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All Sturmey-Archer gear hubs use epicyclic (planetary) geartrains of varying complexity. The AW is the simplest, using one set of planetary gears with four planets. The AM uses three compound planets with differently sized cogs machined from a common shaft to engage the gear ring and sun gear separately, while the close-ratio three-speeds, and hubs with four or more speeds, use multiple ...
Henry Sturmey. John James Henry Sturmey (1857–1930), known as Henry Sturmey, is best remembered as the inventor with James Archer of the Sturmey-Archer three-speed hub for bicycles, but he was a technical editor and journalist heavily involved as a pioneer of the cycling and automotive industries. Born at Norton-sub-Hamdon, Somerset, on 28 ...
Fort Hayes was a military post in Columbus, Ohio, United States.Created by an act of the United States Congress on July 11, 1862, the site was also known as the Columbus Arsenal until 1922, when the site was renamed after former Ohio Governor and later 19th U.S. President Rutherford B. Hayes. [2]
Sheldon Brown (July 14, 1944 – February 4, 2008) was an American bicycle mechanic, technical expert and author. [3][4][5][6] He contributed to print and online sources related to bicycling and bicycle mechanics, in particular the web site Sheldon Brown's Bicycle Technical Info. His knowledge of bicycles was described as "encyclopaedic" by The ...
Columbus Police Website. The Columbus Division of Police (CPD) is the primary law enforcement agency for the city of Columbus, Ohio, in the United States. It is the largest police department in Ohio, and among the twenty-five largest in the United States. [2][3] It is composed of twenty precincts and numerous other investigative and support units.
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US$ 6.2 billion [1] Number of employees. 3,200. Website. www.battelle.org. Headquarters in Columbus. Battelle Memorial Institute (or simply Battelle) is a private nonprofit applied science and technology development company headquartered in Columbus, Ohio. The institute opened in 1929 but traces its origins to the 1923 will of Ohio ...
Columbus Union Station was an intercity train station in Downtown Columbus, Ohio, near The Short North neighborhood. The station and its predecessors served railroad passengers in Columbus from 1851 until April 28, 1977. The first station building was the first union station in the world, built in 1851. Its replacement was built from 1873 to ...