Floor Surfaces in Fireproof Buildings

Abstract

Railway Rail Production and FailuresBULLETIN No. 170 of the American Railway Engineer ing Association dealt with statistics of rail failures fur nished to the American Railway Association by various, but not all, of the railways in the United States and Canada. These show that during the year ended Octo ber 31st, 1913, there were 63,472 tons rolled on the Bes semer process and 703,557 tons by the open-hearth process. In 1909, when about the same total tonnage was rolled, the figures were 432,155 for Bessemer and 461,261 for open-hearth. The failures in 1911-the years 1912 and 1913 are too recent to afford any c()n�lusions as to failures-were 37.4 per 10,000 tons of open-hearth rails and 94.2 per 10,000 tons of Bessemer rails, which, taking the open-hearth failures as 100 per cent, means 252 per cent for the Bessemer. In 1909 the open-hea rth rails had 109 failures per 10,000 tons and the Bessemer 212.4, which, again taking the open-hearth failures as 100 per cent, gives 195 per cent for the BeRsemer. The percentages in favor of open-hearth rails have increased year by year, which, the report says, suggests the thought that there were faulty practices in the early rollings of open-hearth rails since improved upon.