Saint-gobain Vitrage International

Saint-gobain Vitrage

Saint-gobain Glass France

Saint-gobain Vitiage

Jacques Leclercq

Bernard Letemps

Gilles Garnier

Philippe Dereims

Gerard Huchet

A method and machine for obtaining bent glass sheets. Glass sheets are brought to their softening temperature, then they are caused to travel over a shaping bed of advancing elements for advancing them which are arranged along a path having a circular arc-shaped profile, the sheets progressively assuming their shape on entering the bed and over a first shaping zone, then being hardened by tempering or cooling in a second zone of the bed until they leave, and then the bent glass sheets thus obtained are recovered. The shaping bed is produced with a profile extending in a circular arc of more than 90&#xb0;, and, on leaving the shaping bed, the hardened glass sheets are moved in a direction opposite that in which they were fed in.

Method and machine for the production of convex glass sheets

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.

Method for the production of curved glass sheets

Glass sheets which have been heated to bending temperature are bent by passing the glass sheets over a shaping bed having a substantially circular or substantially conical profile of revolution as seen in the longitudinal direction of the shaping bed. The shaping bed is composed of an assembly of revolving elements adapted for driving the glass sheets and at least one hot air cushion acting on the glass sheets in the first part of the bending zone.

Process and apparatus for the production of curved sheets

A method of and device for curving a glass sheet, in which the glass sheet is brought through a reheating furnace by a conveyor defining a substantially horizontal transportation plane, and is then taken over by a tool, by means of which the glass sheet is curved and/or transferred to a curving and/or discharge device. The effective position of the glass sheet is detected and the taking-over tool is repositioned as a function of the effective position.

Method of and device for curving glass sheets

A machine cambering glass plates as a curved shaping bed formed of vertically aligned pairs of rollers. Each roller of each pair has an end mounted to a pivoting arm so that it can be elastically bent in a middle portion thereof, while keeping the ends of the rollers straight. Needle bearings support the rollers in the bending plane. The support arm for the lower roller supports the support arm for the upper roller, so that the two pivot together so as to provide uniform bending for the upper and lower pairs of rollers.

Apparatus for cambering glass sheets by elastically bending a shaping

A laminated glass of the present invention includes as a photosensitive element a photodiode of such thickness that it can be buried in the plastic interlayer of the laminated glass between two outside glass sheets of the glass. The photodiode is coated in a plastic compatible with that from which the interlayer is made and mounted along one of the side edges of the glass, so that conductors from the diode and their terminals project out from the glass and can be connected to any suitable electric circuit. The electric circuit for use with the diode can be a lighting circuit of a motor vehicle so that the photodiode automatically controls turning on of the lights of the vehicle when ambient light falls below a certain threshold and turning off the same lights when ambient light exceeds a second threshold.

Laminated glass with photosensitive element and automatic device for

A bending installation includes a shaping bed, an evacuation conveyor positioned downstream of the shaping bed and a swinging device for swinging a glass plate exiting the downstream end of the shaping bed from the shaping bed to the evacuation conveyor. The shaping bed is curved in a direction of advance of the glass plate and has a conveying direction different from that of the evacuation conveyor. The swinging device takes the form of a rotating drum mounted coaxially with a support roller. The drum includes holding rollers spaced from the support roller by a distance sufficient that a glass plate exiting the shaping bed is held between a holding roller and the support roller, so that the swinging device is swung by the weight of the glass plate to a position where the glass plate is transferred to the evacuation conveyor. A tempering air blowing box may be provided on the swinging device.

Method and apparatus for bending and tempering glass plates

The terminal for encapsulated glazing having coverings or equipment requiring an electric power supply. The terminal, for example of the hollow rivet type, is fastened, particularly by soldering or brazing, in the area of the edges of the glazing on a zone having a conductive covering, embedded in the encapsulation material of the glazing. The terminal makes it possible to supply power to the heating glazings.

Electric power supply terminal for encapsulated glazing

An automatic device for actuation of components for cleaning motor vehicle glass which includes a system for detection of the dirtiness of the glass, made up of a measuring photosensitive element receiving light directly through the glass and a reference photosensitive element isolated from any direct light and influenced only by the light transmitted through the interior of the glassing and an electronic circuit to receive and compare the responses of the two photosensitive elements and means to control the cleaning components automatically when the difference is response of these elements exceeds a certain threshold.

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Roisel, France

Jacques Leclercq