ri- pressure is in full upon the cavity. ments. To do so it will be necessary to ^The relation between the pressures and deduce a general formula for circular areas may be expressed thus : valves in the same way as was that for Let 2^= the absolute pressure per square rectangular valves, and then… … Fig. 4. experimental ones, then not only the theo- p'=lifting force per square inch of retical formula for circular valves is veri- cavity, approximate. P=mean absolute lifting pressure fied, but that for rectangular valves, also. From my paper on A .Rational System per square inch, exerted by the…
Engineering
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