. American engineer . ated Medium OldWheels. -Set I; Special Davis MatedCast Steel Wheels. SeiJ. Parallel to fhe Base Line. From the percentages given in the last line of the table, it isevident that the mated cast iron wheels gave a much higherfrictional resistance than the mated cast steel wheels. It wasexpected that there would be a difference in the frictional re-sistance of cast steel and cast iron wheels, but such a largedifference was not anticipated, and the problem of assigning areason for this great difference became more difficult when itwas found that the mated cast iron wheels wit
. American engineer . ated Medium OldWheels. -Set I; Special Davis MatedCast Steel Wheels. SeiJ. Parallel to fhe Base Line. From the percentages given in the last line of the table, it isevident that the mated cast iron wheels gave a much higherfrictional resistance than the mated cast steel wheels. It wasexpected that there would be a difference in the frictional re-sistance of cast steel and cast iron wheels, but such a largedifference was not anticipated, and the problem of assigning areason for this great difference became more difficult when itwas found that the mated cast iron wheels with good contoursgave a higher frictional resistance than did two sets of non-
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
