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SUBJECT AREA: Ports and shipping

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Davis was the son of a detective with the City of London police. At the age of 11 he entered the employment of Siebe, Gorman \& Co., manufacturers of diving and other safety equipment since 1819, at their Lambeth works. By good fortune, his neat handwriting attracted the notice of Mr Gorman and he was transferred to work in the office. He studied hard after working hours and rose steadily in the firm. In his twenties he was promoted to Assistant Manager, then General Manager, Managing Director and finally Governing Director. He retired in 1960, having been made Life President the previous year, and continued to attend the office regularly until May 1964.

Davis's entire career was devoted to research and development in the firm's special field. In 1906 he perfected the first practicable oxygen-breathing apparatus for use in mine rescue; it was widely adopted and with modifications was still in use in the 1990s. With Professor Leonard Hill he designed a deep-sea diving-bell incorporating a decompression chamber. He also invented an oxygen-breathing apparatus and heated apparel for airmen flying at high altitudes.

Immediately after the first German gas attacks on the Western Front in April 1915, Davis devised a respirator, known as the stocking skene or veil mask. He quickly organized the mass manufacture of this device, roping in members of his family and placing the work in the homes of Lambeth: within 48 hours the first consignment was being sent off to France.

He was a member of the Admiralty Deep Sea Diving Committee, which in 1933 completed tables for the safe ascent of divers with oxygen from a depth of 300 ft (91 m). They were compiled by Davis in conjunction with Professors J.B.S.Haldane and Leonard Hill and Captain G.C.Damant, the Royal Navy's leading diving expert. With revisions these tables have been used by the Navy ever since. Davis's best-known invention was first used in 1929: the Davis Submarine Escape Apparatus. It became standard equipment on submarines until it was replaced by the Built-in Breathing System, which the firm began manufacturing in 1951.

The firm's works were bombed during the Second World War and were re-established at Chessington, Surrey. The extensive research facilities there were placed at the disposal of the Royal Navy and the Admiralty Experimental Diving Unit. Davis worked with Haldane and Hill on problems of the underwater physiology of working divers. A number of inventions issued from Chessington, such as the human torpedo, midget submarine and human minesweeper. In the early 1950s the firm helped to pioneer the use of underwater television to investigate the sinking of the submarine Affray and the crashed Comet jet airliners.

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SUBJECT AREA: Automotive engineering, Land transport

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He was the son of an Irish immigrant farmer, William Ford, and the oldest son to survive of Mary Litogot; his mother died in 1876 with the birth of her sixth child. He went to the village school, and at the age of 16 he was apprenticed to Flower brothers' machine shop and then at the Drydock \& Engineering Works in Detroit. In 1882 he left to return to the family farm and spent some time working with a 1 1/2 hp steam engine doing odd jobs for the farming community at $3 per day. He was then employed as a demonstrator for Westinghouse steam engines. He met Clara Jane Bryant at New Year 1885 and they were married on 11 April 1888. Their only child, Edsel Bryant Ford, was born on 6 November 1893.

At that time Henry worked on steam engine repairs for the Edison Illuminating Company, where he became Chief Engineer. He became one of a group working to develop a "horseless carriage" in 1896 and in June completed his first vehicle, a "quadri cycle" with a two-cylinder engine. It was built in a brick shed, which had to be partially demolished to get the carriage out.

Ford became involved in motor racing, at which he was more successful than he was in starting a car-manufacturing company. Several early ventures failed, until the Ford Motor Company of 1903. By October 1908 they had started with production of the Model T. The first, of which over 15 million were built up to the end of its production in May 1927, came out with bought-out steel stampings and a planetary gearbox, and had a one-piece four-cylinder block with a bolt-on head. This was one of the most successful models built by Ford or any other motor manufacturer in the life of the motor car.

Interchangeability of components was an important element in Ford's philosophy. Ford was a pioneer in the use of vanadium steel for engine components. He adopted the principles of Frederick Taylor, the pioneer of time-and-motion study, and installed the world's first moving assembly line for the production of magnetos, started in 1913. He installed blast furnaces at the factory to make his own steel, and he also promoted research and the cultivation of the soya bean, from which a plastic was derived.

