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 246
w#a Pe>-:ss Disc ^ alvf. foe A is PrinGround Plan. … Macdslat s Disc Valve for Aie Pcirp.Section. 230 COXSTKUCTION OF VALVE PLATES. bolt should be riveted over on the nut to prevent it from unscrew-ing, and the top end should have a split pin through the pointfor the same purpose. The hole through which the bolt passesshould be tapped, though the…
Steam engineering · Steam-engines
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