Bass Bridge

[Ron Overs]

Mathew,

Another consideration, if you are contemplating a rebuild of a piano 
with an apron, is to do a new bass-bridge design and remove the apron 
altogether. About the only good purpose which I can think of, for an 
apron, is it provided sales people with a feature for discussion, 
which does absolutely nothing positive for the tone of the instrument.

If you are interested in further information on this topic you'll 
find plenty of discussion in the archives.

To all of those going to Anaheim next week, have a good time. My 
colleague from Aus, Michael Ryan is on his way. I cannot come this 
year because I'm working on the design of a new grand piano for a 
planned launch at next year's IAPBT meeting in Queensland Australia. 
The work load to get the tooling and the piano (a 173 cm [5'8"] grand 
piano measured with the top lid on) built by September next year will 
be considerable.

Ron O.


>Matthew,
>
>    As Alicia said, the piece the bass bridge is connected to, when 
>it is constructed offset rather than being glued directly to the 
>soundboard, is called an "apron" and sometimes a "shelf."  Cracks in 
>the apron can be a problem.  It is important to check the glue joint 
>between the apron/bridge and also the apron/soundboard strip at the 
>top edge of the apron.  If the glue joints are solid, the cracks in 
>the apron may not be a serious problem unless things get worse. 
>Ideally, the apron should be without cracks, but that may be down 
>the list of priorities with this piano, depending on how extensive 
>the repairs and service will be.  The needs and available funds of 
>the piano owner will affect the priorities.
>
>Claude Harding
>
>
>From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] 
>On Behalf Of Matthew Todd
>Sent: Saturday, June 14, 2008 12:47 PM
>To: pianotech at ptg.org
>Subject: Bass Bridge
>
>Went to evaluate a WP Haines upright.  Please forgive my ignorance, 
>but what is the piece of wood the bass bridge sits on and is between 
>the bridge and soundboard called?  Anyway, the bridge looks good, 
>but that section of wood has several cracks.  Will that cause just 
>as much tuning instability as if the bridge were cracked?
>
>
>Thanks,
>Matthew


-- 
OVERS PIANOS - SYDNEY
    Grand Piano Manufacturers
_______________________

Web http://overspianos.com.au
mailto:ron at overspianos.com.au
_______________________
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20080615/294543c4/attachment-0001.html