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1. GB2384109 - Microtonal tuning mechanism

Office United Kingdom
Application Number 0200785
Application Date 15.01.2002
Publication Number 2384109
Publication Date 06.03.2002
Publication Kind B
IPC
G10C 3/04
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
CPIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
3Details or accessories
04Frames; Bridges; Bars
G10D 3/04
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
DSTRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
3Details of, or accessories for, stringed musical instruments, e.g. slide-bars
04Bridges
CPC
G10C 3/04
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
CPIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
3Details or accessories
04Frames; Bridges; Bars
G10D 3/053
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
DSTRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
3Details of, or accessories for, stringed musical instruments, e.g. slide-bars
053Capos, i.e. capo tastos
Applicants SMITH GEOFFREY MICHAEL
Inventors SMITH GEOFFREY MICHAEL
Priority Data 0200785 15.01.2002 GB
Title
(EN) Microtonal tuning mechanism
Abstract
(EN)
A mechanism to enable microtonal tuning on hammered dulcimers, acoustic pianos and any other instruments that can incorporate the mechanism and the principle of the mechanism. The mechanism includes a sliding bridge 4 whose integral tongue 7 sits in a groove 2 which has been cut into a bed 3 and is slidable 8 between buffer 1a and buffer 1b by utilising the handle 5. The buffers 1a, 1b are fixed at specific points and angles such that sliding the bridge to the limit of movement allowed by the buffers will raise or lower the pitch of a note of a particular tuned string or strings 9 by one semitone due to that string or strings being in contact with the bridge cap 6. If the sliding bridge 4 is stopped at any point between the buffers 1a, 1b, a precise microtonal interval change of less than a semitone will be effected.

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