Patent
1976-10-07
1978-10-17
Envall, Jr., R. N.
H05B 707
Patent
active
041210425
ABSTRACT:
This invention provides a composite electrode having a metallic, water cooled upper portion and a consumable lower portion. The portions are secured together, and the upper one includes conduit means within it to permit cooling water or other liquid to move along a path which brings the cooling liquid into intimate contact with substantially all of the inside surface of the outer wall defining the periphery of the upper portion.
REFERENCES:
patent: 824153 (1906-06-01), Seward
patent: 2471531 (1949-05-01), McIntyre et al.
patent: 2600823 (1952-06-01), Zaccagnini
patent: 2805270 (1957-09-01), Boron et al.
Envall, Jr. R. N.
The Steel Company of Canada Limited
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