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Ressel, Josef#

Ressel, Josef, b. Chrudim (Czech Republic), June 29, 1793, d. Ljubljana, Slovenia (then Laibach), Oct. 9, 1857, inventor. Studied at the University of Vienna and at the School of Forestry in Mariabrunn, from 1817 forestry official, 1821-1835 in Trieste, from 1839 service in the navy in Venice, from 1852 as Naval Forestry official. Beside his career as a civil servant he worked on several inventions, for which he was granted 10 privileges, including presses, steam machines, pneumatic post, a steam mill and a method for the production of soap. His most important invention was the ship´s propeller in 1827, first tested in 1829 in a large-scale trial on the steamer "Civetta" in the port of Trieste.

Literature#

R. Keimel, J. R. - Sein Leben und Werk, 1971.

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