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 237
25C0. … which consists of a semicircle of light brass, immediately above which, and loose on the rod, is acork float A. When the reservoir is reversed for filling, the oil floats the cork, closes the valve, andso prevents an overflow of oil during the act of replacing the cistern. Schneiders modification…
Mechanical engineering -- Dictionaries
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