- (in a blast furnace or cupola) a reservoir for iron or slag, accessible through a door at hearth level.
Origin of forehearth
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for forehearth
In this method the molten lead in the forehearth absorbs the silver.
L—The master stands at the other furnace and prepares the forehearth by ramming it with two rammers.
At the first stands the smelter, who with a ladle pours the alloy out of the forehearth into the moulds.
G—The forehearth crucible: one-half inside is to be seen open in the other furnace.
Then the same assistant throws a little powdered charcoal into the pit of the forehearth and sprinkles it with pulverised earth.