Furnace for heat treating glass sheet material

Details Furnace for heat treating glass sheet material Furnace for heat treating glass sheet material

1975-01-20

1976-01-06

Kellogg, Arthur D.

Glass manufacturing

Product cooling means

432145, 432176, 432185, 432250, C03B 2904

Patent

active

039308316

ABSTRACT:
A furnace for heat treating glass sheet material including a circular enclosure having top, bottom and side walls of refractory material. Inlet and outlet openings are formed in the side walls. The side walls have an outer insulating layer and an inner layer of material having a low coefficient of thermal expansion, the inner layer having spaced end portions projecting beyond the outer layers and the periphery of the side walls to define said inlet and outlet openings. Each opening is controlled by doors, and each door includes an elongated support bar with a plurality of blocks of refractory material supported on the bar in end-to-end relationship. The blocks are adjustably secured to the bar to accommodate irregularities in the openings.

REFERENCES:
patent: 1311286 (1919-07-01), Munhollow
patent: 2664838 (1954-01-01), Sorensen
patent: 2841925 (1958-07-01), McMaster

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