The Westinghouse E-T Air Brake A Complete Work Explaining in Detail The Improved CONTAINS EXAMINATION QUESTIONS AND ANSWERS, COV- A QUESTION CAN BE ASKED OF THE ENGINEMAN UP FOR PROMOTION ON EITHER THE NO. 5 illian by W. W WOOD, Air Brake Instructor Author of "The Walschaert Locomotive Valve Gear," SCIENCE FILLED WITH COLORED PLATES, SHOWING VARIOUS PRES- NEW YORK THE NORMAN W. HENLEY PUBLISHING CO. 1911 COPYRIGHT, 1909, BY THE NORMAN W. HENLEY PUBLISHING CO. Every Illustration in this book has been specially Electrotyped and Printed by the 7-25-41 PREFACE PREVIOUS to the issuance of this volume there has been a general similarity in all air-brake instruction. books, and the E-T Air-Brake Pocket-Book is the first departure to a wholly original field of air-brake instruction. Since its inception, and until quite recently, there has been practically but one style of air brake for all classes and branches of railroad service, both passenger and freight, and its application to the locomotive has been heretofore the simplest modification of the plain, automatic principle. With the great increase in weight and motive power of the locomotives in general service at the present day, the importance of their braking power has increased enormously, and it is common to hear a locomotive engineer declare that he would rather have one-half of the car brakes of a long freight train out of operation than to have to cut his locomotive brake out of action. The different classes of train service now require different methods of brake operation. The running time of passenger trains has been increased, also, at such a rate that the comparatively modern evolution of the quick-action brake for HighSpeed Service has been short-lived, and the demand heeded for a further increase in the stopping power of the brakes of the cars and the locomotives in general passenger service. -11 |