Josef Ressel

Landa Petr

Josef Ressel

Ludwig Franz Josef Ressel was a Czech writer and inventor. His most famous

invention is the propeller.

Josef Ressel

He was born on 29 6th 1793 in Chrudim (a small town in the east part of the Czech republic) in a mixed marriage, his father was German and his mother was Czech.

Josef Ressel - Propeller

His invention of the propeller was tested for the first time In Kostanjevica river Krka. In 1821 he was transferred to Trieste, where he became a local verderer and successfully continued with the tests. In He patented his invention in1827 but he obtained it in 1829, achieved with a modified liner port speed of six knots.

Josef Ressel – What is a Propeller? A propeller is a part of the boat, which with its

rotational motion creates a force which propels the ship.

Josef Ressel

The propeler was not his only invention. Josef Ressel also invented the screw press, inter alia, for the production of wine and oil, ball bearing without lubrication, equipment for steam leaching of dyes and tannins, pneumatic pipelines and compass.