Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 546
of the initial pressure, buteach having the same area as the initial rectangle A B H I.Now the area of the rectangle A B H I represents the workdone by the steam up to the point of cut off, and the areaof the hyperbolic figure enclosed by the lines B H R Frepresents the work done by the expansion… … Fig. 214 lines A B, A C, A D, etc., extend in geometrical ratio, as1, 2, 4, 8, 16, etc., the successive areas, B H L C, B H K D,B H G E, etc., increase in arithmetical ratio, as 1, 2, 3, 4,etc. On the principles of common logarithms, which representin arithmetical ratio natural numbers in…
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