Abstract: A device for obtaining a glazing surrounded, on at least a portion of its periphery, by cast plastic including an injection head, a cavity, an injection dam and at least one mold part in the wall of which a duct is provided. The duct has two parts, one part located outside the joint plane and one part located in the joint plane.

Abstract: An electrochromic system comprising a transparent electrically conducting film (2), a film (3) of a cathodic electrochromic material, which is capable of reversibly inserting M.sup.+ cations of type H.sup.+ or Li.sup.+, an electrolyte film (5), counter-electrode film (7) made of an anodic electrochromic material, and a second electrically conducting film (8), said structure having a barrier film (6) interposed between electrolyte (5) and the counter-electrode (7), which barrier film is open to the diffusion of the M.sup.+ cations and which is constituted of the following materials selected from the group consisting of oxides of metals of Group VB of the Periodic Table, mixtures of these oxides, CeF.sub.3, Sb.sub.2 O.sub.3, HUP (hexauranylphosphate), Cr.sub.2 O.sub.3, ZrO.sub.2, and an ion conductor material of Li.sub.3 N, LiTaO.sub.3, LiAlF.sub.4, Li.sub.3 PO.sub.4, LiBO.sub.2 or LiNbO.sub.3.

Abstract: Glass composites, containing a glass substrate (1) on which is deposited an underlying film (2) based on tantalum oxide, titanium oxide or tin oxide, on which is deposited a functional film (3) based on an alloy of chromium and nickel or based on tantalum, on which is deposited an overlying film (4) based on titanium oxide, titanium nitride or tantalum oxide, provide effective protection against solar radiation while exhibiting excellent wear and corrosion resistance.

Abstract: In a method and apparatus for bending glass plates, the glass plates are heated in a horizontal position in a continuous furnace (1) to the bending temperature and in a following bending chamber (5) are pressed by an upwardly flowing hot gas stream against a convex bending mold (7) positioned above the conveying plane. The bent glass plates (3') are placed on a displaceable shaping ring (13) and transferred with the latter into a following cooling station (16). The glass plates (3) are raised from the conveying roller train (2) of the continuous furnace (1) by a suction plate (3) are positioned relative to the transfer ring (28) on the latter. With the aid of the transfer ring (28) the glass plates (3) are transferred into the bending chamber, where in the end position of the transfer ring (28) they assume the desired end position relative to the bending mold (7).

Abstract: This invention relates to a glass sheet having a low content of alkaline oxides and alkaline-earth oxides, in the composition of which the sum of the alkaline and alkaline-earth oxides is less than or equal to 15%, with a sodium oxide content less than or equal to 10%, the values being expressed in percentages by weight, at least one of the faces of which is constituted of a surface zone virtually devoid, notably, of alkaline ions.

Abstract: This invention relates to a pane comprising a glass substrate (1) coated with at least one transparent, thin, low-emissivity and/or conducting "functional" film (3), and with an "intermediate" film (2) disposed between substrate (1) and functional film (3). The intermediate film (2) has an optical thickness between 150 and 195 nm, preferably at approximately 168 or 185 nm, so that the residual color of the reflected appearance of the substrate from the "film side" of the pane is in the range of the blues.

Abstract: A method of and a device for curving glass sheets preheated to curving temperature operate by passage of the glass sheets simultaneously over a principal shaping bed having a longitudinal trajectory which is substantially circular or substantially a cone of revolution, and one or more secondary shaping beds, the generatrices of which are inclined relative to those of the principal bed. The invention is applicable, notably, to the production of automobile panes having angled corners.

Abstract: A device for supporting and transferring, in a shaping station (2), at least the central part of glass sheets which have been heated to their shaping temperature. The device includes a pressurized box (21) generating an air cushion. The box has a plurality of individual compartments (53), transverse with respect to the axis of travel of the glass sheets (28), each of the compartments (53) having a width measured parallel to said axis which is small by comparison with the "height" of the glass sheets and, being provided with gas having at least two pressure distribution levels.

Abstract: A foldable plastic tail or rear window shield for a car top or hood comprises a polyurethane monolayer. It is produced by pouring or casting a reaction mixture onto a planar casting or pouring substrate. The reaction mixture contains a bifunctional hydroxyl group-containing polyester, a trifunctional polyol, a polyisocyanate from a cycloaliphatic isocyanate urea adduct dissolved in a isophorone diisocyanate and optionally a bifunctional isophorone diisocyanate.

