Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 580
es connecting the upper and under chambers; bolted fast toupper chambers, but connected to the under chambers by expansionjoints. o, the steam-valves, and p, the exhaust-valves, fixed in pairs on thespindles, and denominated equilibrium or balance valves. q r, the valve-spindles, having their under…
Mechanical engineering · Mechanics · Engineering
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