Abstract: A device for fixing and maintaining a shapeable glass plate (1) in position during its machining. The plate (1) is placed on a support surface (2) and preferably maintained spaced therefrom to allow a usual operating tool to move and act thereon, for example during a chamfering process.

Abstract: A method and apparatus for bevelling interior angles of sheets of coloured or non-coloured plain glass, plate glass or flattened glass, is disclosed. The vertex of the interior angles is bevelled, with assigned rake and bevel angles of the rotary tool, by moving the tool parallel to the bisector of said angle, first on one side and then on the other side of the bisector, with the active part of the tool substantially tangential to the bisector. The apparatus comprises at least one rotary tool such as a grinding wheel, drive means for rotating the tool, a first member for supporting the tool and a rotary assembly or the like to enable them to be moved angularly within a first vertical plane about a diameter of the tool. A second member supports the first member in such a manner as to enable them to be moved angularly within a second vertical plane perpendicular to the first vertical plane.

Abstract: A method and apparatus for bevelling interior angles of sheets of colored or non-colored plain glass, plate glass or flattened glass, is disclosed. The vertex of the interior angles is bevelled, with assigned rake and bevel angles of the rotary tool, by moving the tool parallel to the bisector of said angle, first on one side and then on the other side of the bisector, with the active part of the tool substantially tangential to the bisector. The apparatus comprises at least one rotary tool such as a grinding wheel, drive means for rotating the tool, a first member for supporting the tool and a rotary assembly or the like to enable them to be moved angularly within a first vertical plane about a diameter of the tool. A second member supports the first member in such a manner as to enable them to be moved angularly within a second vertical plane perpendicular to the first vertical plane.

Abstract: In belt chamfering machines, the glass sheet being machined is gripped and conveyed during the machining (chamfering) of its edge between two facing portions of two belts. The rear belt extends downwards more than the front belt as it has to provide a support for the sheet at or in proximity to the edge being machined. Small sheets cannot be machined by known machines of this type because they would not be adequately gripped between the two belts. To obviate this drawback, the invention provides for the rear belt to be able to be adjusted in height so as to vary the downward projection of said belt relative to the front belt. At the same time, the position of the conveyors on which the sheets rest before and after machining can be adjusted to the same degree.

Abstract: An apparatus for automatically producing glazed insulating window or door panels comprising two glass panes spaced apart by a frame, wherein a first pane, situated in a predetermined position, is raised by a device operated by pressurized fluid, and a frame positioned on a horizontally mobile plate and provided with at least a partial coating of adhesive is led by this plate to below the first pane, which is lowered on to said frame and becomes connected thereto because of the presence of the adhesive coating, to form an assembly which, by virtue of the movement of the device, then becomes connected to the second pane situated in said predetermined position.