Starts crushing machine, and shovels scruff into machine to reduce scruff to uniform size.
Charges scruff into furnace, and ignites gas burner with torch.
Adjusts heat controls to obtain specified temperature for reclaiming metal from scruff. Breaks up lumps in scruff, using rake and hoe. Turns valves to tap furnace and allow reclaimed metal to flow into iron kettle or melting pot. Heats kettle, and skims foreign metal from top, using ladle. Adds specified amounts of tin or lead in producing terne.