Abstract: The invention relates to the aiming of an optical illuminator on a target. The direction in which is seen the maximum light of the illuminator reflected by the target is detected, the angle formed by this direction and the direction of sight is measured and the result of this measurement is employed for controlling an orientation of the optical axis of the illuminator or of the optical axis of the sighting system, with the result that the direction in which is seen this maximum coincides with the optical axis of the sighting system. The invention is particularly applied to the sending of a moving body, provided with an optical, self-directing system, onto a target.

Abstract: 3.beta.-Hydroxy-18.beta.-olean-9-en-30-oic acids having anti-ulcer activity of the formula ##STR1## compositions containing the same and process for their preparation.

Abstract: Photopolymerizable elements are described comprising a sheet support, a photopolymerizable layer having a thickness of, at most, 0.0006 inch (0.015 mm.) and an optical density of at least 3.0 in the actinic region. Resist images made from these elements may be etched by a process of chemically undercutting the image areas and then spraying or rubbing them. The elements are useful as contact speed lithographic films and for other graphic arts applications.

Abstract: Preparation of compounds of the formula: ##STR1## wherein n is 1, 2 or 3, R.sub.1 and R.sub.2, which may be the same or different, are hydrogen or alkyl containing 1 to 3 carbon atoms and the asterisk indicates the center of asymmetry of the molecule, and compounds of the formula ##STR2## wherein R" is a saturated or unsaturated aliphatic hydrocarbon containing 1 to 6 carbon atoms, R.sub.3 is hydrogen or acyl containing 1 to 7 carbon atoms and the asterisk indicates the center of asymmetry of the molecule. The compounds produced by the present invention improve learning memory and display a protecting effect against the E.E.G. consequence of an overdose of barbiturates and against the reduced performance following brain damage (e.g. cerebral edema).

Abstract: The present invention relates to a process for coloring or dyeing a material formed essentially from a substrate impregnated with bitumen, said method being characterized in that a colored composition is applied, in particular a pigmented composition, to the substrate before the impregnation of the latter by the bitumen. It also concerns the material thus obtained, characterized by a color gradient between the surface and the inside of the substrate, the color intensity decreasing continuously and practically regularly from the surface.

Abstract: Process for preparing pigmented microporous silica microspheres by spraying an aqueous suspension of pigment in a solution of alkali metal silicate through the air into a medium consisting of from 20% to 100% by volume of a water miscible organic liquid, the balance being water. The resulting microspheres are highly effective opacifying agents.

Abstract: An inspection system for web materials, including electronic means responsive to means scanning the web for detecting a plurality of nonuniform appearance features of the web; means for discriminating these appearance features as to class to identify the significant electrical signal components thereof; means for electrically dividing the web into overlapping areas; means for counting the number of occurrences of the significant signal components over a series of scans within each of the overlapping areas; means for comparing each count with predetermined values to electrically define nonuniform appearance features according to area; and means for combining these nonuniform appearance features to recognize the occurrence of a visual defect class as it occurs within each overlapping area.

Abstract: A process for preparing a furan compound by the catalytic oxidation of a diolefin such as butadiene or a halo-substituted alkene is provided. In this process the starting material is contacted with an aqueous medium having a pH less than about 2 containing (1) iodide ion, (2) a mixture of cuprous and cupric ions, and (3) a solubilizing agent for cuprous ion such as an alkali metal halide. Optionally, an oxygen-containing gas such as air can also be contacted with the aqueous medium. In one embodiment, the starting material is contacted with an aqueous solution of the aforesaid ingredients in one reaction zone to prepare furan and a portion of the solution is passed to a second reaction zone where curpous ion is oxidized to cupric ion with air and then the air-treated solution returned to the first reaction zone.

Abstract: Compositions useful for making electrical conductor patterns on a nonconductive (dielectric) substrate, the compositions comprising certain proportions of finely divided copper, copper oxide and glass powders, dispersed in a vehicle. The compositions may be printed on a substrate and fired in a neutral atmosphere to produce conductor patterns adherent to the substrate.

Abstract: A carburettor for an internal combustion engine comprises an air valve and a driver-actuatable throttle in an induction pipe. The air valve controls proportioning means metering the flow rate of fuel drawn into the induction pipe downstream of the main throttle means via a discharge orifice. A fuel pressure regulator is disposed between the fuel proportioning means and the discharge orifice for controlling the pressure of the fuel discharged into the induction pipe and comprises a valve actuated by a diaphragm one face of which limits a control chamber communicated with that portion of the induction pipe located between the throttle and the air valve. The other surface is subjected to the fuel pressure prevailing upstream of the valve.

