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Show NEW IDEA IN WATCH MAKINQ Discovery, It Is Announced, Is CapAbli of Revolutionizing the Present Pres-ent Industry. Not long ago there was announced a discovery described by the dlrectoi of the International bureau of weight! and measures as being capable of revolutionising revo-lutionising the watch-making Industry, A successful method of regulation, remedying the variations In time of 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 C E. Gulllaume. 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 Gulllaume process Is a change In the alloy used In the compensating parts. Then minimum mini-mum expansion of nickeled steel wa found to be Increased by the addition of 12 per cent of chrome as well as small quantity of tungsten, manganese man-ganese or carbon. ' By mounting a spiral of this steel-nlekel-chrome alloy al-loy In the watch, according to t French announcement, the problem ol compensation has been solved and the "secondary error" removed. Washington Washing-ton Star. |