Abstract: Cryogenic sedimentation is effective to bring about the rapid separation of sub-micron particles from powder mixtures containing such particles without leading to significant agglomeration.

Abstract: A pane with low energy transmission. The pane has a laminated structure of at least one glass sheet tinted in its mass and preferably having antisolar properties, and at least one sheet of polymer material containing a UV-absorbent, the at least one glass sheet and at least one sheet of polymer material being chosen to give a light transmission factor TL.sub.A of less than 60%, an energy transmission factor TE such that the ratio TL.sub.A /TE is greater than 1 and a transmission factor TUV less than 0.5%, the total thickness of the pane being preferably between 2.5 and 8 mm. The application of the pane, notably, as a lateral pane, rear window pane, roof or sun roof for transportation vehicle is disclosed.

Abstract: A clip-in window (100) including a panel (2) made of glass and/or of plastic and at least one hinge element (3) which has at least one rigid rod (5) which can be linked to a complementary element (6) fixed to a frame of an opening, while at the same time keeping at least a degree of freedom of rotation for opening or closing the panel when the window includes one or more hinge elements (3) positioned substantially along just one of its sides.

Abstract: An electrically heated rear screen including a window formed of laminated glass layers separated by a thermoplastic interlayer and having electrical connection elements provided at opposed lateral edges of the window. Plural parallel connected horizontally extending resistive heating wires are embedded in the thermoplastic interlayer. The resistive heating wires are formed as meandering loops having an odd number of loop segments extending across the width of the window. At the opposed lateral edges of the window, the resistive heating wires have opposed end segments which follow a path along the corresponding lateral edges of the rear screen a short distance apart to a respective common electrical connection element.

Abstract: A hydrogen torch comprising concentric inner and outer fluid delivery tubes, wherein;a) the outer tube comprises silica, andb) the inner tube comprises silicon carbide.

Abstract: The invention relates to a glazing assembly comprising at least one and in particular two transparent semi-rigid or rigid substrates on which substrate or between which substrates is placed at least one thermally, electrically and/or electrochemically active system which glazing assembly is provided with at least one seal in contact with at least one of the thermally, electrically or electrochemically active materials of the said system. The seal has an electrical conductivity of less than 10.sup.-4 ohm.sup.-1 .multidot.cm.sup.-1 and/or contains compounds which are essentially free of chemical species or functional groups capable of diffusing out of the seal and reacting chemically or electrochemically with at least one of the said materials within the operating voltage and/or temperature range of the system.

Abstract: This invention relates to the use of a continuously energized ceramic igniter in providing a "relight" function in stovetop cooking applications.

Abstract: Opal glass compositions for producing opal glass articles such as perfume bottles are disclosed. The compositions are borosilicate compositions and further include 0.5-3.0 wt % of CaO and 1.0-6.0 wt % of P.sub.2 O.sub.5, and the sum of alkaline oxides totals 9-18 wt %.

Abstract: A composition for coating can be made by mixing a fluoroalkoxysilane containing an alkoxy moiety directly bonded to a silicon atom, an aqueous solvent system, and a catalyst. The composition can be used to form a hydrophobic and oleophobic layer on a substrate.

Abstract: The invention relates to lenses such as aspherical lenses and to a process for their manufacture. According to the invention, the lens is composed of a glass matrix including the constituents below in the following weight proportions:______________________________________ SiO.sub.2 65-85% Al.sub.2 O.sub.3 0-10% B.sub.2 O.sub.3 0-20% Li.sub.2 O + Na.sub.2 O + K.sub.2 O 3-20% CaO + MgO + BaO 1-15% FeO + Fe.sub.2 O.sub.3 0-0.1%, ______________________________________wherein the K.sub.2 O content is equal to or less than 1% and the BaO content is equal to or less than 1%.

Abstract: Glass sheets are bent in stages into the final shape in a horizontal position in two successive bending stations. The glass sheets heated to bending temperature are laid on a fabric carrier arranged resiliently on a rigid support frame. The glass sheets are conveyed stepwise with the fabric carrier and the support frame through the bending system, and are bent together with the fabric carrier which adapts to the shape of the glass sheets.

Abstract: Use is made, for the manufacture of fire-resistant glazings of the G fire-resistance classes, comprising panes made of glass toughened by the thermal route by means of a conventional toughening plant and possessing safety glass properties, of glasses which exhibit a thermal expansion coefficient .alpha..sub.20-300 of between 6 and 8.5.times.10.sup.-6 K.sup.-1, a thermal stress factor .phi. of between 0.5 and 0.8N/(mm.sup.2.K), a softening point of between 750 and 830.degree. C. and a transformation point of at the very most 1190.degree. C.

