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121 Bentley, John Francis
SUBJECT AREA: Architecture and building[br]b. 30 January 1839 Doncaster, Yorkshire, Englandd. 2 March 1902 Clapham, London, England[br]English architect who specialized chiefly in ecclesiastical building, especially Roman Catholic churches.[br]Bentley's work was of high quality, particularly with regard to the decorative materials and finish. Notable among his churches was the Church of the Holy Rood (begun in 1887) at Watford, which is in Gothic Revival style, with fine decorative materials.Bentley's chef-d'oeuvre is the Roman Catholic Cathedral of Westminster in London: begun in 1895, the shell was completed in 1903. He based the banded pattern of the exterior upon the Italian medieval cathedrals of Siena and Orvieto, but at Westminster the banding is in red brick and white stone instead of marble. The cathedral interior is Byzantine in style, with pendentive construction. Built of load-bearing brick, with the saucer domes inside being made of concrete strengthened with brick inserts, there is no steel reinforcement: in choosing this type of structural material, Bentley was more closely following ancient Roman technology than modern use of concrete. The intention was to have all surfaces clad in mosaic of marble, but sadly only a portion of this has yet been achieved.[br]Principal Honours and DistinctionsBentley was nominated in 1902 to receive the RIBA Gold Medal but died before the presentation ceremony.Further ReadingW.de l'Hopital, 1919, Westminster Cathedral and its Architect, Hutchinson.DY -
122 Bodmer, Johann Georg
SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering, Railways and locomotives, Steam and internal combustion engines, Textiles, Weapons and armour[br]b. 9 December 1786 Zurich, Switzerlandd. 30 May 1864 Zurich, Switzerland[br]Swiss mechanical engineer and inventor.[br]John George Bodmer (as he was known in England) showed signs of great inventive ability even as a child. Soon after completing his apprenticeship to a local millwright, he set up his own work-shop at Zussnacht. One of his first inventions, in 1805, was a shell which exploded on impact. Soon after this he went into partnership with Baron d'Eichthal to establish a cotton mill at St Blaise in the Black Forest. Bodmer designed the water-wheels and all the machinery. A few years later they established a factory for firearms and Bodmer designed special machine tools and developed a system of interchangeable manufacture comparable with American developments at that time. More inventions followed, including a detachable bayonet for breech-loading rifles and a rifled, breech-loading cannon for 12 lb (5.4 kg) shells.Bodmer was appointed by the Grand Duke of Baden to the posts of Director General of the Government Iron Works and Inspector of Artillery. He left St Blaise in 1816 and entered completely into the service of the Grand Duke, but before taking up his duties he visited Britain for the first time and made an intensive five-month tour of textile mills, iron works, workshops and similar establishments.In 1821 he returned to Switzerland and was engaged in setting up cotton mills and other engineering works. In 1824 he went back to England, where he obtained a patent for his improvements in cotton machinery and set up a mill near Bolton incorporating his ideas. His health failing, he was obliged to return to Switzerland in 1828, but he was soon busy with engineering works there and in France. In 1833 he went to England again, first to Bolton and four years later to Manchester in partnership with H.H.Birley. In the next ten years he patented many more inventions in the fields of textile machinery, steam engines and machine tools. These included a balanced steam engine, a mechanical stoker, steam engine valve gear, gear-cutting machines and a circular planer or vertical lathe, anticipating machines of this type later developed in America by E.P. Bullard. The metric system was used in his workshops and in gearing calculations he introduced the concept of diametral pitch, which then became known as "Manchester Pitch". The balanced engine was built in stationary form and in two locomotives, but although their running was remarkably smooth the additional complication prevented their wider use.After the death of H.H.Birley in 1846, Bodmer removed to London until 1848, when he went to Austria. About 1860 he returned to his native town of Zurich. He remained actively engaged in all kinds of inventions up to the end of his life. He obtained fourteen British patents, each of which describes many inventions; two of these patents were extended beyond the normal duration of fourteen years. Two others were obtained on his behalf, one by his brother James in 1813 for his cannon and one relating to railways by Charles Fox in 1847. Many of his inventions had little direct influence but anticipated much later developments. His ideas were sound and some of his engines and machine tools were in use for over sixty years. He was elected a Member of the Institution of Civil Engineers in 1835.