Joseph Maudslay, English engineer, c 1850.
© Science Museum / Science & Society Picture Library
Joseph Maudslay (1801-1861) was the son of the famous inventor and engineer Henry Maudslay. Like his brother, Joseph went to work in the family firm, Maudslay, Sons & Field and specialised in marine engineering, patenting the Oscillating engine in 1827. This was one of the most popular marine engines in the paddle steamers of the nineteenth century and, in 1828, was fitted to the Thames steamer 'Endeavour' which ran between London and Richmond until 1840. Together with his father's partner, Joshua Field, he also invented the Steeple engine in 1839 and the Siamese engine in 1844. Maudslay built the engines of the first admiralty screw steamship in 1841 and a larger version of his oscillating engine powered the famous Great Eastern.