Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 96
perator, the valve takesthe position shown at D, and the cage is forced up by thepressure on P of the water which rushes into C from themains. When the cord is pulled doM^n, the valve takes theposition shown at F (below), and the cage descends by itsown weight forcing the water out of C into the… … FiQ. 109.—Hydraulic lift-lock at Peterborougrh, Out., capable of lifting a 140-footsteamer 65 feet. 86 PRESSURE OF LIQUIDS
Physics
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