Abstract: A microstrip array antenna, including spaced radiator elements supplied w microwave power and separated from an underlying ground reference plane by a layer of dielectric material, in which the antenna beam is phase scanned by periodically closing switching devices connected between the reference plane and at least one null point of each radiator element. In one embodiment, the radiator elements are identical rectangular patches disposed along a path, each patch having a length parallel to the path of one-half wavelength and a width transverse to the path not exceeding one wavelength in the underlying dielectric material at the antenna operating frequency. The patches are connected in series to receive microwave power by conductive strip elements whose widths are selected to effect a desired distribution of radiated microwave power from the patches.

Abstract: A free flight, impulse controlled missile system for directing a warhead to target. The system includes a small diameter weapon which relies on an accurate ballistic delivery to a point and attitude in space and a body fixed sensor for initiating a self forging fragmentation (SFF) warhead above a target such as a tank.

Abstract: A portable orbiting grinding machine to grind the gas check seat on 155 mm un tubes. The critical sealing surface is ground concentric with the chamber diameter. Instead of moving the gun tube to a specified machine tool, the portable grinding machine can be loaded on a specified tube for grinding the gas check seat then moved to the next tube to start the sequence again. A hydraulically expanded arbor grips the gun tube chamber diameter. An orbital spur gear assembly rotates on the expanding arbor extension and has a longitudinal travel on the extension controlled by a feed mechanism assembly. A removeable grinding quill is held by the spur gear assembly as it rotates. A sleeve type grinding wheel dresser assembly has a blade that may be mechanically actuated to bear against the grinding wheel and is spring loaded away from the grinding wheel when not in use.

Abstract: This multi purpose hand tool comprises a pair of double ended wrenches each ith an open-ended wrench at one end and a box wrench at the other end. The shanks of each wrench are preferably of circular cross section and each has a different sliding tool thereon. One of these sliding tools includes a hook adapted to engage the tie rod adjusting sleeves of automobiles to facilitate the adjustment thereof. The other sliding tool comprises an offset screwdriver with an adjustable lever arm. The wrenches can be attached to each other for safekeeping by means of a square stud on one of the sliding tools and a mating hole on the other sliding tool. The tool is designed for fast and accurate adjustment of automotive front ends.

Abstract: A gas generator for passing pressurized liquid monopropellants therethrough or causing exothermic decomposition of the monopropellants. A porous catalytic metal plate is used as the degeneration bed. The monopropellant decomposes exothermically upon contact with the catalytic plate. The porosity is obtained by making the plate from an alloy of the catalyst metal and one other metal, the other metal is then etched away by an acid that does not attack the catalyst metal. The porosity is controlled by the amount of other metal used. Surface areas of several hundred times the original plate surface area are obtainable. The mechanical characteristics of the metal plate allow for greater design flexibility than was available with decomposition beds made of refractory material.

Abstract: Disclosed is an observation system for military land vehicles, comprising ree television cameras and associated receivers. A first camera is located on a forward area of the vehicle for enabling the driver to view the area in the vehicle path. A second television camera is located in a protected area beneath the main gun; the gunner can use the second camera to train the gun on enemy targets. A third television camera is located at an elevated point on one of the trunnion walls for the main gun; the commander uses the third camera to search out new targets and enemy forces.

Abstract: Circuitry and a method for correcting errors in binary data which is stored n memory and subject to errors upon recall therefrom. The technique involves generating a redundant byte related to each original byte to be stored, storing both bytes in memory, and applying the recalled bytes to a decoder designed to correct the errors. If more than a single adjacent error per byte is expected, it is necessary to transpose the bits of the original and redundant bytes before storage so that the bits thereof alternate, and re-transpose the recalled bytes to their original sequence before application to the said decoder.

Abstract: There is disclosed an electromechanical device which uses a digital depth ge micrometer with a probe in combination with a read-out voltmeter to provide automatically recordable profiles of impacted crater sections. The circuit electrically connected to the voltmeter has a Zener circuit which transposes the mechanical movement of the probe to readable and recordable electronic signal information. In one example of its use the recorded data refer to the profile of an exploded metallic crater formed by the impact of a shaped-charge ballistic warhead.

Abstract: A retroreflector system which permits the superposition of wide-band dopp-shifts upon a signal incident on a retroreflective device before the search signal is reemitted and returned to the signals source of origin. The retroreflector system has a multisurfaced retroreflective device having at least one activated reflective surface along with other rigid surfaces in which the activated reflective surfaces have vibrational and/or rotational movement imposed thereon by modulating means to establish doppler shifted components to the reemitted search signal.

