DENT, EDWARD JOHN

born Aug. 19, 1790, London died March 8, 1853, London English clockmaker noted for his highly accurate clocks and chronometers. Dent learned the clockmaker's trade from Richard Rippon and, during the period 181529, established a reputation as a builder of accurate chronometers. His reputation for precision eventually brought requests from the Admiralty and the East India Company. Dent confirmed his expertise by creating in 1829 a chronometer action that incorporated an improved method of reducing the timing errors caused by fluctuations in temperature. From 1830 until 1840 he was the partner of John Roger Arnold in the manufacture of first-rate clocks and watches. Thereafter, as the proprietor of three clock shops in London, Dent won the esteem of Sir George Airy, the astronomer royal, who recommended him as the maker of a large clock for the tower of the new Royal Exchange. Dent established a workshop in the Savoy to produce this excellent timepiece, which was installed in 1844. In 1852 Dent won the commission to make the great clocknow called Big Benfor the Houses of Parliament at Westminster, but he died before completing the project. Upon the death of Rippon, Dent had married his widow, whose sons Frederick and Richard took Dent's name and succeeded to his business. Frederick Rippon Dent finished Big Ben in 1854.