Mechanical movements, powers, devices and appliances (1901)
Hiscox, Gardner Dexter, 1822?-1908 · New York, N. W. Henley & company · leaf 81
242. SINGLE D, SLIDE VALVE,with doutle steam and exhaustports. Central steam ports openinto steam chest at the side of thevalve. … 243. GRIDIRON SLIDE VALVE, foi large port area with small motion of thevalve.
Mechanical movements
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