Journal of the Franklin Institute, of the State of Pennsylvania, for the Promotion of the Mechanic Arts, 1854, Vol. 27

Bücher

Angebote / Angebote:

Excerpt from Journal of the Franklin Institute, of the State of Pennsylvania, for the Promotion of the Mechanic Arts, 1854, Vol. 27: Devoted to Mechanical and Physical Science, Civil Engineering, the Arts and Manufactures, and the Recording of American and Other Patented Inventions, Whole No. Vol. 57 In bringing before the Institution a plan for a new kind of joint chair for railways, it will be unnecessary to expatiate on the advantages of a firm joint, as regards economy of maintenance of the road and rolling stock, and safety. The object of this paper is to describe a method which has been in use on a crowded part of the London and north-western Railway for above eighteen months, during which time it has stood well, and is now being extensively used on the same line. The plan is to cast a chair or Coupling on the rails at the joints as they lie in the line, by means of chills and a portable cupola. The hot metal ¿owing freely into the chill is allowed to come in close contact with the rails, and in cooling contracts so as to grip the ends of the rails firmly together. The great object to be attained is the converting of the rail into a continuous girder, which shall not de¿ect at the joint more than at any other part, every successive year's experience having forced the attention of engineers and others to this point, to attain which many plans have been tried with more or less success. 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.