Proceedings of the Lake Superior Mining Institute (Classic Reprint)

Download or read book Proceedings of the Lake Superior Mining Institute (Classic Reprint) written by Lake Superior Mining Institute and published by Forgotten Books. This book was released on 2017-07-07 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Proceedings of the Lake Superior Mining Institute The main drifts through the ore deposits are sixteen feet wide and are timbered for a double track with a clear passage of six feet in width for the locomotive and cars. A cross-cut north and south through jasper unites the two deposits and contains a single track. As a rule, the mills are so located that the cars may be load ed from them while standing on the main tracks. In describing the plant we will begin with the track, which. In the ore deposits, is double, and provided with cross-overs, as shown in the plan. It is constructed of steel rails twenty-six feet long and weighing thirty pounds to the yard, joined with ordinary straps or fish plates. The ties are 4 x 8 inches, and of hemlock, laid two feet from center to center. The switches are the ordinary stub switch, with blind' switch stands, and the gauge of the track is thirty inches. 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.