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Josef Ressel |
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Ressel, Josef
Born June 29, 1793, in Chrudim, Bohemia; died Oct. 10, 1857, in Ljubljana. Czech inventor. Ressel studied at the University of Vienna and at the Vienna Forestry Academy and graduated from the latter institution in 1817. He worked as a forester near Trieste. In 1812, Ressel worked out a design for a ship whose propulsion was based on the use of Archimedes’ screw. He successfully tested a screw propeller on a boat in 1826 and obtained the Austrian patent for this propeller in 1827. In 1829 he built the screw-steamer Civetta, which had a displacement of 33 tons. Ressel’s new propeller permitted the vessel to attain a speed of approximately 6 knots. Further work was halted because of damage to the ship’s steam engine and lack of funds. REFERENCESOttův slovník naučný, vol. 21. Prague, 1904. Pages 591–94.Příruční slovník naučný, vol. 3. Prague, 1966. Page 846. Meyers neues Lexikon, vol. 6. Leipzig, 1963. Page 925. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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