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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 Darby Steam-Digger ： ウィキペディア英語版 Darby Steam-Digger The Darby Steam-Digger, a light traction engine, was invented circa 1879 by farmer Thomas Darby and built at Lodge Farm Pleshey, near Chelmsford in Essex, England. Robert Hasler, seen driving the Digger, helped to build this first prototype. In effect the machine was an early tractor designed mainly for ploughing, and could accomplish an hour (1 m²/s) to a maximum depth of 14 inches (360 mm). This first digger was constructed on pedestrian principles and had six "feet" and really did walk over the fields. Unfortunately it jumped too much to be really successful. The digger was later modified to have wheels in place of the legs. This machine pre-dated the Ivel tractor built by Dan Albone of Biggleswade in 1902 which he started designing in 1896.〔Classic Farm Tractors, by Micheal Williams, ISBN 978-0-7537-1446-1〕 The Ivel tractor is generally considered to be the first British tractor with an internal combustion engine. Robert Hasler was born in Pleshey in 1856; he worked as an engineer for Thomas Darby for 26 years, then became the village blacksmith (following his father) until he retired in 1925. At the age of 19 he was badly kicked by a horse, and this necessitated one of his legs being amputated. == Second version == The second version was known as the Darby Broadside Digger which was a larger machine which had eight legs and wheels and a double boiler having a smoke-box and chimney at each end. 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「Darby Steam-Digger」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.