Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · 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 E Prepresents 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…
