with inclined planes instead of locks. He obtained a patent for this idea in 1794, and also began working on ideas for the steam power of boats. He published a pamphlet about canals and patented a dredging machine and several other inventions. In 1794, he moved to Manchester to gain practical knowledge of English canal engineering. While there he became friendly with Robert Owen, a cotton manufacturer and early socialist. Owen agreed to finance the development and promotion of Fulton's designs for inclined planes and earth-digging machines; he was instrumental in introducing the American to a canal company, which awarded him a sub-contract. But Fulton was not successful at this practical effort and he gave up the contract after a short time. As early as 1793, Fulton proposed plans for steam-powered vessels to both the United States and British governments. The first steamships had appeared considerably earlier. The earliest steam-powered ship, in which the engine moved oars, was built by Claude de Jouffroy in France. Called Palmipède, it was tested on the Doubs in 1776. In 1783, de Jouffroy built , the first paddle steamer, which sailed successfully on the Saône. The first successful trial run of a steamboat in America had been made by inventor John Fitch, on the Delaware River on August 22, 1787. William Symington had successfully tried steamboats in 1788, and it seems probable that Fulton was aware of these developments. In Britain, Fulton met the Duke of Bridgewater, Francis Egerton, whose canal, the first to be constructed in the country, was being used for trials of a steam tug. Fulton became very enthusiastic about the canals, and wrote a 1796 treatise on canal construction, suggesting improvements to locks and other features. Working for the Duke of Bridgewater between 1796 and 1799, Fulton had a boat constructed in the Duke's timber yard, under the supervision of Benjamin Powell. After installation of the machinery supplied by the engineers Bateman and Sherratt of Salford, the boat was duly christened Bonaparte in honour of Fulton having served under Napoleon. After expensive trials, because of the configuration of the design, the team feared the paddles might damage the clay lining of the canal and eventually abandoned the experiment. In 1801, Bridgewater instead ordered eight vessels for his canal based on , constructed by Symington. In 1797, Fulton went to Paris, where he was well known as an inventor. He studied