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 459
No. 16, & in.; Nos. 14, 12, 11, ft in.; Nos. 10, 8, 7, ? in.; J in., -i in.; ft in., * in.; | in., £ inThey are usually spaced to make the pipe tight, that is, closer than is necessary for the strength ofthe seam ; but this in turn is governed by the pressure on the pipes. The following table…
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