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 378
WOODRUFF & BEACHS STEAM ENGINE. 361 … through the spindle and the hubs D and Z>, and is attached tothe feathers, thereby raising or depressing the feathers, which,acting on their respective spiral grooves, instantly alters the liftof the cam on the shell (C), and brings the closing toe (t) onthe shell (C) into proper position for…
Steam engineering · Steam-engines
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