Working and parts of a smokeless coal furnace explained by an instructor in United States.
United States USA Date:1943 Duration:4 min 4 sec Sound:NO SOUND
Two women stand near a coal furnace in United States. They open the upper door of the furnace. Burning coal in view. A woman adds coal from a bucket. She turns the coal with a poker. A woman checks ash from a tray in the bottom. A man checks the furnace. Another man shows that no smoke is in stove pipe above the furnace. Students gather around as designer explains the parts and the functioning of the furnace with the help of a diagram. The designer and another man demonstrate how the smokeless fire box can be retrofit into existing furnaces.
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