough to enable viewing of infrared landmarks at low approach angles. The system utilizes a correlator to measure time delay between successive sensings of ground landmarks and slant range is computed without necessity of knowledge of any of the angles involved.