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Miniature painter and a distinguished irish engineer-inventor.
John Oldham (1779-1840), (born in Dublin), was a In 1809 he developed a machine for serial numbering of bank notes, adopted by the Bank of Ireland in 1812. Oldham was appointed engineer and chief engraver to the bank. In 1817, and 1820, he patented designs for paddle steamer propulsion systems. His systems were eventually used in the first « ever ocean-going iron steamer » Aaron Manby. John Oldham was elected a life member of the R.D.S. in 1827. He was a member of the R.D.S. natural philosophy committee 1829-32. In the latter year he designed a mechanical water supply system for the R.D.S. botanic garden. Oldham migrated to London in 1837, where he worked for the Bank of England. He died at his residence in Montagu Street, London, on 14 February 1840.
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ortografie alternativă:
OLDHAM, John
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History
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* 1779
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Dublin
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nǎscut
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1809
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He invented a numbering machine.
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1812
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The machine was adopted by the Bank of Ireland, and he received the appointment of engineer and chief engraver.
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1820
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He patented a further improvement (No. 4249), the paddles being placed on a shaft across the ship, and caused to revolve, being feathered by an adaptation of the gearing used in the former patent.
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1827
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A further development of the idea resulted in the construction of a feathering paddle-wheel, which was patented (No. 5455).
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1837
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Banque d'Angleterre
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He introduced many improvements in the machineryfor printing and numbering banknotes.
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† 14.02.1840
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Londres
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mort
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1853
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He obtained a patent N°4169 for propelling ships by means of paddles worked by a steam-engine, an endeavour being made to imitate the motion of a paddle when used in the ordinary way.
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