Can you believe all you read?

justpianos@our.net.au justpianos@our.net.au
Sun, 20 Nov 2005 20:08:21 -0000


List,
I'm still not convinced as all comments have talked of problems only after 
ageing and deterioration of other parts of action, which would need replacing 
anyway.
Anybody with action design experience care to comment?
Bruce Browning - The Piano Tuner.






David Nereson <dnereson@4dv.net> said:

>  
> 
> >>
> >    It's true that the primary function of bridle straps is to keep the 
> > jacks from falling under the butts when removing the action.  However, 
> > high-speed photography conducted by Yamaha in the late 1970's, I 
> > believe, showed that the bridle strap does indeed aid in repetition in 
> > certain types of keystrokes.   At least one technician on this list 
> > claims that he can feel the difference if a bridle strap is glued (or 
> > corked) into the catcher, rather than into the butt where the catcher 
> > stem is glued.
> >    Bridle wires are usually regulated so that they are taut when the 
> > soft pedal is depressed, i.e., when the hammers are at half blow 
> > distance.  Also, when the soft pedal is depressed, the tautness of the 
> > bridles should not cause any keys to "wink."     Most verticals will 
> > play just fine without bridles, if everything else is regulated 
> > properly, and yes, you could probably just insert a rail, but why have 
> > piano manufacturers continued to install bridle straps?  There must be 
> > a reason besides "tradition," which goes by the wayside if it's not 
> > cost-effective.    --David Nereson, RPT
> >
>     I meant to add that I've seen at least one console--I forget the 
> make-- that was manufactured with no bridle straps.  I didn't have to 
> pull the action, so I don't know what keeps the jacks from jamming under 
> the butts if it's removed.   -- D.N.
> 
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