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 195
Plan of Plymouth Breakwater. directed towards the sea, and forming angles of 158° with the centre portion. A transverse sectiontaken through the breakwater shows an average base of 290 feet, and the breadth at the top is 48 feet,with an average depth of water, at low spring-tides, of 36 feet; the… … Section of Plymouth Breakwater.—A A, high-water spring tides. B B, low-water spring tides. D, the fore-shore. proportion of 1 perpendicular to 7 horizontal, and the side next the land is 1 to 5; these sides werenot intended, originally, to have had so great a slope, but, in consequence of the…
Mechanical engineering
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