Glass manufacturing – Processes – Reshaping or surface deformation of glass preform
Patent
1977-01-03
1978-02-28
Kellogg, Arthur D.
Glass manufacturing
Processes
Reshaping or surface deformation of glass preform
65273, 65289, C03B 2302
Patent
active
040765148
ABSTRACT:
When glass sheets are bent to "V" shape by press bending and electrical current is used to provide localized heating along the intended line of a sharp bend, it is necessary to insulate the glass electrically from ground. This is done according to the present invention by providing the pressing molds that engage the glass with covers of electrical insulator material, such as fiber glass, and by incorporating in the glass suspending means or tongs a length of electrical insulator material sufficiently long to effectively insulate the metal tongs that engage the glass from the tong suspension carriage which is grounded and to avoid electrical arcing. The detailed tongs construction incorporating a member of an electrical insulator material of sufficient length to insulate the conductive glass sheet portion from a grounded tong supporting carriage and to avoid arcing therebetween is also part of the present invention.
REFERENCES:
patent: 2111392 (1938-03-01), Galey
patent: 2176999 (1939-10-01), Miller
patent: 2215228 (1940-09-01), Oliver
patent: 2999338 (1961-09-01), Richardson
patent: 3089727 (1963-05-01), Hay
patent: 3248195 (1966-04-01), Golightly et al.
patent: 3290133 (1966-12-01), Thomas
patent: 3333935 (1967-08-01), Valchar et al.
patent: 3340039 (1967-09-01), Marceau
patent: 3363930 (1968-01-01), Webb
patent: 3367764 (1968-02-01), Seymour
patent: 3762903 (1973-10-01), Hamilton
patent: 3762904 (1973-10-01), Hamilton et al.
patent: 3795501 (1974-03-01), Jansson et al.
patent: 3795570 (1974-03-01), Jansson et al.
patent: 3847586 (1974-11-01), Reese et al.
patent: 3854920 (1974-12-01), Kay et al.
patent: 3865680 (1975-02-01), Reese et al.
patent: 3879184 (1975-04-01), Hamilton et al.
patent: 3960535 (1976-06-01), Hamilton et al.
Kellogg Arthur D.
Mates Edward I.
Millman Dennis G.
PPG Industries Inc.
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