Woods Westinghouse E-T Air Brake Instruction Pocket Book. 258 pages, 5 in. by 61⁄2 in., 55 illustrations, bound in cloth. Fublished by the Norman W. Henley Publishing Company, 2 West Forty-fifth street, New York. Any book on air brake equipment must be strictly up to date to be of value, particularly if the book relates to the E-T type, which has undergone very rapid development to meet the ever-increasing demands upon locomotive brake equipment. This book, which has just come off the press, not only contains a full description of the E-T 6, which is the most recent type placed on locomotives, but is a very complete text on the design and operation of the entire E-T equipment and accessory apparatus. The text is admirably illustrated with cuts of the various parts of this apparatus and diagrammatic views showing each zone of air pressure in a distinctive color. This book should be of great assistance to locomotive engineers and others interested in the operation of the E-T brake equipment who are so located that they cannot take advantage of the lectures and demonstration afforded in an air brake instruction car and it should also be of value to traveling engineers, air brake inspectors and instructors not only for the information contained in the volume, but for the reason that these colored diagrams afford a very simple and effective method for instructing others in the workings of this intricate apparatus. Instruction Pocket Book A Complete Work Explaining in Detail the Improved CONTAINS EXAMINATION QUESTIONS AND ANSWERS, COV- A QUESTION CAN BE ASKED OF THE ENGINEMAN By W. W. WOOD, Air Brake Instructor, SCIENCE FILLED WITH COLORED PLATES, SHOWING VARIOUS PRES- SECOND EDITION-REVISED. NEW YORK THE NORMAN W. HENLEY PUBLISHING CO. 2 West 45th Street YRASELI COPYRIGHT, 1920 AND 1909 BY THE NORMAN W. HENLEY PUBLISHING CO. Every Illustration in this book has been specially Printed in U. S. A. Electrotyped and Printed by the 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. 99259 Preface Under the circumstances, and to provide for certain other present-day air-brake requirements, it has been found necessary to produce a locomotive brake with an individuality of its own, but perfectly adapted to every requirement of each branch of railroad service; and as the result of much invention, experiment and redesigning, the improved E-T Locomotive-Brake Equipment has been brought forth by the Westinghouse Air-Brake Company, and is now the one standard type of engine- and tender-brake for each and every locomotive, regardless of the service in which it may be placed. In the E-T equipment the entire apparatus included in the engine- and tender-brake has been reconstructed, and although the principle of the common triple valve is used to govern the graduation of the locomotive braking power in like proportion to the calculated power of the car brakes of the train, the general construction of this new equipment is so different from the old that it is practically impossible for a person otherwise skilled in knowledge of the common quick-action and locomotive brakes, to understand the E-T equipment without helpful instruction. It should be borne in mind, too, that when any person thoroughly understands the E-T brake equipment, he has competent knowledge of the Westinghouse air brake as it is applied to any locomotive in this country, for, while a knowledge of the common automatic air brake is helpful in the study of the E-T equipment, a thorough understanding of the latter embraces all that |