The Science of Railways
The Science of Railways
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In our eReader you can find the full English version of the book. Read The Science of Railways 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 Science of Railways
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To quickly assess the difficulty of the text, read a short excerpt:
Draw bridges should have signs placed 600 feet each side.
Shimming. — "When the ballast is frozen in the winter it cannot be tamped, and if the track is heaved by frost the surface is made uneven both transversely and longitudinally. This must be tested by a level for the former and by sight- ing or the use of a long straight-edge for the lat- ter. In such cases wooden plates or shims must be placed between the rail and the tie to bring the rail up to proper surface. The upper face of the tie s...hould not be adzed to lower the rail, unless this is absolutely necessary, but the shims should be placed on the lower ties. Shimming is MAINTENANCE OF WAT. 391 also required with soft ballast that is so soft after heavy rains that tamping is impracticable, the ballast and roadbed being so saturated that no other method of surfacing is effective. In some very bad cases, or in accidents, blocking must be used under the ties, but this should be avoided when possible, and the foreman must see that this blocking is not forgotten and left in place, but that it is taken out when the shims are re- moved or when the ballast has dried out suffi- ciently to give the track a proper bearing.
What to read after The Science of Railways?
You can find similar books in the "Read Also" column, or choose other free books by Marshall Monroe Kirkman to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Draw bridges should have signs placed 600 feet each side.
Shimming. — "When the ballast is frozen in the winter it cannot be tamped, and if the track is heaved by frost the surface is made uneven both transversely and longitudinally. This must be tested by a level for the former and by sight- ing or the use of a long straight-edge for the lat- ter. In such cases wooden plates or shims must be placed between the rail and the tie to bring the rail up to proper surface. The upper face of the tie s...hould not be adzed to lower the rail, unless this is absolutely necessary, but the shims should be placed on the lower ties. Shimming is MAINTENANCE OF WAT. 391 also required with soft ballast that is so soft after heavy rains that tamping is impracticable, the ballast and roadbed being so saturated that no other method of surfacing is effective. In some very bad cases, or in accidents, blocking must be used under the ties, but this should be avoided when possible, and the foreman must see that this blocking is not forgotten and left in place, but that it is taken out when the shims are re- moved or when the ballast has dried out suffi- ciently to give the track a proper bearing.
What to read after The Science of Railways?
You can find similar books in the "Read Also" column, or choose other free books by Marshall Monroe Kirkman to read onlineMoreLess
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