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Excerpt from Cyclopedia of Engineering: A General Reference Work on Steam Boilers and Pumps; Steam, Stationary, Locomotive, and Marine Engines; Steam Turbines; Gas and Oil Engines; Gas-Producers; Compressed Air; Refrigeration; Elevators; Heating and Ventilation HE prime mover whether it be a massive, majestic Corliss, a rapidly rotating steam turbine, or an iron greyhound drawing the Limited, is a work of mechanical art which commands the admiration of everyone. And yet, the complicated mechanisms are so efficiently designed and everything works so noiselessly, that we lose sight of the wonderful theoretical and mechanical development which was necessary to bring these machines to their present state of perfection. Notwithstanding the genius of Watt, which was so great that his basic conception of the steam engine and many of his inventions in connection with it exist today practically as. He gave them to the world over a hundred years ago, yet the mechanics of his time could not build engine cylinders nearer true than three-eighths of an inch the error in the modern engine cylinders must not be greater than two-thousandths of an inch. 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.