Individual aliquots on a Mason "&" Hamlin

[David Love]

Thought I did.  Sometimes my reply button brings up the originator of the
message rather than the pianotech source.  Sorry about that.

David Love
davidlovepianos@earthlink.net


> [Original Message]
[link redacted at request of site owner - Jul 25, 2015]
> To: <davidlovepianos@earthlink.net>
> Date: 10/6/2003 10:36:04 AM
> Subject: Re: Individual aliquots on a Mason "&" Hamlin
>
> David Love wrote:
> > John:
> > 
> > Looks very nice.  On the front aliquots, what is the steel rod sitting
in
> > to hold it in place?  Any particular reason for using steel rather than
> > brass that seems to have a natural lubricity?   What is your opinion
about
> > diameter of the front aliquots; can they be too wide or too narrow?  In
> > your experience is a wider front aliquot more likely to buzz?  In the
tenor
> > section, is the rod held in place in the same manor?  The lower part is
not
> > visible in the photo.  Nice plate color, by the way.  
> David,
>
> Why did you not post this on pianotek?
>
> I used delignite and stained them dark brown.  It look just like 
> rosewood. It has a slot machined in it for the rod to rest in. I made 
> these about 2mm higher than then original wood ones. Steel holds up 
> better than brass especially if you have a high angle to the counter 
> bearing (these ar about 20 degrees). I have never noticed and problem 
> with the shape of the counter bearing, some are quite wide. It is not 
> going to be a factor if the front segment doesn't vibrate too much. 
> That's what you want; as littler energy leaking past he duplex as 
> possible. Check out Del's article in the Journal about this. The tenor 
> bar just sits on the plate in front of the new string rest. The string 
> bears slightly on the felt covering of the string rest.
>
> John Hartman RPT
>
> John Hartman Pianos
[link redacted at request of site owner - Jul 25, 2015]
> Rebuilding Steinway and Mason & Hamlin
> Grand Pianos Since 1979
>
> Piano Technicians Journal
> Journal Illustrator/Contributing Editor
[link redacted at request of site owner - Jul 25, 2015]
>