Ludy, Llewellyn V., 1875- [from old catalog], American Technical Society · Chicago, American technical society · leaf 51
ne convex downward, hence where these two oppositecurves join must be the point at which cut-off occurs. Even thissuggestion does not always hold but it will serve as an aid. The events are usually expressed in per cents of the stroke. Toobtain these per cents, proceed as follows: Locate the events… … - / F 3 4^56 7 89 Fig. 36. Indicator Card Laid Out for Determiningthe M. E. P. of the card between the ordinates C D and F L; measure also the distance C G. The per cent of stroke at which cut-off occurs would C Cbe —— XlOO. C G equals 1.62 inches; CL equals 3.72 inches. C Li Therefore 1.62Per cent…
Indicators for steam-engines · Steam-engines
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