Hydraulically forcing contacts against electrodes for electrofur

Details Hydraulically forcing contacts against electrodes for electrofur Hydraulically forcing contacts against electrodes for electrofur

1984-11-05

1986-03-18

Envall, Jr., Roy N.

Industrial electric heating furnaces

Arc furnace device

Electrode support

H05B 710

Patent

active

045773254

ABSTRACT:
The contact urging pressure force is provided through corrosion proof bellows interposed between two covers, one being affixed to a cooled electrode carrier ring, the other one being provided for obtaining the contact urging force; the interior of the bellows contains springs opposing the hydraulic force, and further containing a check valve whose holding element is affixed to the second mentioned cover, closing the opening of the first mentioned cover as long as the hydraulic pressure does not exceed a certain amount.

REFERENCES:
patent: 2834824 (1958-05-01), Van Nostran
patent: 4154974 (1979-05-01), Wynne

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