…However, there was still no mechanism for removing the rock fragments (cuttings) that had been crushed by the bit, so removing the cuttings became the next problem. This problem was solved by the American Rainer J. G. Leyner. In 1897, he invented a method that used a hollow steel rod to blow compressed air into the bottom of the hole to remove the cuttings. … *Some of the terminology that mentions "Leyner, JG" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…しかし,まだビットで破砕した岩石の破片(繰り粉)を排除する機構はもっていなかったので,繰り粉の排除が,次の問題になった。 この問題を解決したのは,アメリカのライナーJ.G.Leynerであった。彼は1897年,ロッドに中空鋼を使って,圧縮空気を孔底に吹きこんで繰り粉を排除する方式を発明した。… ※「Leyner,J.G.」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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