Abstract: Anti-veiling-glare glass input window for an optical device. The window has throughout a shallow surface layer over its peripheral surfaces radiation absorbent free-metal-induced color centers. A method for preparation of such a window, which is particularly suited to be used as an input window for an image intensifier, involves preshaping the window from clear glass and forming color centers in a shallow surface layer over at least the peripheral surfaces of the window. If the clear glass contains reduceable metal oxides the color centers are formed by subjecting at least the peripheral surfaces of the clear glass to a reducing atmosphere at a temperature high enough to cause the reducing atmospheres reducing component to diffuse into a shallow surface layer of the window and to reduce the metal oxides to free metal atoms.

Abstract: There is disclosed a method and apparatus for adjusting the thickness of a hollow tubular member to provide a cross-section of constant area, such adjustment being inversely dependent upon detected increases or decreases in the thickness of the metal strip. The method and apparatus provide for the formation and welding of a metal strip into a hollow tubular member; the application of longitudinally directed, braking or pushing forces to the hollow tubular member; and then the continuous reduction of the hollow tubular member to achieve a cross-section of constant area.

Abstract: The invention is concerned with an absorbing spring involving the hydrostatic compression of an elastomer, comprising a tight casing constituted by a deformable, bent elastic tube of flattened section, filled with elastomer. A central core is embedded in the elastomer, the core being made of elastic material, the coefficient of heat expansion of which is lower than that of the tube. The invention finds particular application in the manufacture of absorbing devices.

Abstract: The catalyst is withdrawn from a coal hydroliquefaction reactor while it is maintained on stream by withdrawing a portion of the catalyst, in a separate stream, dispersed in product from the liquefaction zone, with such withdrawn stream being further diluted with liquid recovered from the main product stream to reduce the catalyst concentration. The catalyst containing stream is introduced into the ash separation zone, wherein catalyst is recovered with the ash containing solids. Fresh catalyst is subsequently added to the liquefaction zone in a stream of the liquid recovered from the main product stream.

Abstract: There is disclosed a support leg for a heating element of an electric unit including vertically extending arm members including inwardly extending teeth members which firmly engage the outer surface of the heating element in a manner to prevent subsequent rotation of such support leg.

Abstract: Fiber optic connector apparatus and methods and apparatus for applying the fiber optic connector apparatus to the fiber optic cable is provided in accordance with the teachings of the instant invention. The fiber optic connector apparatus includes a metallic nose piece having a first apertured end portion for butting optical fibers exposed at the aperture and a second apertured end portion for receiving the fiber optic cable. An application device for holding the nose piece in alignment with cable to be attached is provided to heat the nose piece to a temperature to cause protective sheathing on the cable to flow. Upon melting, an end portion of the cable to be attached is biased against the second apertured end portion to cause it to be displaced into the nose piece as the protective sheathing begins to flow to expose optical fibers at the first end portion and, upon cooling, maintain the portion of the cable within the nose piece in a compressed, adhered condition.

Abstract: Optometer apparatus for directly measuring the refraction of the eye and methods therefor are provided in accordance with the teachings of the present invention. According to an exemplary embodiment of the present invention, a double slit, Scheiner principle projection system is employed to project an image upon the retina. The retinal image is then focused upon an optoelectric, linear sensor which provides an output corresponding to the intensity gradient of the retinal image focused thereon. The output of the optoelectric, linear sensor may then be employed as a measure of the refraction of the eye.

Abstract: High voltage electrical cable comprising an inner elongated conductive member, a corrugated metallic tubular member positioned about such inner member, and a plurality of nonconductive spacers each positioned along the longitudinal axis of the electrical cable and extending between said members through a nonconductive environment comprising, for example, a gaseous, foam or liquid insulator. To avoid premature insulation breakdown or sparkover in the vicinity of the spacers, such spacers are so configurated and positioned that their end portions coming into engagement with the corrugations of the surrounding tubular member follow the profile of the engaged corrugations so as to extend into the corrugation troughs thereof.

Abstract: An anchor having a two-handed fluke, the two hands thereof being separated by a slot in which the anchor shank is mounted for slewing to each side of the fluke on a pivot which substantially coincides with the geometric center of the fluke surface area and is journaled in a pivot box formed by side plates on the inner edges of the fluke hands and head plates connecting the side plates and delimiting the slewing angle of the shank, and having rear stabilizers on the outer edges of the fluke hands, and the fluke hands each having a pair of outwardly curved finger tips on which flange plates with upstanding tips are arranged forming front stabilizers.

