disc cutter

Japanese: disc cutter(英語表記)disccutter
disc cutter


[Development History]
The world's first successful coal mining machine, used in a British coal mine in 1861, was called the Iron Man, and imitated the action of a human swinging a pickaxe horizontally to make a horizontal groove in the bottom of the coal seam (undercutting). Inspired by the success of the Iron Man, by the end of the 19th century, a series of devices had been invented, including the chain cutter (also called the jib cutter or coal cutter), which was used for many years afterwards, the disc cutter, which had blades attached to a circular plate that rotates in a horizontal plane, and the bar cutter, which had many blades attached to a round bar with a horizontal shaft. All of these were used for undercutting the coal seam. In the 20th century, the coal pick was invented, which was used for knocking down the coal seam after undercutting.

*Some of the terminology that mentions "disc cutter" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:


[発達の歴史]
 1861年にイギリスの炭鉱で使用されて,世界で初めて成功した採炭機は,アイアンマンiron manと呼ばれ,人間がつるはしを水平に振るう動作をまねて,炭層の下部に水平な溝を作る作業(下透し作業)を行うものであった。このアイアンマンの成功に刺激されて,19世紀末までには,その後長く使用されることになったチェーンカッターchain cutter(ジブカッターjib cutter,コールカッターcoal cutterとも呼ばれる)や,水平面内を回転する円板に刃物をとりつけたディスクカッターdisc cutter,水平軸を有する丸棒に多数の刃物をとりつけたバーカッターbar cutterなどがつぎつぎに発明され,いずれも炭層の下透し作業に用いられた。20世紀にはいると,下透し作業の後の打落し作業に用いるコールピックが発明された。…

※「disc cutter」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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