Excerpt from Cambria Steel: A Handbook of Information Relating to Structural Steel Manufactured by the Cambria Steel Co.; Containing Useful Tables, Rules, Data, and Formulae for the Use of Engineers, Architects, Builders and Mechanics Our product is exclusively steel, made by the Bessemer or Open Hearth process, as required, and of all qualities from the softest rivet stock to high carbon special spring material. Our Beams and Channels are made to conform to the American Standards, adopted ''january, 1896, in which the flanges have a uniform slope of one to six, and the dimensions, proportions and weights are determined by a regular schedule, as shown on the diagrams on pages 18 and 19. The standard proportions of beams and channels are further shown on page 20. 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.