Abstract: A sealing element for an automatic drafting pen with a tubular tip wherein a reciprocating horizontal actuating means that acts through a linkage operates a horizontal slide that in one position permits the pen to contact the drafting surface and in a second position seals the pen with the horizontal slide.

Abstract: Mannich condensation products useful in gasoline as carburetor detergents; the condensation compositions having the formula ##STR1## wherein Z is an alkyl- and hydroxy-substituted benzyl group wherein the alkyl has 20 to 1000 carbon atoms; n is 2; x, y, and c are each 0 or 1; x+y=0 or 1; with the proviso that when x is 0 and y is 0, then c is 0; when x is 1 and y is 0, then c is 1 and when x is 0 and y is 1, then c is 1.

Abstract: Toughened multi-phase thermoplastic composition consisting essentially of one phase containing 60 to 99 percent by weight of a polyester including polycarbonate matrix resin of inherent viscosity of at least 0.35 deciliter/gram, and 1 to 40 percent by weight of at least one other phase containing particles of at least one random copolymer having a particle size in the range of 0.01 to 3.0 microns and being adhered to the polyester, the at least one random copolymer having a tensile modulus in the range of 1.0 to 20,000 p.s.i., the ratio of the tensile modulus of the polyester matrix resin to tensile modulus of said at least one polymer being greater than 10 to 1. Said at least one polymer is either a branched or straight chain polymer. The toughened compositions are useful for making molded and extruded parts.

Abstract: A photographic developer containing hydroquinone, an auxiliary developer such as phenidone, and high sulfite is formulated using an organic base such as diethanolamine. This is useful for processing litho film in rapid access machine processors to produce high contrast line and half-tone dot images from films processed therein.

Abstract: A vulcanizable composition comprising an ethylene/vinyl acetate/carbon monoxide terpolymer, said terpolymer containing about 5-30%, by weight, carbon monoxide, and having dispersed therein a vulcanizing agent of elemental sulfur or a compound that releases sulfur at vulcanization temperatures. The cured elastomer is useful for making hose, belts, wire coverings and other elastomeric articles in a conventional manner.

Abstract: A dry compactible, herbicidal composition consisting essentially of an active herbicidal compound, a swelling bentonite, a normally liquid polyethylene glycol, anhydrous sodium sulfate, urea, an inert diluent and water can be dry compacted into an herbicidal pellet which is resistant to impact and crushing and which swells and disintegrates when contacted with small amounts of liquid water to release the herbicidal compound.

Abstract: A device for controlling advance and return movements of an original table of an electrostatic copying apparatus wherein the table is advanced in timed relationship with the movement of a photosensitive element and returned under the action of a spring to its initial position comprising a first shaft rotatable in timed relationship with the movement of said photosensitive element, a second shaft rotated at a predetermined speed in one direction, a stepped pulley mounted on said first shaft for free rotation relative thereto, a first pulley co-axially mounted on said first shaft through an one-way clutch operable when said first pulley rotates relative to said second shaft in said direction of rotation thereof, a first wire passing around said first pulley and which is connected at its one end to a smaller diameter portion of said stepped pulley and at the other end through a spring to said original table, a second wire passing around a larger diameter portion of said stepped pulley and connected at its opposi

Abstract: A hollow rectangular boom formed with four corner sections of identical cross section and plates interconnecting the corner sections is disclosed herein. Each of the corner sections is identical and is generally L-shaped in cross section with first and second legs each having a recess with adjacent pairs of corner sections being interconnected by flat plates received into the respective recesses and welded therein.

Abstract: A method for producing a heterogeneous semiconductor structure with a composition gradient in which a semiconductor material is transferred through the gaseous phase onto the substrate from a source comprising the two AB and AC components and including a number of parallel strips, each of said strips having a constant ratio between the AB and AC components. At first, the source is gradually brought under the substrate at a speed chosen within the range of 100 cm per hour to 0.1 cm per hour, bringing first the strip of the source, which has a maximum content of the AB component. As all the strips have been brought under the substrate, the source is stopped for a period of time required for the formation of the main layer of a required thickness.

Abstract: An apparatus for controlling make-up and addition of replenishment solution to a photographic processor, having one or more reservoirs and metering pumps for selecting make-up solution concentrates, and electronic controls for determining the volume of replenishment solution. Replenishment can be accomplished taking into consideration all of the operating variables such as film size, replenishment rate, and percent exposure, as well as the cumulative effect of any additions and aerial oxidation of the solution while not in use.