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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 Broad sheet glass ： ウィキペディア英語版 Broad sheet glass Broad sheet is a type of hand-blown glass. It was first made in Sussex in 1226.〔http://rth.org.uk/building-regency-houses/building-crafts-skills/glass〕 == Production == It is made by blowing molten glass into an elongated balloon shape with a blowpipe. Then, while the glass is still hot, the ends are cut off and the resulting cylinder is split with shears and flattened on an iron plate. The quality of broad sheet glass is not good, with many imperfections and mostly translucent. Due to the relatively small sizes blown, broad sheet was typically made into leadlights. The centerpiece was used for decoration in places where looking through the glass wasn't vital. If the piece was large, it was possible to see bubble tracks and strain lines.〔http://mikegigi.com/tubeshet.htm〕 Other methods for making hand-blown glass included blown plate glass, crown glass, polished plate glass and cylinder blown sheet glass. These methods of manufacture lasted at least until the end of the 19th Century. The early 20th century marks the move away from hand-blown to machine manufactured glass such as rolled plate glass, machine drawn cylinder sheet glass, flat drawn sheet glass, single and twin ground polished plate glass and float glass. Broad sheet glass was first made in the UK in Sussex in 1226. This glass was of poor quality and fairly opaque. Manufacture slowly decreased and ceased by the early 16th Century. French glass-makers and others were making broad sheet glass earlier than this. 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「Broad sheet glass」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.