Abstract: A method of handling articles in which at least one mechanical tool conveys the article or plays a part in transferring the article, and according to which at least one jet of gas under pressure is blown through a duct passing through the mechanical tool, and also according to which the article is held in position on the mechanical tool while limiting contact therewith, by means of the said jet of gas.

Abstract: An optical polishing slurry with alumina and ceria components is found to produce an improved polishing performance over either component used alone.

Abstract: The production of mineral fibers by centrifuging on rollers (3, 4, 5, 6) with horizontal axes from a stream (1) of molten material includes determining the relative position of the stream (1) of molten material in relation to the first roller (3), and controlling this position by use of CCD cameras (8, 11, 40). A camera (11) observes the periphery of a fiber-drawing roller (4).

Abstract: A mold for the manufacture of glass products at least a portion of which consists of a cuproaluminum alloy that contains: 0.02% wt. or more of one or several elements chosen from among Sc, Sr, Y, Zr and Hf, and/or from 0.02% wt. or more of one or several lanthanides. The cuproaluminum alloy is one of a composition comprising 5 to 15% wt. Al, 2 to 7% wt. Ni, 2 to 7% wt. Fe, 0.05 to 1.5% wt. Si, 0.02% to 2% wt. Mn, and at most 0.25% wt. Zn, with the remainder comprising Cu; or a composition comprising 12 to 18% wt. Ni, 1% wt. or less Fe, 0.05 to 1.5% wt. Si, 0.5% to 2% wt. Mn, and 6 to 12% wt. Zn, with the remainder comprising Cu.

Abstract: The present invention furnishes a device for fiberizing molten mineral materials in order to produce mineral fiber products by means of a spinner (2) having a multiplicity of orifices (6; 8) provided in the peripheral wall (4) thereof, for centrifuging molten mineral materials (10; 12) supplied to the spinner (2), with the spinner (2) comprising on the inside (14) of the peripheral wall (4) compartments (18; 20) arranged in sections and delimited by baffles (16) for separately feeding and separately receiving a respective molten material (10; 12) to at least one associated orifice (6; 8), with the orifices (6; 8) extending at least approximately in a radial direction through the peripheral wall (4). In the present invention a method for producing this device is moreover proposed.

Abstract: The subject of the invention is an electrochemical device which includes at least one substrate (1, 7), at least one electronically conductive layer (2, 6), at least one electrochemically active layer capable of inserting ions reversibly, especially cations of the H.sup.+, Li.sup.+, Na.sup.+ and Ag.sup.+ type, and an electrolyte. This electrolyte (4) comprises at least one layer of essentially inorganic material, of the oxide type, the ionic conduction of which is generated or increased by incorporating a hydrogen-containing and/or nitrogen-containing, in particular nitride-containing, compound or compounds.

Abstract: The forming surface of a forming mold (5) for postforming of a shaped cord (2) in the shape of a frame extruded onto a glass (1) is slightly curved in the direction of the length of shaped cord (2). In the final position of forming mold (4) during the postforming operation, lateral edges (11, 12) are thus slightly above the surface of shaped cord (2). This avoids the creation of imprints in the form of lines or edges on the shaped cord, and a smooth transition is achieved between the postformed length of the shaped cord that attaches there.

Abstract: A colored glass composition, containing the following oxides within the following limits by weight:______________________________________ SiO.sub.2 64 to 75% Al.sub.2 O.sub.3 0 to 5% B.sub.2 O.sub.3 0 to 5% CaO 5 to 15% MgO 0 to 5% Na.sub.2 O 10 to 18% and K.sub.2 O 0 to 5% ______________________________________and as coloring agents: ______________________________________ Fe.sub.2 O.sub.3 (total iron) 0.45 to 2.5% with FeO content representing from 16 to 55% ______________________________________of the total iron content expressed in the form of Fe.sub.2 O.sub.3 ______________________________________ CoO 0.001 to 0.02% Se 0 to 0.0009% ______________________________________wherein the glasses have a total energy transmission factor (T.sub.E) less than the light transmission factor under illuminant A (TL.sub.A), the factor T.sub.E being from 10 to 48% and the factor TL.sub.A from 20 to 60% for a thickness of 3.85 mm, the colored glass composition having an excitation purity equal to or less than 7.6%.