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Roebling 80-ton Wire Rope Machine The only remaining Roebling machine, largest wire-rope closing machine in 1893. 1893 Trenton: New Jersey United States ASME brochure: 140: 1989 Propulsion Wind Tunnel Facility Wind Tunnel The world's first large-scale testing facility for jet and rocket engines in simulated high-speed flight conditions. 1955
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.
In September 1865 the first two wire ropes were laid. They were unwound from a spool on a barge, allowed to sink to the bottom of the river, then raised in unison from the riverbed. Wooden crossbeams were laid at regular intervals from the wire ropes, and a simple footbridge was constructed for the benefit of the workers.
171–191 South High Street is a pair of historic buildings in Downtown Columbus, Ohio.The commercial structures have seen a wide variety of retail and service uses through the 20th century, including shoe stores, groceries, opticians, hatters, jewelers, a liquor store, and a car dealership.
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