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Otto Frick
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4866. Frick, O. Feb. 27. Electric furnaces. -The primary C of an induction furnace is formed of a metal winding insulated by mica or the like, and is placed immediately above the channel or crucible B formed in the refractory brickwork A. If the substance to be treated has not to be melted, it may be placed directly on the flat firebrick. The iron core D may be duplicated ; two or more furnaces, with their crucibles combined or otherwise, may be used for polyphase currents.
GB190404866D1904-02-271904-02-27Improvements in Electric Furnaces.
ExpiredGB190404866A
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