Saint-gobain Vitrage

Maurice Dran

Bernard Jamet

Daniel Dages

Serge Le Gravier

A heating glass plate (15, 20, 27, 34) has a heating network (17, 24, 31, 36) made up of wires embedded in a thermoplastic layer following curved directrices. A device for making a heating glass plate having a plate (39) for supporting thereon a plastic sheet. A bridge (44) is slidably supported on the plate and has thereon a sliding carriage (45) carrying wire-laying members (46). Means are provided for imparting reciprocal motion to the carriage. A rod (51) connects the carriage to a vertical spindle (52).

Device for manufacturing a heating glass plate

Transparent heating pane

A panel of a plurality of electrically connected photocells wherein each photocell has a lower face, a side face and a radiation receiving face, is produced by (a) embedding at least the lower faces and side faces of the photocells and their electrical connectors in a thermoplastic resin in particulate form which resin becomes transparent upon fusion; (b) enclosing the photocells embedded in step (a) between two rigid sheets to form a sandwich-type assembly, with at least the rigid sheet enclosing the receiving faces of the photocells being optically transparent; (c) disposing the stacked assembly formed in step (b) within a flexible bag; (d) subjecting the interior of the flexible bag to a vacuum while applying relatively high pressure to the outside of the bag, and raising the temperature within the bag to fuse the thermoplastic resin particles; and (e) cooling the contents of the bag to solidify the resin and form thereby the panel comprising the photocells adhesively embedded in the solidified resin between the rigid sheets, and restoring atmospheric pressure to the interior of the bag.

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Paris, France

Maurice Dran