open-hearth furnace
Britishnoun
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
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
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The process not only enables steelmen to cook a batch of steel in 40 minutes instead of six to ten hours in an open-hearth furnace but produces metal with fewer strength-sapping impurities as well.
From Time Magazine Archive
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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
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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
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On the other hand it can be used to produce very high-grade steel from cheap and impure metal, when it acts more like an open-hearth furnace.
From The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel by Fred H. (Fred Herbert) Colvin
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.