a Variation of power is now obtained with a single - bored cylinder , fitted with a combined piston and ram , as follows : — A ( Fig . 204 ) is the cylinder , fitted with the piston E and ram B ; the water from the accumulator enters the valve ehest F through the pressure pipe J and the inlet valve… … ton E . It is seldom necessary to Fig . 205 . — Detail of Valves for Cylinder of Double have more than these lower and power Hydraulic Crane . — F , Valve ehest . h , Inlet valve . 1 , Outlet valve . l , Valve for higher powers ; but where a third higher power . m , Valve . N , Relief valve . or…
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