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Excerpt from Specifications for Triple-Expansion Twin-Screw Propelling Engines: With Boilers Auxiliary Machinery The condensers will be made of composition and sheet brass. There will be one condenser for each propelling engine. Each main condenser will have a cooling surface of about square feet measured on the outside of the tubes, the water passmg through the tubes. For each propelling engine there will be two single-acting vertical air-pumps worked by a two-cylinder vertical in verted simple engine. The main circulating-pumps will be of the centrifugal type, one for each condenser, worked independently. The propellers will be right and left, of manganese-bronze, or approved equivalent metal. 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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