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Show Chronometer Exceeds Its Previous Record, Varying SIx-Hundredths of Second. Showing a daily variation of but six one-hundredths of a second, says the Philadelphia Record, a chronometer entered in the competition at the Geneva Gen-eva conservatory exceeded the former record made in the year 1891 by one- hundredth of a second. One hundred and sixteen chronometers were entered in the 1918 contest, against 132 in 1917 and 106 In 1916. Of these 116 entries, five were marine chronometers and 111 pocket chronometers or watches, two of the latter being complicated' pieces. Professor Raoul Gautler, of the Industrial In-dustrial Arts society, writes Consul Lewis W. Hassel from Geneva, in reading read-ing a report on the competition, gives some interesting details on the tests which are made to determine the accuracy ac-curacy of the timepieces. The chronometers chro-nometers are graded on a scale of 1,000 points. The ideal watch would be granted 300 points for its daily precision, pre-cision, 300 points for its ability to support sup-port changes of position, 300 points for its ability to support changes of temperature, and 100 points for its ability abil-ity to resume its normal precision after af-ter the changes of position and temperature. tem-perature. The different deviations of time are quoted in hundredths of a second. sec-ond. The maximum allowed at the Geneva conservatory for pocket chronometers chro-nometers is one-half second of deviation devia-tion during one day's run, two seconds after the position has changed, fifteen one-hundredths for each degree of different dif-ferent temperature, and two and one-half one-half seconds of deviation after having resumed the normal position and temperature. |
