How to adjust let-off with no adjustable capstan?

[David Nereson]

John Ross wrote:

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> *Hi List,*
> *As a further to the image I sent, and the query. The piano is a 
> Braumuller, made in New York.*
> *The capstans, are like nails, unable to be adjusted, I can't find any 
> way to adjust them.*
> *Any ideas??*
>  
> *John M. Ross
> Windsor, Nova Scotia, Canada
> jrpiano@win.eastlink.ca <mailto:jrpiano@win.eastlink.ca>*

I didn't see the pictures, but can you bend the whole rail up or down 
(by bending the props)?
--David Nereson, RPT