Glass treating furnace

Details Glass treating furnace Glass treating furnace

1975-01-20

1976-05-18

Kellogg, Arthur D.

Glass manufacturing

Product cooling means

With preceding reheater

65349, 432 64, 432126, 432145, 432176, 432185, 432250, C03B 2904

Patent

active

039574792

ABSTRACT:
A furnace for treating glass sheet material and the like in a glass tempering system. The furnace includes an upper glass treating zone and a lower gas treating and distributing zone for homogenizing gases of different temperatures to minimize exposure of the sheet being treated in the treating zone to uneven temperatures. Diametrically opposed inlets and outlets are provided in the side walls controlled by doors, and a slot in the top wall extends between the inlets and outlets to permit movement of a material carrier through the furnace. A pressure chamber communicates with the slot to cool conveyor elements at the top of the furnace, and also to provide a pressure barrier resisting the escape of gases from the furnace through the slots. Air curtains impinge on the tops of the doors in their closed positions to reduce leakage at the top of the doors.

REFERENCES:
patent: 1311286 (1919-07-01), Munhollon
patent: 1868824 (1932-07-01), Grapp
patent: 2089250 (1937-08-01), Cone
patent: 2664838 (1954-01-01), Sorensen
patent: 2819889 (1958-01-01), Dany
patent: 2841925 (1958-07-01), McMaster

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