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Show NEW IDEA IN WATCH MAKING Discovery, It Is Announced, Is Capable of Revolutionizing the Present Pres-ent Industry. Not long ago there was announced a discovery described by the director of the international bureau of weights and measures as being capable of revolutionizing revo-lutionizing the watch-making Industry, A successful method of regulation, remedying the variations In time of a watch due to the expansion and contraction con-traction of Its parts caused by variations varia-tions of temperature, Is the result of the Invention of O. E. Guillaume, This so-called "secondary error" always al-ways has been one of the great obstacles ob-stacles In the attainment of perfection and precision In the watchmaking Industry. In-dustry. The chief feature of the Guillaume process Is a change In the alloy used In the compensating parts. Then minimum mini-mum expansion of nickeled steel was found to be Increased by the addition of 12 per cent of chrome as wall as a small quantity of tungsten, manganese man-ganese or carbon. By mounting a spiral of this steel-nlckel-chrome alloy al-loy in the watch, according to ta French announcement, the problem ol compensation has been solved and the "secondary error" removed. Washington Washing-ton Star. |