Handbook for the use of electricians in the operation and care of electrical machinery and apparatus of the U.S. seacoast defenses (1902)
United States. War Dept, Anderson, George Lucius, 1849-1934 · Washington, Govt. Print. Off. · leaf 28
12. Lead. Fig. 13 shows admission of steam to head end of cylinder before the end of astroke, in order to form a cushion. … In fig. 14 the piston (also crank) is at head dead center luider fnll boiler pres-sure, and valve is at lead by definition.
Electric machinery · Searchlights · Coast defenses
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
