Kirkman, Marshall M. (Marshall Monroe), 1842-1921 · New York and Chicago, The World railway publishing company · leaf 352
formed when theboiler is cooling down. Hence, if the valve leaks atsuch time, cap K should be removed and this springexamined. LOCOMOTIVE APPLIANCES. 343 THE LITTLE GIANT PNEUMATIC BLOW-OFF COCK. The accompanying engraving shows clearly byarrows the flow of pressures and fluids when thisblow-off… … Little Giant Blow-Off Cock. When the air pressure is withdrawn the spring behindthe air piston returns it and the boiler pressure againstthe valve assists in the return to its seat. Shouldsome scale or other substance remain beneath thevalve B, by screwing in on the hand wheel, \al\c.\may be forced…
Locomotives
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
