. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . /32-in., or a total reductionin diameter of ij4-m- You will also ob-serve that when a wheel flange is allowedto wear down to i in., the cut in the wheellathe is 12/32 in., or a total reduction indiameter of the wheel is ^-in. Fromthe point of economy the writer is of theopinion that it is more profitable for arailroad company to remove stctl-tiredwheels from coaches when the flange isworn down to 13/16 or 1% in. flangethickness. This requires a reduction in diameter of ^s iu- and J4 in., and
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . /32-in., or a total reductionin diameter of ij4-m- You will also ob-serve that when a wheel flange is allowedto wear down to i in., the cut in the wheellathe is 12/32 in., or a total reduction indiameter of the wheel is ^-in. Fromthe point of economy the writer is of theopinion that it is more profitable for arailroad company to remove stctl-tiredwheels from coaches when the flange isworn down to 13/16 or 1% in. flangethickness. This requires a reduction in diameter of ^s iu- and J4 in., and is enoughto restore the fillet sufficiently to arrestthrust. It is wasteful of material and alsodangerous to permit wheels to run when theflanges have become i in. down to J4 iu-in thickness. It is considered that 1/16in. of steel, after it has been applied to a34-in. wheel is worth approximately $ will therefore observe that it costsless in labor to remove, re-turn and re-apply a pair of wheels than it does topermit them to remain in service and al-low the vertical flnnge wear to continue. CLEARING THE SNOW. BERGEN RAIL-WAY, NORWAY, LAST MARCH. until the wheel flange becomes worn downto the thickness mentioned. MEASUREMENTS FOR AND WHEELS. STEEL Thickness Depth of Reduction in of Wheel Cut At Diameter Flanses. Wheel Lathe. of Wheel. Inches. Inches. Inches. Vi 20/32 vi 13/16 18/32 % 16/32 I lSi6 14/32 6 I 12/32 n I 1/16 10/32 l^ 8/32 54 I 1/16 6/32 H iVa 4/32: 5/16 2/32 i iH NOTE.—Measurements to be taken through flange 17,^4 in. above the tread. J. E. OSMER. Chicago, III. Views on Mechanical Principles. Editor: A few years ago at a time when thewriter was connected with the AmericanOrder of Stationary Engineers as anhonorary meinber, the discussion oneevening dealt with the question: Inwhich position, top or bottom quarter, willthe driver crank deliver the greatest effectto the rail? It being understood that thelocomotive was to actually move a smalldista
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