Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 185
by the pipe S, and passesin above the piston around the rod of thevalve moved by the rod m, while the steambelow the piston escapes through the pipe,valve and escape pipe 0. When the pistonreaches the bottom of the cylinder, thevalve is moved upward, closing the entrace Fig. 200. pipe aim opening… … 176 HEAT. centre does not coincide with the centre of the shaft. Thisgives a back and forward motion to the valve rod, as theshaft revolves.
Physics
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