Hydraulic Valve. A valve for regulating the distribution of water in the cylinders of hydraulic elevators, cranes and other water pressure machines and devices.
Hydraulic Wheel. One for raising water by applied power, as the Noria Scoop wheel, tympanum, etc. See [illustrations] in section relating to the history of the pump.
Impact. The single instantaneous shock of a body in motion when it strikes against another body either in motion or at rest.
Leakage. The loss of water from any cause.
“Lift and drop of a valve.” This term indicates the amount of “play” up and down, designed to be given to a valve by its designer.
Liner. A piece of iron or other metal put behind or on a piece to take up its wear.
Mississippi River
Gauge Cock.
Lost Motion. Motion that is not transmitted on account of the looseness of the parts, hence it is lost.