Patent Model - Improvement in Upright Pianos
Maker and role
Charles Chickering (b.1827, d.1891), Patentee
Nov 28 1871
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8 3/4 x 10 3/4 x 1 1/4" (22.2 x 27.3 x 3.2cm)
Chickering's patent "has for its object so to improve the construction of upright piano-forte action-frames that more room is obtained for the hammers without varying the arrangement of strings or size or shape of instrument. The object is attained by arranging the hammers in a curved line and making the rails in the action-frame arched to correspond." (Patent Number 121,334)
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