Patent Model - Improvement in Pianos
Maker and role
Richard Raven, Patentee
Aug 14 1866
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4 1/4 x 20 x 10 1/2" (10.8 x 50.8 x 26.7cm)
The objective of Raven's patent "is to increase the power and quantity of tone in the piano-forte by means of improved sounding-boards and also by means of additional sounding-boards. The invention consists in the introduction of a drum or sounding-chest composed of one or more additional and supplementary sounding-boards with the necessary bars for strength and also with posts, arches, or bridges to connect them." (Patent Number 57,186)
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