Abstract: A method for fabricating a lens in which the lens composition is controlled by dynamic shaping and shadowing. A lens material is vaporized and directed to a substrate through an orifice which is rotating relative to the substrate about the lens axis and which has a non-uniform radial distribution. The lens material is condensed on the substrate to form a lens having a radially non-uniform but axially symmetrical distribution. Thereafter, the original orifice may be replaced by a complimentary orifice and another lens material vaporized and directed to the substrate through the replacement orifice which is also rotating relative to the substrate about the lens axis and which also has a non-uniform radial distribution. This second lens material condenses on the first condensed lens material to form a compound lens.

Abstract: A dual purpose probe for the simultaneous sampling of the voltage and curt at a test point. The device includes a capacitive probe for measuring voltage, and a small solenoid type inductor for measuring current when affixed so that it is at right angles to the wire being sampled. A small, double-sided circuit board has the inductor mounted thereon as well as a small metallic pick up plate which serves as one plate of a capacitor when the probe is affixed in the measuring position, while the conductor being sampled forms the other plate of the capacitor, and the insulation around the conductor serves as the capacitor dielectric.

Abstract: A propellant igniter that is controlled by temperature and is activated by cceleration. The igniter includes a booster or primer for igniting a propellant charge. A spring-loaded firing pin is cocked by a rotating sear that, when released, energizes the booster. Rotation of the sear is controlled by a plurality of springs one of which produces a moment on the sear that is a function of temperature while others, a plurality of captive springs, produce restoring forces that are inversely proportional to acceleration as detected by an acceleration sensor. When the captive springs are sufficiently relaxed by the acceleration sensor, due to an increased acceleration, to allow the sear to rotate, the cocked firing pin is released, the booster is activated and ignition occurs.

Abstract: A binary munition system comprising at least two non-explosive ingredients hat combine in flight to form a relatively safe explosive. The combination of said non-explosive ingredients for the purpose of forming safe explosives is novel.The binary munition stores the non-explosive ingredients in separate compartments which utilize membranes, bags or containers to facilitate the separation. The munition is equipped with means in which to rupture the compartments upon launch or fire. The purpose of the munition is to maintain separation of the non-explosive ingredients and to achieve mixing of the ingredients upon launch or fire of said munition.

Abstract: A device for protecting the fins of a projectile having a cylindrical houg with a closed base, a side wall and an open end, the closed base having a seat for transmitting a portion of the propellant forces used to launch the projectile to the fins, the open end having pivotably attached a number of petal enclosures in the shape of a frustrum of a right circular cone with a contoured surface at one end. A modified sabot retaining ring keeps the petals in a closed position against the projectile. Either a spring, a petal bell or an explosive is used for opening the petals after the projectile exits the muzzle end of a launcher.

Abstract: An electrooptical sighting system which provides a sight picture of a target in video display form to the gunner having an electrooptical telescope rigidly fixed to the muzzle end of a gun tube, a fiber-optic transmission link, a sense head for transforming the optical image transmitted from the telescope via the fiber-optic link into a digital voltage signal, a system controller for processing the digital voltage signal. The controller provides an output to a video monitor allowing continuous viewing of the target regardless of framing rate. A means for the multiple coupling of the optics of electronics thereby providing automatic magnification of the picture is also disclosed.

Abstract: A saboted projectile having an elongated sub-projectile having a double-r sabot mounted thereon. The sabot includes a main body portion having a radially extending forward scoop and a central bulkhead between which a toroidal-shaped cavity is formed. A self-sealing container extending between the scoop and the bulkhead encloses the cavity in which a solid propellant is contained. A through-hole, formed in the bulkhead, extends from the cavity to the rear surface of the bulkhead. The through-hole has an opening at the rear of the bulkhead for housing a blow-out plug. An igniter is mounted in the plug for igniting the solid propellant contained in the cavity after a predetermined delay. Ignition may also be achieved via pores or openings in the container which may contain a deterred propellant.

Abstract: A controlled rectifier firing circuit for the warhead of a missile located n a rocket powered test sled traveling along a track in a target vulnerability test range. The firing circuit includes a silicon controlled rectifier which when rendered conductive discharges a capacitor to fire a warhead detonator. A relatively high voltage DC source is coupled to the capacitor prior to sled travel toward the target. A second capacitor is also charged from the high voltage source and discharges through a resistance when an impact type actuator switch is closed at the time of detonation. The voltage developed across the resistor is coupled to the gate electrode of the silicon controlled rectifier which renders it conductive, causing the first capacitor to discharge through the detonator to fire the warhead.

Abstract: A fluidic gainblock for amplifying AC pressure signals having an additional lement known as a "T" junction added to the interconnection region between the stages of an LPA gainblock. Where normally there would be direct coupling between LPA's in a staged gainblock, there is now provided a path for the interstage flow noise and DC bias to exit prior to entering the next stage. This gainblock now allows as many stages to be added as needed in a gainblock as the elimination of the DC bias prevents the saturation of the gainblock. Interconnection flow noise is now minimized or eliminated completely and only the pressure signal is allowed to enter the next stage via the perpendicular branch of the "T" junction.