In October 1913 he introduced the "Five Dollar Day", almost doubling the normal rate of pay. This was a profit-sharing scheme for his employees and contained an element of a reward for good behaviour. About this time he initiated work on an agricultural tractor, the "Fordson" made by a separate company, the directors of which were Henry and his son Edsel.

In 1915 he chartered the Oscar II, a "peace ship", and with fifty-five delegates sailed for Europe a week before Christmas, docking at Oslo. Their objective was to appeal to all European Heads of State to stop the war. He had hoped to persuade manufacturers to replace armaments with tractors in their production programmes. In the event, Ford took to his bed in the hotel with a chill, stayed there for five days and then sailed for New York and home. He did, however, continue to finance the peace activists who remained in Europe. Back in America, he stood for election to the US Senate but was defeated. He was probably the father of John Dahlinger, illegitimate son of Evangeline Dahlinger, a stenographer employed by the firm and on whom he lavished gifts of cars, clothes and properties. He became the owner of a weekly newspaper, the Dearborn Independent, which became the medium for the expression of many of his more unorthodox ideas. He was involved in a lawsuit with the Chicago Tribune in 1919, during which he was cross-examined on his knowledge of American history: he is reputed to have said "History is bunk". What he actually said was, "History is bunk as it is taught in schools", a very different comment. The lawyers who thus made a fool of him would have been surprised if they could have foreseen the force and energy that their actions were to release. For years Ford employed a team of specialists to scour America and Europe for furniture, artefacts and relics of all kinds, illustrating various aspects of history. Starting with the Wayside Inn from South Sudbury, Massachusetts, buildings were bought, dismantled and moved, to be reconstructed in Greenfield Village, near Dearborn. The courthouse where Abraham Lincoln had practised law and the Ohio bicycle shop where the Wright brothers built their first primitive aeroplane were added to the farmhouse where the proprietor, Henry Ford, had been born. Replicas were made of Independence Hall, Congress Hall and the old City Hall in Philadelphia, and even a reconstruction of Edison's Menlo Park laboratory was installed. The Henry Ford museum was officially opened on 21 October 1929, on the fiftieth anniversary of Edison's invention of the incandescent bulb, but it continued to be a primary preoccupation of the great American car maker until his death.

Henry Ford was also responsible for a number of aeronautical developments at the Ford Airport at Dearborn. He introduced the first use of radio to guide a commercial aircraft, the first regular airmail service in the United States. He also manufactured the country's first all-metal multi-engined plane, the Ford Tri-Motor.

Edsel became President of the Ford Motor Company on his father's resignation from that position on 30 December 1918. Following the end of production in May 1927 of the Model T, the replacement Model A was not in production for another six months. During this period Henry Ford, though officially retired from the presidency of the company, repeatedly interfered and countermanded the orders of his son, ostensibly the man in charge. Edsel, who died of stomach cancer at his home at Grosse Point, Detroit, on 26 May 1943, was the father of Henry Ford II. Henry Ford died at his home, "Fair Lane", four years after his son's death.

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SUBJECT AREA: Textiles

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Robert Owen's father was also called Robert and was a saddler, ironmonger and postmaster of Newtown in Montgomeryshire. Robert, the younger, injured his digestion as a child by drinking some scalding hot "flummery", which affected him for the rest of his life. He developed a passion for reading and through this visited London when he was 10 years old. He started work as a pedlar for someone in Stamford and then went to a haberdasher's shop on old London Bridge in London. Although he found the work there too hard, he stayed in the same type of employment when he moved to Manchester.

