Air blast machine was used to direct air into the hearth under pressure by the water-powered blast machinery, raising the fire in the furnace to smelting temperature.
Air blast machine was used to direct air into the hearth under pressure by the water-powered blast machinery, raising the fire in the furnace to smelting temperature.
Abbr=PUB
U.S. National Park Service
Project=Folder; Art_Registration_No=PUB-0082 ; Reflective Art