Questions and answers on pumps and pumping machinery (1912)
Wakeman, William Henry, 1855- [from old catalog] · Chicago, The Joseph G. Branch publishing company · leaf 98
318. Q. How does this operate, so far as thewater piston and valves are concerned? A. The piston is given motion that does not resultin severe shocks and jars. The valves are opened andclosed slowly. 319. Q. What other plan is adopted for the loca-tion of these wheels ? A. They are sometimes… … 88 QUESTIONS AND ANSWERS ON
Pumping machinery
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