What is this on my plate?

[Newton Hunt]

It has various names, horn, fin and others I cannot recall at the
moment.  It's purpose is to transfer stress to the belly rail (the bolt
you see) for tuning stability and coupling the rim to the plate.

Before restinging make sure the two touch each other.  When tuned the
plate cannot bend further in that area.

		Newton

Gerald Posey wrote:
> 
> On my small Heintzmann grand, bolted to plate, under the ashtray.  It is
> about 4" long, hanging down into the action cavity, curved back toward the
> soundboard.  It comes near to, but doesn't touch, a 1/2" headless bolt that
> looks like it could unscrew to push against this thing.
> Gerald
> 
> _______________________________________________
> pianotech list info: https://www.moypiano.com/resources/#archives