Metal-work; a handbook for teachers and students (1914)
Adam, Hugh M. [from old catalog], Evans, James Humphrey, [from old catalog] joint author · New York, Longmans, Green and co.; London, E. Arnold · leaf 57
wn in Fig. 9,and consists of two square converting pots or boxes formedof fire-brick slabs, and a narrow fire-hearth, about 15 incheswide, running the whole length between the boxes, with a 39 40 METAL-WORK firing door at each end. The whole is covered by an archedroof, through which small chimneys… … Fig. 9.—Crucible Steel Furnace. and f inch thick. The charge is about 5 to 6 tons per box,and the loading consists of a covering of pieces of charcoalabout the size of marbles, from which the dust has been care-fully sifted, covered in turn by a layer of bars J inch apart.Alternate layers of…
Metal-work
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
