. History of the Panama canal; its construction and builders . 1. Lifting a girder with wire rope. 2. Wire rope pulling an unloading plough. (Wire rope supplied by John A. Roeblings Sons Company, Trenton, N. J.). LESCHEN WIRE ROPE AT WORK ON THE CANAL i. Wire rope spans for the lock Rope operating cranes at the lock Lifting material inside the locks. (Wire rope furnished by A. Leschen & Sons Rope Company of St. Louis, Mo.) VARIOUS USES OF WIRE ROPE 349 into rope, and full-size pieces of the fin-ished rope are pulled apart on the greattesting machines at the Roebling works
. History of the Panama canal; its construction and builders . 1. Lifting a girder with wire rope. 2. Wire rope pulling an unloading plough. (Wire rope supplied by John A. Roeblings Sons Company, Trenton, N. J.). LESCHEN WIRE ROPE AT WORK ON THE CANAL i. Wire rope spans for the lock Rope operating cranes at the lock Lifting material inside the locks. (Wire rope furnished by A. Leschen & Sons Rope Company of St. Louis, Mo.) VARIOUS USES OF WIRE ROPE 349 into rope, and full-size pieces of the fin-ished rope are pulled apart on the greattesting machines at the Roebling result was that the strength and resist-ing power of every wire rope shipped fromthis works to the Canal Zone were knownto be sufficient for the work to be done. In addition to the wire ropes used inthe work of excavating, hoisting, and load-ing, the Roebling company furnished manywire hawsers for towing. On the tugboats Mariner, Porto Bello, Bohio, Gatun,M. E. Scully, Empire, Cocoli, La Boca,Miraflores, and Be Lesseps, and on a num-ber of barges, the American EngineeringCompany installed automatic steam tow-ing machines, and Roebling hawsers wereselected by the commission to completethe equipmen
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