Engineering Wonders of the World
Volume III

Forfatter: Archibald Williams

År: 1945

Serie: Engineering Wonders of the World

Forlag: Thomas Nelson and Sons

Sted: London, Edinburgh, Dublin and New York

Sider: 407

UDK: 600 eng- gl

With 424 Illustrations, Maps, and Diagrams

Søgning i bogen

Den bedste måde at søge i bogen er ved at downloade PDF'en og søge i den.

Derved får du fremhævet ordene visuelt direkte på billedet af siden.

Download PDF

Digitaliseret bog

Bogens tekst er maskinlæst, så der kan være en del fejl og mangler.

Side af 434 Forrige Næste
THE LAYING OF SUBMARINE CABLES. 365 The Faraday is a ship of very similar dimensions. This vessel is of interest in that, penny steamboat-like, she has bows (in addition to rudders) aft as well as forward, the idea being to facilitate cable operations. Amongst smaller represen- tative vessels we have H.M.T.S. Iris, the guardian of the All - British Pacific Cable, with a gross registered tonnage a little over a quarter that of the Colonia. But though one of the smallest, the most interesting telegraph ship now is the Telconia, just recently built for the Telegraph Construc- tion Company. She, in fact, forms the first cable-repairing vessel so. designed that every- thing is ready to hand in its proper place, all the gear re- quired for cable operations being forward, and the sailors’ quarters relegated to the stern.* Fig. 14 presents a general idea of the disposal of the line, as well as the machinery for handling it, on a vessel intended for telegraph work. This view happens to depict the Great Eastern with her historic cable cargo ; but the same general plan is equally applicable to modern custom. The line having been made at the factory, it is gradually stowed on Shipment of |jOarj ßie ship, or ships, about Cable. . to lay it on the route selected. The cable is drawn out from the factory tanks * A full description of this craft appeared in “ The Elec- trician ’ of July 16, 1909. Fig. 13.—TELEGRAPH SHIP “ SILVERTOWN.” Cable and Machinery aboard Tele- graph Ship. over tackle leading to the laying vessel,* into corresponding watertight iron tanks on board—of which there may be three or four for different types and sections of cable, apportioned in suitable positions ready for laying. Fig. 15 illustrates one of these tanks, with the cable partially coiled therein—indeed, very closely packed in horizontal flakes, each carefully whitewashed to prevent sticking. Obviously no form of cable could be coiled to the very centre of the tank : the space is therefore usually filled up by a system of * As illustrated in the article on “ Early Atlantic Cables,” vol. ii, p. 289.