. Bulletin. Science. Figure g.—Demonstration of the new electric liglit during a visit of Queen Victoria and Prince Albert to Dublin, Ireland. From Illustrated London News, August ii, 1849, vol. 15' P- 96-. invention after the death of his partner but without any signs of permanent success.'^ Then, in 1857, Victor Serrin invented a regulator based on some of the best features of that of Duboscq, and it dominated the field for two decades in France and elsewhere (fig. 16).^'' Further refinements made in 1859 produced le modele Suisse (fig. 17) that proved its superiority over all ;
. Bulletin. Science. Figure g.—Demonstration of the new electric liglit during a visit of Queen Victoria and Prince Albert to Dublin, Ireland. From Illustrated London News, August ii, 1849, vol. 15' P- 96-. invention after the death of his partner but without any signs of permanent success.'^ Then, in 1857, Victor Serrin invented a regulator based on some of the best features of that of Duboscq, and it dominated the field for two decades in France and elsewhere (fig. 16).^'' Further refinements made in 1859 produced le modele Suisse (fig. 17) that proved its superiority over all ; The heart of its reliability rested in the tjse of two driving systems balanced against one another through a linkage in the 13British patent 2456 (October 20, 1856); Edmond Becquerel, "Rapport sur un regulateur electrique et sur une lampe photo-electrique presentes par MM. Lacassagne et Thiers de Lyons," Bulletin de la Societe d'Encouragement pour Vlnduslrie Mationale,iS56, ser. 2, vol. 3, p. 672, and 1857, ser. 2, vol. 4, pp. 524-547; Du Moncel, op. cit. (footnote 5), vol. 3, pp. 234-239; vol. 4, pp. 504-506; Cosmos, 1856, vol. 9, pp. 365- 368; 1857, vol. 10, pp. 342-343, 538-539; 1859, vol. 15, pp. 200-202; 1861, vol. 19, p. 113; LIllustration, 1856, vol. 28, p. 299; Mechanics Magazine, 1857, vol. 66, pp. 529-530; L'Annee scientifique, 1858, vol. 2, p. 488; Les Mondes, 1863, vol. 1, pp. 311-312. " Les Mondes, 1867, vol. 14, pp. 543-555; Du Moncel, op. cit. (footnote 5), vol. 4, pp. 492-500. 15 French patent 38506 (October 23, 1858; addition, October 22, 1859); British patent 653 (March 15, 1859); Victor L. M. Serrin, "Regulateur automatique de lumiere electrique,'' Comptes rendus, 1860, vol. 50, pp. 903-905; Cosmos, I860, vol. 16, pp. 514-517; F. P. Le , "Rapport sur ... un regulateur automatique de lumiere electrique presente par M. Serrin," Bulletin de la Societe d'Encouragement pour Vlndustrie Nationale, 1861, ser. 2, vol. 8, pp. 647-6
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