Kirkman, Marshall M. (Marshall Monroe), 1842-1921 · New York and Chicago, The World railway publishing company · leaf 394
ryingtemperatures to which it is subjected, and secures to LOCOMOTIVE APPLIANCES. 385 the piston the same freedom of movement with highpressure steam as with low; and as its bottom end isfree and out of contact with all other parts, its longi-tudinal expansion or contraction is unimpeded and… … Fig. 1.The Crosby Indicator. The piston 8 is formed from a solid piece of thefinest tool steel. Its shell is made as thin as possibleconsistent with proper strength. It is hardened toprevent any reduction of its area by wearing, thenground and lapped to (it (to the ten-thousandth part ofan inch) a…
Locomotives
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