reverberatory hearth

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• reverberatory furnace — Furnace used for smelting, refining, or melting in which the fuel is not in direct contact with the contents but heats it by a flame blown over it from another chamber. Such furnaces are used in copper, tin, and nickel production, in the… …   Universalium

• Reverberatory furnace — A reverberatory furnace is a metallurgical or process furnace that isolates the material being processed from contact with the fuel, but not from contact with combustion gases. The term reverberation is used here in a generic sense of rebounding… …   Wikipedia

• hearth — hearthless, adj. /hahrth/, n. 1. the floor of a fireplace, usually of stone, brick, etc., often extending a short distance into a room. 2. home; fireside: the joys of family and hearth. 3. Metall. a. the lower part of a blast furnace, cupola, etc …   Universalium

• hearth — [[t]hɑrθ[/t]] n. 1) bui the floor of a fireplace, usu. of stone, brick, etc., often extending into a room 2) mel a) the lower part of a blast furnace, cupola, etc., in which the molten metal collects and from which it is tapped out b) the part of …   From formal English to slang

• hearth — /haθ / (say hahth) noun 1. that part of the floor of a room on which the fire is made or above which is a stove, fireplace, furnace, etc. 2. the fireside; home. 3. Metallurgy a. the lower part of a blast furnace, cupola, etc., in which the molten …  

• reverberatory furnace — furnace in which the heat is deflected downward from the furnace s roof toward its hearth …   English contemporary dictionary

• Open hearth — Open O pen, a. [AS. open; akin to D. open, OS. opan, G. offan, Icel. opinn, Sw. [ o]ppen, Dan. aaben, and perh. to E. up. Cf. {Up}, and {Ope}.] 1. Free of access; not shut up; not closed; affording unobstructed ingress or egress; not impeding or… …   The Collaborative International Dictionary of English

• Open-hearth furnace — Open O pen, a. [AS. open; akin to D. open, OS. opan, G. offan, Icel. opinn, Sw. [ o]ppen, Dan. aaben, and perh. to E. up. Cf. {Up}, and {Ope}.] 1. Free of access; not shut up; not closed; affording unobstructed ingress or egress; not impeding or… …   The Collaborative International Dictionary of English

• Open-hearth process — Open O pen, a. [AS. open; akin to D. open, OS. opan, G. offan, Icel. opinn, Sw. [ o]ppen, Dan. aaben, and perh. to E. up. Cf. {Up}, and {Ope}.] 1. Free of access; not shut up; not closed; affording unobstructed ingress or egress; not impeding or… …   The Collaborative International Dictionary of English

• Open-hearth steel — Open O pen, a. [AS. open; akin to D. open, OS. opan, G. offan, Icel. opinn, Sw. [ o]ppen, Dan. aaben, and perh. to E. up. Cf. {Up}, and {Ope}.] 1. Free of access; not shut up; not closed; affording unobstructed ingress or egress; not impeding or… …   The Collaborative International Dictionary of English

• open-hearth process — a process of steelmaking in which the charge is laid in a furnace (open hearth furnace) on a shallow hearth and heated directly by burning gas as well as radiatively by the furnace walls. [1885 90] * * * or Siemens Martin process Steelmaking… …   Universalium