Glass manufacturing – Processes – Glass preform treating
Patent
1976-04-07
1977-08-23
Kellogg, Arthur D.
Glass manufacturing
Processes
Glass preform treating
65118, 65349, 65351, C03B 2700, C03B 2504
Patent
active
040437868
ABSTRACT:
This invention relates to glass sheet conveyor rolls and, particularly, those that are useful in conveying glass sheets through a hot atmosphere. The gist of the invention resides in the manner of supporting rigid, unitary conveyor rolls on three bearing housings, a pair of which is located to one side of the conveyor path provided by a set of conveyor rolls. According to a specific embodiment of this invention, the outer bearing housing of the pair of bearing housings is supported slightly above the one horizontal plane of support for the other bearing housings supporting each conveyor roll so as to impart a stress causing each conveyor roll of cylindrical configuration to develop a slightly concave upper surface during rotation. The stressed rolls engage the bottom surface of conveyed glass sheets along their opposite longitudinal side edges only, thus reducing roll marking, and the stress applied reduces whipping when the rolls are rotated for conveying flat glass sheets through a hot atmosphere such as a glass sheet heating furnace.
REFERENCES:
patent: 3881906 (1975-05-01), Ritter, Jr. et al.
Kellogg Arthur D.
Mates Edward I.
Millman Dennis G.
PPG Industries Inc.
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