Show to V NE NEW IDEA iDE IDEA 1 IN WATCH VATCH MAKING I Ito Discovery I covery It Is Announced Is Capable of Revolutionizing the Present Present Pres Pres- ent eat Industry Not long ago there was was w-s announced a discovery described by the director of the International bureau of weights and measures as being capable of revo revolutionizing revolution I lution th the watch-making watch Industry i iA A successful method methot of regulation remedying the variations in time of a 8 i watch due to the expansion and contraction contraction con con- I traction of its parts caused by va variations variations varia varia- la- la laI I of temperature Is th the result of the Invention intention of C. C E. E Guillaume This so called secondary error always al- al al always l ways has been one of the great gleat obstacles obstacles obstacles ob ob- ob- ob In the attainment of perfection and precision in the thee In in- The chief feature of the Guillaume process Is is' is is-a is a change In the alloy used In the c compensating parts Then minimum minimum mini mini- mum expansion on of steel was found to 10 to be Increased sed by the tile addition of 12 per cent of chrome as well as a small quantity of of tungsten manganese man man- or 01 carbon By Bj mounting a spiral of Gf this steel chrome alloy aloy al- al loy oy OJ In the watch according to tle French announcement the problem of compensation ha lin been solved sol and the secondary error rem removed Washing removed Yf Washing Washington ton Star d. 1 |