McNeela Anglo concertina hidden springs?

[Jody Kruskal]

Where are the springs hiding on the McNeela Anglo concertina? It's one of their better models, perhaps a Curlew. My student and I thought to fix a busted spring, took the end off and there were no visible springs on the levers or action board. Disassembly stopped there because everything else was waxed in. They must be underneath the buttons, I guess, but there does not seem to be much room in there... and what would such a spring look like?

 

https://mcneelamusic.com/the-curlew-concertina/

[RAc]

4 hours ago, Jody Kruskal said:

Where are the springs hiding on the McNeela Anglo concertina? It's one of their better models, perhaps a Curlew. My student and I thought to fix a busted spring, took the end off and there were no visible springs on the levers or action board. Disassembly stopped there because everything else was waxed in. They must be underneath the buttons, I guess, but there does not seem to be much room in there... and what would such a spring look like?

 

https://mcneelamusic.com/the-curlew-concertina/

 

It would likely be a conical spring. Following Dana's advice I experimented with those when I attempted my 3D printed action board. They are acceptibly easy to wind yourself. See here:

 

Forum link on button springs

 

 

 

Edited March 5, 2020 by RAc
cleaned up link