Apparatus for lengthening the vibrating length of strings on a harp
AssigneeJoris Beets Design Limited
InventorsJoris Willem Beets, Olav Jens Hoekstra
Life of this patent
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Abstract
Apparatus (32) for lengthening the vibrating length of strings (34) on a harp, which apparatus (32) comprises: (i) securing means (42) for securing one end of the strings (34); (ii) adjuster members (46) for increasing the length of the strings (34) in order to increase the tension in the strings and thereby alter the frequency of vibration of the strings (34); and (iii) mounting means (48) for mounting the apparatus (32) on the harp (36) and wherein: (iv) there is one of the adjuster members (46) for each one of the strings (34); and (v) the adjuster members (46) are pivotable adjuster members (46) which are pivotable between a string non-lengthening position and a string lengthening position.
Claims10
An apparatus for lengthening a vibrating length of strings on a harp, which apparatus comprises:
- (i) a securing means for securing one end of the strings;
- (ii) adjuster members for increasing the length of the strings in order to increase a tension in the strings and thereby alter a frequency of vibration of the strings;
- (iii) a rod member;
- and
- (iv) a mounting means for mounting the apparatus on the harp, and characterised in that:
- (v) the adjuster members are lever members;
- (vi) there is one of the lever members for each one of the strings;
- (vii) the securing means comprises a plurality of finger members, in which there is one of the finger members for each one of the strings of the harp, and in which each finger member is operated by one of the lever members;
- (viii) the lever members have a cam portion which operates the securing means;
- (ix) the lever members have a receiving slot for receiving the rod member;
- (x) the lever members being pivotably mounted on the rod member;
- and whereby:
- (xi) the lever members are pivotable adjuster members which are pivotable between a string non-lengthening position and a string lengthening position;
- (xii) the lever members act on the securing means in order to increase the length of the string.
Dependencies are inferred from the claim text.