Concert harps
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United States of America Patent
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Jul 15, 1986
Grant Date -
N/A
app pub date -
Aug 9, 1983
filing date -
Aug 9, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A concert harp including a mechanism for shortening the vibrating length of the strings for setting the instrument tuned scale up. According to the invention, the stress which is immobilizing a point of string (11) in order to modify the vibrating length thereof is provided by a powered element displaceable perpendicularly to the string along a path intersecting the string substantially at the pinching point, particularly a hydraulic micro-jack (1a, 1b). The invention simplifies the mechanism and provides a silent operation.
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