MAC DO WALL

Charles (son of Wm. Mac do wall, watchmaker). b. Pontefract 6 April 1790; apprentice to a chemist; repaired a repeater watch without any instruction; a watchmaker at Wake field; invented the helix lever clock 1831; at 21 Church st. Kensington, London 1836; invented the helix lever watch and the helix lever escape; patronised by the duke of Su ex when at Kensington palace, where he attended at the conversaziones to explain the inventions; removed to 41 St. James’ st. Pall Mall 1839, to 8 Victoria road, Pimlico 1840, and to 30 Hyde st. Blooms bury 1848; patented the single pin escapement, for which he received bronze medal at Great Exhibition of 1851; experimented on the three-leg gravity escapement; re-invented the spiral drill. d. 26 Jermyn st. London 27 Oct. 1872. The Horological Journal , Sep. 1873 pp. 5–9, portrait . M’DOWALL, Charles (only son of Robert M’Dowall of Sheffield). b. 1837; ed. Univ. coll. Oxf., scholar 1856–62; B.A. 1859, M.A. 1865, B.D. and D.D. 1882; head master’s a istant Ro all sch.; senior a istant master Malvern coll. 1864–74; head master Cholmeley high sch. High gate, London, Jany. 1874 to death; preb. of St. Paul’s, April 1883 to death. d. Cholmeley school house 29 June 1893.