Manual of recommended practice for railway engineering and maintenance of way (1905)
American Railway Engineering and Maintenance-of-Way Association · Chicago, Ill. : The Association · leaf 90
Fig. 9.—Small Pitch Pocket. … Fig. 10.—Pitch Streak. 80 WOODEN BRIDGES AND TRESTLES. ♦SPECIFICATIONS FOR BRIDGE AND TRESTLE TIMBER AND PILING. RECOMMENDED STANDARD SPECIFICATIONS. GeneralRequire-ments. GuardRail. BridgeTies. Stringers. Caps andSlUs. BRIDGE AND TRESTLE TIMBER. 1. All timber shall be cut from sound trees, grain…
Railroad engineering · Railroads
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