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41 Manoeuvre
subs.Scheme, plot: P. ἐπιβουλή, ἡ, P. and V. μηχάνημα, τό, V. τέχνη, ἡ, τέχνημα, τό.Wise devise: P. and V. σόφισμα, τό.Practice: P. ἄσκησις, ἡ.Practice manœuvres ( with ships): P. ἀναπειρᾶσθαι (absol.) (Thuc. 7, 12).( They thought) the Athenians would have no opportunity in the narrow space either of sailing round them or breaking their line, the part of their manœuvres on which they most relied: P. τοῖς Ἀθηναίοις οὐκ ἔσεσθαι σφῶν ἐν στενοχωρίᾳ οὔτε περίπλουν οὔτε διέκπλουν ᾧπερ τῆς τέχνης μάλιστα ἐπίστευον (Thuc. 7, 36).Counter manœuvre: P. ἀντιτέχνησις, ἡ.——————v. trans.Handle, control: P. and V. κυβερνᾶν.A large number of hoplites on both sides were manœuvring in a small space: P. ὁπλῖται ἀμφοτέρων οὐκ ὀλίγοι ἐν στενοχωρίᾳ ἀνεστρέφοντο (Thuc. 7, 44).Woodhouse English-Greek dictionary. A vocabulary of the Attic language > Manoeuvre
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42 Seasoned
adj.Of wood: P. and V. ξηρός.Our navy was at first in fine condition both as regards the seasoned nature of the ships and the health of the crews: P. τὸ ναυτικὸν ἡμῶν τὸ μὲν πρῶτον ἤκμαζε καὶ τῶν νεῶν τῇ ξηρότητι καὶ τῶν πληρωμάτων τῇ σωτηρίᾳ (Thuc. 7, 12).Woodhouse English-Greek dictionary. A vocabulary of the Attic language > Seasoned
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43 Barlow, Peter
SUBJECT AREA: Ports and shipping[br]b. 13 October 1776 Norwich, Englandd. 1 March 1862 Kent, England[br]English mathematician, physicist and optician.[br]Barlow had little formal academic education, but by his own efforts rectified this deficiency. His contributions to various periodicals ensured that he became recognized as a man of considerable scientific understanding. In 1801, through competitive examination, he became Assistant Mathematics Master at the Royal Military Academy, Woolwich, and some years later was promoted to Professor. He resigned from this post in 1847, but retained full salary in recognition of his many public services.He is remembered for several notable achievements, and for some experiments designed to overcome problems such as the deviation of compasses in iron ships. Here, he proposed the use of small iron plates designed to overcome other attractions: these were used by both the British and Russian navies. Optical experiments commenced around 1827 and in later years he carried out tests to optimize the size and shape of many parts used in the railways that were spreading throughout Britain and elsewhere at that time.In 1814 he published mathematical tables of squares, cubes, square roots, cube roots and reciprocals of all integers from 1 to 10,000. This volume was of great value in ship design and other engineering processes where heavy numerical effort is required; it was reprinted many times, the last being in 1965 when it had been all but superseded by the calculator and the computer. In the preface to the original edition, Barlow wrote, "the only motive which prompted me to engage in this unprofitable task was the utility that I conceived might result from my labour… if I have succeeded in facilitating abstruse arithmetical calculations, then I have obtained the object in view."[br]Principal Honours and DistinctionsFRS 1823; Copley Medal (for discoveries in magnetism) 1825. Honorary Member, Institution of Civil Engineers 1820.Bibliography1811, An Elementary Investigation of the Theory of Numbers.1814, Barlow's Tables (these have continued to be published until recently, one edition being in 1965 (London: Spon); later editions have taken the integers up to 12,500).1817, Essay on the Strength of Timber and Other Materials.Further ReadingDictionary of National Biography.FMW -
44 Bramah, Joseph
SUBJECT AREA: Civil engineering, Domestic appliances and interiors, Land transport, Mechanical, pneumatic and hydraulic engineering, Public utilities[br]b. 2 April 1749 Stainborough, Yorkshire, Englandd. 9 December 1814 Pimlico, London, England[br]English inventor of the second patented water-closet, the beer-engine, the Bramah lock and, most important, the hydraulic press.[br]Bramah was the son of a tenant farmer and was educated at the village school before being apprenticed to a local carpenter, Thomas Allot. He walked to London c.1773 and found work with a Mr Allen that included the repair of some of the comparatively rare water-closets of the period. He invented and patented one of his own, which was followed by a water cock in 1783. His next invention, a greatly improved lock, involved the devising of a number of special machine tools, for it was one of the first devices involving interchangeable components in its manufacture. In this he had the help of Henry Maudslay, then a young and unknown engineer, who became Bramah's foreman before setting up business on his own. In 1784 he moved his premises from Denmark Street, St Giles, to 124 Piccadilly, which was later used as a showroom when he set up a factory in Pimlico. He invented an engine for putting out fires in 1785 