Excerpt from Technologic Papers of the Bureau of Standards: Some Foreign Specifications for Railway Materials: Rails, Wheels, Axles, Tires A summary of the weights of axles and wheels is given in Table 4. Often the size of the equipment, such as wheels or axles, is prescribed by setting an upper limit to the static stresses that may be developed in any part. For instance, the railroads of France prescribe generally, directly or indirectly, a maximum wheel load of from 16 100 to 16 800 pounds, while the German laws prescribe a maximum static stress of 10 000 pounds per square inch in the journal of freight-car axles and of 7900 pounds per square inch for passenger-car axles. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.