. Railway mechanical engineer . Hollenden, Cleveland, Ohio, May 23 to May 26,1916. The association is to be congratulated upon the shorttime which has elapsed between the holding of the conventionand the publication of the complete proceedings in bookform. Boiler Expansion Experiments Tests to Determine Relative Movements of Fire-box Sheets and Tubes Under Working Conditions BY D. R. MAC BAIN Superintendent Motive Power, New York Central West, Cleveland, Ohio SOME experiments were made on the New York Centralin 1910 to determine why the side sheets of certain newfireboxes would crack verticall
. Railway mechanical engineer . Hollenden, Cleveland, Ohio, May 23 to May 26,1916. The association is to be congratulated upon the shorttime which has elapsed between the holding of the conventionand the publication of the complete proceedings in bookform. Boiler Expansion Experiments Tests to Determine Relative Movements of Fire-box Sheets and Tubes Under Working Conditions BY D. R. MAC BAIN Superintendent Motive Power, New York Central West, Cleveland, Ohio SOME experiments were made on the New York Centralin 1910 to determine why the side sheets of certain newfireboxes would crack vertically between the stayboltholes. In one case it was found necessary to put in new sheetson a new boiler that had been in service only about four failed was taken for the experiment. Tram marks were madeon the inner and outside sheets when the boiler was engine was then fired up and after 200 lb. pressure hadbeen raised and the pops had been blowing for some time, thefire was quickly dumped and the measurements between the. Fig. 1—Tram Marks Measured for Expansion months. Mr. Linderman, then boiler maker on the Michigan tram marks taken on both the inside and outside. It wasCentral, conceived the idea of comparing the expansion of found that the outside sheet expanded 3/32 in. more than the inside sheet. This same experiment was again tried under more favor-
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