Abstract: A flexible harness for holding earcups in position about the ears of the rer which extends from one side of the wearer's head around the neck to the other side of the head. The harness, which is secured within a rigid protective helmet, has two U-shaped end portions and a nape portion. Drawstrings are sewn onto each side of each U-shaped end portion and are connected to the opposing length of drawstring by an adjustable fastener. The drawstrings engage a channel on the periphery of each earcup and allow for the vertical and rotational adjustment in the position of the earcup.

Abstract: A device for securing two missile sections together and allowing for quick ccess splice and separation of the missile sections.

Abstract: The air gap in the joints between millimeter wavelength, dielectric waveguide circuit components is filled with a slurry made from an inorganic dielectric, such as barium titanate; and an organic binder, such as cellulose nitrate. The proportions of the dielectric and binder are taken so as to have a composite dielectric constant the same as that of the components being joined. This removes breaks or discontinuities and in turn reduces the insertion loss at the joints.

Abstract: A device in a fiber optic system for variably attenuating the signal between optical fibers consisting of two fixedly mounted optical fibers and a moveably mounted reflective surface disposed therebetween. Light emitted from the face of the first fiber strikes the reflective surface and is redirected toward the collecting face of the second fiber. That amount of redirected light which will fall incident upon the face of the second fiber, within a predetermined angle to the optical axis of the second fiber will be transmitted through the fiber and be measured by a light detector. By moving the reflective surface calibrated amounts with respect to the faces of the fixed fibers, the amount of light incident on the face of the second fiber, and thereby transmitted, can be varied, measured and controlled.

Abstract: A beamrider guidance system for missiles wherein a laser beam is given two circular motions around the boresight axis to produce amplitude and phase modulation on the signal received at the missile. The information on distance from boresight is contained in the amplitude modulation and the angular information is contained as phase modulation. A laser optical system with a spinning holographic element provides one of the circular motions for the beam. The other circular motion is provided by a low frequency, circular scanning mirror.

Abstract: Misfit dislocation density at an InAs-GaAs interface is reduced in both I-GaSb and In.sub.1-x Ga.sub.x As-GaSb.sub.1-y As.sub.y superlattices grown on GaAs substrates by means of a MBE (molecular beam epitaxy) growth technique consisting of a step graded sequence of composition layers between substrate and superlattice whose composition changes in discrete concentration steps from the composition of the substrate to the composition of the superlattice.

Abstract: The device is made by growing thin-film layers of materials on a silicon strate. These layers are then removed selectively by photolitographic masking and etching, to produce a pattern which is a series of cantilever plates which are piezoelectrically coupled. An electrical signal connected to a first pattern of piezoelectric material will cause the associated plate to deflect. A second piezoelectric pattern on each plate will generate an electrical signal due to the strain caused by deflection of the plate, and this signal is transferred to a first piezoelectric pattern on the next plate, and so on down to the last plate where the signal is extracted.

Abstract: Cure shrink-resistant missile motor cases are disclosed along with their method for construction. These cases comprise a matrix resin composition which includes a bisspiroortho carbonate as a fourth component, a curing agent of o-phenylenediamine boron trifluoride etherate as a third component, butanediol diglycidyl ether as a second component, and equal parts by weight of diglycidyl ether of bisphenol A and epoxidized dimer of oleic acid as a second component and additionally, they comprise, in combination therewith, a high strength fiber reinforcement material selected from the group consisting of fibers of glass, graphite, and poly-p-ethylene terephthalamide (Kevlar). The specific bisspiroortho carbonate which achieves an expansion of the matrix resin on polymerization or curing is 3,9-bis(5'-norbornene-2'-yl)-1,5,7,11-tetraoxaspiro [5.5]undecane.

Abstract: A hand held and operated tool for quickly and accurately adjusting the idle ixture adjustments of multiple barrelled carburetors. The tool has a pair of screwdrivers with flexible shanks which can be applied to the idle mixture adjustment screws and turned in unison by turning a knob on a gear box, or the shanks can be separately turned to provide fine tuning of the idle mixture adjustments.

Abstract: A variable slot conductance dielectric wavequide antenna in which the transmission line and radiating aperture is formed in one continuous, integrated and homogeneous material. The radiated antenna beam pattern is controlled by varying the conductance of radiating slots using varied geometries for each of the slots.

Abstract: A dual focus objective lens and opposite linear polarizers associated therewith for providing a linearly polarized image at a first focal image plane and an opposite linearly polarized image at a second focal plane. A detector array is positioned at the first focal image plane which is closest to the objective lens. Each pixel site of the detector array has two halves with opposite polarities in each half wherein each half looks at opposite planes of polarization in the two image planes. One plane of polarization receives a focused linearly polarized image of the high spatial frequency target and low spatial frequency background and the other plane of polarization receives a slightly defocused image which contains a defocused image of the high spatial frequency target but a rather faithful reproduction of the low spatial frequency background. The two outputs from each half of the pixel sites are algebraically subtracted by processing electronics leaving a high contrast target image.