The Atlantic Pacific Ship Railway Across the Isthmus of Tehuantepec in Mexico
The Atlantic Pacific Ship Railway Across the Isthmus of Tehuantepec in Mexico
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In our eReader you can find the full English version of the book. Read The Atlantic Pacific Ship Railway Across the Isthmus of Tehuantepec in Mexico Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Atlantic Pacific Ship Railway Across the Isthmus of Tehuantepec in Mexico
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It is raised by means of powerful pumps, which withdraw the water from the pon- toon and discharge it into the surrounding dock or basin. These pumps are to be sufficiently powerful to raise the pontoon, with a vessel upon it, in from 15 to 20 minutes. It is guided in its vertical movement by large anchor-rods, which are secured in the foundations of the dock. These rods pass freely through the pontoon, but are separated from its water-spaces. The heads of these guiding-rods prevent the pontoon... from rising above a certain level, and also re- sist its buoyancy when the vessel has been run off of the pontoon on to the railway. In order to lift a vessel without injury to itself and to place it upon a cradle or carriage for transportation without any possible injury to this carriage, it is necessary to distribute or equal- ize the weight of the vessel so as to bring no more weight upon one part of the carriage than upon another. A vessel has not the same weight per unit of its length throughout its whole extent, but, being a girder capable of resisting the flexures and bending moments which it must necessarily meet in its voyage on the ocean, it is capable of resisting, without injury to its structural integrity, this necessary equalization.
What to read after The Atlantic Pacific Ship Railway Across the Isthmus of Tehuantepec in Mexico?
You can find similar books in the "Read Also" column, or choose other free books by E L Elmer Lawrence Corthell to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
It is raised by means of powerful pumps, which withdraw the water from the pon- toon and discharge it into the surrounding dock or basin. These pumps are to be sufficiently powerful to raise the pontoon, with a vessel upon it, in from 15 to 20 minutes. It is guided in its vertical movement by large anchor-rods, which are secured in the foundations of the dock. These rods pass freely through the pontoon, but are separated from its water-spaces. The heads of these guiding-rods prevent the pontoon... from rising above a certain level, and also re- sist its buoyancy when the vessel has been run off of the pontoon on to the railway. In order to lift a vessel without injury to itself and to place it upon a cradle or carriage for transportation without any possible injury to this carriage, it is necessary to distribute or equal- ize the weight of the vessel so as to bring no more weight upon one part of the carriage than upon another. A vessel has not the same weight per unit of its length throughout its whole extent, but, being a girder capable of resisting the flexures and bending moments which it must necessarily meet in its voyage on the ocean, it is capable of resisting, without injury to its structural integrity, this necessary equalization.
What to read after The Atlantic Pacific Ship Railway Across the Isthmus of Tehuantepec in Mexico?
You can find similar books in the "Read Also" column, or choose other free books by E L Elmer Lawrence Corthell to read onlineMoreLess
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