Modern American locomotive engines; their design, construction and management. A practical work for practical men (1883)
Edwards, Emory, b. 1841 · Bridgeport, Conn., Frederick Keppy · leaf 162
ther containingvessel tends to force the same into a circular form, if itdoes not possess that form ; and if it does, the pressurehas a tendency to sustain it in that form. Hence, thestrongest form for a boiler is a circle, and any de-parture from that shape makes itself manifest by thenecessity of…
Locomotives
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