PCT No. PCT/GB92/00602 Sec. 371 Date Oct. 18, 1993 Sec. 102(e) Date Oct. 18, 1993 PCT Filed Apr. 3, 1992 PCT Pub. No. WO92/18818 PCT Pub. Date Oct. 29, 1992.An electric arc furnace or convertor is provided with a taphole collector nozzle which is provided, for at least a portion of its length, with an offset bore enlargement. The furnace may be a tilting arc furnace, and may be provided with a sliding gate taphole valve having a collector nozzle with an offset bore enlargement attached to the sliding gate.
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