艺术家: Antoine-Joseph 'Adolphe' Sax
日期: 1885
术: 铜
青铜器上压抑阀门使该器增加了管长. 准确计算出每个阀道的准确长度,以按比例延长管子的总长度. 然而,当玩家一次同时减压不止一个阀门时,这个系统会产生入子问题. 为了解决这一问题,萨克斯于1852年提交了一份专利,用于将7个独立管子(每个管子有自有的铃声)与口具相接的仪器. 七铃乐器又重又繁琐可玩. 因此,Sax设计并获得了专利(1859年)一种有6个独立起伏阀的单铃乐器. 在这个例子中 -- 一个阀门通气管 -- 最长的管子是在没有阀门压抑时使用的。 每个相隔的阀门会激活更短的管长并用半通提高发球.
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