Abstract: The device for melting glass includes a compartment 1 for melting with a discharge throat 11 defined on top by a mobile carrier 16 having an upper part 18 extending upward above the level of glass and a lower part 17 intended to be totally immersed in the molten glass. Faces of the lower part are formed of a metal or an alloy of metals resistant to corrosion by the molten glass.

Abstract: The invention relates to a method for fabricating laminated glazing comprising at least one enamel layer, wherein is deposited an enamelled composition comprising an anti-adhesive frit, a medium and, optionally, a low melt point frit on a portion of the internal face of a glass sheet; the enamelled glass sheet is subjected to heat treatment at a temperature between 150.degree. C. and the glass deformation temperature, and a second glass sheet is placed on the enamelled side of the first glass sheet before simultaneous bending of the two glass sheets, final firing of the enamel taking place during bending.

Abstract: In order to improve an acoustic insulation performance of a box with parallel faces such as an insulating glazing, the box is equipped with a waveguide. Preferably, the waveguide is situated at the periphery and communicates with the gap of the box via localized orifices situated on each of the sides.

Abstract: The invention concerns a monolithic or laminated pane of glass or of plastic materials which contains at least one glass sheet (8, 9). The edge face of the glass sheet is at least partly covered with a protective strip (11, 12) of elastomeric material which has a hardness less than 90 shore A. The protected strip is adhered to the edge face. The strip serves to protect the sheet from any shock or impact it receives during processing prior to assembly into a pane for use in aircraft or transportation vehicles.

Abstract: The invention concerns compositions of coloured glasses intended for the manufacture of glazing panes suitable for mounting in an automobile vehicle. The panes are of silico-sodo-calcic glasses having 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 nm; these glasses comprise (in % by weight), as colouring agents, from 0.45 to 2.5% of Fe.sub.2 O.sub.3 (total iron), from 0.001 to 0.02% of CoO, from 0 to 0.0025% of Se and from 0 to 0.1% of Cr.sub.2 O.sub.3.

Abstract: The invention discribes a glazing equipped with an extruded profile on which or in place of which is cast a complement, which is connected to the profile,The procedure makes it possible to replace part of the profile which is difficult to produce by extrusion or to add to it foreign elements such as fastenings or various accessories.

Abstract: Glass composites, containing a glass substrate (1) on which is deposited an underlying film (2) based on tantalum oxide, titanium oxide or tin oxide, on which is deposited a functional film (3) based on an alloy of chromium and nickel or based on tantalum, on which is deposited an overlying film (4) based on titanium oxide, titanium nitride or tantalum oxide, provide effective protection against solar radiation while exhibiting excellent wear and corrosion resistance.

Abstract: An extrusion die (1) with a calibrated exit orifice (6) for extruding extruded sections (3, 3', 3") of different profile cross-sections onto a glazing or glass plate (2) is provided with an obturating slide (22) movably positioned in front of the calibrate exit orifice (6) through which the die cross-section can be adjusted. The slide (22) is operated by a pneumatic jack (16).

Abstract: A pulverulent organometallic compound containing tin and a halogen, notably fluorine, is pyrolyzed by heating on the surface of a transparent substrate, notably of glass, in order to form a film of tin oxide doped with a halogen. The coated substrate has improved infrared radiation and/or electrical properties. The granulometry of the organometallic compound is chosen such that the diameter of the particles d.sub.90 is between 40 and 200 microns.

Abstract: A treatment process for the purpose of improving the chemical and/or physical durability of film containing one or more metallic oxides, nitrides, oxynitrides or oxycarbides deposited on a transparent substrate by a cathodic sputtering technique, notably assisted by a magnetic field and preferably reactive in the presence of oxygen. Said process consists of subjecting the film to a low energy ion beam.

Abstract: The invention pertains to a method of treatment of a pane for improving the bond of a peripheral profile, notably of a molded-on profile. The method according to this invention consists of treating at least a part of one face of the pane with at least one silane and a composition capable of forming a film having free OH groups.