Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 685
withopenings through which the outsideair rapidly enters and exits beforeit becomes heated by the sun insummer; the openings being closed in winter, the air-space becomes a very efficient protector of thecar-chamber from the influence of low temperature. The car-body (bottom, sides, ends, and… … RAILROAD CARS. 655 ing the air at the top, causes it to descend on the merchandise. Fresh air is admitted to the car bya regulated opening C, at the end of the car, and passes at first through tubes under the ice, where it is reduced to a proper temperature. Thefoul air of the chamber is forced up…
Mechanical engineering -- Dictionaries
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