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21 Salomans, Sir David Lionel
SUBJECT AREA: Automotive engineering, Domestic appliances and interiors, Electricity, Land transport[br]b. 1851d. 1925[br]English pioneer of electricity and the automobile in England.[br]Salomans inherited his baronetcy from his uncle, Sir David Salomans (1797–1873), who had been Member of Parliament for Greenwich and the first Jewish Lord Mayor of London. He was the archetypal amateur engineer and inventor of the Victorian age, indulging in such interests as photography, motoring, electricity, woodworking, polariscopy and astronomy. His house, "Broomhill", near Tun bridge Wells in Kent, was one of the first to be lit by electricity and is said to have been the first to use electricity for cooking. He acted as architect for the building of the stables, the water tower and the 150-seat theatre at his home. In 1874 he was granted a patent for an automatic railway signalling system. He was the founder in 1895 of the first motoring organization in Great Britain, the Self Propelled Traffic Association, forerunner of the Royal Automobile Club (RAC). He was also the organizer of the first motor show to be held in Britain, on 15 October 1895. It is said that, in spite of being the Mayor of Tunbridge Wells, Salomans defied the law and drove without the obligatory pedestrian with a red flag preceding his vehicle; this requirement was removed with the later Light (Road) Locomotives Act, which raised the speed limit to 12 mph (19 km/h).[br]Further ReadingVarious papers may be consulted from the Sir David Salomans Society. See also Simms, Frederick.IMcNBiographical history of technology > Salomans, Sir David Lionel
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22 Winsor, Frederick Albert
SUBJECT AREA: Public utilities[br]b. 1763 Brunswick, Germanyd. 11 May 1830 Paris, France[br]German pioneer of gas lighting,[br]He was born Frederic Albrecht Winzer but anglicized his name after settling in England. His interest in gas lighting was aroused by the experiments of Philippe Lebon in Paris in 1802. Winsor had little scientific knowledge or engineering ability, but was well endowed with confidence and enterprise. He alone among the early practitioners of gas-making envisaged a central plant supplying a number of users through gas mains. He managed to discover the essentials of Lebon's process and tried without success to exploit it on the European continent. So he moved to England in 1803 and settled first in Grosvenor Square and then in Pall Mall. He gave public demonstrations of gas lighting at the Lyceum Theatre in London and in 1804 took out his first patent. In December he lit Pall Mall, the first street to be illuminated by gas. Winsor then began to promote a grandiose scheme for the formation of a National Light and Heat Company. He struggled against bitter opposition both in and out of Parliament to obtain sanction for his company, and it was only after the third attempt that the Gas Light \& Coke Company received its charter in 1812. However, Winsor lacked the knowledge to devise successful gas-producing plant, even with the help of the German immigrant chemist F.C.Accum. Winsor was dismissed in 1812 and returned to Paris the following year, while the company recovered with the appointment of an able engineer, Samuel Clegg. Winsor formed a company in Paris to install gas lighting, but that failed in 1819.[br]Further ReadingW.Matthew, 1827, An Historical Sketch of the Origin, Progress and Present State of Gaslighting, London.E.G.Stewart, 1958, Town Gas, Its Manufacture and Distribution, London: Science Museum.LRDBiographical history of technology > Winsor, Frederick Albert
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23 Zonca, Vittorio
[br]b. c. 1568 Italyd. 1603 Italy[br]Italian architect who wrote a book on machines.[br]All that is known of Zonca is included on the frontispiece of the book that is his only claim to fame. He is there described as architect to the "Magnificent Community of Padua". He compiled a book on machines entitled Novo teatro de machine ed edificii (New Display of Machines and Edifices), illustrated with numerous fine engravings. It was printed in Padua in 1607, four years after his death, by Francesco Bertelli, who said of the book that it "came into my hands", as though he knew nothing of the author.During the sixteenth and early seventeenth centuries, a number of illustrated books on technical subjects appeared, compiled by knowledgeable and educated authors. These books greatly helped the spread of information about the technical arts throughout Europe. There were several books on mechanical devices, notably those by Ramelli, Besson and Zonca. In some ways, Zonca's is the most interesting, for it seems closest to the mechanical practice of the time. Several of the machines he describes are referred to as being in use in Padua or Venice and he suggests ways of improving them. The range of machines is wider than in other similar works and includes pumps, cranes, powder mills, printing and bookbinding presses and textile machines. Perhaps the most interesting of these is the water-driven silk-threading machine, since some of its components resemble those in use in the twentieth century. Spinning mills were widely used in the silk industry in sixteenth-century Italy, and Zonca offers a full description of one. He also shows the first example of an oblique treadwheel, driven by oxen for the grinding of grain. Even so, despite all the practical detail, the book ends, like others of its kind, with fantasy, in a description of a perpetual-motion machine.[br]Further ReadingA.G.Keller, 1964, A Theatre of Machines, London: Chapman \& Hall (provides brief details and illustrations from the books by Ramelli, Besson and Zonca).LRD
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