Étienne d'Arnal

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Étienne d'Arnal , also Scipion d'Arnal or Abbé d'Arnal (born April 11, 1733 in Valleraugue , Gard department , France ; † February 23, 1801 in Nîmes , Gard department, France) was a French clergyman, engineer and inventor .

family

Étienne d'Arnal was the son of Sieur Maurice d'Arnal de Saint-Maurice and Marguerite Finiel. He had two brothers Johann d'Arnal and Maurice d'Arnal .

Life

Étienne d'Arnal was ordained a priest in 1757 and canon of Alès in 1761 . Around 1780 he gave up his job and devoted himself to his research. He made sure that steam engines were also used in France. One of his inventions made it possible to convert the up and down movement of steam engines into a circular movement and thus make it usable for other areas of application. Étienne d'Arnal invented a steam-powered mill that was used at Nimes. In 1781 he also suggested propelling ships on rivers with steam engines. For this purpose, ropes were to be attached to the bank that would be wound up by steam engines that were to be installed on ships and thus move against the current. On November 10, 1788, he received the sole right to use steamships in France. Thomas Jefferson , however, did not classify Étienne d'Arnal as a real competitor to James Rumsey in the race for the first functioning steamship, as he already had difficulties in keeping his mills running.

Works

  • Prospectus de la navigation générale des rivières du royaume par le moyen de la machine à feu, inventé par M. l'abbé d'Arnal, chanoine de la cathédrale d'Alais. (1781)
  • Mémoire sur les Moulins à Feu établis à Nimes (1783)

Web links

Individual evidence

  1. ↑ Louis-Charles de Waroquier de Méricourt de La Mothe de Combles, comte de Waroquier: Tableau genealogique, historique, chronologique, heraldique et geographique de la Noblesse , 5th part, p. 29 ( online )
  2. ↑ Göttingische displays of learned things , 1st volume, Göttingen 1787, p. 582 ( online )
  3. ^ Jean-Marc Combe, Bernard Escudié, Jacques Payen: Vapeurs sur le Rhône , 1991, ISBN 2729704000 , p. 21
  4. ↑ Thomas Jefferson: Memoir, correspondence, and miscellanies from the papers of Thomas Jefferson , Volume 1, Charlottesville 1829, p. 416 ( online )
personal data
SURNAME Arnal, Etienne d '
ALTERNATIVE NAMES Arnal, Abbé d '; Arnal, Scipion d '
BRIEF DESCRIPTION French engineer and inventor of a steamship
DATE OF BIRTH April 11, 1733
PLACE OF BIRTH Valleraugue , Gard department , France
DATE OF DEATH February 23, 1801
Place of death Nîmes