. The Locomotive . BIGELOW, C. C. GARDINER, D. C. FREEMAN,W. G. LINEBURGH,GEO. P. BURWELL,W. B. CASSILY, CHIEF INSPECTORS. R. K. McMURRAY, WM. G. PIKE, JOSEPH CRAGG, WM. U. FAIR BAIRN, B. M. LOUD, H. D. P. BIGELOW, J. S. WILSON, F. S. ALLEN, W. S. FOX, A. C. GETCHELL, J. S.;WILSON, OFFICES. New York City. Philadelphia. Baltimore. Boston, Mass. Providence, B. I. Chicago, III. St. Louis, Mo. Hartford. Bridgeport. Cleveland. Cincinnati. Office,285 Broadway. 430 Walnut St. 10 10 Pemberton Sq. 42 Wevbosset St. 132 La Salle St. 404 Market St. 218 Main St. 3J8 Main St. 246 Superior St.
. The Locomotive . BIGELOW, C. C. GARDINER, D. C. FREEMAN,W. G. LINEBURGH,GEO. P. BURWELL,W. B. CASSILY, CHIEF INSPECTORS. R. K. McMURRAY, WM. G. PIKE, JOSEPH CRAGG, WM. U. FAIR BAIRN, B. M. LOUD, H. D. P. BIGELOW, J. S. WILSON, F. S. ALLEN, W. S. FOX, A. C. GETCHELL, J. S.;WILSON, OFFICES. New York City. Philadelphia. Baltimore. Boston, Mass. Providence, B. I. Chicago, III. St. Louis, Mo. Hartford. Bridgeport. Cleveland. Cincinnati. Office,285 Broadway. 430 Walnut St. 10 10 Pemberton Sq. 42 Wevbosset St. 132 La Salle St. 404 Market St. 218 Main St. 3J8 Main St. 246 Superior West Third St. PUBLISHED BY THE HARTFORD STEAM BOILER INSPECTION AND INSURANCE COMPANY. New Series—Vol. I. HARTFORD, CONK, MARCH, 1880. No. 3. Explosion of an Upright Boiler. This illustration represents the wreck of an ordinary upright tubular boiler. Itexploded on the 6th of November, 1879, with astonishing force. An inspector of theHartford Steam Boiler Inspection and Insurance Company reports as follows:. The boiler was 7 feet high by 42 inches diameter, and contained 70 tubes, 2 inchesdiameter. The shell was made of -,5g inch, and the furnace side of 4,-inch iron tube plates were f-inch thick. The following information was obtained regardingthe boiler. It had been inspected by the State Inspector, and a certificate issued allow-ing 70 lbs. steam pressure per square inch. The safety valve was loaded to blow off at05 lbs., the usual working pressure being 60 lbs. The watchman was instructed to start a fire about half-past six, and have not morethan 40 pounds of steam on at 7 a. m., the time for the arrival of the engineer. Fromseveral parties it was ascertained that the steam had been blowing off at the safety valvefor nearly an hour previous to the explosion, which occurred about 6 a. m. It is notknown whut the pressure was at the time of the explosion. The engine-house and boiler-house were entirely demolished, the ground being literally cleared, and the bo
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