Abstract: A battery condition monitoring device which senses battery terminal voltage and creates a function thereof and tests that function against predetermined criteria and determines battery condition as a result of such tests. Further, the invention operates on the transient of the battery terminal voltage existant immediately upon the loading of the battery. The test is performed on the slope of the terminal voltage transient and a function of that transient during a test period is created, analyzed and evaluated against reference levels.

Abstract: An automatic frequency control circuit for frequency agile radar systems. Fundamentally, the invention utilizes two oscillators of different frequencies and which are controlled by the IF pulse envelope. The outputs of the oscillators are monitored until such time that corresponding transition points of the outputs coincide. A counter, receiving the output of one of the oscillators, is then decoded at the time of coincidence and the resulting value, being a function of deviation of the IF pulse from a desired frequency, is applied to the radar system as an error correction signal.

Abstract: A form for shaping softened glass on a full-contact mold without spalling or mark-off. The invention includes a base having a plurality of threaded rods extending vertically therefrom; each rod having a trunnion threaded thereon for adjusting purposes. The trunnions make engagement with support members which maintain a mold sheet for forming the glass. The support members may have clamps on them at each end thereof for purposes of securing the mold sheet. In a preferred embodiment of the invention a lubricated plane is provided over the forming sheet; the lubricating plane preferably comprising a powder-impregnated fiber glass sheet.

Abstract: A cargo container is presented wherein entrance thereto is made by means of two low profile bifold doors comprising upper and lower door sections. The lower door section is foldable onto the upper door section by means of a continuous longitudinal hinge interconnecting the two while the top door section has therein a slide and track arrangement whereby the folded door assembly may be stored atop the container. An adjustable shelf is provided with pin latches securable by means of metallic springs which allow a single operator to securedly engage or disengage the various pins and subsequently maneuver the positioning of the shelf.

Abstract: An annular carbon brake disk having cast metal keyslot reinforcement members which are shaped to intimately conform to the contour of the keyslots and to an adjacent surface area of the disk on each side of the keyslots. The reinforcement members are preferably investment castings of heat resistant stainless steel or other suitable metal and the walls of the reinforcement members are substantially thicker at the portion contacting the keyslot than at the other portions of the members. The keyslot reinforcement members may be used with either continuous or segmented disks.

Abstract: An improvement is provided for use in a wheeled vehicle having anti-skid circuitry associated with the wheels thereof. Fundamentally, the invention comprises a comparator connected to the anti-skid circuitry which products an output signal when anti-skid signals exceed a particular level for a predetermined period of time. The output of the comparator is operative for removing the application of the anti-skid control circuit from the anti-skid valves and for applying in its place a rudimentary anti-skid control circuit comprising a multivibrator of predetermined duty cycle. Thus, under all conditions, braking effort remains with the vehicle operator but under certain conditions is modulated at a predetermined rate by the multivibrator. Provisions are also made for returning the anti-skid system to normal operation in conjunction with the brake system when the output of the anti-skid system drops below the aforesaid particular level.

Abstract: A disk brake having a cylindrical drive member extending axially from one side flange of a wheel. The cylindrical drive member has axially extending keyslots which engage radially outwardly extending ears or keys on rotatable brake disks and cause the disks to rotate with the wheel. The keyslots are open at one end and have a reinforcement member bridging the open end of the keyslots to provide added hoop strength to the cylindrical drive member. The reinforcement member is preferably a circular metal band riveted to the periphery of the drive member adjacent the open end of the keyslots.

Abstract: Disclosed is an apparatus and method for determining the presence and position of a moving object within a static field. Basically, the invention utilizes a photocathode in combination with a storage mesh whereby a distributive charge may be stored upon the mesh indicative of light levels within the field. Positive and negative write operations are exercised at different points in time and are superimposed upon the storage mesh. The mesh is then read by means of deflection coils in combination with an aperture plate so as to sequentially scan the storage mesh and emit output signals correlated with the charges upon the mesh after positive and negative write cycles have been exercised. The invention incorporates the fundamental structures of an optical image correlator tube and an image dissector tube.

Abstract: A technique and apparatus for enhancing the data upon a film transparency is presented. The density characteristics of the object film are digitized and shifted to exponentially increase the magnitude and significance of the digitized data. This amplified data is then utilized for producing a second film transparency having increased contrast in accordance with the amplification of the original data. There is also provided means for offsetting the digitized data with respect to a fixed reference such that features of interest may be separated from their background before the final recording of the enhanced film.

Abstract: Disclosed is a unique high speed information processing system capable of storing and operating on large volumes of data without the necessity of complicated data file systems or sophisticated programming techniques. Fundamentally, the invention combines an associative processor having a content-addressable memory with a parallel disc magnetic memory. The disc memory is utilized for the bulk storage of data while the associative processor is utilized for performing logical and arithmetic operations on the data. Data transfers between the associative processor and the disc memory are controlled by a servomechanism and an interface circuit. The servomechanism guarantees that the disc memory will operate at a speed synchronous with signals created by the associative processor and the interface circuit, under the control of the associative processor, manipulates data transfers between the disc memory and the associative processor.

