Twentieth century hand-book for steam engineers and electricians, with questions and answers .. (1905)
Swingle, C. F. [from old catalog], Horstmann, Henry Charles, 1858- [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] · Chicago, F. J. Drake & co. · leaf 247
tter appearing diagramwould have been obtained by using a No. 30 spring. The diagram shows very slight compression, but thelead is correct. The point of cut off is not so clearlydefined as it should be, and the author attributes thecause of this to the spring being too weak for thereason that when… … FIGURE 76. The absolute initial pressure, as shown by Fig. 75,was 47.5 lbs., and the absolute terminal pressure was8.5 lbs. The ratio of expansion would therefore be47-5 * 8-5 = 5-6. The steam consumption per I. H. P.per hour was 14 lbs. Fig. JJ is from the same engine, and is here intro-duced for…
