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1 Arnold, Aza
SUBJECT AREA: Textiles[br]b. 4 October 1788 Smithfield, Pawtucket, Rhode Island, USAd. 1865 Washington, DC, USA[br]American textile machinist who applied the differential motion to roving frames, solving the problem of winding on the delicate cotton rovings.[br]He was the son of Benjamin and Isabel Arnold, but his mother died when he was 2 years old and after his father's second marriage he was largely left to look after himself. After attending the village school he learnt the trade of a carpenter, and following this he became a machinist. He entered the employment of Samuel Slater, but left after a few years to engage in the unsuccessful manufacture of woollen blankets. He became involved in an engineering shop, where he devised a machine for taking wool off a carding machine and making it into endless slivers or rovings for spinning. He then became associated with a cotton-spinning mill, which led to his most important invention. The carded cotton sliver had to be reduced in thickness before it could be spun on the final machines such as the mule or the waterframe. The roving, as the mass of cotton fibres was called at this stage, was thin and very delicate because it could not be twisted to give strength, as this would not allow it to be drawn out again during the next stage. In order to wind the roving on to bobbins, the speed of the bobbin had to be just right but the diameter of the bobbin increased as it was filled. Obtaining the correct reduction in speed as the circumference increased was partially solved by the use of double-coned pulleys, but the driving belt was liable to slip owing to the power that had to be transmitted.The final solution to the problem came with the introduction of the differential drive with bevel gears or a sun-and-planet motion. Arnold had invented this compound motion in 1818 but did not think of applying it to the roving frame until 1820. It combined the direct-gearing drive from the main shaft of the machine with that from the cone-drum drive so that the latter only provided the difference between flyer and bobbin speeds, which meant that most of the transmission power was taken away from the belt. The patent for this invention was issued to Arnold on 23 January 1823 and was soon copied in Britain by Henry Houldsworth, although J.Green of Mansfield may have originated it independendy in the same year. Arnold's patent was widely infringed in America and he sued the Proprietors of the Locks and Canals, machine makers for the Lowell manufacturers, for $30,000, eventually receiving $3,500 compensation. Arnold had his own machine shop but he gave it up in 1838 and moved the Philadelphia, where he operated the Mulhausen Print Works. Around 1850 he went to Washington, DC, and became a patent attorney, remaining as such until his death. On 24 June 1856 he was granted patent for a self-setting and self-raking saw for sawing machines.[br]Bibliography28 June 1856, US patent no. 15,163 (self-setting and self-raking saw for sawing machines).Further ReadingDictionary of American Biography, Vol. 1.W.English, 1969, The Textile Industry, London (a description of the principles of the differential gear applied to the roving frame).D.J.Jeremy, 1981, Transatlantic Industrial Revolution. The Diffusion of Textile Technologies Between Britain and America, 1790–1830, Oxford (a discussion of the introduction and spread of Arnold's gear).RLH -
2 Dyer, Joseph Chessborough
SUBJECT AREA: Textiles[br]b. 15 November 1780 Stonnington Point, Connecticut, USAd. 2 May 1871 Manchester, England[br]American inventor of a popular type of roving frame for cotton manufacture.[br]As a youth, Dyer constructed an unsinkable life-boat but did not immediately pursue his mechanical bent, for at 16 he entered the counting-house of a French refugee named Nancrède and succeeded to part of the business. He first went to England in 1801 and finally settled in 1811 when he married Ellen Jones (d. 1842) of Gower Street, London. Dyer was already linked with American inventors and brought to England Perkins's plan for steel engraving in 1809, shearing and nail-making machines in 1811, and also received plans and specifications for Fulton's steamboats. He seems to have acted as a sort of British patent agent for American inventors, and in 1811 took out a patent for carding engines and a card clothing machine. In 1813 there was a patent for spinning long-fibred substances such as hemp, flax or grasses, and in 1825 there was a further patent for card making machinery. Joshua Field, on his tour through Britain in 1821, saw a wire drawing machine and a leather splitting machine at Dyer's works as well as the card-making machines. At first Dyer lived in Camden Town, London, but he had a card clothing business in Birmingham. He moved to Manchester c.1816, where he developed an extensive engineering works under the name "Joseph C.Dyer, patent card manufacturers, 8 Stanley Street, Dale Street". In 1832 he founded another works at Gamaches, Somme, France, but this enterprise was closed in 1848 with heavy losses through the mismanagement of an agent. In 1825 Dyer improved on Danforth's roving frame and started to manufacture it. While it was still a comparatively crude machine when com-pared with later versions, it had the merit of turning out a large quantity of work and was very popular, realizing a large sum of money. He patented the machine that year and must have continued his interest in these machines as further patents followed in 1830 and 1835. In 1821 Dyer had been involved in the foundation of the Manchester Guardian (now The Guardian) and he was linked with the construction of the Liverpool \& Manchester Railway. He was not so successful with the ill-fated Bank of Manchester, of which he was a director and in which he lost £98,000. Dyer played an active role in the community and presented many papers to the Manchester Literary and Philosophical Society. He helped to establish the Royal Institution in London and the Mechanics Institution in Manchester. In 1830 he was a member of the delegation to Paris to take contributions from the town of Manchester for the relief of those wounded in the July revolution and to congratulate Louis-Philippe on his accession. He called for the reform of Parliament and helped to form the Anti-Corn Law League. He hated slavery and wrote several articles on the subject, both prior to and during the American Civil War.[br]Bibliography1811, British patent no. 3,498 (carding engines and card clothing machine). 1813, British patent no. 3,743 (spinning long-fibred substances).1825, British patent no. 5,309 (card making machinery).1825, British patent no. 5,217 (roving frame). 1830, British patent no. 5,909 (roving frame).1835, British patent no. 6,863 (roving frame).Further ReadingDictionary of National Biography.J.W.Hall, 1932–3, "Joshua Field's diary of a tour in 1821 through the Midlands", Transactions of the Newcomen Society 6.Evan Leigh, 1875, The Science of Modern Cotton Spinning, Vol. II, Manchester (provides an account of Dyer's roving frame).D.J.Jeremy, 1981, Transatlantic Industrial Revolution: The Diffusion of TextileTechnologies Between Britain and America, 1790–1830s, Oxford (describes Dyer's links with America).See also: Arnold, AzaRLHBiographical history of technology > Dyer, Joseph Chessborough
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3 Textiles
See also: INDEX BY SUBJECT AREA[br]Dore, Samuel GriswoldHeilmann, JosuéLevers, JohnLister, Samuel CunliffeMa JunSong Yingxing
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