[br]Bibliography1845, "The advantages of working stationary and marine engines with high-pressure steam, expansively and at great velocities; and of the compensating, or double crank system", Minutes of the Proceedings of the Institution of Civil Engineers 4:372–99.1846, "On the combustion of fuel in furnaces and steam-boilers, with a description of Bodmer's fire-grate", Minutes of the Proceedings of the Institution of Civil Engineers 5:362–8.Further ReadingObituary, 1868–9, Minutes of the Proceedings of the Institution of Civil Engineers 28:573–608.H.W.Dickinson, 1929–30, "Diary of John George Bodmer, 1816–17", Transactions of the Newcomen Society 10:102–14.D.Brownlie, 1925–6, John George Bodmer, his life and work, particularly in relation to the evolution of mechanical stoking', Transactions of the Newcomen Society 6:86–110.W.O.Henderson (ed.), 1968, Industrial Britain Under the Regency: The Diaries of Escher, Bodmer, May and de Gallois 1814–1818, London: Frank Cass (a more complete account of his visit to Britain).RTS -
123 Borsig, Johann Carl Friedrich August
[br]b. 25 June 1804 Breslau, Germany (now Wroclaw, Poland)d. 7 July 1854 Berlin, Germany[br]German pioneer manufacturer of locomotives and rails.[br]Borsig established a small works at Berlin in 1837 that ten years later had expanded sufficiently to employ 1,200 people. In that year it produced sixty-seven locomotives. Borsig copied the long-boiler type then popular in Britain and which had been exported to Germany by British manufacturers: it became the standard goods engine in Germany for many years, and the name Borsig became one of the famous names of locomotive building. In 1847 Borsig established an iron-works near Berlin that from 1851 started to produce good-quality rails; German railways previously had to import these from Britain.[br]Further ReadingJ.Marshall, 1978, A Biographical Dictionary of Railway Engineers, Newton Abbot: David \& Charles.PJGRBiographical history of technology > Borsig, Johann Carl Friedrich August
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124 Bosch, Robert August
[br]b. 23 September 1861 Albeck, near Ulm, Germanyd. 9 March 1942 Stuttgart, Germany[br]German engineer, industrialist and pioneer of internal combustion engine electrical systems.[br]Robert was the eighth of twelve children of the landlord of a hotel in the village of Albeck. He wanted to be a botanist and zoologist, but at the age of 18 he was apprenticed as a precision mechanic. He travelled widely in the south of Germany, which is unusual for an apprenticeship. In 1884, he went to the USA, where he found employment with Thomas A. Edison and his colleague, the German electrical engineer Siegmund Bergmann. During this period he became interested and involved in the rights of workers.In 1886 he set up his own workshop in Stuttgart, having spent a short time with Siemens in England. He built up a sound reputation for quality, but the firm outgrew its capital and in 1892 he had to sack nearly all his employees. Fortunately, among the few that he was able to retain were Arnold Zähringer, who later became Manager, and an apprentice, Gottlieb Harold. These two, under Bosch, were responsible for the development of the low-tension (1897) and the high-tension (1902) magneto. They also developed the Bosch sparking plug, again in 1902. The distributor for multi-cylinder engines followed in 1910. These developments, with a strong automotive bias, were stimulated by Bosch's association with Frederick Simms, an Englishman domiciled in Hamburg, who had become a director of Daimler in Canstatt and had secured the UK patent rights of the Daimler engine. Simms went on to invent, in about 1898, a means of varying ignition timing with low-tension magnetos.It must be emphasized, as pointed out above, that the invention of neither type of magneto was due to