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Description: | SILVERTOWN TELEGRAPH WORKS LONDON (embossed on one of the brass retaining rings). 855 (engraved on one of the brass retaining rings). MANU India Rubber, Gutta Percha and Telegraph Works Company circa 1880 Silvertown Telegraph Works, Silvertown, Woolwich Reach, London, (now E 16) England. This is a cable whose construction is based on the early 1866 Atlantic cable but has considerably more armour. It has an extra outer layer of mixed fibre and fine wire rope coated in bitumen, probably to prevent fish? cutting through the insulation as experienced with the Brazilian cable of 1874. The cause of the failures of submarine telegraph cables was effected by a variety of species including boring molluscs such as Teredo mainly in the shallow waters at the shore ends of the cable.. The main armour is comprised of 20 strands of iron wire. The conductor consists of seven strands of copper. The specimen is sectioned to show the construction of the cable and is bound with brass rings to prevent it fraying and as such is probably a presentation piece of the shore end of a cable. | License: | http://www.hmag.gla.ac.uk/spirit/rights/ | Publisher: | Hunterian Museum and Art Gallery, University of Glasgow | Rights holder: | Hunterian Museum and Art Gallery, University of Glasgow | Subjects: | SCIENTIFIC COLLECTION : | Source: | Hunterian Museum | Creator: | Hunterian Museum and Art Gallery, University of Glasgow | Identifier: | http://www.huntsearch.gla.ac.uk/cgi-bin/... | Language: | en-GB | Go to resource |
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