Abstract: A low altitude optical range finder for measuring the range from an aircr or other vehicle to the sea, ground terrain or other object. A source of narrow beam ultraviolet light is attached at one point on the vehicle and illuminates the object. An electromagnetically deflecting image intensifier and photodiode array combination is attached to another point of the vehicle (remote from the first point) for measuring the angle of arrival of the reflected ultraviolet light and, thereby, the range to the object.

Abstract: A device and method for the concentration of parasite eggs and larvae consisting of separable upper and lower chambers connected by a mid-piece which incorporates a filter of stainless steel gauze. The sample is emulsified in the upper chamber and is filtered into the lower chamber. Ether is added through the upper chamber and the mid-piece and upper chamber are removed. The lower chamber is shaken and centrifuged, the mid-plug of debris is removed, and the tube is drained and swabbed clean leaving a small sediment containing the parasite eggs and larvae. The sediment is removed by extraction with Lugol's iodine or saline to dilute the sediment.

Abstract: A cargo aircraft conveyor system having palletized loads supported on a plurality of rows of roller conveyors positioned in spaced relation across the aircraft floor, with the roller conveyors being supported on bulkheads. The conveyor system includes load limitors to deform at a predetermined load or hinged spring loaded roller sets supported between pairs of bulkheads to redistribute the load and to transmit a more uniform load to the rollers and to the bulkheads.

Abstract: An acousto-optical method and device for measuring the radiation produced by a transducer is described wherein such radiation is in the range of about 500 KHz to 10 MHz. The method consists of propagating ultrasound frequencies from the transducer through a transparent liquid medium in a cell, said cell having a transparent window or suitable device to provide a clear path for the radiation waves and passing a light through said cell at about a right angle to the direction of said ultrasound wherein the light is modulated in phase with the frequency of the ultrasound. The modulation of the light corresponding to the frequency of the ultrasound can be detected by a photo-cell measured and displayed on various devices. Further, a transducer can be calibrated absolutely using this method and apparatus from known constants and easily measured quantities. Moreover, it is readily adapted to measure the radiation of an unknown source to a known absolute source.

Abstract: Cupric oxide is heat-decomposed in the presence of an oxygen scavenger, such as solid carbon, to produce high quality cuprous oxide suitable for use as a pigment.

Abstract: In an apparatus for installing resin anchored roof bolts in a mine roof, continuous bolt material is stored on a spool rotatably mounted on a mobile roof bolter frame. As the apparatus advances along the mine passageway, the bolt material is uncoiled from the spool and guided upwardly into spaced apart, resin filled holes that are preformed in the mine roof. The bolt material is severed just beneath the roof at each hole to form a unitary roof bolt. A stop is formed in the unitary bolt with a hydraulically operated head and mandrel mechanism that makes a right angle bend in the bolt just beneath the mine roof.

Abstract: A system for conducting a fluid from one component to another component of a nuclear reactor wherein at least one such component is a rotatable closure head plug capable of movement relative to the other component. The conducting system utilizes the annulus located between the components as a connecting passageway for the fluid.

Abstract: Lignites, which have high inherent water contents of 30-60% by weight, are treated with a small amount of a dispersing and/or viscosity reducing agent such as tetrasodium pyrophosphate to form a pumpable fluid which is easily transportable.

Abstract: This invention relates to a process for leaching broken or fragmented ore or metal-value containing bodies with a reagent-carrying foam. The foam is generated by adding a surfactant to a leaching solution and passing air or other gas through the solution to generate relatively stable foam bubbles which are propelled through the fragmented mass by gas pressure. The foam can be injected in cycles, allowing drain time, or can be injected continuously with the leachant drainage taking place at the periphery of the ore mass and removed continuously.

Abstract: Uranyl ion in solution in tri-n-butyl phosphate is readily photochemically reduced to U(IV). The product U(IV) may effectively be used in the Purex process for treating spent nuclear fuels to reduce Pu(IV) to Pu(III). The Pu(III) is readily separated from uranium in solution in the tri-n-butyl phosphate by an aqueous strip.

Abstract: The present invention consists of three process improvements in the so-called multi-step Piper-Montgomery process designed especially to produce the antifolate methotrexate which is closely related to both aminopterin and folic acid. 2,4,5,6-tetraaminopyrimidine sulfite is one starting material and is usually produced in the form of the bisulfite in an acetate buffer. The present modification positively produces the hydrochloride from the bisulfite and eliminates the acetate buffer utilized in prior art processes. Subsequently, a pteridine ring is formed from the pyrimidine hydrochloride using dihydroxyacetone at pH 5.5.+-.0.2 to form the second ring. This strict pH control together with the use of hydrochloride salt minus the acetate buffer assists in preferentially favoring the formation of 2,4-diamino-6-hydroxymethylpteridine.