Bosch. Nikolaus Otto introduced a crude low-tension magneto in 1884, but it was not patented in Germany, while the high-tension magneto was invented by Paul Winand, a nephew of Otto's partner Eugen Langen, in 1887, this patent being allowed to lapse in 1890.Bosch's social views were advanced for his time. He introduced an eight-hour day in 1906 and advocated industrial arbitration and free trade, and in 1932 he wrote a book on the prevention of world economic crises, Die Verhütung künftiger Krisen in der Weltwirtschaft. Other industrialists called him the "Red Bosch" because of his short hours and high wages; he is reputed to have replied, "I do not pay good wages because I have a lot of money, I have a lot of money because I pay good wages." The firm exists to this day as the giant multi-national company Robert Bosch GmbH, with headquarters still in Stuttgart.[br]Further ReadingT.Heuss, 1994, Robert Bosch: His Life and Achievements (trans. S.Gillespie and J. Kapczynski), New York: Henry Holt \& Co.JB -
125 Bouton, Georges Thadé
SUBJECT AREA: Automotive engineering[br]b. 22 November 1847 Paris, Franced. November 1938[br]French pioneer in automobile manufacture.[br]Bouton was the son of a painter and learned mechanics at Honfleur and Paris. In 1870 he was fighting in Les Mobiles de Calvados, and in 1881, having finished his training, he joined his brother-in-law, Trepardoux, to open a workshop in rue de la Chapelle for the construction of steam engines for scientific toys. The comte de Dion discovered the workshop and became associated with it in 1882. They also built steam-boilers for automobiles. In 1883 they built their first quadricycle, and in 1887 their first steam tricycle. These were followed in 1892 and 1893 by a car and a steam tractor. After the appearance of the petrol engine they put in hand a star-shaped four-cylinder engine of this type, but it was not until 1895 and 1898 that the first de Dion-Bouton single-cylinder tricycle and their petrol bicycle, respectively, came out. From 1899 the manufacture of de Dion-Bouton was concentrated on the voiturette. Georges Bouton was responsible for the manufacture of all these machines and took part in the first motor races.[br]Further Reading1933, Dictionnaire de biographie française.IMcN -
126 Brandt, Alfred
SUBJECT AREA: Mining and extraction technology[br]b. 3 September 1846 Hamburg, Germanyd. 29 November 1899 Brig, Switzerland[br]German mechanical engineer, developer of a hydraulic rock drill.[br]The son of a Hamburg merchant, he studied mechanical engineering at the Polytechnikum in Zurich and was engaged in constructing a railway line in Hungary and Austria before he returned to Switzerland. At Airolo, where the Gotthard tunnel was to commence, he designed a hydraulic rock drill; the pneumatic ones, similar to the Ingersoll type, did not satisfy him. His drill consisted of two parts instead of three: the hydraulic motor and the installation for drilling. At the Sulzer company of Winterthur his first design, a percussion drill, in 1876, was developed into a rotary drill which worked with greatest success in the construction of various railway tunnels and also helped to reduce costs in the mining industry.His Hamburg-based firm Brandt \& Brandau consequently was soon engaged in many tunnelling and mining projects throughout Germany, as well as abroad. During the years 1883 and 1895 Brandt spent time in exploration in Spain and reopening the lead-mines in Posada. His most ambitious task was to co-operate in drafting the Simplon tunnel, the construction of which relied greatly on his knowledge and expertise. The works began several years behind schedule, in 1898, and consequently he was unable to see its completion.[br]Bibliography1877, "Beschreibung und Abbildung der Brandtschen Bohrmaschine", Eisenbahn 7 (13).Further ReadingC.Matschoss, 1925, Manner der Technik, Berlin.G.E.Lucas, 1926, Der Tunnel. Anlage und Bau, Vol. 2, Berlin, pp. 49–55 (deals with his achievements in the construction of tunnels).WK -
127 Breguet, Louis
