Method and apparatus for bending glass sheets

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

1975-03-10

1976-08-24

Kellogg, Arthur D.

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

65288, 65289, 65374RM, C03B 2302

Patent

active

039764621

ABSTRACT:
In bending glass sheets by the gravity sag method, the glass is supported on a rigid metal outline mold composed of one or more metal rails having a heat capacity appreciably greater than that of the glass sheet to be bent. The glass sheet portion that is in direct contact with the rail for the entire heating cycle incidental to glass sheet bending tends to break. The present invention provides a simple but effective means to reduce the incidence of glass breakage during thermal treatment incidental to bending by providing the end portions of the rail with thin sheet metal members folded thereover.

REFERENCES:
patent: 3741743 (1973-06-01), Seymour
patent: 3837833 (1974-09-01), Couture et al.

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