Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 398
392 LOCOMOTIVE ENGINEERING being equal. The higher the pressure of steam, theless will a common safety valve lift; at most, its lift isvery slight, and with the increasing pressure of steam,the lift will not increase sufficiently to relieve theboiler under all circumstances; but the pressure canand…
Locomotives
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