A Trip to Newfoundland; Its Scenery And Fisheries; With An Account of the Laying of the Submarine Telegraph Cable
A Trip to Newfoundland; Its Scenery And Fisheries; With An Account of the Laying of the Submarine Telegraph Cable
Mullaly, John
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The extra nine irJlas were allowed to make up for the inequalities in the bottom of the ocean, and any variation that might be produced in the direct line by the wind or currents. The cable lay in immense coils in the hold of the vessel, and the operation of coiling alone took fourteen days. The machinery was very simple in its construction, and was the same that was used in laying the Mediterranean cable. The cable as it came out of the hold passed over iron rollers, and from these between ver...tical guide rollers, from which it passed again over two large wheels, each eight feet in diameter. As these revolved it was thrown out on a cast iron saddle, over the stern of the vessel. The wheels were sup- plied with four breaks, worked by two long levers and two compressers, which were employed to prevent the cable from surging as it passed round the wheels, as well as to prevent it from running off by its own weight. These completed the whole of the machinery^ and it was found to work most successfully.
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