Excerpt from The Designing of Draw-Spans, Vol. 1 of 2 The author has desired to collect in this volume all the material necessary for the complete designing of the common types of draw-spans, and to arrange it in such form as to be of the greatest service in practical use. Several special types, such as the rolling-lift and the vertical-lift spans in use at: Chicago and elsewhere, and the folding draw as used in Boston, are considered and their special features illustrated. The points which have received the most ...
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Excerpt from The Designing of Draw-Spans, Vol. 1 of 2 The author has desired to collect in this volume all the material necessary for the complete designing of the common types of draw-spans, and to arrange it in such form as to be of the greatest service in practical use. Several special types, such as the rolling-lift and the vertical-lift spans in use at: Chicago and elsewhere, and the folding draw as used in Boston, are considered and their special features illustrated. The points which have received the most attention are those which the author has failed to find very fully discussed in works on draw-spans, and which are, many of them, the things which cause the young engineer or the one not familiar with draw-spans the most trouble when the practical design of a draw-span is undertaken. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... 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.
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