. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . \*v.^i^6y-\\M 2j ?j_ _^<:yjLt^yjji)i PRESSURE OF THE WHEEL ON THE RAIL 47 momentum, acting along a line of direction tangent to the vertical curve of therail; and, second, the force of gravity. The trajectory of the wheel acting under. Fig. 15. — Rail Profile taken with a Railroad Automatic Track Inspector * 60- *\

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Keywords: ., bookcentury1900, bookdecade1910, bookidsteelrailsth, bookyear1913