Handbook for machine designers, shop men and draftsmen (1916)
Halsey, Frederick A. (Frederick Arthur), 1856-1935 · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 437
I 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Per cent. SavedFrom the final temperature at the left trace horizontally to the diagonal leading from the initial temperature and then down where read the percentage of saving.Fig. 26.—The saving due to heating feed water for steam boilers.… … 8000 2500 Total Loss per Year of 320 DaysDollars 1.00 1,50 2.00Price of Coal per TonDollars 3.00 From the price of coal per ton trace upward to the line for thethickness of scale, then horizontally to the line for the numberof tons of coal consumed per day, then down, and read the lossin dollars…
Machine design
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