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 687
3639. … which are attached the axle-guards; 2, two end lateral pieces, of the C shape, which unite the lon-gitudinal sills, and carry the buffers and the coupling apparatus ; 3, two or more cross-braces of theI or C shape, which unite and stiffen the longitudinal sills at the intermediate points; 4,…
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