Steam engines, prepared in the Extension division of the University of Wisconsin (1919)
Shealy, Edward Marvin · New York, McGraw-Hill · leaf 95
e diagram will represent foot-pounds ofwork. This is the same principle upon which an indicator drawsa work diagram for the cylinder of a steam engine. The indicatoris so arranged that it draws on a sheet of paper a diagram whichrepresents by its height the pressure of the steam in the cylinderand… … The Indicator.—An indicator must record the pressure in thecylinder at every part of the stroke. In order to do this, theindicator consists of two parts, one of which moves in a verticaldirection, with the steam pressure in the cylinder and the otherwhich moves in a horizontal direction in unison…
Steam-engines
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