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1 Soane, Sir John
SUBJECT AREA: Architecture and building[br]b. 20 September 1753 Whitchurch, Englandd. 20 January 1837 London, England[br]English architect whose highly personalized architectural style foreshadowed the modern architecture of a century later.[br]Between 1777 and 1780 Soane studied in Italy on a Travelling Scholarship, working in Rome but also making extensive excursions further south to Paestum and Sicily to study the early and more severely simple Greek temples there.His architectural career began in earnest with his appointment as Surveyor to the Bank of England in 1788. He held this post until 1833 and during this time developed his highly individual style, which was based upon a wide range of classical sources extending from early Greek to Byzantine themes. His own work became progressively more linear and austere, his domes and arches shallower and more segmental. During the 1790s and early 1800s Soane redesigned several halls in the Bank, notably the Bank Stock Office, which in 1791 necessitated technological experimentation.The redesigning was required because of security problems which limited window openings to high-level positions and a need for fireproof construction because the site was so restricted. Soane solved the difficulties by introducing light through lunettes set high in the walls and through a Roman-style oculus in the centrally placed shallow dome. He utilized hollow terracotta pots as a lightweight material in the segmental vaulting.Sadly, the majority of Soane's work in the Bank interior was lost in the rebuilding during the 1930s, but Soane went on to develop his architectural style in his houses and churches as well as in a quantity of public buildings in Whitehall and Westminster.[br]Principal Honours and DistinctionsKnighted 1831. Fellow Society of Antiquaries 1795. RA 1802. Royal Academy Professor of Architecture 1806. FRS 1821.Further ReadingSir John Summerson, 1952, Sir John Soane, 1753–1837, Art and Technics. Dorothy Stroud, 1961, The Architecture of Sir John Soane, Studio.DY -
2 Coade, Eleanor
SUBJECT AREA: Architecture and building[br]b. 24 June 1733 Exeter, Devon, Englandd. 18 November 1821 Camberwell, London, England[br]English proprietor of the Coade Factory, making artificial stone.[br]Born Elinor Coade, she never married but adopted, as was customary in business in the eighteenth century, the courtesy title of Mrs. Following the bankruptcy and death of her father, George Coade, in Exeter, Eleanor and her mother (also called Eleanor) moved to London and founded the works at Lambeth, South London, in 1769 that later became famous as the Coade factory. The factory was located at King's Arms Stairs, Narrow Wall. During the eighteenth century, several attempts had been made in other businesses to manufacture a durable, malleable artificial stone that would be acceptable to architects for decorative use. These substances were not very successful, but Coade stone was different. Although stories are legion about the secret formula supposedly used in this artificial stone, modern methods have established the exact formula.Coade stone was a stoneware ceramic material fired in a kiln. The body was remarkable in that it shrank only 8 per cent in drying and firing: this was achieved by using a combination of china clay, sand, crushed glass and grog (i.e. crushed and ground, previously fired stoneware). The Coade formula thus included a considerable proportion of material that, having been fired once already, was unshrinkable. Mrs Coade's name for the firm, Coade's Lithodipyra Terra-Cotta or Artificial Stone Manufactory (where "Lithodipyra" is a term derived from three Greek words meaning "stone", "twice" and "fire"), made reference to the custom of including such material (such as in Josiah Wedgwood's basalt and jasper ware). The especially low rate of shrinkage rendered the material ideal for making extra-life-size statuary, and large architectural, decorative features to be incorporated into stone buildings.Coade stone was widely used for such purposes by leading architects in Britain and Ireland from the 1770s until the 1830s, including Robert Adam, Sir Charles Barry, Sir William Chambers, Sir John Soane, John Nash and James Wyatt. Some architects introduced the material abroad, as far as, for example, Charles Bulfinch's United States Bank in Boston, Massachusetts, and Charles Cameron's redecoration for the Empress Catherine of the great palace Tsarkoe Selo (now Pushkin), near St Petersburg. The material so resembles stone that it is often mistaken for it, but it is so hard and resistant to weather that it retains sharpness of detail much longer than the natural substance. The many famous British buildings where Coade stone was used include the Royal Hospital, Chelsea, Carlton House and the Sir John Soane Museum (all of which are located in London), St George's Chapel at Windsor, Alnwick Castle in Northumberland, and Culzean Castle in Ayrshire, Scotland.Apart from the qualities of the material, the Coade firm established a high reputation for the equally fine quality of its classical statuary. Mrs Coade employed excellent craftsmen such as the sculptor John Bacon (1740–99), whose work was mass-produced by the use of moulds. One famous example which was widely reproduced was the female caryatid from the south porch of the Erechtheion on the acropolis of Athens. A drawing of this had appeared in the second edition of Stuart and Revett's Antiquities of Athens in 1789, and many copies were made from the original Coade model; Soane used them more than once, for example on the Bank of England and his own houses in London.Eleanor Coade was a remarkable woman, and was important and influential on the neo-classical scene. She had close and amicable relations with leading architects of the day, notably Robert Adam and James Wyatt. The Coade factory was enlarged and altered over the years, but the site was finally cleared during 1949–50 in preparation for the establishment of the 1951 Festival of Britain.[br]Further ReadingA.Kelly, 1990, Mrs Coade's Stone, pub. in conjunction with the Georgian Group (an interesting, carefully written history; includes a detailed appendix on architects who used Coade stone and buildings where surviving work may be seen).DY -
3 Perkins, Jacob
[br]b. 9 July 1766 Newburyport, Massachusetts, USAd. 30 July 1849 London, England[br]American inventor of a nail-making machine and a method of printing banknotes, investigator of the use of steam at very high pressures.[br]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.[br]Further ReadingHistorical Society of Pennsylvania, 1943, biography which appeared previously as a shortened version in the Transactions of the Newcomen Society 24.D.Bathe and G.Bathe, 1943–5, "The contribution of Jacob Perkins to science and engineering", Transactions of the Newcomen Society 24.D.S.L.Cardwell, 1971, From Watt to Clausius. The Rise of Thermodynamics in the Early Industrial Age, London: Heinemann (includes comments on the importance of Perkins's steam engine).A.F.Dufton, 1940–1, "Early application of engineering to warming of buildings", Transactions of the Newcomen Society 21 (includes a note on Perkins's application of a high-pressure hot-water heating system).RLH
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