SUBJECT AREA: Aerospace[br]b. 2 January 1880 Paris, Franced. 4 May 1955 Paris, France[br]French aviation pioneer who built a helicopter in 1907 and designed many successful aircraft.[br]The Breguet family had been manufacturing fine clocks since before the French Revolution, but Louis Breguet and his brother Jacques used their mechanical skills to produce a helicopter, or "gyroplane" as they named it. It was a complex machine with four biplane rotors (i.e. thirty-two lifting surfaces). Louis Breguet had carried out many tests to determine the most suitable rotor design. The Breguet brothers were assisted by Professor Charles Richet and the Breguet-Richet No. 1 was tested in September 1907 when it succeeded in lifting itself, and its pilot, to a height of 1.5 metres. Unfortunately, the gyroplane was rather unstable and four helpers had to steady it; consequently, the flight did not qualify as a "free" flight. This was achieved two months later, also in France, by Paul Cornu who made a 20-second free flight.Louis Breguet turned his attention to aeroplane design and produced a tractor biplane when most other biplanes followed the Wright brothers' layout with a forward elevator and pusher propeller. The Breguet I made quite an impression at the 1909 Reims meeting, but the Breguet IV created a world record the following year by carrying six people. During the First World War the Breguet Type 14 bomber was widely used by French and American squadrons. Between the First and Second World Wars a wide variety of designs were produced, including flying boats and another helicopter, the Breguet- Dorand Gyroplane which flew for over one hour in 1936. The Breguet company survived World War II and in the late 1940s developed a successful four-engined airliner/transport, the Deux-Ponts, which had a bulbous double-deck fuselage.Breguet was an innovative designer, although his designs were functional rather than elegant. He was an early advocate of metal construction and developed an oleo- (oil-spring) undercarriage leg.[br]Bibliography1925, Le Vol à voile dynamique des oiseaux. Analyse des effets des pulsations du vent sur la résultante aérodynamique moyenne d'un planeur, Paris.Further ReadingP.Faure, 1938, Louis Breguet, Paris (biography).C.H.Gibbs-Smith, 1965, The Invention of the Aeroplane 1799–1909, London (provides a careful analysis of Breguet's early aircraft).JDS -
128 Brown, Andrew
SUBJECT AREA: Ports and shipping[br]b. October 1825 Glasgow, Scotlandd. 6 May 1907 Renfrew, Scotland[br]Scottish engineer and specialist shipbuilder, dredge-plant authority and supplier.[br]Brown commenced his apprenticeship on the River Clyde in the late 1830s, working for some of the most famous marine engineering companies and ultimately with the Caledonian Railway Company. In 1850 he joined the shipyard of A. \& J.Inglis Ltd of Partick as Engineering Manager; during his ten years there he pioneered the fitting of link-motion valve gear to marine engines. Other interesting engines were built, all ahead of their time, including a three-cylinder direct-acting steam engine.His real life's work commenced in 1860 when he entered into partnership with the Renfrew shipbuilder William Simons. Within one year he had designed the fast Clyde steamer Rothesay Castle, a ship less than 200 ft (61 m) long, yet which steamed at c.20 knots and subsequently became a notable American Civil War blockade runner. At this time the company also built the world's first sailing ship with wire-rope rigging. Within a few years of joining the shipyard on the Cart (a tributary of the Clyde), he had designed the first self-propelled hopper barges built in the United Kingdom. He then went on to design, patent and supervise the building of hopper dredges, bucket ladder dredges and sand dredges, which by the end of the century had capacity of 10,000 tons per hour. In 1895 they built an enclosed hopper-type ship which was the prototype of all subsequent sewage-dumping vessels. Typical of his inventions was the double-ended screw-elevating deck ferry, a ship of particular value in areas where there is high tidal range. Examples of this design are still to be found in many seaports of the world. Brown ultimately became Chairman of Simons shipyard, and in his later years took an active part in civic affairs, serving for fifteen years as Provost of Renfrew. His influence in establishing Renfrew as one of the world's centres of excellence in dredge design and building was considerable, and he was instrumental in bringing several hundred ship contracts of a specialist nature to the River Clyde.[br]Principal Honours and DistinctionsVice-President, Institution of Engineers and Shipbuilders in Scotland.BibliographyA Century of Shipbuilding 1810 to 1910, Renfrew: Wm Simons.Further ReadingF.M.Walker, 1984, Song of the Clyde. A History of Clyde Shipbuilding, Cambridge.FMW
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