and 1793, in effect a reciprocating rotary-vane pump. He undertook the refurbishment and modernization of Norwich waterworks c.1793, but fell out with Robert Mylne, who was acting as Consultant to the Norwich Corporation and had produced a remarkably vague specification. This was Bramah's only venture into the field of civil engineering.In 1797 he acted as an expert witness for Hornblower \& Maberley in the patent infringement case brought against them by Boulton and Watt. Having been cut short by the judge, he published his proposed evidence in "Letter to the Rt Hon. Sir James Eyre, Lord Chief Justice of the Common Pleas…etc". In 1795 he was granted his most important patent, based on Pascal's Hydrostatic Paradox, for the hydraulic press which also incorporated the concept of hydraulics for the transmission of both power and motion and was the foundation of the whole subsequent hydraulic industry. There is no truth in the oft-repeated assertion originating from Samuel Smiles's Industrial Biography (1863) that the hydraulic press could not be made to work until Henry Maudslay invented the self-sealing neck leather. Bramah used a single-acting upstroking ram, sealed only at its base with a U-leather. There was no need for a neck leather.He also used the concept of the weight-loaded, in this case as a public-house beer-engine. He devised machinery for carbonating soda water. The first banknote-numbering machine was of his design and was bought by the Bank of England. His development of a machine to cut twelve nibs from one goose quill started a patent specification which ended with the invention of the fountain pen, patented in 1809. His coach brakes were an innovation that was followed bv a form of hydropneumatic carriage suspension that was somewhat in advance of its time, as was his patent of 1812. This foresaw the introduction of hydraulic power mains in major cities and included the telescopic ram and the air-loaded accumulator.In all Joseph Bramah was granted eighteen patents. On 22 March 1813 he demonstrated a hydraulic machine for pulling up trees by the roots in Hyde Park before a large crowd headed by the Duke of York. Using the same machine in Alice Holt Forest in Hampshire to fell timber for ships for the Navy, he caught a chill and died soon after at his home in Pimlico.[br]Bibliography1778, British patent no. 1177 (water-closet). 1784, British patent no. 1430 (Bramah Lock). 1795, British patent no. 2045 (hydraulic press). 1809, British patent no. 3260 (fountain pen). 1812, British patent no. 3611.Further ReadingI.McNeil, 1968, Joseph Bramah, a Century of Invention.S.Smiles, 1863, Industrial Biography.H.W.Dickinson, 1942, "Joseph Bramah and his inventions", Transactions of the Newcomen Society 22:169–86.IMcN -
45 By, Lieutenant-Colonel John
SUBJECT AREA: Canals[br]b. 7 (?) August 1779 Lambeth, London, Englandd. 1 February 1836 Frant, Sussex, England[br]English Engineer-in-Charge of the construction of the Rideau Canal, linking the St Lawrence and Ottawa Rivers in Canada.[br]Admitted in 1797 as a Gentleman Cadet in the Royal Military Academy at Woolwich, By was commissioned on 1 August 1799 as a second lieutenant in the Royal Artillery, but was soon transferred to the Royal Engineers. Posted to Plymouth upon the development of the fortifications, he was further posted to Canada, arriving there in August 1802.In 1803 By was engaged in canal work, assisting Captain Bruyères in the construction of a short canal (1,500 ft (460 m) long) at the Cascades on the Grand, now the Ottawa, River. In 1805 he was back at the Cascades repairing ice damage caused during the previous winter. He was promoted Captain in 1809. Meanwhile he worked on the fortifications of Quebec and in 1806–7 he built a scale model of the Citadel, which is now in the National War Museum of Canada. He returned to England in 1810 and served in Portugal in 1811. Back in England at the end of the year, he was appointed Royal Engineer Officer in charge at the Waltham Abbey Gunpowder Works on 1 January 1812 and later planned the new Small Arms Factory at Enfield; both works were on the navigable River Lee.In the post-Napoleonic period Major By, as he then was, retired on half-pay but was promoted to Lieu tenant-Colonel on 2 December 1824. Eighteen months later, in March 1826, he returned to Canada on active duty to build the Rideau Canal. This was John By's greatest work. It was conceived after the American war of 1812–14 as a connection for vessels to reach Kingston and the Great Lakes from Montreal while avoiding possible attack from the United States forces. Ships would pass up the Ottawa River using the already-constructed locks and bypass channels and then travel via a new canal cut through virgin forest southwards to the St Lawrence at Kingston. By based his operational headquarters at the Ottawa River end of the new works and in a forest clearing he established a small settlement. Because of the regard in which By was held, this settlement became known as By town. In 1855, long after By's death, the settlement was designated by Queen Victoria as capital of United Canada (which was to become a self-governing Dominion in 1867) and renamed Ottawa; as a result of the presence of the national government, the growth of the town accelerated greatly.Between 1826–7 and 1832 the Rideau Canal was constructed. It included the massive engineering works of Jones Falls Dam (62 ft 6 in. (19 m) high) and 47 locks. By exercised an almost paternal care over those employed under his direction. The canal was completed in June 1832 at a cost of £800,000. By was summoned back to London to face virulent and unjust criticism from the Treasury. He was honoured in Canada but vilified by the British Government.