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Excerpt from A d104book, Locomotive and the Air Brake: Car Lighting, Car Heating, the Electric Headlight, the New York Air Brake The first step in the direction of improvement on the old oil-lamp system was the use of ordinary coal gas, stored at pressure and fed out gradually, but the illuminating power of this gas was impaired by compression. Now, however, oil gas is being widely used instead; it is stored at a high pressure and passes through a pressure regulator on its way to the lamps, thus having its pressure reduced to a proper degree. This gas is, in this country, made from a high-grade petroleum distil late, and in Europe from what is called shale Oil. It has the property of enduring considerable compression without any loss in illuminating power, an advantage not shared by ordinary coal or citv gas. This method of lighting by oil gas is safe, clean, and economical; the light itself is soft, and at the same time brilliant, and, being evenly distributed, renders reading in any part of the car a pleasure. The system almost exclusively used in this country is the Pintsch, and this is the one treated of in the present Section. 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.

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