Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 746
RAILROAD CARS. 717 … Fio. 4.—Barr vestibule construction. for its weight will carry a greater load than any bolster of the ordinary form. To give thisbody bolster greater carrying capacity, two 4-in. I-beams are inserted between the 6-in.channels and the sills. These extend from side bearing to side bearing across the…
Mechanical engineering
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