Abstract: A wheel speed transducer for sensing the rotational speed of a wheel about an axle which fundamentally includes a housing fixed to the axle and containing therein two permanent magnets. The magnets are arranged such that an elongated pole piece commonly abuts first surfaces of each of the magnets, such surfaces being of like polarity. Two inductive coils having flux-conductive cores axially passing therethrough abut each of the magnets on second surfaces thereof, the second surfaces of the magnets again being of like polarity with respect to each other and of opposite polarity with respect to the first surfaces. There are further provided two additional pole pieces, one connected to the end of each of the cores opposite the ends of the cores which abut the magnets.

Abstract: Disclosed is a cargo container of basically cubicle construction having a single door providing access thereinto and being secured to the container framework by means of a threeway latch assembly. Tie down fittings are provided about the lower portion of the interior of the container for securing cargo therein. There is further provided at the top four corners of the container hoist brackets providing means for lifting and maneuvering the container.

Abstract: A low wear disk brake assembly has a rotatable body and a fixed axle rotatably supporting the body. A stack of disks having splined portions are aligned alternatingly relative to the axle in the body with each disk characterized by being made from graphite and/or carbon materials such that the disks have flexural strength of greater than 5000 psi and an average interlaminar spacing of crystalline and amorphous carbon of not more than 3.39 angstrom units at 15.degree.C.

Abstract: Disclosed is a device for automatically focusing optical images wherein a rotating transparent disk having at least two sections of different focus delay characteristics is operative to pass a portion of an image carrying beam therethrough and onto a photoconductor. Output signals from the photoconductor are indicative of the degree of image clarity of the light incident thereto and these signals are passed to signal detector circuits wherein the signal resulting from light passing through the first section of the disk are compared with those signals resulting from light passing through the second section. The comparison of these signals is indicative of the degree of focus of the light beam and an error signal corresponding thereto is created from the outputs of the signal detector circuit.

Abstract: The invention resides in a carbonaceous aircraft brake disk having a reuseable lightweight carbon composite center core to which can be bonded lightweight composite wearing materials to each side. The wearing surface is particularly designed for wear loading applications, and is relatively thin thereby simplifying manufacturing and quality assurance steps. The center core is designed for long life and strength at relatively low cost. A carbon felt layer saturated with an adhesive is located between the center core and the lightweight side wear materials to form an integral disk upon pyrolizing of the adhesive.

Abstract: The invention is designed to produce a more economical means of closing drilled passage holes in hydraulic and/or pneumatic systems either during manufacture and/or repair. The process involves pressing a ball, or diametral portion thereof, with a diametral interference fit, and of similar material as the parent part to be sealed, into the drilled hole causing a seal of the hole by relying on the curvature of the surface of the ball or plug to plastically deform and maintain a depressional diametral seal within the elastic limits of the seal and the parent material for sealing, and then crimping the parent material to be sealed over the end of the ball or plug to maintain it in position against pressure blow out. Alternate methods of holding the ball in position might include a line spot fusing utilizing a current passing through the ball to make the bond permanent, or a ring furnace fusing and/or other such fusing and partial staking procedures to bond the ball in place as an integral part of the unit.

Abstract: A container capable of passing the temperature requirements of U.S. Defense Department Specification MIL-T-25783 B and C (ASG) Tank, Fuel Aircraft and Missile Non-Self Sealing High Temperature Removable consisting of an inner layer of polyurethane elastomer of 2 to 30 mils adhered to at least one ply of nitrile rubber coated polyester fabric, said ply of nitrile rubber being adhered to an inner side of a barrier layer of a polyamide epoxy resin mixture and a nitrile rubber compounded with phenolic resin being used as a tie coat between the barrier and the polyester fabric.

Abstract: Laminated container suitable for containing high-temperature lubricating oil which comprises a rigid container having adhered to its outer surface a laminate of outwardly successive adherent laminae comprising a first lamina of rubbery polyfluorohydrocarbon, second lamina of flexible multiple layers of coated textile fabric and, if desired, a third outer rigid lamina of multiple layers of polymer-encapsulated glass fibers.

Abstract: An anti-skid and brake control system for use on an aircraft wherein the output signals from standard anti-skid circuitry are combined with the signals from a brake pedal transducer to create braking signals. The braking signals are applied to current controlled hydraulic valves for regulation of the application and release of brake pressure. The brakes utilized are dual cavity brakes with corresponding cavities of all brakes being interconnected to the same hydraulic line. Shut-off valves are interposed in the hydraulic lines and are operative to enable the brake valves to regulate brake pressure when either brake pedal of the aircraft has been depressed a fixed amount. Biasing circuitry is presented to affect the brake signal in such a manner as to overcome a dead band within the response characteristics of the brake valves utilized.

Abstract: The invention relates to a unique solid state computer organization. Essentially, the system comprises a plurality of associative arrays wherein each associative array comprises parallel processing apparatus and a solid state memory capable of being accessed in either a word-oriented or a bit-oriented mode. The associative processor apparatus within each associative array provides for the parallel processing of data within the associative arrays in either of the two modes. Control apparatus within the system provides for the parallel control of the plurality of associative arrays at a speed conducive to the data processing speed of the associative arrays. Rapid speed of the control apparatus is economically achieved by the arrangement of a plurality of separate and characteristically distinct control memory elements.