US PATENT SUBCLASS 373 / 89
.~.~ Self-baking (i.e., Soderberg)

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373 /   HD   INDUSTRIAL ELECTRIC HEATING FURNACES

60  DF  ARC FURNACE DEVICE {9}
88  DF  .~ Electrode {4}
89.~.~ Self-baking (i.e., Soderberg)

DEFINITION

Classification: 373/89

Self-baking (i.e., soderberg):

(under subclass 88) Subject matter wherein an electrode means is made in situ by adding raw electrode material in the form of a paste to an electrode casing above the furnace, forcing the paste down the casing whereby it bakes into a solid

electrode as it enters into the furnace.

(1) Note. The baking is a result of the heat from within furnaces.

SEE OR SEARCH CLASS

313, Electric Lamp and Discharge Devices,

327, for self-baking electrode structures, per se.