Abstract: A sound effects generator including a pair of digitally programmable sound generators, each of which is independently and dynamically controlled by a programmed digital signal processor through a control logic interface. Each programmable sound generator includes three intermediate signal channels providing respective digital noise and tone signals. Each intermediate signal channel, moreover, includes a mixer for blending the respective noise and tone signals as desired. Each intermediate channel output is also individually shaped or modulated by one of a plurality of distinct waveforms which digitally control the amplitude period and/or frequency thus generating an envelope of noise and/or sound to produce a particular sound or audible effect which is then converted to an analog output.

Abstract: A silencer and flash suppressor for sabot projectiles, which includes an accumulation chamber having a projectile entrance surrounding and closed by the gun barrel and a projectile exit which is spaced from the projectile entrance by a distance less than the projectile length. The projectile exit is the smallest diameter of an exit cone which is surrounded by an annular portion of the accumulation chamber, which portion may include one or more perforated baffles.

Abstract: A noise suppressor and stabilizer for a firearm having a number of fluidic scillator laminates each having a number of fluidic pressure controlled oscillators disposed thereon stacked and attached to the muzzle end of a firearm. The pressure controlled oscillators exhaust part of the propellant gases at a frequency either above the range of detection by the human ear or at a less sensitive region of hearing thus lowering the characteristic muzzle blast heard as the bullet exits the muzzle of the firearm. Additional laminates having the pressure controlled oscillators asymmetrically placed are provided to compensate for muzzle climb. Twist of the firearm is controlled by the placement of one or more twist compensating laminates within the stack. One embodiment of the invention provides for laminates of different internal dimensions forms expansion chambers within the noise suppressor.

Abstract: A method for producing an intensity contrast image from phase detail in a transparent phase object also removes spurious background artifacts and speckle from the light source resulting in clearer images. A laser beam or other coherent light source is directed through the transparent phase object and focused into a photorefractive hologram recording crystal where a temporary volume phase hologram is formed. Once the hologram has formed a phase conjugate beam is created and passes back through the transparent phase object and is directed to an apparatus which records an intensity background pattern consisting of coherent artifacts. The transparent phase object is then mechanically shifted or allowed to move on its own in the case of transparent living specimens. The light source is directed through the physically translated transparent phase object and focused into the photorefractive hologram recording crystal.

Abstract: A power supply having a low ripple component to minimize waste power and improve efficiency. In a full wave power supply, additional circuitry is provided for decreasing the time between charging episodes of the output capacitor. The circuitry is comprised of additional capacitors and diodes, and is connected between taps on the transformer and the output capacitor.

Abstract: A firing pin force transducer for use with firearms is disclosed. Impact of he firing pin on a simulated primer housed in a cartridge facsimile is transduced into an electrical signal by a foil strain gage and fed into a signal conditioner. The amplified signal is recorded by a digital oscilloscope allowing the operator to determine the force and energy expended by the firing pin.

Abstract: A liquid explosive composition having a density of about 1.282 grams/millter and comprising a mixture of (a) nitromethane, (b) trinitrotoluene, and (c) pyridine. Said ingredients being present in a weight ratio of about 60-64 parts nitromethane; 34-29.5 parts trinitrotoluene; and 6-6.5 parts pyridine.

Abstract: A monolithic microwave integrated circuit is enclosed within an ionizable gas filled housing having a terminal protection device integral with the circuit's substrate. A photon generating region extends within the substrate and along a portion of the surface area of the substrate for facilitating the ionizing of the gas. First and second electrodes, in contact with the substrate surface area and disposed on opposite sides of the photon generating region, have a plurality of cantilevered protrusions extending over the surface of the substrate and equally spaced from one another forming spark-gaps therebetween. One electrode is connected to an input to the device while the other is connected to ground.

Abstract: A portable seam resistance measuring apparatus having a housing with one or more flat exterior surfaces, a number of apertures, an indicator at the midpoint of the flat surface, two or more current injection probes, two or more voltage injection probes, a mechanical bias on the probes, a number of connectors, an electrical current through two probes and voltage measurement through two probes is disclosed. The device is used to measure the voltage drop across the seam of a wall enabling the resistance of the seam to be calculated.

Abstract: A sloop comprising a mast in the form of an A-frame with its plane athwartships. The luff of the mainsail is supported by a mainstay which is a thin wire or rod running from the apex of the A-frame vertically to a point on deck between the legs of the A-frame. This structure eliminates the turbulence along the leading edge or luff of the mainsail caused by conventional masts, and also permits a headsail to be closely hauled. The A-frame comprises one or more rigid horizontal spreaders and the mainsail boom and a spinnaker pole can be slidably mounted thereon.

Abstract: A mechanical pressure gage for measuring the change in fluid pressure resing from an explosive charge and the like. The sealed gage housing includes a plate member having a recess in which a metalic foil diaphragm means is frictionally mounted therein. The plate member has a wedged-shaped opening centrally located on the plate member and extending therethrough. The diaphragm means covers the wedged-shaped opening and is adapted to be mechanically deformed by a change in the fluid pressure within the housing. A cover plate for the housing also has a corresponding wedged-shaped opening and has scale marking located adjacent to the edge for measuring the extent of the rupture of the diaphragm means upon the fluid pressure change. Another plate member forms a back to the housing.