Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 778
e with the smallest amount of friction by a lever and connecting rod with the usual adaptation ola water joint, and the effect is, that when the machine from any cause is reducing the pressure of gasupon the hydraulic main below that of the atmosphere, and thereby causing a partial vacuum in… … The most perfect equilibrium is maintained between the interior of the hydraulic mahr and theatmosphere, during the various velocities. The pressure has been even increased to 43 inches ofwater without any sensible variations in the effect upon the gage indicating the pressure upon thehydraulic…
Mechanical engineering · Mechanics · Engineering
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