1845: During the late 1830s, canal steam boats begin operating with limited success but in 1845, Birmingham engineer John Inshaw builds the first twin-screw canal steamers. Inshaw finds great success through his engineering and in 1859 the owners of the Ashby Canal ban his steamer "Pioneer", claiming it erodes the canal banks. It is later allowed to run no faster than 4 mph, thus begin speed limits on British waterways. Inshaw's "Pioneer" is successful and later inspires other steam boats such as those built for the Grand Junction Canal. Inshaw is also consulted by George Stephenson on the design of wheels for steam locomotives. 1847: William Stroudley joins Birmingham engineer John Inshaw as one of his most successful pupils. Stroudley later becomes one of Britain's most famous steam locomotive engineers of the 19th century, working principally for the London, Brighton and South Coast Railway (LB&SCR). He designs some of the most famous and longest-lived steam locomotives of his era. Birmingham glassworks are among the early mass-producers of uranium glass. Manufacturers include Bacchus, Green & Green (later George Bacchus & Sons), Union Glassworks, in the 1840s, and Lloyd & Summerfield in the 1850s, who are the first to use uranium in glass commercially. 1849: William Tranter takes out the first of many patents for his improvements in manufacture of the firearm. The use of weather charts in a modern sense begins in the middle portion of the 19th century. Weather map pioneers include William Charles Redfield, William Reid, Elias Loomis, and Birmingham's Sir Francis Galton, who creates the first weather maps in order to devise a theory on storm systems. Galton formulates (and later coins the term for) eugenics as well as questionnaires and many important tools in statistics. Galton avidly supports the theories of his cousin Charles Darwin, and also furthers the most important advances in fingerprinting. 1851: John Nettlefold, screw manufacturer, attends the Paris exhibition. He later buys exclusive rights to use Thomas Sloan's machine for making screws, which is in the show. With adaptation of the machine for their Birmingham premises and inspiration of Birmingham mass production methods, Nettlefold & Chamberlain become Britain's leading screw-making firm. 1854: Birmingham chemist Thomas Allcock invents the porous plaster for the relief of pain in New York after fighting as a General for the New York Heavy Artillery during the American Civil War after emigrating in 1845 aged 20. 1857: Joseph Sturge