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
side air-cases ; B, the relieving tubes, of the same depth as the space between the decks and the boats floorC C, Fig. 2790, are spaces beneath the deck, placed longitudinally at the midship part of the boatand filled with cases packed with cork forming part of the ballast; D, scuttle for… … 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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