[br]Further ReadingR.F.Leggett, 1982, John By, Historical Society of Canada.—1976, Canals of Canada, Newton Abbot: David \& Charles.—1972, Rideau Waterway, Toronto: University of Toronto Press.Bernard Pothier, 1978, "The Quebec Model", Canadian War Museum Paper 9, Ottawa: National Museums of Canada.JHBBiographical history of technology > By, Lieutenant-Colonel John
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46 Davy, Sir Humphry
[br]b. 17 December 1778 Penzance, Cornwall, Englandd. 29 May 1829 Geneva, Switzerland[br]English chemist, discoverer of the alkali and alkaline earth metals and the halogens, inventor of the miner's safety lamp.[br]Educated at the Latin School at Penzance and from 1792 at Truro Grammar School, Davy was apprenticed to a surgeon in Penzance. In 1797 he began to teach himself chemistry by reading, among other works, Lavoisier's elementary treatise on chemistry. In 1798 Dr Thomas Beddoes of Bristol engaged him as assistant in setting up his Pneumatic Institution to pioneer the medical application of the newly discovered gases, especially oxygen.In 1799 he discovered the anaesthetic properties of nitrous oxide, discovered not long before by the chemist Joseph Priestley. He also noted its intoxicating qualities, on account of which it was dubbed "laughing-gas". Two years later Count Rumford, founder of the Royal Institution in 1800, appointed Davy Assistant Lecturer, and the following year Professor. His lecturing ability soon began to attract large audiences, making science both popular and fashionable.Davy was stimulated by Volta's invention of the voltaic pile, or electric battery, to construct one for himself in 1800. That enabled him to embark on the researches into electrochemistry by which is chiefly known. In 1807 he tried decomposing caustic soda and caustic potash, hitherto regarded as elements, by electrolysis and obtained the metals sodium and potassium. He went on to discover the metals barium, strontium, calcium and magnesium by the same means. Next, he turned his attention to chlorine, which was then regarded as an oxide in accordance with Lavoisier's theory that oxygen was the essential component of acids; Davy failed to decompose it, however, even with the aid of electricity and concluded that it was an element, thus disproving Lavoisier's view of the nature of acids. In 1812 Davy published his Elements of Chemical Philosophy, in which he presented his chemical ideas without, however, committing himself to the atomic theory, recently advanced by John Dalton.In 1813 Davy engaged Faraday as Assistant, perhaps his greatest service to science. In April 1815 Davy was asked to assist in the development of a miner's lamp which could be safely used in a firedamp (methane) laden atmosphere. The "Davy lamp", which emerged in January 1816, had its flame completely surrounded by a fine wire mesh; George Stephenson's lamp, based on a similar principle, had been introduced into the Northumberland pits several months earlier, and a bitter controversy as to priority of invention ensued, but it was Davy who was awarded the prize for inventing a successful safety lamp.In 1824 Davy was the first to suggest the possibility of conferring cathodic protection to the copper bottoms of naval vessels by the use of sacrificial electrodes. Zinc and iron were found to be equally effective in inhibiting corrosion, although the scheme was later abandoned when it was found that ships protected in this way were rapidly fouled by weeds and barnacles.[br]Principal Honours and DistinctionsKnighted 1812. FRS 1803; President, Royal Society 1820. Royal Society Copley Medal 1805.Bibliography1812, Elements of Chemical Philosophy.1839–40, The Collected Works of Sir Humphry Davy, 9 vols, ed. John Davy, London.Further ReadingJ.Davy, 1836, Memoirs of the Life of Sir Humphry Davy, London (a classic biography). J.A.Paris, 1831, The Life of Sir Humphry Davy, London (a classic biography). H.Hartley, 1967, Humphry Davy, London (a more recent biography).J.Z.Fullmer, 1969, Cambridge, Mass, (a bibliography of Davy's works).ASD -
47 Dony, Jean-Jacques Daniel
