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 882
nated a false or shell cover—a form often adopted for economy when thepressure is entirely down. In this case there is only one brass, the cover part being cast with side pro-jections resembling the ends of a brass, and with projections on its upper surface resembling the nutsand ends of bolts of… … The form of pedestal represented under the footstep-bridge by Fig. 2107, is one of the best examples,combining strength, elegance, and simplicity of make. It is in every way appropriate for its purpose.The base and cover fit together with a degree of symmetry and character which are not found in…
Mechanical engineering
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