Abstract: A method of making coated glass including producing a continuous ribbon of glass, depositing a coating onto a surface of the ribbon during the production process and polishing the coated surface of the ribbon using at least one rotating polishing head. Preferably one or more of the rotating polishing heads have an axis of rotation substantially parallel to the plane of the ribbon. The invention also provides a method of treating glass including polishing a surface of the glass with at least one polishing head wherein the axis of rotation of the polishing head is substantially parallel to the plane of the glass, glass polished according to the methods of the invention and a flat glass production line including a polishing station including at least one rotating polishing head.

Abstract: A multiple glazing unit has first and second panes held apart by a spacer frame. The unit is suspended from a structure, such as a building framework, by a supporting assembly which extends through apertures in the first and second panes respectively. The supporting assembly includes a boss which is located between the first and second panes. Annuli of adhesive tape are used to seal the boss and the first and second panes respectively.

Abstract: A window is provided which includes an array of fine, closely spaced wires through which electric current is passed to heat the window. Such windows are useful as vehicle windows, e.g. windscreens, because the heating disperses ice or condensation on the surface of the window, thereby improving visibility. According to the invention, at least some of the wires extend along diverging lines, so that the heated area extends over substantially the whole of the transparent portion of the window. It is also described how to achieve a sufficiently uniform heating effect over the extended heated area. A method of manufacturing such windows, and an apparatus for forming such arrays of wires, are also provided.

Abstract: The green reflection color of back surface mirrors produced by deposition of a reflecting layer over two reflection enhancing layers on a glass substrate is controlled by selection of the layer materials and thicknesses to provide a reflection color having an a* value greater than -6, with a light reflection of at least 65%, preferably at least 70%. The inner reflection enhancing layer and reflecting layer are preferably of silicon, with the inner reflection enhancing layer having an optical thickness less than 125 nm; the intermediate reflection enhancing layer, which may be of silicon oxide, preferably has an optical thickness greater than 125 nm. The mirror may be produced by depositing the successive layers on a hot ribbon of glass during the glass production process.