Buildings and structures of American railroads. A reference book for railroad managers, superintendents, master mechanics, engineers, architects, and students (1893)
Berg, Walter G. (Walter Gilman), 1858-1908 · New York, J. Wiley & Sons · leaf 165
d and grooved boards nailed betweenthe wrought-iron Lbeam floor-joists under thefalse floor. The tub is bound by 14 wrought-iron hoops, 3J in. X ^^ in. The roof is octag-onal, formed of 4-in. X 6-in. rafters, 3-in. X 4-in. nailers, and 4-in. X 7-in. tie-beams, held to thepeak of the roof with a…
Railroads -- Buildings and structures · Buildings
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