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Some historic documents about accordion construction
Patents with ideas about rotation and cylindrical mechanisms for treble (transposition mechanism) or bass accordion parts.
1915: the accordion reeds are mounted in a cylindrical vertical position, with a rotation mechanism to transpose:
https://www.google.be/patents/US112...ved=0CBwQ6AEwAGoVChMIn4Xch-bTyAIVS10UCh32pggy
Transposing mechanism for accordions and the like.
US 1129190 A
using mouth harps in bellows with rotation mechanisms: 1966 Knott patent:
https://www.google.be/patents/US328...ved=0CBsQ6AEwAGoVChMI6_uV9ObTyAIVRtUUCh0oXAP2
Musical reed toys
US 3282144 A
for mouth harps:
https://www.google.be/patents/US151...ved=0CEAQ6wEwBGoVChMI4erov-bTyAIVR7QUCh1KCAA2
Dusinberre rotating mouth harps
These days mouth harp makers are again experimenting with twin harmonicas and cross hybrid models.
A combination of some patents could be used to create kits and modular units to create more hybrids, a mix of rotating cylinders , bellows and mouth harps you can freely put inside ?
Maybe the Galleazzi idea of a rotation mechanism for the treble side of the accordion (transposition mechanism) can also be be used for the bass of diatonic and chromatic accordions.
Patents with ideas about rotation and cylindrical mechanisms for treble (transposition mechanism) or bass accordion parts.
1915: the accordion reeds are mounted in a cylindrical vertical position, with a rotation mechanism to transpose:
https://www.google.be/patents/US112...ved=0CBwQ6AEwAGoVChMIn4Xch-bTyAIVS10UCh32pggy
Transposing mechanism for accordions and the like.
US 1129190 A
using mouth harps in bellows with rotation mechanisms: 1966 Knott patent:
https://www.google.be/patents/US328...ved=0CBsQ6AEwAGoVChMI6_uV9ObTyAIVRtUUCh0oXAP2
Musical reed toys
US 3282144 A
for mouth harps:
https://www.google.be/patents/US151...ved=0CEAQ6wEwBGoVChMI4erov-bTyAIVR7QUCh1KCAA2
Dusinberre rotating mouth harps
These days mouth harp makers are again experimenting with twin harmonicas and cross hybrid models.
A combination of some patents could be used to create kits and modular units to create more hybrids, a mix of rotating cylinders , bellows and mouth harps you can freely put inside ?
Maybe the Galleazzi idea of a rotation mechanism for the treble side of the accordion (transposition mechanism) can also be be used for the bass of diatonic and chromatic accordions.
