Baldwin accujust hitch pins

[Greg Newell]

It was my understanding that the hitch pin used by Walter is indeed 
adjustable but the entire pin moves up and down not just the string.

Greg Newell



At 08:15 AM 7/24/2004, you wrote:
>Charles Walter Pianos uses a vertical hitch pin (at least their current
>grand), however it has a groove around the upper portion that forces the
>string to ride at a specified height (it is not vertically adjustable like
>the Baldwin). Don't know what will be on their new grand.
>
>I like them. I routinely modify plates during the rebuilding process and
>convert from traditional hitch pins to vertical hitch pins. I use simple
>stainless spring pins. However, the bridge top does indeed need to be planed
>to proper height for downbearing - but you do have a bit of play when
>placing the string on the pin - you want it up off the plate, but you don't
>want it so high that you introduce excessive hitch pin torque on the plate.
>
>Don't see how a vertical hitch pin could be associated with tuning
>instability - unless of course a two adjacent notes with radically different
>string tensions share a string - but you shouldn't have that anyway - but
>from a factory, who knows.
>
>Terry Farrell
>
> > Some people like them, and I know a couple who really
> > dislike them.  I think they are a very intelligent
> > solution.  You can adjust the downbearing exactly as
> > you wish on every string, and the manufacturing
> > process is greatly simplified - the bridge top doesn't
> > have to be custom tailored to the plate.
> >
> > The main cause of tuning instability on Baldwins is
> > that the pin block often hasn't been fit to the plate
> > flange.  With time, the pin block can move.
> >
> > I don't know of any other manufacturer who uses the
> > Baldwin hitch pin design.
> >
> > Vladan
> >
> > =============================================
> > Someone I know complains the Baldwin hitch pins cause
> > them to not stay
> > in tune. I can't imagine the hitch pin would affect
> > tuning in that way,
> > but I wanted to ask what other technicians on the list
> > think about
> > that.
> >
> > Any other comments about the hitch pins are welcome. I
> > understand their
> > purpose (isn't there another piano maker that uses a
> > similar idea?),
> > but I wasn't sure if it was actually useful in the
> > real world.
> >
> >
> >
> >
> >
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>
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Greg Newell
Greg's piano Forté
mailto:gnewell@ameritech.net