Railway appliances; a description of details of railway construction subsequent to the completion of the earthworks and structures, including a short notice of railway rolling stock
Railway appliances; a description of details of railway construction subsequent to the completion of the earthworks and structures, including a short notice of railway rolling stock
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1876 Excerpt: ...but public opinion was then not sufficiently educated in the advantages of the electric telegraph; and though it is believed that the experiment was eminently satisfactory as a first effort, the system was objected to on the score of expense, and the whole subject of electric signalling as a system for the ordinary working of a railway slumbered for some years. Meanwhile the amount of railway traffic was increasing, and with the increase came some terrible collisions in tunnels and other dangerous places, by which it was made evident t
List Price: $ 19.99
Price: $ 19.99
wolfe appliances
Railway appliances; A description of details of railway construction including a short notice of railway rolling stock
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1881 edition. Excerpt: ...will notify to B that the train has left; B will acknowledge the signal and will at the same time give some sort of signal in the signal box at A, which will notify to A that no other train must be sent until further orders. This last operation is called 'blocking the line.' As soon as the train has arrived at B, the signalman there will notify A of its arrival, and will 'take off' the block signal and give 'line clear.' Precisely the same series of signals passes between every signalman from A to E, excepting only that at the
List Price: $ 19.99
Price: $ 19.99
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