Search the Dictionary

a. & n. from Smelt. Smelting furnace (Metal.), a furnace in which ores are smelted or reduced.

A flatulent disease of sheep. Blast furnace, a furnace, usually a shaft furnace for smelting ores, into which air is forced by pressure. -- Blast hole, a hole in the bottom of a pump stock through which water enters. -- Blast nozzle, a fixed or variable orifice in the delivery end of a blast pipe; -- called also blas…

In forging and smelting, a trough in which tools and ingots are cooled.

Tin ore prepared for smelting.

The scum or refuse matter which is thrown off, or falls from, metals in smelting the ore, or in the process of melting; recrement.

The Cornish name for a forge used for smelting tin. Raymond

The art of smelting and casting metals.

urnace cadmiam or cadmia, the oxide of zinc which accumulates in the chimneys of furnaces smelting zinciferous ores. Raymond. -- Furnace hoist (Iron Manuf.), a lift for raising ore, coal, etc., to the mouth of a blast furnace.

A workman's name for the graphite which forms incidentally in iron smelting.

on produced by the excessive use of mercury, or by exposure to its fumes, as in mining or smelting.

metals, comprehending the whole process of separating them from other matters in the ore, smelting, refining, and parting them; sometimes, in a narrower sense, only the process of extracting metals from their ores.

Zoöl.) See under Masked. -- Pig bed (Founding), the bed of sand in which the iron from a smelting furnace is cast into pigs. -- Pig iron, cast iron in pigs, or oblong blocks or bars, as it comes from the smelting furnace. See Pig, 4. -- Pig yoke (Naut.), a nickname for a quadrant or sextant. -- A pig in a poke (tha…

en subjected to a (specified) process of manufacture; as, ore is the raw material used in smelting; leather is the raw material of the shoe industry. -- Raw pig, cast iron as it comes from the smelting furnace.

ss of metal, in a more or less impure state, which forms in the bottom of the crucible in smelting and reduction of ores.

A mass of iron on which the operation of smelting has failed of its intended effect; -- so called from Shadrach, one of the three Hebrews who came forth unharmed from the fiery furnace of Nebuchadnezzar. (See Dan. iii. 26, 27.)

A house or place for smelting.

hich is led along the vein when reached by the tunnel. Tunnel head (Metal.), the top of a smelting furnace where the materials are put in. -- Tunnel kiln, a limekiln in which coal is burned, as distinguished from a flame kiln, in which wood or peat is used. -- Tunnel net, a net with a wide mouth at one end and narrow…

A yellow or brown amorphous substance obtained as a sublimation product in the flues of smelting furnaces of zinc, and consisting of a crude zinc oxide.

, etc. (b) (Metal.) A fine grade of copper sulphide obtained at a certain stage in copper smelting. -- White miller. (Zoöl.) (a) The common clothes moth. (b) A common American bombycid moth (Spilosoma Virginica) which is pure white with a few small black spots; -- called also ermine moth, and virgin moth. See Woolly b…