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 335
our wheels, A A, which are either composed of cast-ironcentres with steel tires, or oftcner are of the chilled cast iron used on American cars. Their axlesare provided with inside journals, carrying boxes of a similar construction as those of the driving-axles ; on each two boxes of the same side… … suspended by means of hangers iV attached to the equalizers by pins. The spring-hangers are equallydistant from the centre of the equalizers, which is also the centre of the spring. In this way equalweights must fall on each of the axles. It remains now to describe how the weight of the locomotive…
Mechanical engineering -- Dictionaries
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