A catechism of the steam engine in its various applications to mines, mills, steam navigation, railways, and agriculture. With practical instructions for the manufacture and management of engines of every class (1864)
Bourne, John · New York, D. Appleton & co. · leaf 241
Equilibrium Gridiron Slide Valve.Longitudinal Section. Scale $ inch = 1 foot. 451. Q.—What species of valve is that shown in figs. 39and 40? A.—It is an equilibrium gridiron valve; so called becauseit lets the steam in and out by more than one port, a a are Fig. 40. … Equilibrium Gridiron Slide Valve.Back View with. Ring removed. Scale i inch = 1 foot. the ordinary steam passages to the top and bottom of thecylinder; b b is the ring which rubs against the back of the CONSTRUCTION OF THE ECCENTEIC. 225 valve casing, and d is the eduction passage, s s s s shows…
Steam engineering · Steam-engines
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