THE screw-propeller was practically applied to steamships by John Ericsson and Francis Petit Smith about seventy years ago. It speedily became formidable rival to the paddle-wheel. Long ago it ...

You can find the John Ericsson Memorial just south of ... Ericsson is best known for coming up with the “screw” propeller, which revolutionized sea travel. He also is credited with inventing ...

The S.S. Archimedes (1838) was fitted with a double-threaded screw of half a turn, in accordance with Smith's amended patent. Other historical exhibits include models of Ericsson's experimental ...