Ludy, Llewellyn V., 1875- [from old catalog], American Technical Society · Chicago, American technical society · leaf 26
has been reached, thenreduce the pressure by the same increments until zero is reached.The operation of taking both the upward and the downward read-ings should be continuous, stopping only long enough to change theweights and to make the proper indications. Measuring the Cards. After the cards… … Fig. 10. Engine Showing Two Indicators Screwed Into Cylinder The cards, Fig. 9, show the records obtained from tests ofvarious springs. It is evident that some of the records taken withincreasing pressures do not coincide with the corresponding recordwhen going down or with decreasing pressures.…
Indicators for steam-engines · Steam-engines
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