Locomotive and Boiler Inspector's Handbook

| March/April 1997

R.R. #13, Box 209, Brazil, Indiana 47834

The following information and rules were taken from Locomotive and Boiler Inspector's Handbook, compiled by A. J. O'Neil, copyright 1929. I have gleaned facts from the book which hopefully will cause us to think about the way we repair, operate and maintain our own steam boilers. A second part to this article will follow, consisting of Inspector's Examination Questions and Answers.

Rule 4:When the tensile strength for wrought iron shell plates is not known, it shall be taken at 50,000 pounds for steel and 45,000 pounds for wrought iron.

Rule 5: Shearing Strength of Rivets
Iron rivets in single shear...................38,000 pounds
Iron rivets in double shear.................76,000 pounds
Steel rivets in single shear..................44,000 pounds
Steel rivets in double shear................88,000 pounds

Rule 9: Inspection of Interior of Boiler
Time of inspection - The interior of every boiler shall be thoroughly inspected before the boiler is put into service and whenever a sufficient number of flues are removed to allow examination.

Rule 10:Flues to be removed - All flues of locomotive boilers in service, except as otherwise provided, shall be removed at least once every four years for the purpose of making a thorough examination of the entire interior of the boiler and its bracing. After the flues are taken out, the inside of the boilers must have the scale removed and be thoroughly cleaned and inspected. The removal of flues will be due after 48 calendar months' service, provided such service is performed within five consecutive years. Portions of calendar months out of service will not be counted.


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