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Author: United States Navy Dept Bureau of Navi Publisher: Palala Press ISBN: 9781358640773 Category : Languages : en Pages :
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: United States Navy Dept Bureau of Navi Publisher: Palala Press ISBN: 9781358640773 Category : Languages : en Pages :
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: Bureau of Navigation Navy Department Publisher: Forgotten Books ISBN: 9781527961180 Category : Technology & Engineering Languages : en Pages : 246
Book Description
Excerpt from Papers and Discussions on Engines, Boilers and Torpedo Boats: Reprinted From the "Transactions of the Institutions of Naval Architects," Volumes 1882 and 1883 Economy of coal in our steamships is a point of so great importance, that any step in this direction is worth chronicling. Steamships are now making long voyages, and at high rates of speed, which, till within a few years ago, were made by sailing ships. To accomplish these profitably, economy of coal is all-important. Every ton of coal saved means a ton of freight earned, and in many trades every stoppage to coal is a loss of' time, besides the exorbitant rates for coal charged at these ports. Coal-saving, too, is equally important for high-speed steamers, as, unless their voyage is only one of the shortest duration, coal becomes the greatest weight the ship is burdened with. The obvious direction in which to look for saving is increase of press ure. Unfortunately, as we get higher in pressure, we do not by any means gain in efficiency in anything like a proportionate degree, and the time must come, may indeed not be far away, when further increase of pressure will not pay. This time has not come yet. 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.
Author: Bureau of Navigation Navy Department Publisher: Forgotten Books ISBN: 9781330109694 Category : Technology & Engineering Languages : en Pages : 247
Book Description
Excerpt from Papers and Discussions on Engines, Boilers and Torpedo Boats: Reprinted From the "Transactions of the Institutions of Naval Architects," Volumes 1882 and 1883 Economy of coal in our steamships is a point of so great importance, that any step in this direction is worth chronicling. Steamships are now making long voyages, and at high rates of speed, which, till within a few years ago, were made by sailing ships. To accomplish these profitably, economy of coal is all-important. Every ton of coal saved means a ton of freight earned, and in many trades every stoppage to coal is a loss of time, besides the exorbitant rates for coal charged at these ports. Coal-saving, too, is equally important for high-speed steamers, as, unless their voyage is only one of the shortest duration, coal becomes the greatest weight the ship is burdened with. The obvious direction in which to look for saving is increase of pressure. Unfortunately, as we get higher in pressure, we do not by any means gain in efficiency in anything like a proportionate degree, and the time must come, may indeed not be far away, when further increase of pressure will not pay. This time has not come yet. When James Watt utilized the lower pressures, from 15 pounds downwards, he unquestionably had at his disposal the most prolific portion. Pressure gradually rose - I am speaking now more particularly of the marine engine - to 30 pounds, and sometimes 40 pounds, but, used as the steam was, in one cylinder, exhausting direct to the condenser, little additional economy was gained by this increase of pressure. The variation in temperature, over 300 degrees in the cylinder, was too great; steam was condensed at the commencement of the stroke, when it had its full work before it, and re-evaporated towards the end, when it had little left to do but go straight to the condenser. Steam-jackets ameliorated this action, but besides the difficulty of getting them attended to at sea, they effected their purpose imperfectly and at a very considerable sacrifice of steam. 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.
Author: United States. Department of the Interior. Division of Documents Publisher: ISBN: Category : Government publications Languages : en Pages : 800
Author: United States. Superintendent of Documents Publisher: ISBN: Category : Government publications Languages : en Pages : 802
Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Author: United States. Department of the Interior. Division of Documents Publisher: ISBN: Category : Government publications Languages : en Pages : 802
Author: United States Navy Dept Bureau of Navi
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Author: United States Navy Dept Bureau of Navi
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Author: Bureau of Navigation Navy Department
Author: Bureau of Navigation Navy Department
Author: John Griffith Ames
Author: United States. Department of the Interior. Division of Documents
Author: United States. Superintendent of Documents
Author: United States. Department of the Interior. Division of Documents
Author: Institution of Civil Engineers (Great Britain). Library