Janssen info needed.

Jim Coleman, Sr. pianotoo@IMAP2.ASU.EDU
Tue, 26 May 1998 21:03:20 -0700 (MST)


Hi Richard:

This is a very common problem with the Janssen pianos. They didn't always
have the thru bolts in the best places and also the back material was soft
wood and would crush, thereby losing its support for the joints. You will
need to put in extra bolts to secure the repair.

The Everett used hard wood back assemblies.

Jim Coleman, Sr.

On Tue, 26 May 1998, Richard Moody wrote:

> 
> I recently tuned a Janssen console 116331 (1952) and noticeced a split in
> some parts of the pin block joining or near the frame, looking down from
> the top.  I also noticed that the top bolts seemed to go all the way
> through, so the traditional repair of drilling these all the way through
> is moot. It looks like a carrage bold was used, and the head came in from
> the back, and the nut and a cap nut put in front. (the tuning pin side).  
>  I am wondering if this was from the factory.  
> 	By coincedence the next week I tuned an Everett console.  also from the
> 50's and noticed the same thing. The top plate bolts completely through
> with the threaded end on the tuning pin side. .   I had never seen this on
> an Everett, and I used to tune for a dealer who sold them, perhaps it is
> something I never noticed.   The block to frame seams were solid in this
> case.  
> 
> As far as the cracks in the Janssen, we are watching.  I don't see how
> they can appear with the plate bolts going all the way through.  Maybe
> it's just wood shrinkage, and NOT the pin block trying to pull away??? The
> piano was at pitch. 
> 
> comments suggestions ?  
> 
> Thanks
> 
> Richard Moody. 
> 
> 


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