Traffic Signal

AT A GLANCE: Police Officer William L. Potts of Detroit, Michigan, stubborn to do something about the problem caused by the ever change magnitude number of automobiles on the ways. What he had in mind was reckon out a way to adapt railroad signals for street use. Potts used ablaze(p), amber, and green railroad lights and about thirty-seven dollars expenditure of wire and electrical controls to make the worlds prototypic 4-way three color concern light. It was installed in 1920 on the watershed of Woodward and Michigan Avenues in Detroit. Within a year, Detroit had installed a be of fifteen of the new automatic lights. THE STORY RELATED INFO BOOKS WEB SITES DID YOU dwell? Invention:Traffic Light Function:noun / trsffic signal / vocation light Definition:A road signal for directing vehicular duty by means of colored lights, typically red for stop, green for go, and yellow for proceed with caution. Patent:As a government emplyee Potts could not patent his invention. Inventor:William L. Potts Criteria:First practical. new-made prototype. Birth:Unknown Death:Unknown Nationality:Unknown Milestones: 1918 U.S.Patent # 1,251,666 issued January 1, to J.B. Hoge of Cleveland, OH 1919 U.S.Patent # 1,307,544 issued June 24, to Oscar A.

Erdmann of Detroit, MI 1920 William Potts invents and installs a three color, four direction taffic light in Detroit, MI 1923 U.S.Patent # 1,475,024 issued November 20, 1923 to Garrett Morgan for duty signal ARYs: traffic light, traffic signal, stop light, William Potts, Garrett Morgan, J Hoge, Oscar Erdmann, history, invention, stroy, facts, biography, inventor. Story: veritable(a) during the horse and buggy days, traffic in big cities was oftentimes heavy. Police officers had to be stationed full time directing traffic at busy intersections. The worlds first traffic light came into being before the automobile was in use, and traffic consisted only of pedestrians, buggies, and wagons. Installed at an intersection in... If you want to get a full essay, order it on our website: Ordercustompaper.com

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