Mechanical and marine engineering science ... Specially written as a handbook to the Board of Trade examinations for extra-first-class engineers (1909)
Somerscales, A. N · Glasgow : J. Munro; London, Simpkin, Marshall, Hamilton, Kent · leaf 89
t these up in turn, and so every half-hour or sothe stacks on the right and left of the furnace change duties—onepair are receiving heat from the waste gases while the other pair 86 SIEMENS-MERTIN PROCESS FOR OPEN-HEARTH STEEL. are giving up heat to the unburnt gases. The stacks of firebrickare… … Fig. 21. furnace is hot, and the surface of each layer partly fused before thenext layer is rammed in. The charge is now introduced; this consists of about 30 percent, of Bessemer pig iron (not melted), and the rest of steel scrap,consisting of shearings, broken rails, etc. The cast iron melts…
Naval architecture
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