Submarine Appliances And Their Uses
Deep Sea Diving, &c., &c.

_______ the smallest part, and 2 2-J inches in length. Each joining shackle weighs 4I cwts. and the end or anchor shackles 7^ cwt. each. At the end of the cable swivel pieces are inserted, each weighing iß^cwts. ________ The end links on the swivel pieces are of 4-J-inch diameter iron, and the swivel alone weighs 6f cwt. f O I ■ Tests were made on three links at v \ I ______ / \J Lloyd’s Proving House, and, under __________________________ \_Jr~ the Admiralty strain of 198.8 tons, each link elongated nearly J inch, Copyright. Photo T. The Statutory breaking stress of 255-7 tons was then applied, the result being a further elongation of the links by % inch. An attempt to test the three links to destruction failed, to break the links, notwith- standing that the full power of the testing machine (350 tons) was applied. There was no sign of fracture or defect of any kind, although the load was nearly 90 per cent, above the Admiralty stress. Copyright. Photo U. Photo of the eminent Civil Engineer, Brunel, with the 2|-inch cable for the “Great Eastern,” manufactured by Messrs. Brown, Lenox & Co., in 1855. 124