Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 913
Fig. 2.—Chapman valve. … Fig. 4.—Water-relief valve. Fig. 3.—Valve with drip. VALVES. 883 opened enough to admit steam, the soft-metal seat is removed out of the direct line of thesteam current, thus bringing the cutting action of the steam upon the cylindrical projection,or plug, instead of on the seat. The Chapman…
Mechanical engineering
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