Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 786
alve with the smallest amount of friction by a lever and connecting rod with the usual adaptation ofa 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 main and theatmosphere, during the various velocities. The pressure has been even increased to 48 inches ofwater without any sensible variations in the effect upon the gage indicating the pressure upon thehydraulic…
Mechanical engineering
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
