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In stricter senses, the term wire rope refers to a diameter larger than 9.5 mm (3 ⁄ 8 in), with smaller gauges designated cable or cords. [1] Initially wrought iron wires were used, but today steel is the main material used for wire ropes. Historically, wire rope evolved from wrought iron chains, which had a record of mechanical failure.
John Augustus Roebling (born Johann August Röbling; June 12, 1806 – July 22, 1869) was a German-born American civil engineer. [1] He designed and built wire rope suspension bridges, in particular the Brooklyn Bridge, which has been designated as a National Historic Landmark and a National Historic Civil Engineering Landmark.
He invented a twisted steel cable, later known as an "Albert Rope", which was first used in the Clausthal Caroline mine in 1834 and was the forerunner of the modern wire rope. [ 2 ] He died in Clausthal.
Andrew Smith Hallidie (March 16, 1836 – April 24, 1900) was an American entrepreneur who was the promoter of the Clay Street Hill Railroad in San Francisco. This was the world's first practical cable car system, and Hallidie is often therefore regarded as the inventor of the cable car and father of the present day San Francisco cable car system, although both claims are open to dispute.
Ropes suspended at operating level, permanently or temporarily. Ropes held on the water surface by buoys. Cables suspended underwater, permanently or temporarily. Ground cables normally resting on the bottom, pulled to the surface near the ferry. Possible forces and catenaries for a small cable ferry with chain or wire rope compared.
R. S. Newall and Company established a factory in Gateshead, England, and commenced making wire ropes for "Mining, Railway, Ships' Rigging, and other purposes". From this point forward, Newall was instrumental in developing substantial improvements to submarine telegraph cables, devising a method involving the use of gutta percha surrounded by ...
These rope bridges must be renewed periodically owing to the limited lifetime of the materials, and rope components are made by families as contributions to a community endeavor. Simple suspension bridges, for use by pedestrians and livestock, are still constructed, based on the ancient Inca rope bridge but using wire rope and sometimes steel ...
Rope is constructed in a linear fashion, and must be spliced together before carriers are affixed. Splicing involves unwinding long sections of either end of the rope, and then winding each strand from opposing ends around the core. Sections of rope must be removed, as the strands overlap during the splicing process. [6]
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