'Bensley's Steam-Engine' and 'Bramah's Patent Pres', 1826.
© Science Museum / Science & Society Picture Library
Engraving by J Pas. Thomas Bensley's steam-powered mechanical printing pres was patented in 1810. Although still printing only one side of a sheet at a time, the new pres could print 1100 sheets an hour which made it far more economical. In 1795 Joseph Bramah (1749-1814) patented his hydraulic pres, known as the Bramah pres. Illustration from 'Encyclopaedia Londinensis, or, Universal Dictionary of Arts, Sciences, and Literature' published in London, 1810-1829.