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ORIGINAL TAKE-OFF BOARD/CARPET FOR MEASURING THE LONG JUMP OF ATHLETES BY THEIR FOOTPRINT
ORIGINAL TAKE-OFF BOARD/CARPET FOR MEASURING THE LONG JUMP OF ATHLETES BY THEIR FOOTPRINT
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机译：用脚踏板测量运动员长跳的原始起飞板/地毯
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摘要
The disclosed herein original carpet/take-off board is composed of two basic rows bearing steady oscillating cones (3,7-fig.1 & 11,19), and a perforated compressed paper axle (fig.1.4) bearing the carpet/take-off board wound around it and affixed onthe cones of the first row. Another similar vacuum axle of compressed paper is similarly placed at the second raw, on the cones thereof (fig. 1-7,9); the extremity of the folded take-off board (carpet) is adapted to the last axle around which said carpet-used previously by another athlete- will be folded up via a mechanism provided. Consequently, the surface of the corridor is removed and the previously-used carpet automatically replaced by a clean one. The foot of the athlete leaves its print on the special chemical malleable material coating said carpet.
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