Sheet heat treating furnace

Details Sheet heat treating furnace Sheet heat treating furnace

1977-10-27

1979-01-23

Kellogg, Arthur D.

Glass manufacturing

Product cooling means

65350, 432 64, 432145, C03B 2504

Patent

active

041359062

ABSTRACT:
A furnace for heat treating vertically depending sheet material moving through an enclosed heating chamber, the furnace having entrance and exit openings in opposed end walls and a slot in the roof extending between the openings. The depending sheet material moves through the heating chamber suspended from a trolley supported above the slot, which trolley has hanger rods projecting through the slot. The entrance and exit openings are closed by doors, and an air curtain directed across the slot provides a pressure barrier which, together with the doors, prevents the flow of heated gases from and within the heating chamber.

REFERENCES:
patent: 2819889 (1958-01-01), Dany
patent: 3957479 (1976-05-01), McMaster et al.
patent: 4006002 (1977-02-01), Hetman, Jr.

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