SUBJECT AREA: Metallurgy[br]b. 24 February 1759 Liège, Belgiumd. 6 November 1819 Liège, Belgium[br]Belgian inventor of the horizontal retort process of zinc manufacture.[br]Dony trained initially for the Church, and it is not known how he became interested in the production of zinc. Liège, however, was close to extensive deposits of the zinc ore calamine, and brass had been made since Roman times in the region between Liège and Aix-la-Chapelle (now Aachen). William Champion's technique of brass manufacture was known there and was considered to be too complicated and expensive for the routine manufacture of brass. Dony may have learned about earlier processes of manufacturing zinc on the European continent from his friend Professor Villette of Liège University, and about English methods from Henri Delloye, a friend of both Villette and Dony and who visited Birmingham and Bristol on their behalf to study zinc smelting processes and brass manufacture at first hand. By 21 March 1805 Dony had succeeded in extracting zinc from calamine and casting it in ingots. On the basis of this success he applied to the French Republican administration for assistance and in 1806 was assigned by Napoleon the sole mining rights to the calamine deposits of the Vieille Montagne, or Altenberg, near Moresnet, five miles (8 km) from Aachen. With these rights went the obligation of developing an industrially viable method of zinc refining. In 1807 he constructed a small factory at Isle and there, after much effort, he perfected his celebrated horizontal retort process, the "Liège Method". After July 1809 zinc was being produced in abundance, and in January 1810 Dony was granted an Imperial Patent giving him a monopoly of zinc manufacture for fifteen years. He erected a rolling mill at Saint-Léonard and attempted to persuade the Minister of Marine to use zinc sheets rather than copper for the protection of ships. Between 1809 and 1810 Dony reduced the price of zinc in Liège from 8.60 to 2.60 francs per kilo. However, after 1813 he began to encounter financial problems and in 1818 he surrendered his commercial interests to his partner Dominique Mosselman (d. 1837). The horizontal retort process soon rendered obsolete that of William Champion, and variants of the Liège Method were rapidly evolved in Germany, Britain and the USA.[br]Further ReadingA.Dony, 1941, A Propos de l'industrie belge du zinc au début du XIXe siècle, Brussels. L.Boscheron, "The zinc industry of the Liège District", Journal of the Institution ofMetals 36 (2):21–6.H.Delloye, 1810, Recherches sur la calamine, le zinc et les emplois, Liège: Dauvrain. 1836, Bibliographie Liégeoise.ASDBiographical history of technology > Dony, Jean-Jacques Daniel
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48 Fairbairn, William
SUBJECT AREA: Ports and shipping[br]b. 19 February 1789 Kelso, Roxburghshire, Scotlandd. 18 August 1874 Farnham, Surrey, England[br]Scottish engineer and shipbuilder, pioneer in the use of iron in structures.[br]Born in modest circumstances, Fairbairn nevertheless enjoyed a broad and liberal education until around the age of 14. Thereafter he served an apprenticeship as a millwright in a Northumberland colliery. This seven-year period marked him out as a man of determination and intellectual ability; he planned his life around the practical work of pit-machinery maintenance and devoted his limited free time to the study of mathematics, science and history as well as "Church, Milton and Recreation". Like many before and countless thousands after, he worked in London for some difficult and profitless years, and then moved to Manchester, the city he was to regard as home for the rest of his life. In 1816 he was married. Along with a workmate, James Lillie, he set up a general engineering business, which steadily enlarged and ultimately involved both shipbuilding and boiler-making. The partnership was dissolved in 1832 and Fairbairn continued on his own. Consultancy work commissioned by the Forth and Clyde Canal led to the construction of iron steamships by Fairbairn for the canal; one of these, the PS Manchester was lost in the Irish Sea (through the little-understood phenomenon of compass deviation) on her delivery voyage from Manchester to the Clyde. This brought Fairbairn to the forefront of research in this field and confirmed him as a shipbuilder in the novel construction of iron vessels. In 1835 he operated the Millwall Shipyard on the Isle of Dogs on the Thames; this is regarded as one of the first two shipyards dedicated to iron production from the outset (the other being Tod and MacGregor of Glasgow). Losses at the London yard forced Fairbairn to sell off, and the yard passed into the hands of John Scott Russell, who built the I.K. Brunel -designed Great Eastern on the site. However, his business in Manchester went from strength to strength: he produced an improved Cornish boiler with two firetubes, known as the Lancashire boiler; he invented a riveting machine; and designed the beautiful swan-necked box-structured crane that is known as the Fairbairn crane to this day.Throughout his life he advocated the widest use of iron; he served on the Admiralty Committee of 1861 investigating the use of this material in the Royal Navy. In his later years he travelled widely in Europe as an engineering consultant and published many papers on engineering. His contribution to worldwide engineering was recognized during his lifetime by the conferment of a baronetcy by Queen Victoria.