. The car wheel; giving the results of a series of investigations . ElevatedRailway Coach . . 21773 Flangeless 4,262 30 29%6 70,650 •5 me 10,811 21774 4,262 30 29^ 70,650 .1061 ¥a 10,811 equivalent mileage. The cost of renewals of thecast iron wheels must be added to the first costand credit allowed for the scrap value of the oldwheels removed. There are other items of cost, however, which,although difficult to accurately estimate are, never-theless, important. It must be remembered thateach car has an earning capacity which is lost when-ever the car is in the shop for renewals or repairs,and
. The car wheel; giving the results of a series of investigations . ElevatedRailway Coach . . 21773 Flangeless 4,262 30 29%6 70,650 •5 me 10,811 21774 4,262 30 29^ 70,650 .1061 ¥a 10,811 equivalent mileage. The cost of renewals of thecast iron wheels must be added to the first costand credit allowed for the scrap value of the oldwheels removed. There are other items of cost, however, which,although difficult to accurately estimate are, never-theless, important. It must be remembered thateach car has an earning capacity which is lost when-ever the car is in the shop for renewals or repairs,and this should be credited to the steel wheel whichinvolves no such loss. Again, if the number of shop-pings for wheel defects can be materially reducedthe same volume of traffic can be handled with fewercars, thus saving investment in rolling stock and,what is almost as important in large cities, saving inexpensive storage space. These advantages, tangibleand intangible, have been so thoroughly demonstratedto street railway officers by the experience of a few. 34-IN. STREET-CAR WHEEL. roads which early began to use solid steel wheels,that there is a large and growing demand forthem in every class of electric service. For inter-urban roads especially, where the speeds arefrequently as high as those obtained on steamrailroads, solid steel wheels have been generallyadopted for reasons of safety. The solid steel 136
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Keywords: ., bookcentury1900, bookdecade1900, bookidc, booksubjectrailroadcars
