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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 Chester Rolling Mill ： ウィキペディア英語版 Chester Rolling Mill The Chester Rolling Mill was a large iron (later steel) rolling mill established by shipbuilder John Roach in Chester, Pennsylvania, United States in 1873. The main purpose of the Mill was to provide metal hull plates, beams and other parts for the ships built at Roach's Delaware River Iron Ship Building and Engine Works, also located at Chester. Amongst the mill's notable achievements, it manufactured the steel plates for the first steel-hulled steamship built in the United States, ''Alaskan'', and for the U.S. Navy's first four steel ships, the so-called "ABCD ships". Production of the latter vessels drove Roach's shipbuilding empire into receivership after the government unexpectedly repudiated the contracts, and Roach was forced to sell the Chester Rolling Mill and most of his other companies to satisfy creditors. The Chester Rolling Mill later became part of the Wellman Steel Company. ==History== Roach established his shipyard, the Delaware River Iron Ship Building and Engine Works, on the Delaware River at Chester in 1871. He had two reasons for establishing the Chester Rolling Mill. Firstly, the locality of Chester lacked facilities for the large-scale production of iron plates and frames as required by his shipyard. Secondly, by establishing his own rolling mill, he could dispense with ironmaking subcontractors and thus reduce his overall costs.〔Swann, p. 59.〕 Roach's ownership of a network of companies supporting his shipyard, which included the Chester Rolling Mill, the Chester Pipe and Tube Company and later the Standard Steel Casting Company and the Combination Steel and Iron Company made John Roach & Sons one of the first large companies in the United States to adopt the vertical integration model.〔Swann, pp 73-74.〕 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「Chester Rolling Mill」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.