[br]Principal Honours and DistinctionsCreated Baronet 1869. FRS 1850. Elected to the Academy of Science of France 1852. President, Institution of Mechnical Engineers 1854. Royal Society Gold Medal 1860. President, British Association 1861.BibliographyFairbairn wrote many papers on a wide range of engineering subjects from water-wheels to iron metallurgy and from railway brakes to the strength of iron ships. In 1856 he contributed the article on iron to the 8th edition of Encyclopaedia Britannica.Further ReadingW.Pole (ed.), 1877, The Life of Sir William Fairbairn Bart, London: Longmans Green; reprinted 1970, David and Charles Reprints (written in part by Fairbairn, but completed and edited by Pole).FMW -
49 Gatling, Dr Richard Jordan
[br]b. 12 September 1818 Winston, North Carolina, USAd. 26 February 1903 New York, USA[br]American weapons designer and metallurgist.[br]Gatling first became interested in inventing when helping his father develop more-efficient agricultural machines, and as early as 1839 he developed a screw propeller for ships. Shortly after this he was struck down by smallpox, and it was this that caused him, when he recovered, to study medicine; he did this at the Ohio Medical College, graduating in 1850. The outbreak of the American Civil War in 1861 triggered an immediate interest in weaponry and he set about designing a rapid-fire weapon, which would both bear his name and be one of the forerunners of the machine gun: he completed his design of the Gatling Gun in 1862. His concept of using several barrels was not unique, with other inventors such as the Belgian Fafschamps and the Frenchman Reffye also employing it. However, Catling's gun was superior to the others in the soundness of its engineering. The rounds were fed through a hopper on top of the gun into the chambers of each barrel, and the barrels themselves were fixed in a cluster. An endless screw operated by a hand crank controlled the operation, opening the breech of each barrel in turn, enabling the round to drop into the chamber through a series of grooves, and then closing the breech and releasing the striker. In the face of fierce competition, the Gatling was adopted by the US Army in 1866, and many other armies followed suit. Although a version powered by an electric motor was introduced in 1893, the Gatling was gradually superseded by the fully automatic machine gun, first developed by Maxim. Even so, such was the excellence of the Gatling's mechanics that the concept was readopted by the Americans in the late 1950s and employed in such systems as the Vulcan air-defence gun and the airborne Minigun. Gatling's inventions did not end with his gun. In 1886 he developed a new steel and aluminium alloy and also experimented with the production of cast-steel cannon.CMBiographical history of technology > Gatling, Dr Richard Jordan
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50 Purvis, Frank Prior
SUBJECT AREA: Ports and shipping[br]b. 18 April 1850 London, Englandd. 20 February 1940 Seaford Downs, England[br]English naval architect.[br]Despite being one of the youngest entrants to the South Kensington School of Naval Architecture, Purvis obtained both a Whitworth Exhibition and a Scholarship. Upon graduating he commenced a career in shipbuilding that involved him in military, civil and research work in Scotland, England and Japan. Initially he worked in Robert Napier's shipyard on the River Clyde, and then in the London drawing offices of Sir Edward Reed, before joining the staff of the Admiralty, where he assisted William Froude in his classic ship experiments at Torquay. After a short spell with Sir William Pearce at Govan, Purvis joined William Denny and Bros and with his recently gained knowledge of hydrodynamics helped set up the world's first commercial ship model tank at Dumbarton. His penultimate appointment was that of Shipbuilding Partner in the Scottish shipyard of Blackwood and Gordon.In 1901 he became Professor of Naval Architecture at the Imperial University of Tokyo (succeeding Percy Hillhouse, who had become Naval Architect of Fairfield and later became Professor at Glasgow University) and it was in this role that Purvis was to achieve distinction through developing a teaching course of the highest order. It is accepted that his influence on the Japanese shipbuilding industry was profound. After nineteen years of service he retired to the United Kingdom.[br]BibliographyPurvis presented several papers to the Institution of Naval Architects and to the Institution of Engineers and Shipbuilders in Scotland, and in 1900 he assisted in the preparation of the Ships and Shipbuilding supplement to Encyclopaedia Britannica.FMW
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