Author: Braman B. Adams
Publisher: Forgotten Books
Category: Technology & Engineering
Excerpt from The Railroad Signal Dictionary: An Illustrated Vocabulary of Terms Which Designate American Railroad Signals Their Parts Attachments and Details of Construction With Descriptions of Methods of Operation and Some Illustrations of British Signals and Practice Since 1898 the use of manual block signaling has been quite rapidly extended throughout the country, and it now covers over miles of road, besides several thousands more on which the protection is less complete. This manual signaling is on lines which carry a considerable traffic, but which yet are not profitable enough to justify the initial expenditure necessary to install automatic signals. But as fast as automatics can be afforded many companies are substituting them for the other system; for, once installed, their opera tion, requiring no signalmen, is much less costly. 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.