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
ills of the frame ; the jaws are supported on rubber springs, whichare placed on the top of the axle-boxes. The floor has only a portion of its surface horizontal, towardwhich the outside portions incline; this horizontal por-tion constitutes the dump-door through which coal is dis-charged from the…
Mechanical engineering -- Dictionaries
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