Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 213
is material alone are usually of short span and simplegirders. See Strength of Materials. Cast iron as a material is not considered as safe as wroughtiron or wood; from some flaw, from frost, or from sudden jars, it gives way without notice ; but as it is6tronger per square inch than wrought iron… … ^i> tig.680 represents the elevation, fig.631 the plan, and figs. 632, 3 and 4, the details of framing. Thisbridge consists of two iron trusses of 50 feet span, and 9 feet high. What would be called the nppe:chord consists of cast-iron pipe, 6 inches in diameter, and i inch thick, equal to 9…
Mechanical engineering · Mechanics · Engineering
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