Method and apparatus for bending glass sheets

Details Method and apparatus for bending glass sheets Method and apparatus for bending glass sheets

C - Chemistry, Metallurgy

03

B

C03B 23/03 (2006.01)

Patent

CA 2110573

The present invention relates to a female press bending ring (50) for use in the press bending of glass sheets outside of a furnace, and more particularly to a female press bending ring which is suitably heated by heater elements (69) during the bending cycle to regulate the transfer of heat between the peripheral margin of the glass and the female bending ring with which it is in contact. By so doing, near-edge tension and edge stresses are greatly reduced, thereby reducing chill cracking and glass breakage during and after production. The female ring may be covered by a layer (78) of fiberglass cloth or the like to provide a smooth resilient for engaging the glass sheet.

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