Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 83
243. GRIDIRON SLIDE VALVE,for large port area with small motion of thevalve. … 44. ROTARY VALVES.-^The valves K and L arethree-winged cylinders, andare nearly balanced by thedouble inlet ports of thevalve chamber. STEAM POWER. 73
Mechanical movements
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