In Manchester Owen soon set up a partnership for making bonnet frames, employing forty workers, but he sold the business and bought a spinning machine. This led him in 1790 into another partnership, with James M'Connel and John Kennedy in a spinning mill, but he moved once again to become Manager of Peter Drink-water's mill. These were all involved in fine spinning, and Drinkwater employed 500 people in one of the best mills in the city. In spite of his youth, Owen claims in his autobiography (1857) that he mastered the job within six weeks and soon improved the spinning. This mill was one of the first to use Sea Island cotton from the West Indies. To have managed such an enterprise so well Owen must have had both managerial and technical ability. Through his spinning connections Owen visited Glasgow, where he met both David Dale and his daughter Anne Caroline, whom he married in 1799. It was this connection which brought him to Dale's New Lanark mills, which he persuaded Dale to sell to a Manchester consortium for £60,000. Owen took over the management of the mills on 1 January 1800. Although he had tried to carry out social reforms in the manner of working at Manchester, it was at New Lanark that Owen acquired fame for the way in which he improved both working and living conditions for the 1,500-strong workforce. He started by seeing that adequate food and groceries were available in that remote site and then built both the school and the New Institution for the Formation of Character, which opened in January 1816. To the pauper children from the Glasgow and Edinburgh slums he gave a good education, while he tried to help the rest of the workforce through activities at the Institution. The "silent monitors" hanging on the textile machines, showing the performance of their operatives, are famous, and many came to see his social experiments. Owen was soon to buy out his original partners for £84,000.

Among his social reforms were his efforts to limit child labour in mills, resulting in the Factory Act of 1819. He attempted to establish an ideal community in the USA, to which he sailed in 1824. He was to return to his village of "Harmony" twice more, but broke his connection in 1828. The following year he finally withdrew from New Lanark, where some of his social reforms had been abandoned.

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SUBJECT AREA: Electricity, Ports and shipping

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The youngest son of the Earl of Rosse, he came from a family well known in scientific circles, the six boys growing up in an intellectual atmosphere at Birr Castle, the ancestral home in Ireland, where a forge and large workshop were available to them. Charles, like his brothers, did not go to school but was educated by private tutors of the character of Sir Robert Ball, this type of education being interspersed with overseas holiday trips to France, Holland, Belgium and Spain in the family yacht. In 1871, at the age of 17, he went to Trinity College, Dublin, and after two years he went on to St John's College, Cambridge. This was before the Engineering School had opened, and Parsons studied mechanics and mathematics.

In 1877 he was apprenticed to W.G.Armstrong \& Co. of Elswick, where he stayed for four years, developing an epicycloidal engine that he had designed while at Cambridge. He then moved to Kitson \& Co. of Leeds, where he went half shares in a small experimental shop working on rocket propulsion for torpedoes.

In 1887 he married Katherine Bethell, who contracted rheumatic fever from early-morning outdoor vigils with her husband to watch his torpedo experiments while on their honeymoon! He then moved to a partnership in Clarke, Chapman \& Co. at Gateshead. There he joined the electrical department, initially working on the development of a small, steam-driven marine lighting set. This involved the development of either a low-speed dynamo, for direct coupling to a reciprocating engine, or a high-speed engine, and it was this requirement that started Parsons on the track of the steam turbine. This entailed many problems such as the running of shafts at speeds of up to 40,000 rpm and the design of a DC generator for 18,000 rpm. He took out patents for both the turbine and the generator on 23 April 1884. In 1888 he dissolved his partnership with Clarke, Chapman \& Co. to set up his own firm in Newcastle, leaving his patents with the company's owners. This denied him the use of the axial-flow turbine, so Parsons then designed a radial-flow layout; he later bought back his patents from Clarke, Chapman \& Co. His original patent had included the use of the steam turbine as a means of marine propulsion, and Parsons now set about realizing this possibility. He experimented with 2 ft (61 cm) and 6 ft (183 cm) long models, towed with a fishing line or, later, driven by a twisted rubber cord, through a single-reduction set of spiral gearing.

The first trials of the Turbinia took place in 1894 but were disappointing due to cavitation, a little-understood phenomenon at the time. He used an axial-flow turbine of 2,000 shp running at 2,000 rpm. His work resulted in a far greater understanding of the phenomenon of cavitation than had hitherto existed. Land turbines of up to 350 kW (470 hp) had meanwhile been built. Experiments with the Turbinia culminated in a demonstration which took place at the great Naval Review of 1897 at Spithead, held to celebrate Queen Victoria's Diamond Jubilee. Here, the little Turbinia darted in and out of the lines of heavy warships and destroyers, attaining the unheard of speed of 34.5 knots. The following year the Admiralty placed their first order for a turbine-driven ship, and passenger vessels started operation soon after, the first in 1901. By 1906 the Admiralty had moved over to use turbines exclusively. These early turbines had almost all been direct-coupled to the ship's propeller shaft. For optimum performance of both turbine and propeller, Parsons realized that some form of reduction gearing was necessary, which would have to be extremely accurate because of the speeds involved. Parsons's Creep Mechanism of 1912 ensured that any errors in the master wheel would be distributed evenly around the wheel being cut.

