Ripper, William, 1853-1937 · London, New York [etc.] : Longmans, Green and co. · leaf 101
ir^i … Fig. 89. as shown. The degree of expansion is regulated by varying thedistance apart of the two plates as required, by means of a right andleft handed screw. In Fig. 90, MV is the main or distributing valve, which is anordinary simple slide-valve, with the addition of pieces at the endsto form…
Steam-engines
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