Abstract: The invention comprises press bending apparatus including a continuous uninterrupted peripheral shaping rail mounted for vertical reciprocating movement for lifting a heated glass sheet from a roll conveyor and pressing it against a complementary shaping surface. Conveyor rolls are provided exteriorly of the shaping rail for advancing a sheet into position over the shaping rail, and additional separate rolls are mounted so as to be disposed within the confines of the shaping rail for supporting the sheet interiorly of the shaping rail. An arrangement is provided beneath the shaping rail for supporting and driving the interior rolls so as to permit vertical movement of the shaping rail between the interior and exterior rolls.

Abstract: A press bending mold having an improved shaping element comprising a flexible, continuous shaping surface that is readily adjustable and easy to fabricate. The shaping element is mounted on a support plate by a plurality of adjustable connectors, and includes a resilient body having an expanded metal grid encapsulated therein. The resilient body may be covered by one or a plurality of sheets of a fibrous, heat-resistant material which, in turn, is covered by a layer of fiberglass cloth, or the such. One or more of the fibrous sheets may be treated with a rigidizer.

Abstract: A manufacturing line for tempering glass sheets includes a furnace, an oven, a bending station, and a chilling section positioned in order along a generally horizontally extending conveyor for the glass sheets. The oven extends between the furnace and the bending station to maintain the glass sheets at a predetermined temperature. The oven has sidewalls formed of a plurality of brushes and is selectively extensible along the path of travel of the glass sheets. The oven includes controlled heating devices. The chilling section includes a plurality of tubes positioned above and below the path of travel of the glass sheets and connected to a source of air under pressure. The tubes are arranged in rows generally perpendicular to the path of travel and columns generally parallel to the path of travel in order to cause the glass sheets to meet predetermined fragmentation specifications.

Abstract: A process and apparatus for conveying formed, heated glass sheets from a glass forming station, through a glass tempering station, to a lehr, utilizes a shuttle ring conforming in outline and elevation to the marginal edges of the glass sheet. The shuttle ring receives the glass sheet from the lower shaping mold, by the relative downward vertical movement of the lower shaping mold away from the upper shaping mold. The glass sheet thus deposited on and supported by the shuttle ring is transported through the tempering station to the lehr.