Parsons was also involved in optical work and had a controlling interest in the firm of Ross Ltd of London and, later, in Sir Howard Grubb \& Sons. He he was an enlightened employer, originating share schemes and other benefits for his employees.

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SUBJECT AREA: Architecture and building, Paper and printing

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Perkins's occupation was that of a gold-and silversmith; while he does not seem to have followed this after 1800, however, it gave him the skills in working metals which he would continue to employ in his inventions. He had been working in America for four years before he patented his nail-making machine in 1796. At the time there was a great shortage of nails because only hand-forged ones were available. By 1800, other people had followed his example and produced automatic nail-making machines, but in 1811 Perkins' improved machines were introduced to England by J.C. Dyer. Eventually Perkins had twenty-one American patents for a range of inventions in his name.

In 1799 Perkins invented a system of engraving steel plates for printing banknotes, which became the foundation of modern siderographic work. It discouraged forging and was adopted by many banking houses, including the Federal Government when the Second United States Bank was inaugurated in 1816. This led Perkins to move to Philadelphia. In the intervening years, Perkins had improved his nail-making machine, invented a machine for graining morocco leather in 1809, a fire-engine in 1812, a letter-lock for bank vaults and improved methods of rolling out spoons in 1813, and improved armament and equipment for naval ships from 1812 to 1815.

It was in Philadelphia that Perkins became interested in the steam engine, when he met Oliver Evans, who had pioneered the use of high-pressure steam. He became a member of the American Philosophical Society and conducted experiments on the compressibility of water before a committee of that society. Perkins claimed to have liquified air during his experiments in 1822 and, if so, was the real discoverer of the liquification of gases. In 1819 he came to England to demonstrate his forgery-proof system of printing banknotes, but the Bank of England was the only one which did not adopt his system.

While in London, Perkins began to experiment with the highest steam pressures used up to that time and in 1822 took out his first of nineteen British patents. This was followed by another in 1823 for a 10 hp (7.5 kW) engine with only 2 in. (51 mm) bore, 12 in. (305 mm) stroke but a pressure of 500 psi (35 kg/cm²), for which he claimed exceptional economy. After 1826, Perkins abandoned his drum boiler for iron tubes and steam pressures of 1,500 psi (105 kg/cm²), but the materials would not withstand such pressures or temperatures for long. It was in that same year that he patented a form of uniflow cylinder that was later taken up by L.J. Todd. One of his engines ran for five days, continuously pumping water at St Katherine's docks, but Perkins could not raise more finance to continue his experiments.

In 1823 one his high-pressure hot-water systems was installed to heat the Duke of Wellington's house at Stratfield Saye and it acquired a considerable vogue, being used by Sir John Soane, among others. In 1834 Perkins patented a compression ice-making apparatus, but it did not succeed commercially because ice was imported more cheaply from Norway as ballast for sailing ships. Perkins was often dubbed "the American inventor" because his inquisitive personality allied to his inventive ingenuity enabled him to solve so many mechanical challenges.

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SUBJECT AREA: Metallurgy, Mining and extraction technology

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Robert, the son of Thomas and Ada (Crooks) Stanley, helped to finance his early training at the Stevens Institute of Technology, Hoboken, New Jersey, by working as a manual training instructor at Montclair High School. After graduating in mechanical engineering from Stevens in 1899, and as a mining engineer from the Columbia School of Mines in 1901, he accepted a two-year assignment from the S.S.White Dental Company to investigate platinum-bearing alluvial deposits in British Columbia. This introduced him to the International Nickel Company (Inco), which had been established on 29 March 1902 to amalgamate the major mining companies working the newly discovered cupro-nickel deposits at Sudbury, Ontario. Ambrose Monell, President of Inco, appointed Stanley as Assistant Superintendent of its American Nickel Works at Camden, near Philadelphia, in 1903. At the beginning of 1904 Stanley was General Superintendent of the Orford Refinery at Bayonne, New Jersey, where most of the output of the Sudbury mines was treated.