Abstract: Control circuitry for a gun mounted in a vehicle turret that is non-symmecal relative to the vehicle front and rear ends. The gun can slew across the front and side areas of the vehicle at a minimum elevation of -20.degree., but due to the turret-vehicle orientation the gun is restricted to a minimum elevation of -7.degree. while slewing across the vehicle rear end. Should the gun be slewing toward the rear end of the vehicle while tracking a target at a level below the -7.degree. elevation, then in that event anticipating circuitry in the control system will automatically raise the gun to a safe elevation while the gun is passing over the vehicle rear end. The vehicle rear end is hereafter referred to as an avoidance zone.

Abstract: A rough terrain articulated vehicle wherein one vehicle section is intercected with a second vehicle section for unrestrained relative rotation around the vehicle roll axis. Roll movement enables the respective vehicle sections to shift in accordance with terrain irregularities, thereby minimizing the need for high wheel travel. A locking or latching mechanism is provided to prevent roll rotation when the vehicle is moving over relatively smooth terrain.

Abstract: A horizontal baffle disposed in the annulus defined between the core barrel and the thermal liner of a nuclear reactor thereby physically separating the outlet region of the core from the annular area below the horizontal baffle. The horizontal baffle prevents hot coolant that has passed through the reactor core from thermally damaging apparatus located in the annulus below the horizontal baffle by utilizing the thermally induced bowing of the horizontal baffle to enhance sealing while accommodating lateral motion of the baffle base plate.

Abstract: The disclosure relates to thermosetting molding compounds and more particularly to a pyrotechnic filled thermosetting compound comprising a blend of unfilled diallyl phthalate molding powder and a pyrotechnic mixture.

Abstract: A fusible heat sink for a cryogenic refrigerator used to provide cooling for a detector in the guidance system of a missile. The cryogenic refrigerator has a cold cylinder in contact with the detector and a hot cylinder. The hot cylinder and cold cylinder are connected to a crankcase housing. A heat pipe is connected between the crankcase and the missile skin for providing primary cooling for the crankcase housing. The fusible heat sink is connected to the crankcase with the crankcase forming part of the wall of the heat sink housing. A fusible material is located within the housing. The inside surface of the heat sink housing is coated with nickel and silver to increase the heat transfer between the crankcase and the heat sink.

Abstract: This invention provides a simple, reliable, inexpensive and portable means and method for determining the thyroid dose rate of mixed airborne species of solid and gaseous radioiodine without requiring highly skilled personnel, such as health physicists or electronics technicians. To this end, this invention provides a means and method for sampling a gas from a source of a mixed species of solid and gaseous radioiodine for collection of the mixed species and readout and assessment of the emissions therefrom by cylindrically, concentrically and annularly molding the respective species around a cylindrical passage for receiving a conventional probe-type Geiger-Mueller radiation detector.

Abstract: A magazine for a rimfire adapter to feed cartridges into a rifle in which e cartridges are shorter than those for which the rifle was intended. The magazine cavity is positioned rearwardly, in order for the base of the shorter cartridges to be positioned longitudinally in the same position the original cartridge would have been if it were used. This overcomes the double firing safety hazard while suitable ramps and guides are positioned forwardly to guide cartridge travel forward to the chamber.

Abstract: A vehicle suspension height control unit comprising a hydraulic pump operd by reciprocatory action of the suspension dashpot to pressurize an accumulator. Tendency of the sprung mass to go above or below its normal height range actuates a directional valve for either venting liquid from the dashpot to a sump or passing pressurized liquid from the accumulator to the dashpot. Preferably each roadwheel is equipped with one of these hydraulic units, thereby avoiding the complexity of a central hydraulic system and myriad hydraulic lines.

Abstract: A layer of epitaxial silicon is grown on an epi-silicon growth substrate, a thin silicon dioxide layer is grown on the epitaxial layer, and thick layer of polysilicon is grown on the dioxide layer. The epi-silicon layer is then removed, and the epitaxial layer is masked and doped to produce both a region capable of CCD action and an infrared sensitive region. The doped epitaxial layer is orientially etched through a mask to produce isolated infrared sensitive areas to serve as detectors and an isolated area capable of CCD action. Coupling regions are also doped on the CCD ares. The detectors and the CCD area are each in the shape of a frustum of a right rectangular pyramid, with its base on the silicon dioxide layer. Electrical pads are grown to form CCDs. Electrical leads are grown, some to connect respective CCDs to respective coupling regions, some to serve as drive lines for the CCDs, some as common lines for the detectors, and some as connecting lines between respective detectors and coupling regions.