Abstract: A working roller for a skew rolling mill which has the shape of a truncated cone is provided with internal passages for circulating a heat transfer medium therethrough to thereby control the temperature of the working surface of the roller.

Abstract: There is disclosed a novel process and apparatus for selectively stretching incremental portions of a film of material comprised of a blend of a thermoplastic orientable polymer and an incompatible second phase selected from the group consisting of an incompatible polymer or inorganic material or a polymer matrix having an inorganic filler. The film is introduced into the nip of interdigitating rollers with the concomitant controlling of the velocity of film introduction to substantially the identical velocity of the surface velocity of the rollers to form an opaque, low density, microporous film or sheet of material.

Abstract: A vaccine, toxoid or like agent is administered to an animal by injecting the agent (usually intracutaneously) on a physiologically acceptable colored particle, preferably activated charcoal, which has a particle size whereby the colored particle remains at the point of injection to provide a visible mark which evidences administration of the vaccine or toxoid, and a repository of immunologically active material to serve as a booster.

Abstract: Foam insulated conductor is produced by heating the conductor to a temperature at which the conductor retains sufficient heat to effect crosslinking and foaming of a polymer composition, followed by extruding the polymer composition onto the conductor, with the crosslinking and foaming being effcted by the retained heat.

Abstract: In the production of electric cable in an extruder head having undulated tension relief elements embedded in the jacket, the jacketing material and tension relief elements are introduced at a velocity greater than the cable core, with such velocity being subsequently decreased to provide a compressive force which forms the undulations.

Abstract: In the hydroliquefaction of a sub-bituminous and/or lignitic coal, the inlet temperature to the hydroliquefaction zone is maintained at a temperature higher than those previously employed by providing recycle of hot liquid from the outlet portion of the hydroliquefaction zone. In this manner, the hydroliquefaction is operated at higher average temperatures, and total reaction volume is reduced, thereby reducing overall costs.

Abstract: Hydrogen cyanide, carbon dioxide and ammonia present in a nitrile production effluent are recovered as an aqueous solution containing ammonium carbonate and ammonium cyanide. The cyanide is hydrolyzed to ammonia and carbon monoxide, followed by recovery of carbon monoxide, carbon dioxide and ammonia, all free of cyanide, from the hydrolyzed solution. In this manner, ammonium values are recovered from the cyanide byproduct and recovered streams are free of cyanide.

Abstract: There is disclosed a process and apparatus for the cyclic heating and cooling of processing equipment with a pressurized heat transfer fluid, i.e., water, utilizing heat exchangers for the separate heating and cooling of the heat transfer fluid and including a storage vessel having at least two heat transfer zones wherein heat transfer fluid is stored in such vessel during initial phases of one cycle for use in a subsequent cycle whereby heat transfer fluid at an intermediate temperature level in one zone is passed through such processing equipment prior to the passage of heated or cooled heat transfer fluid through such processing equipment from one of such heat exchangers.

Abstract: A serum sample is heated at an alkaline pH to release folate and vitamin B.sub.12 from endogenous binders. A simultaneous radioassay for folate and vitamin B.sub.12 is effected by contacting the sample with binder for folate, binder for vitamin B.sub.12, folote labeled with one radioactive isotope and vitamin B.sub.12 labeled with another radioactive isotope, followed by separation of bound and free portions, and determination of the radioactivity of at least one of the portions. The amounts of folate and vitamin B.sub.12 present in the sample may be determined from standard curves.

Abstract: There is disclosed a process for the extraction of oil from particulate oleaginous seed materials, such as soy beans, utilizing aqueous alcohols as the solvent to produce a novel flour, particularly a soy flour.

Abstract: There is described in a preferred embodiment of the present invention, a process and apparatus for bi-axially stretching a tubularly-formed sheet of thermoplastic material in a first station and a plurality of second stations wherein the first and second stations are provided with sets of rolls having generally sinosoidally-shaped grooves perpendicular and parallel, respectively, to the axis of each set of rolls to produce bags of improved strip tensile breaking length.