Copper and nickel were separated there from the bessemerized matte by the celebrated "tops and bottoms" process introduced thirteen years previously by R.M.Thompson. It soon occurred to Stanley that such a separation was not invariably required and that, by reducing directly the mixed matte, he could obtain a natural cupronickel alloy which would be ductile, corrosion resistant, and no more expensive to produce than pure copper or nickel. His first experiment, on 30 December 1904, was completely successful. A railway wagon full of bessemerized matte, low in iron, was calcined to oxide, reduced to metal with carbon, and finally desulphurized with magnesium. Ingots cast from this alloy were successfully forged to bars which contained 68 per cent nickel, 23 per cent copper and about 1 per cent iron. The new alloy, originally named after Ambrose Monell, was soon renamed Monel to satisfy trademark requirements. A total of 300,000 ft2 (27,870 m²) of this white, corrosion-resistant alloy was used to roof the Pennsylvania Railway Station in New York, and it also found extensive applications in marine work and chemical plant. Stanley greatly increased the output of the Orford Refinery during the First World War, and shortly after becoming President of the company in 1922, he established a new Research and Development Division headed initially by A.J.Wadham and then by Paul D. Merica, who at the US Bureau of Standards had first elucidated the mechanism of age-hardening in alloys. In the mid- 1920s a nickel-ore body of unprecedented size was identified at levels between 2,000 and 3,000 ft (600 and 900 m) below the Frood Mine in Ontario. This property was owned partially by Inco and partially by the Mond Nickel Company. Efficient exploitation required the combined economic resources of both companies. They merged on 1 January 1929, when Mond became part of International Nickel. Stanley remained President of the new company until February 1949 and was Chairman from 1937 until his death.

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SUBJECT AREA: Steam and internal combustion engines

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The sixth child of James Watt, merchant and general contractor, and Agnes Muirhead, Watt was a weak and sickly child; he was one of only two to survive childhood out of a total of eight, yet, like his father, he was to live to an age of over 80. He was educated at local schools, including Greenock Grammar School where he was an uninspired pupil. At the age of 17 he was sent to live with relatives in Glasgow and then in 1755 to London to become an apprentice to a mathematical instrument maker, John Morgan of Finch Lane, Cornhill. Less than a year later he returned to Greenock and then to Glasgow, where he was appointed mathematical instrument maker to the University and was permitted in 1757 to set up a workshop within the University grounds. In this position he came to know many of the University professors and staff, and it was thus that he became involved in work on the steam engine when in 1764 he was asked to put in working order a defective Newcomen engine model. It did not take Watt long to perceive that the great inefficiency of the Newcomen engine was due to the repeated heating and cooling of the cylinder. His idea was to drive the steam out of the cylinder and to condense it in a separate vessel. The story is told of Watt's flash of inspiration as he was walking across Glasgow Green one Sunday afternoon; the idea formed perfectly in his mind and he became anxious to get back to his workshop to construct the necessary apparatus, but this was the Sabbath and work had to wait until the morrow, so Watt forced himself to wait until the Monday morning.

Watt designed a condensing engine and was lent money for its development by Joseph Black, the Glasgow University professor who had established the concept of latent heat. In 1768 Watt went into partnership with John Roebuck, who required the steam engine for the drainage of a coal-mine that he was opening up at Bo'ness, West Lothian. In 1769, Watt took out his patent for "A New Invented Method of Lessening the Consumption of Steam and Fuel in Fire Engines". When Roebuck went bankrupt in 1772, Matthew Boulton, proprietor of the Soho Engineering Works near Birmingham, bought Roebuck's share in Watt's patent. Watt had met Boulton four years earlier at the Soho works, where power was obtained at that time by means of a water-wheel and a steam engine to pump the water back up again above the wheel. Watt moved to Birmingham in 1774, and after the patent had been extended by Parliament in 1775 he and Boulton embarked on a highly profitable partnership. While Boulton endeavoured to keep the business supplied with capital, Watt continued to refine his engine, making several improvements over the years; he was also involved frequently in legal proceedings over infringements of his patent.

