A professional who directs pouring of slag from ladle through spout into reverberatory furnace used for smelting. Respnsibilities include:

• Raises furnace door, using lever or air hoist.
• Guides overhead crane operator by signal horn and lights in positioning ladle over spout and pouring slag.
• Sprays water on inner walls of spout to remove encrusted slag, or pries slag loose with iron bar.
• Shovels slag into car or furnace.
• Patches cracks in spout with moist clay, smoothing surface with hand or shovel.
• Scatters slurry of silica and clay evenly over inner surface of spout to decrease slag-crust during pouring operation.
• May guide dinkey operator into position over furnace, using hand signals.
• May record amount of slag dumped into furnace on analysis sheet.