Buildings and structures of American railroads. A reference book for railroad managers, superintendents, master mechanics, engineers, architects, and students (1893)
Berg, Walter Gilman, 1858-1908 · New York Wiley · leaf 158
n 3-in. X 5-in. joists, spaced about 18 in. centres, resting on 5-in. X J 2-in. floor-beams, spaced 18 in. centres, which in turn are supported by four trestle-bents placed IFA TER ST A TlOiVS. parallel with the track and spaced 6 ft.io in. centres. Between the caps of the trestle-bents and… … Fig. 250.—Cross-section.
Building · Railroads
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