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 176
the support derived from thejoining of the flange of the head to the body of theboiler.) To ascertain the actual resistance of internalsteam pressure to be overcome and provided for, wefirst ascertain the area of the head in inches, and mul-tiply it by the internal pressure per square inch. Thearea… … 166 LOCOMOTIVE ENGINES. boilers, therefore only half the head is dependent uponthe tubes for support, 1,809.6^2=904.8 square inches.Again we find that the lower half of the head is largelytaken up by the tubes, consequently the area uponwhich the internal pressure can act must be further re-duced…
Locomotives
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