New York [etc.] Simmons-Boardman Pub. Co. [etc.] · leaf 178
eel tired wheels,and hence the forces that may be applied will be too small.Here we have :10,0«0 -h S = 3.7.50 lbs. on a wheel.At 3 miles per hour, we have: 3,750x100 ;j.750 the maximum force. At to miles per hour, we have: 3,750x107 4.000 lbs. at first. 3,750x110 4,3t0 lbs. after 3 sec. At 15… … aing say .iu miles per hourthe initial pressure may be about twice the load on thwheel, but if in 5 seconds the velocity is only reduced to ;3;miles per hour the allowable pressure may be 3o times thiload on the wheel. Finally when the train stops the allowable pressure can only be 0-96 of the load…
Railroads · Railroad cars
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