Do you like sailing? If so, you may know that Josef Ludvík František Ressel (29 June 1793 – 9 October 1857) was an Austrian-Czech forester and inventor who designed one of the first working ship’s propellers, and at Equity Point Prague we have a room designed to commemorate it.
He worked in Landstrass (Kostanjevica on the Krka river in Carniola in Slovenia), where he tested his ship propellers for the first time.
In 1821 he was transferred to Trieste (Italy), the biggest port of the Austrian Empire, where his tests were successful. He was awarded a propeller patent in 1827.
He modified a steam-powered boat Civetta by 1829 and test-drove it in the Trieste harbor at six knots before the steam conduits exploded. Because of this misfortune, the police banned further testing.
Besides having been called “the inventor of the propeller“, he was also called the inventor of the steamship and a monument in a park in Vienna commemorates him as “the one and only inventor of the screw propeller and steam shipping”.