No Glide Bolts

Robin Hufford hufford1@airmail.net
Wed, 13 Nov 2002 21:14:45 -0800


Nor did Chickering use the glides for many years. RH

Roger Jolly wrote:

> Hi Ric,
>              The note adjacent to the glide bolt, will be very rigid on a
> forte blow, hence most of the energy gets to the hammer and shank.   Mid
> distance between the bolts,   the rail will flex a little, therefore there
> will be a difference in energy transfer.
>
> Years ago, the action makers selected very high grade, quarter sawn maple
> for the rails, so very little bedding was needed after the initial set up.
>
> The Heintzman company never used glides for eons.  I have never found one
> that needed bedding. The actions are quieter, and when set up correctly,
> are very responsive.
>
> Regards Roger
>
> At 11:59 PM 11/13/02 +0100, you wrote:
> >Roger Jolly wrote:
> >
> > > >
> > > >What do you mean by action saturation?
> > > >
> > > >Phil F
> > >
> > > Hi Phil,
> > >               An over simplification:   Energy loss in the action assembly,
> > > and never gets to hammer.
> > >
> > > Regards Roger
> > >
> >
> >Now this is interesting..... and seems to contradict what has been said about
> >adjusting glide bolts up in order to put "pressure" on the keyframe as I
> >believe it was recently described.
> >
> >I will have to order backcopies of the articles Del wrote and just posted
> >as my
> >subscription doesnt go back that far. But if anyone woud care to share some of
> >the particulars on that it would be greatly apprectiated.
> >
> >Cheers !
> >RicB
> >
> >--
> >Richard Brekne
> >RPT, N.P.T.F.
> >UiB, Bergen, Norway
> >mailto:rbrekne@broadpark.no
> >http://home.broadpark.no/~rbrekne/ricmain.html
> >
> >
> >_______________________________________________
> >pianotech list info: https://www.moypiano.com/resources/#archives
>
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