Method and apparatus for introducing a protective atmosphere int

Details Method and apparatus for introducing a protective atmosphere int Method and apparatus for introducing a protective atmosphere int

1975-07-16

1976-08-24

Kellogg, Arthur D.

Glass manufacturing

Processes

Operating under inert or reducing conditions

65 65A, 65 99A, 65182R, C03B 1802

Patent

active

039764605

ABSTRACT:
The glass forming chamber in which glass is formed into a continuous sheet by floating it on the surface of molten metal is provided with a series of heat exchangers in an enclosed shell above the chamber and protective atmosphere gases are passed through these heat exchangers to preheat the atmosphere gases which are then directed through conduits into headers and distribution manifolds located within the headspace of the operating portion of the chamber in the vicinity of the glass being formed. The chamber is provided with conventional electrical heating elements connected to bus bars located within the shell containing the heat exchangers, and the heat exchangers are located close to the bus bars to extract heat from them during operation and thereby prolong their useful lives.

REFERENCES:
patent: 3356476 (1967-12-01), Gulotta

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