Marine engines; problems, notes and sketches. Additional to the text-book used in the instruction of naval cadets of the second class, United States Naval Academy (1899)
United States Naval Academy. Dept. of Marine Engineering · Annapolis : Dept. of Steam Engineering, U. S. Naval Academy · leaf 37
inthe sectional view. By turning the threaded hand wheel, in Fig.12, the stem and valve settle slowly into place and the valve facesare forced tightly against both valve seats. In large gate valves the pressure may be so great that the valvecan be raised only by applying great power to the hand…
Marine engines
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