In 1794 Watt and Boulton founded the new company of Boulton \& Watt, with a view to their retirement; Watt's son James and Boulton's son Matthew assumed management of the company. Watt retired in 1800, but continued to spend much of his time in the workshop he had set up in the garret of his Heathfield home; principal amongst his work after retirement was the invention of a pantograph sculpturing machine.

James Watt was hard-working, ingenious and essentially practical, but it is doubtful that he would have succeeded as he did without the business sense of his partner, Matthew Boulton. Watt coined the term "horsepower" for quantifying the output of engines, and the SI unit of power, the watt, is named in his honour.

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actual storage вчт. физическая память archival storage вчт. архивное ЗУ background storage вчт. поддерживающее запоминающее устройство backing storage вчт. внешняя память backing storage вчт. поддерживающее запоминающее устройство buffer storage вчт. буферная память buffer storage вчт. буферное запоминающее устройство buffer storage вчт. буферное ЗУ bulk storage вчт. внешняя память bulk storage хранение навалочного груза bulk storage хранение насыпного груза central storage вчт. центральная память central storage вчт. центральное запоминающее устройство circulating storage вчт. динамическое запоминающее устройство circulating storage вчт. запоминающее устройство динамического типа control storage вчт. управляющая память core storage запоминающее устройство на магнитных сердечниках core storage оперативное запоминающее устройство cyclic storage динамическое запоминающее устройство cyclic storage вчт. запоминающее устройство динамического типа cyclic storage склад с периодическим пополнением запасов data storage вчт. хранение данных direct access storage вчт. запоминающее устройство с прямым доступом direct-access storage device вчт. запоминающее устройство прямого доступа disk storage вчт. дисковая память disk storage вчт. запоминающее устройство на дисках disk storage вчт. накопитель на дисках erasable storage вчт. стираемое запоминающее устройство external storage вчт. внешнее запоминающее устройство information storage вчт. хранение информации internal storage вчт. внутреннее запоминающее устройство internal storage вчт. оперативное запоминающее устройство main storage вчт. оперативная память main storage вчт. оперативное запоминающее устройство main storage вчт. основная память main storage вчт. основное запоминающее устройство mass storage вчт. массовая память nesting storage вчт. аппаратный стек off-line storage вчт. автономное ЗУ over-year storage хранение в течение года peripheral storage вчт. внешняя память permanent storage вчт. постоянное запоминающее устройство permanent storage вчт. энергонезависимое запоминающее устройство primary storage вчт. основная память public storage вчт. общедоступное ЗУ real storage вчт. основная память secondary storage вчт. внешняя память secondary storage comp. вспомогательное запоминающее устройство secure storage вчт. память модуля обеспечения надежности sequential-access storage вчт. память с последовательным доступом shelf storage хранение готовой продукции на складе standby storage хранение в запасе второй очереди storage емкость склада storage вчт. запоминание storage запоминающее устройство, память (вычислительной машины) storage comp. запоминающее устройство storage comp. накопитель storage вчт. накопитель storage накопление; аккумулирование storage вчт. память storage плата за хранение storage плата за хранение в холодильнике или на складе storage площадь склада storage склад, хранилище storage склад storage складирование storage складированный товар storage складские расходы storage складское дело storage стоимость хранения storage хранение, складирование storage хранение storage хранилище, склад storage хранилище temporary storage вчт. временное запоминающее устройство temporary storage вчт. запоминающее устройство для временного хранения информации temporary storage вчт. рабочая память virtual storage вчт. виртуальная память volatile storage вчт. запоминающее устройство с разрушением информации при выключении электропитания volatile storage память с разрушением информации при выключении электропитания volatile storage энергозависимая память volatile storage вчт. энергозависимое запоминающее устройство working storage вчт. оперативное запоминающее устройство working storage вчт. рабочее запоминающее устройство zero-access storage вчт. сверхбыстродействующая память