Kirkman, Marshall M. (Marshall Monroe), 1842-1921 · New York and Chicago, The World railway publishing company · leaf 395
tral 25 386 LOCOMOTIVE APPLIANCES. socket, which projects both upward and downward;the upper part is threaded inside to receive the lowerend of the piston rod; the upper edge of this socket isformed to fit nicely into a circular channel in theunder side of the shoulder of the piston-rod when… … Fig. 2. The Crosby Indicator. (Sectional View.) the lower part of the socket; the head of this screw ishexagonal and may be turned with the hollow wrenchwhich accompanies the indicator. The piston rod 10 is of steel, and is made hollowfor lightness. Its lower end is threaded to screw intothe upper…
Locomotives
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