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Author: sir Joseph Whitworth (1st bart.)
Publisher:
ISBN:
Category : New York Exhibition of the Industry of All Nations
Languages : en
Pages : 82
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Author: sir Joseph Whitworth (1st bart.)
Publisher:
ISBN:
Category : New York Exhibition of the Industry of All Nations
Languages : en
Pages : 82
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Author: Charles Lyell
Publisher:
ISBN:
Category :
Languages : en
Pages : 103
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Author: John Wilson
Publisher:
ISBN:
Category : New York Exhibition of the Industry of All Nations
Languages : en
Pages : 154
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Author: Joseph Whitworth
Publisher: Rarebooksclub.com
ISBN: 9781230020013
Category :
Languages : en
Pages : 28
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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. 1854 edition. Excerpt: ... at once, and be satisfied in the first instance with that quality of construction which present circumstances admit of, rather than to postpone the execution of work so immediately beneficial to the country; to the future is left further progress and improvements. A single line of rails nailed down to transverse logs, and a train at rare intervals, are deemed to be sufficient as a commencement, and as traffic increases, additional improvements can be made-. 65. Railway Crossings.--Bridges are seldom thought necessary to carry the common highways across the railroads where they intersect, gates are even in many cases dispensed with, and a notice of " Look out for the locomotive when the bell rings" is considered a sufficient warning, and wayfarers are left to take care of themselves. Sharp curves and steep inclines are frequently submitted to for the sake of economy. 66. Railroad Inclines.--The railroad that connects the eastern and western parts of Pennsylvania, bringing the towns on Lake Erie, and the great western rivers into direct communication with Philadelphia and the Atlantic, consists at present of a single line of rails carried over the lofty ridges of the Alleghany Mountains by a series of inclined planes. These are five in number, and the summit of the highest is 2,600 feet above the level of the sea. The trains are dragged up each incline by a rope attached to a drum worked by a stationary engine. They are drawn across the plateaux which intervene between the inclines, in some cases by horses, in others by small locomotives. A new road is, however, being constructed which will cross the mountains by one long winding incline. The ascent will be so gradual in its circuitous course, that a locomotive will be able to...
Author: Great Britain. Parliament. House of Commons
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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![New York Industrial Exhibition. Special Report [on Machinery of the United States.] Presented to Parliament PDF](https://books.google.com/books/content/images/frontcover/7-MXuAEACAAJ?fife=w80-h100)
Author: Joseph Whitworth
Publisher:
ISBN:
Category : Industries
Languages : en
Pages : 74
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 116
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Author: Great Britain. Parliament. House of Commons
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Great Britain. Parliament. House of Commons
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Joseph Whitworth
Publisher:
ISBN:
Category : New York Exhibition of the Industry of All Nations
Languages : en
Pages : 74
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