Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 152
hydraulic engine—The ComptonHydraulic Motor—attached to and operating a gas-com-pressor. It shows a style of water motor in large use in con-tiecKon with city water-mains. A pressure of 15 to 20 lbs. per<;quare inch is sufHcicnt to operate it ; the motor here illustratedoccupies a floor space of… … FiQ. 133. taneously opened and closed by the motion of the piston ; thisvalve motion is designed to overcome the back pressure; it hasa governor, incorporated in the valve-motion for the purposeof maintaining uniform pressure on the main pipes. HYDRAULIC PACKINGS. Generally speaking a packing is a…
Hydraulic machinery · Pumping machinery
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