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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Gab valve gear ： ウィキペディア英語版 Gab valve gear Gab valve gear was an early form of valve gear used on steam engines. Its simplest form allowed an engine to be stopped and started. A double form, mostly used on steam locomotives, allowed easy reversing. == Etymology == The word ''gab'' or ''gabb'' may derive from a word for mouth, recorded by the Oxford English Dictionary from 1724, and probably medieval in origin from other forms related to gossip or idle chatter. The OED also gives the steam engine sense of ''gab'' as a notch in the valvegear as possibly being of Flemish origin, from the word ''gabbe''. This is cited in the OED from 1792.〔''Specif. Kellys Patent'' (1792) No. 1879. 8 'Clear of the notch or gabb of the catch lever'〕 The OED also cites the obviously derivative ''gab-lever'' from 1839. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Gab valve gear」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.