International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 425
Fig. 483. sheet piling was given in Fig. 405, Art. 1554. The frameis light, and readily shifted by hand. The hammer A isoak. It is raised by the rope B, which works in the singlepulley C. The hammer is usually worked by hand, three orfour laborers generally being sufficient. 1587. Cost of Pile…
Railroad engineering
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