Bridge design

[Erwinspiano@AOL.COM]

---------------------- multipart/alternative attachment
In a message dated 7/5/2002 12:47:26 PM Pacific Daylight Time, 
pianobuilders@olynet.com writes:


> Subj:Re: Bridge design 
> Date:7/5/2002 12:47:26 PM Pacific Daylight Time
> From:<A HREF="mailto:pianobuilders@olynet.com">pianobuilders@olynet.com</A>
> Reply-to:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A>
> To:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A>
> Sent from the Internet 
> 
> 
> 
>  
> >> ----- Original Message ----- 
>> From: <A HREF="mailto:davidlovepianos@earthlink.net">David Love</A> 
>> To: <A HREF="mailto:pianotech@ptg.org">Pianotech</A> 
>> Sent: July 05, 2002 9:25 AM
>> Subject: Bridge design
>> 
>> 
>> On a Steinway M there are several gaps between the bridge and the 
>> soundboard at the lower end of the treble/tenor bridge.  What is the 
>> purpose of those gaps in design, and if one were remaking a bridge for 
>> that instrument, would you duplicate that design?
>>  
>> David Love


>  David, Del
>   I've often wondered the same thing about the M bridge. A while back I 
> think we talked about floating sound boards and bridge modifications in 
> this area as well.
>   Oddly enough I just purchased 2 Mason As . One from 1929 and the other 
> 1931. Thw 1929 has the usual long tenor bridge and the other has a modified 
> tenor bridge. The bridge makes an abrupt swing towards the staight /bass 
> side of the case. This shortens up the speaking length bout 3 or 4 inches 
> and on it are of course 5 wrapped bi-chord unisons. The plate area at the 
> agraffes is also shortened appox. an inch. 
>   I found this to have a very good bass tenor break and a step in the right 
> direction with this model considering the break with plain wire has been 
> changed i different wire size configurations over time. And with not much 
> success. To bad that Mason& Hamlin didn't stick with it. No doubt more 
> costly .SO WHAT. Any rebuilder could easily duplicate this modification 
> except the agraffe change.
>   What say ye.
>   >>>>Dale Erwin>>>

       

> A better solution would be to straighten out the scaling in that area and 
> use an extension on the end of the tenor bridge to stiffen up the end of 
> the bridge -- even better, design in a transition bridge -- and/or redesign 
> the ribbing, and leave out the gaps. 
>  
> Del
> 


---------------------- multipart/alternative attachment
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/34/10/3e/84/attachment.htm

---------------------- multipart/alternative attachment--