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On the Means of Comparing the Respective Advantages of Different Lines of Railway and on the Use of Locomotive Engines Volume 80

On the Means of Comparing the Respective Advantages of Different Lines of Railway and on the Use of Locomotive Engines Volume 80


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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1836 edition. Excerpt: ... the transit in these two cases, we shall consider therefore in the case of the train of 37 tns that the net weight is proportional to 27--12, or 25, and in the case of the 50 tons that it is 50--12, or 38. Besides, in the first case the mean velocity was 9 metres, or 9.84 yards per second, and in the second case that it was 6.64 metres, or 7-26 yards. The expense of conveyance is therefore greater in the first case in the proportion of . l4, or 1.122 to 1. 25 9 When Rail-ways of a certain extent are under consideration, it can scarcely be hoped to reduce the greatest slope to less than a 3 thousandth, or 1 in 333; and consequently, if we wish that the same engine should draw the same weight over the whole line, we cannot make an engine weighing 8 tons draw a train, the total weight of which exceeds 50 tons. The moving of such a train with a velocity of 6m 64, found above, or nearly 7 leagues an hour, is therefore the most economical arrangement that can be adopted. Now it is shown, by the preceding calculation, that in carrying the velocity to 9 metres per second, or a little more than 8 leagues per hour, which requires the weight of the train to be reduced to 37 tons, is the expense of carriage increased, upon the line of Rail-way which has been taken for the example, by about 12 per cent. But then this advantage is acquired, which in certain cases may be very important, that the train will overcome without difficulty, not only the slopes of 1 in 333, but even slopes exceeding 1 in 200. All these circumstances lead to the establishment of this fundamental principle, that the essential character of Rail-ways is to afford the means of a very rapid conveyance. In order to render it convenient and advantageous to affect the transit at a...


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Product Details
  • ISBN-13: 9781151724243
  • Publisher: Rarebooksclub.com
  • Publisher Imprint: Rarebooksclub.com
  • Height: 246 mm
  • No of Pages: 24
  • Spine Width: 1 mm
  • Width: 189 mm
  • ISBN-10: 1151724246
  • Publisher Date: 01 Oct 2012
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Weight: 64 gr


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On the Means of Comparing the Respective Advantages of Different Lines of Railway and on the Use of Locomotive Engines Volume 80
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