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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 Manual vacuum cleaner ： ウィキペディア英語版 Manual vacuum cleaner The manual vacuum cleaner was a type of non-electric vacuum cleaner, using suction to remove dirt from carpets, being powered by human muscle, similar in use to a manual lawn mower. Its invention is dated to the second half of the 19th century, when patents were granted to inventors in the United States, England, France, and elsewhere.〔(http://historicaltextarchive.com/sections.php?action=read&artid=769 )〕 ==Mechanics== These household appliances created suction by either a pumping action, bellows, a piston being pushed up and down a tube, or had a fan driven by the wheels. Most required the efforts of two people. The models operable by one person were less efficient, but none were truly labor-saving devices or delivered the cleaning efficiency they promised. Besides hand-operated models, foot-operated models were also available, and according to a Swiss source there was even one where the operator sat in a rocking chair, rocking back and forth to produce the energy needed to create suction. 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「Manual vacuum cleaner」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.