Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives (1916)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co., pub. for Sears, Roebuck & co. · leaf 230
ressure, and they can both be obtained fromthe diagram by measuring with the scale adapted tothe spring used. Thus, in Fig. 105 the absolute initialpressure measured from the line of perfect vacuum Vto line B is 77 lbs., and the absolute terminal pressureMeasured from V to line B is 21 lbs. The… … Figure 105 Rule. Multiply absolute initial pressure by thehyperbolic logarithm of number of expansions plus itnd divide product by number of expansions. Thus]eferring to Table 14, it will be seen that the hyper-•olic logarithm of 3.65 is 1.2947, to which 1 must bedded. Then ^^47 = ^ ^ which .g ^ ^…
Locomotives
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