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ARLINGTON PARK ODDS BOARD Four Electrically Operated Indicators to Be Installed in Connection With Totalizer. Four electrically-operated indicator boards employing the use of 10,276 mazda bulbs, ■will be erected at Arlington Park in connection with the 50,000 totalizer now being installed at the North Side course, Roy Car-ruthers, managing director of the Arlington Park Jockey Club, has announced. The indicator board, to be located in the infield, clubhouse and grandstand enclosures and paddock, will be in readiness for Arlingtons thirty-day race meeting, which starts June 26. : By means of the electrical indicator boards, it was pointed out, odds on the various horses may be displayed instantaneously as the bbards are connected by cables with the calculating machines, also operated by electricity, and these are similarly hooked up with the ticket issuers. In anticipating the demands of a metropolitan race track, engineers of the American Totalizer Company, which is installing the new Arlington machine, hit upon the use of electric bulbs, a nest of twenty-four bulbs being capable of forming the numerals from zero to nine as desired and these numerals cannot only be changed at speeds greater than the human eye can follow, but possess no inertia, stop at any desired point instantly and may be read clearly at a great distance and in any light, the Arlington official stated. The Arlington indicator boards will be so constructed as to display the amount of money bet and the odds on each horse, the figures to be changed at stated intervals by automatic control. Each change will show the exact betting and odds exactly as they are at that moment, Mr. Carruthers explained. «
