发明名称 Automatic tuning system for piano - is formed by applying defined tension to each string by attaching weight to its free end
摘要 An automatic tuning system for a piano is formed by attaching a defined weight (4) to the end of the string which generates a particular note. The string (1) passes over a bridge (6) and then around a roller (2). The roller is mounted on a shaft (3) which is mounted on a metal plate (5). A defined weight (4) is then attached to the free end of the string. The magnitude of the weight for each string of the piano is determined by the piano tuner when the piano is initially tuned. USE/ADVANTAGE - Automatic tuning system for a piano. The piano never needs re-tuning.
申请公布号 DE4209201(A1) 申请公布日期 1993.09.23
申请号 DE19924209201 申请日期 1992.03.19
申请人 RUDNIK, WITOLD, 1000 BERLIN, DE 发明人 RUDNIK, WITOLD, 1000 BERLIN, DE
分类号 G10C3/10 主分类号 G10C3/10
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