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| Bernard William Farey (1827-1888)
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| Nephew of [[John Farey]]
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| ----
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| '''1888 Obituary <ref> [[1888 Institution of Civil Engineers: Obituaries]] </ref>
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| . . . . He was first employed by [[William Bridges Adams]], at the [[Fairfield Works, Bow|Fairfield Works]] at Bow. After remaining there for two years and a-half, he obtained the post of assistant at
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| the engineering establishment of [[Swayne and Bovill]], where he worked under [[Frederick Joseph Bramwell|Mr. (now Sir Frederick) Bramwell]].
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| In 1847 he went to [[Bryan Donkin and Co]]’s Engineering
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| Works, at Bermondsey, and a few years later became a partner in
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| the firm. He had now an opportunity to display his scientific gifts
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| and attainments. The first gas-valve with internal rack and pinion
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| was made by Messrs. Donkin and Co. in 1847, for the [[Gas Light and Coke Co|Gas-Light and Coke Company]], and was designed by Mr. Farey. So great has been the demand for these valves, that from that date to 1887 more than fifty thousand have been constructed by the firm.
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| Two years later, in 1849, he invented a double-cylinder rag-boiler for paper-makers.
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| Mr. Farey was an indefatigable scientific worker. A few years
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| after he became a partner in the above firm, he began a series of
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| experiments at Bermondsey with [[Bryan Donkin, Junior|Bryan Donkin, jun.]], extending
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| over a period of ten years. These experiments were made on
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| steam-engines with compound- and single-cylinders, and with and
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| without steam-jackets, and were designed to ascertain their respective
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| economical values. Various improvements were introduced,
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| and accounts of the experiments were sent to 'Engineering,' and
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| were published from time to time in that journal.
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| Later, in 1875-76, he, in conjunction with the other members of the firm,
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| made upwards of one hundred trials with a small experimental
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| compound steam-engine, now in Professor Kennedy’s Engineering
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| Laboratory at University College, London.
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| Such constant activity bore fruit in various patents. In 1852
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| Messrs. Bryan Donkin and Farey patented an improvement in
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| paper-machines for measuring and marking off continuous webs of
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| paper. As a cross-cutting machine for paper, this has since been
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| found of great service.
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| In 1866 Mr. Farey took out a patent for
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| a still more important invention, viz., a tandem horizontal compound-
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| engine, with steam-jackets, the main advantage of which
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| consists in the prevention of wear in the cylinders. This was
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| effected by allowing the weight of the pistons to be taken on
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| outside guides, by means of rods at each side. Many engines of
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| this type are now at work.
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| In 1869 he patented an apparatus for
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| superheating the steam in a compound-engine during its passage
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| from one cylinder to the other; and in 18i3 he took out a patent
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| for improving the slide-valve gear of steam-engines, by abolishing
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| the stuffing-boxes between the high and low pressure valve-chests. . . . [more]
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| ----
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| == See Also ==
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| <what-links-here/>
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| == Sources of Information ==
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| <references/>
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| {{DEFAULTSORT: Farey}}
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| [[Category: Biography]]
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| [[Category: Births 1820-1829]]
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| [[Category: Deaths 1880-1889]]
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| [[Category: Institution of Civil Engineers]]
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