Steam engines, prepared in the Extension division of the University of Wisconsin (1919)
Shealy, Edward Marvin · New York, McGraw-Hill · leaf 96
t in order to give flexibihty between the rod and the piston.The piston rod passes through the cyhnder head 2, and its end isjoined to the pencil arm 16 by means of a short link 14. One endof the pencil arm is pivoted at 18. The other end, which movesover a sheet of paper on the drum 24, carries a… … Fig. 51. of this spring. These springs are interchangeable and severalare supplied with each indicator. The number of the springindicates the number of pounds pressure per square inch which,acting upon the piston, will move the pencil point one inch; forexample, if a No. 60 spring is in the…
Steam-engines
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