Oil painting by Sibley of Bennet Woodcroft (1803-1879). Woodcroft was originally a manufacturer of silk and muslin in Manchester and Salford, England, and in 1846 he started up a busines as a consulting engineer and patent agent in London. He was Profesor of Machinery at University College, London from 1847 until 1851. Woodcroft also published various works relating to inventions and inventors.
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