Glass manufacturing – Processes – Reshaping or surface deformation of glass preform
Patent
1985-09-26
1986-08-19
Kellogg, Arthur
Glass manufacturing
Processes
Reshaping or surface deformation of glass preform
65273, 65287, 65289, 65290, C03B 2303
Patent
active
046067493
ABSTRACT:
A glass sheet bending apparatus has a lower mold and conveyor rolls for conveying a heated glass sheet horizontally to a position over the lower mold, the lower mold having slots for receiving the conveyor rolls when the lower mold is lifted. The glass sheet bending apparatus has a main ring mold disposed around the outer peripheral surface of the lower mold which has a first shaping surface for shaping the central area of the glass sheet, the main ring mold having a second shaping surface for shaping the peripheral edge of the glass sheet. The glass sheet bending apparatus also has an auxiliary ring mold disposed between the main ring mold and the lower mold and having a substantially horizontal, flat support surface for supporting the glass sheet between the central area and peripheral edge of the glass sheet. The auxiliary ring mold is lifted prior to the upward movement of the lower mold and the main ring mold for raising the glass support off the conveyor rolls with its support surface. There is also disclosed a method of bending a glass sheet.
REFERENCES:
patent: 4204854 (1980-05-01), McMaster et al.
patent: 4305746 (1981-12-01), Hagedorn et al.
patent: 4501603 (1985-02-01), Frank et al.
patent: 4508556 (1985-04-01), Bennett et al.
patent: 4529433 (1985-07-01), Bennett et al.
Iida Naohiro
Nushi Masaaki
Kellogg Arthur
Nippon Sheet Glass Co. Ltd.
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