. Handbook of railroad construction; for the use of American engineers. Containing the necessary rules, tables, and formulæ for the location, construction, equipment, and management of railroads, as built in the United States .. . Span. Rise. Bolster. stringer. Kod. 15 G ]2Xl-i 12X12 2-5 X r, 1 inch 20 7 MXU 12X12 2-5 X 8 11 inch 25 8 14X14 12X15 2 —5X 9 If inch 30 10 15 X 13 12 X 18 2 —5X 10 1^ inch Fig. 9G. 15 to 30 feet. It/ir/f^Mj ^.l ^^ Span. Eise. stringer. , ;!t. Rod 15 5 12X12 8X 8 1^ 20 6 12 X 13 9X 9 H 25 7 12X15 10 X 10 H 30 8 12 X 18 10 X 12 n 188 HAXDEOOK OF RAILROAD
. Handbook of railroad construction; for the use of American engineers. Containing the necessary rules, tables, and formulæ for the location, construction, equipment, and management of railroads, as built in the United States .. . Span. Rise. Bolster. stringer. Kod. 15 G ]2Xl-i 12X12 2-5 X r, 1 inch 20 7 MXU 12X12 2-5 X 8 11 inch 25 8 14X14 12X15 2 —5X 9 If inch 30 10 15 X 13 12 X 18 2 —5X 10 1^ inch Fig. 9G. 15 to 30 feet. It/ir/f^Mj ^.l ^^ Span. Eise. stringer. , ;!t. Rod 15 5 12X12 8X 8 1^ 20 6 12 X 13 9X 9 H 25 7 12X15 10 X 10 H 30 8 12 X 18 10 X 12 n 188 HAXDEOOK OF RAILROAD CONSTRUCTION. Fig. 94> 15 to 30 pan. Kise. Stringer. Braces. Rods. Lattice. 15 5 2 — 8x8 2 — 5 X 5 1 2XG 20 6 2 — 8X9 2 —5XG n 2X8 25 7 2 —8X 10 2 — 5x8 If 2X9 30 9 2 —8X 12 2 — 5x9 H 2X10 span. 15 202530 Fig. 97. 15 to 30 feet.
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectrailroadsdesignandco
