Removing knuckles

Barrie Heaton Piano@forte.airtime.co.uk
Mon, 11 Nov 1996 23:06:41 +0000


Dear, Greg & Keith,

 Renner, make a very nice tool for extracting knuckles/rollers if you
want to part with your hard earned money.  On the other hand, I made my
own.  We have a local secondhand tool shop I bought a pair of secondhand
pinches for 50p (these are what carpenters use for removing nails, or an
oversized pair of them beautifully made Sweedish flush cutters)  I grind
down the top of the pinches so that the cutting edge became sharp so
that the pinches could cut cleanly.  Then I drilled a hole in one of the
shafts placed an inch long self-tapping screw.  This screw is then used
to adjust the distance that the jaws close.  You adjust this distance so
it is the thickness of the wooden part of the knuckle.  You then place
your pinches over the knuckle closing firmly and the pinches will cut
through the glue and the leather, but leavoing the wooden part intact
and a sideways movement removes the knuckle cleanly.  I also have
another little tool it is just a peice of wood with two sieenior hack
saws glued together  in a slot,  I use this to clean out the groove
before replacing the new knuckles.  Two saws glued together is just
about the right thickness for most shanks.

Change of direction while we are on the subject of knuckles I tend to
use Japanese a lot and I have noticed over the years, may be me...  but
they seem to be getting harder, they seem to be using a more denser
backing pad any one else come across this?

Regards,

Barrie.


In article <v0151011faea8320739fb@[208.129.71.53]>, "Keith A. McGavern"
<kam544@ionet.net> writes
>>...I would like to inquire of your great minds how you go about
>>removing old knuckles for replacement...
>>Greg & Mary Ellen Newell
>
>Dear Greg,
>
>There is a tool that works like magic.  It's called the Hart Knuckle
>Buster.  I bought mine from Glen Hart at the 1995 Albuquerque PTG
>convention.  Last phone # I have is 970-434-5558.  Seems like I saw this
>same tool at Spurlock Specialty in 1996 Dearborn PTG convention as well.
>Last phone/fax # I have for him is 707-452-8564.
>
>.Keith A. McGavern
>kam544@ionet.net
>Registered Piano Technician
>Oklahoma Chapter 731
>Oklahoma Baptist University
>Shawnee, Oklahoma, USA
>
>
>





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