. The railroad and engineering journal . Fig. 279. break, these rings hold it on in its position, and thus preventan accident. Question 443. .Ire there any standard sizes for the inside diam-eters of tires ? Answer. Yes. To avoid the great inconvenience arisingfrom the diversity in the inside diameters of tires, the AmericanRailway Master Mechanics Association has recommendedstandard dimensions for the inside of tires and the outside ofdriving-wheel centers. These are given in the following table : Stand.\ri) Dimensions tuk Driving-Wheel Centers andTires.

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Keywords: ., bookcentury1800, bookdecade1880, bookidrailroadengi, bookyear1887