open-hearth furnace

British  

noun

1. (esp formerly) a steel-making reverbatory furnace in which pig iron and scrap are contained in a shallow hearth and heated by producer gas

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Example Sentences

Don Nelson remembered a West Coast shipbuilder, Henry Kaiser, who had popped up nine months earlier with a project for building an open-hearth furnace on the Coast, had been gently waved aside.

From Time Magazine Archive

Because it takes barely half an hour to cook a batch of LD steel, v. eight hours in the conventional, open-hearth furnace, the oxygen process melts the costs of labor, power and fuel.

From Time Magazine Archive

They said: "We'd like to see General Johnson walk up to an open-hearth furnace and get his summer pants scorched for $21.84 a week."

From Time Magazine Archive

A technology this sophisticated was not developed again until nearly 19 centuries later, when German-born Metallurgist Karl Wilhelm Siemens, who is generally credited with using an open-hearth furnace, produced the first high-grade carbon steel.

From Time Magazine Archive

At the distant end of the plaza, over the heads of the crowd, I could see the piles and tracks of an overhead crane, towering above what looked like an open-hearth furnace.

From Lone Star Planet by Piper, H. Beam