Mechanical movements, powers, devices and appliances; (1903)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The N.W. Henley & co. · leaf 196
rom which the wind , pressure per square foot may be ob- ^J* tained from the measured hydrostatic pressure of the water. 698. COMPOUND POHLE AIRLIFT.—In compounding an air Hftfor mine drainage but one-half thedepth of sump is required as for a sin-gle lift and by still further duphcatingthe lifts,… … i88 AIR POnER APPLIANCES.
Mechanical movements
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