Glass manufacturing – Processes – Glass preform treating
Patent
1978-03-06
1979-04-24
Kellogg, Arthur D.
Glass manufacturing
Processes
Glass preform treating
65104, 65348, C03B 2700
Patent
active
041509633
ABSTRACT:
In tempering glass sheets vertically hung from tongs, the uniformity with which tempering medium is applied onto the glass sheets during quenching is improved by providing the quenching apparatus with a plurality of discs carried on wires on one side of the path taken by glass sheets through the quenching apparatus. The flow of tempering medium is controlled so as to force the glass sheets against the discs, thereby avoiding uncontrolled buffeting of the glass sheets during quenching. The discs are designed to minimize interference with the flow of tempering medium and preferably include openings through which the tempering medium may flow, such as serrations along the edges.
REFERENCES:
patent: 2137061 (1938-11-01), Quentin
patent: 3089727 (1963-05-01), Hay, Jr.
patent: 3340039 (1967-09-01), Marceau
patent: 3346360 (1967-10-01), O'Connell et al.
patent: 3367764 (1968-02-01), Seymour
patent: 3824090 (1974-07-01), Seymour et al.
patent: 4006002 (1977-02-01), Hetman, Jr.
Kellogg Arthur D.
Millman Dennis G.
PPG Industries Inc.
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