Ingot pusher furnace with rail drawbridges

Details Ingot pusher furnace with rail drawbridges Ingot pusher furnace with rail drawbridges

1989-06-12

1990-07-03

Yuen, Henry C.

Heating

Work feeding, agitating, discharging or conveying...

432250, 432242, 432243, 432244, 110173R, F27D 300, F27D 112

Patent

active

049386905

ABSTRACT:
An ingot pusher furnace includes means for reducing heat loss from the charging and discharging ends of the furnace so as to produce a more efficient and uniform heating of the ingots. The pusher furnace includes support rails which extend between a first opening in the front wall and a second opening in the rear wall and terminates inside of the charging and discharging doors. The charging and discharging doors extend below the support rails in their closed position so as to provide a positive seal. A first rail drawbridge is arranged adjacent the charging door to facilitate movement of the ingots into the furnace enclosure. The second rail drawbridge is arranged adjacent the discharging door to facilitate movement of the ingots out of the furnace enclosure.

REFERENCES:
patent: 2033331 (1936-03-01), DeCinolis et al.
patent: 2254900 (1941-09-01), Lessmann
patent: 2270484 (1942-01-01), Wallerius
patent: 4054411 (1977-10-01), Beck
patent: 4427378 (1984-01-01), Bowers
patent: 4859178 (1989-08-01), Ross

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