arrington, England, has been amply powerful. lf required for temperature up to the cury, falling through the space between the internal tube and long and favorably known in Europe, and has recently been fusing point of cast iron, it requires a chimney six feet high. largely introduced in this… … Fig. 3.—Small Crucible Furnace. Fic. 4.—Ladle Furnace. is lowered until the mercury in the pump will sink no farther. The stopcock, ¢, is then closed and the operation The ladle furnace represented in Fig. 4 takes ladles up to is repeated two or three times, The Sprengel pump, which six and a half…
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