. The Locomotive . All longitudinal seams double-riveted, withthe necessary man-hole on topfor getting into the boiler forinspection and cleaning it in bottom of fronthead for cleaning out underthe tubes. The shell of theboiler was of best quality CNo. 1 iron; T5g thick;- Theheads were best quality flangeiron, | thick, being well braced,having angle-iron braces rivet-ed to the heads, and stays fromthence to the shell. It wasfurnished with the usual ap-pliances: one safety-valve 3inch diameter, three gauge-cocks, etc., and at its comple-tion was examined and sub-jected to a hydrau
. The Locomotive . All longitudinal seams double-riveted, withthe necessary man-hole on topfor getting into the boiler forinspection and cleaning it in bottom of fronthead for cleaning out underthe tubes. The shell of theboiler was of best quality CNo. 1 iron; T5g thick;- Theheads were best quality flangeiron, | thick, being well braced,having angle-iron braces rivet-ed to the heads, and stays fromthence to the shell. It wasfurnished with the usual ap-pliances: one safety-valve 3inch diameter, three gauge-cocks, etc., and at its comple-tion was examined and sub-jected to a hydraulic pressureof 150 lbs. per square inch,and considered safe at a steampressure not exceeding 100 square inch.* The above description is quoted from the report of Inspector Fairbairn of theEastern Department. Of the following illustrations Figures 1, 2, and 3 represent the wreck of the boiler * The examination and test were made by the government inspector. The boiler was never under guaranteedinspection. 12. Fig. 1.—Wreck of the Boiler House. 176 THE LOCOMOTIVE, [November, and building. They are copies of photographs taken soon after the explosion. Thecuts that follow are intended to illustrate the theory of the explosion. Cut No. 4 is a longitudinal section of the boiler as originally made, omitting the patches which have been put onsince, but showing at A the loca-tion of the deposit which per-mitted the iron beneath it tobecome overheated. The explosion of this boileroccurred in April, 1878, by whichthree persons were killed, and anumber more wounded. An un-usual interest was excited by thisaccident, and a number of ex-perts were called to testify as tothe cause of the disaster, andalthough there was no disagree-ment among trained boiler in-spectors, still there was no doubtexpressed by one expert witnessas to the original soundness ofthe iron, and the correctness ofthe construction and marks upon the plates of theback part of the boiler seemed,from the
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Keywords: ., bookauthorhartfordsteamboilerin, bookcentury1800, bookdecade1860
