Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 397
essure of steam beyond the endurance of the boiler;but to every boiler there is a limit of pressure withinwhich it is substantially safe. This point should beascertained by hydraulic test annually, and no excessof pressure beyond this limit should be allowed at anytime. The only sure preventive is…
Locomotives
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