Method and apparatus for making convex sheets of glass having a

Details Method and apparatus for making convex sheets of glass having a Method and apparatus for making convex sheets of glass having a

1978-09-14

1980-05-20

Kellogg, Arthur D.

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

65273, 65287, 65291, C03B 2302

Patent

active

042037514

ABSTRACT:
A process for making a convex sheet of glass having a substantial bent portion of small radius of curvature comprising vertically suspending a heated flat sheet of glass between two molds having matching center elements and matching jointed elements mounted on the center elements for movement about an axis, moving the molds together to confine the sheet and moving the jointed elements with respect to the center elements to bend a portion of the heated sheet.
A device for making a convex sheet of glass having a bent portion of small radius of curvature including a female mold and a male mold adapted to engage a vertically suspended sheet of glass therebetween and where the molds have matching center elements and at least one set of two matching jointed elements connected to the center elements and including means for moving the joined elements of a set about an axis to bend a portion of the sheet.

REFERENCES:
patent: 2348279 (1944-05-01), Boyles et al.
patent: 2876592 (1959-03-01), Black et al.
patent: 3251672 (1966-05-01), Touvay et al.
patent: 3762903 (1973-10-01), Hamilton
patent: 3762904 (1973-10-01), Hamilton et al.
patent: 3879184 (1975-04-01), Hamilton et al.
patent: 4002450 (1977-01-01), Hamilton et al.
patent: 4074996 (1978-02-01), Hagedorn et al.

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