Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 302
Figs. 2791 and 2792 represent two boats built on the tubular principle. That shown in Fig. 2791has a length over all of 40 ft.; diameter of tubes, 3 ft.; distance apart, 3 ft. 6 in. In Fig. 2792 thetubes, instead of being circular, are flat on the inner sides. Their ends are not brought together,…
Mechanical engineering -- Dictionaries
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