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Sir Dugald Clerk (* 31. März 1854 in Glasgow; † 12. November 1932 in , Surrey, England) war ein schottischer Erfinder, der 1878 den ersten Zweitaktmotor entwickelte. Der Motor wurde am 11. Februar 1879 unter D.R.P. Nr. 8745 patentiert, 1881 auch in England. Das geschah aus der Notwendigkeit heraus, das bestehende Patent auf den Viertaktmotor zu umgehen, das Nicolaus Otto 1876 erhalten hatte. Er brauchte für ein Arbeitsspiel zwar nur eine Kurbelwellenumdrehung, war aber von heutigen Zweitaktern noch weit entfernt. Sein Motor hatte noch einen zweiten Zylinder zur Aufladung, was 1891 von vereinfacht wurde. Er hatte im Alter von 14 Jahren als Mechaniker begonnen und 5 Jahre später sein Studium der Chemie begonnen am in Glasgow bei Thomas Edward Thorpe und am in Leeds. Ein Lenoir-Gasmotor weckte sein Interesse für Maschinenbau. Ab 1886 lebte er in Birmingham, wo er zu Gasmotoren forschte und mit G. C. Marks eine erfolgreiche Beratungs- und Patent-Agentur gründete. Einer ihrer Kunden war Frederick W. Lanchester, für den er 1890 den Anlasser patentierte. Im Ersten Weltkrieg entwickelte er eine Maschine zur Produktion von Munition, für die er 1917 zum Knight Commander des Order of the British Empire geschlagen wurde. 1922 wurde er zum Fellow der Royal Society of Edinburgh gewählt. (de) Sir Dugald Clerk (sometimes written as Dugald Clark) KBE, LLD FRS (1854, Glasgow – 1932, Ewhurst, Surrey) was a Scottish engineer who designed the world's first successful two-stroke enginein 1878 and patented it in England in 1881. He was a graduate of Anderson's University in Glasgow (now the University of Strathclyde), and Yorkshire College, Leeds (now the University of Leeds). He formed the intellectual property firm with George Croydon Marks, called Marks & Clerk. He was knighted on 24 August 1917. (en) Sir Dugald Clerk, né à Glasgow le 31 mars 1854 et mort à le 12 novembre 1932 , est un ingénieur écossais. Dugald Clerk conçoit le premier moteur à deux temps en 1878 et le brevette en Angleterre en 1881. (fr) Dugald Clerk (Glasgow, 31 marzo 1854 – , 12 novembre 1932) è stato un inventore, ingegnere e progettista britannico, che progettò nel 1878 il primo motore a due tempi funzionante al mondo e lo brevettò in Inghilterra nel 1881. Laureato alla Anderson's University di Glasgow (ora Università di Strathclyde) e allo Yorkshire College (ora Università di Leeds), creò insieme a , la società . Fu nominato il 24 agosto 1917 cavaliere dell'ordine dell'Impero Britannico e in seguito divenne . (it) Dugald Clerk (Glasgow, 31 de março de 1854 — 12 de novembro de 1932) foi um engenheiro britânico que inventou o motor de combustão interna a dois tempos, em 1878. Foi eleito membro da Royal Society em 1908. (pt) |
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Sir Dugald Clerk (sometimes written as Dugald Clark) KBE, LLD FRS (1854, Glasgow – 1932, Ewhurst, Surrey) was a Scottish engineer who designed the world's first successful two-stroke enginein 1878 and patented it in England in 1881. He was a graduate of Anderson's University in Glasgow (now the University of Strathclyde), and Yorkshire College, Leeds (now the University of Leeds). He formed the intellectual property firm with George Croydon Marks, called Marks & Clerk. He was knighted on 24 August 1917. (en) Sir Dugald Clerk, né à Glasgow le 31 mars 1854 et mort à le 12 novembre 1932 , est un ingénieur écossais. Dugald Clerk conçoit le premier moteur à deux temps en 1878 et le brevette en Angleterre en 1881. (fr) Dugald Clerk (Glasgow, 31 marzo 1854 – , 12 novembre 1932) è stato un inventore, ingegnere e progettista britannico, che progettò nel 1878 il primo motore a due tempi funzionante al mondo e lo brevettò in Inghilterra nel 1881. Laureato alla Anderson's University di Glasgow (ora Università di Strathclyde) e allo Yorkshire College (ora Università di Leeds), creò insieme a , la società . Fu nominato il 24 agosto 1917 cavaliere dell'ordine dell'Impero Britannico e in seguito divenne . (it) Dugald Clerk (Glasgow, 31 de março de 1854 — 12 de novembro de 1932) foi um engenheiro britânico que inventou o motor de combustão interna a dois tempos, em 1878. Foi eleito membro da Royal Society em 1908. (pt) Sir Dugald Clerk (* 31. März 1854 in Glasgow; † 12. November 1932 in , Surrey, England) war ein schottischer Erfinder, der 1878 den ersten Zweitaktmotor entwickelte. Der Motor wurde am 11. Februar 1879 unter D.R.P. Nr. 8745 patentiert, 1881 auch in England. Das geschah aus der Notwendigkeit heraus, das bestehende Patent auf den Viertaktmotor zu umgehen, das Nicolaus Otto 1876 erhalten hatte. Er brauchte für ein Arbeitsspiel zwar nur eine Kurbelwellenumdrehung, war aber von heutigen Zweitaktern noch weit entfernt. (de) |
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