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 501
Fig. 175 This decrepancy is caused by insufficient lead on thehead end, plainly shown by the inclination inward of theadmission line, and the rounded corner at s. 488 Steam Engineering The compression is excessive, especially on the head end,as indicated by the curve at L. … < ^ These two factors, lead and compression, may always bedistinguished by observing the character of the admissionline. L Diagram Analysis 489
