Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 491
Working-beam.—Scalk.—J inch=l feot.81 482 ENGINES, DETAILS OF. A bushel of Welsh coal now used in Cornwall weighs 94 pounds. fiofottva engines.—A rotative engine of Messrs. Cairds, is represented in Fig. 1361, ■which is a generalelevation. … Figs. 1362 and 1363 are en-larged views of the working-beam, which is of cast-iron;and Figs. 1364 and 1365 aresections of the same. Thesizes of this beam agree, withtolerable nearness, with thosegiven in our tables of dimen-sions. The depth of beam atthe centre is usually aboutequal to the diameter…
Mechanical engineering
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