Unglued Hammerheads (Clamping)

[Isaac OLEG SIMANOT]

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Pierre,
Using a stiffer wire as the "Pure sound" will give a longer sustain and more
brilliance (warmness), I did not do that myself in times but surely would do
now if I had to.
As you will never have very tensioned hammers on these pianos the wire helps
the brilliance and a better attack (with a dwell that develop slowly, as
Stephen Birket mentioned).

The original sound of these pianos is very special, it is far better to try
to match it. The ones I've seen with that kind of wire where better always.

Beside, for the use of Roslau string you may have to check the tensions , be
careful the high treble bridge don't like to have too much (bridge pins) or
it cracks easily.

Thanks for sending back info

Isaac
  -----Message d'origine-----
  De : owner-pianotech@ptg.org [mailto:owner-pianotech@ptg.org]De la part de
Gevaert Pierre
  Envoyé : mercredi 20 mars 2002 22:25
  À : pianotech@ptg.org
  Objet : Re: Unglued Hammerheads (Clamping)


  Isaac,

  Thanks for your advice.
  I'll contact Desfougeres and ask if they can also put new leather on those
special rollers.
  I'll ask what method they use.
  The hammers that I had get refelt from Abel were ok but as you say, they
should have more experience with this.

  I have recently restrung one of those parallel Erard Grands that you
mention  (used the Roslau blue wire , single strings)
  but left the original basstrings (still in good condition and  good
quality)
  Do you think the Roslau blue is not the right wire to use?
  The results were good and yes, I agree, very nice pianos.
  For me from the best ever made and I now better understand those people
who does only want to hear
  about parallel strung pianos. Fine and rich sound.
  Tuning those is verry easy and pleasant.

  Regards,
  Pierre Gevaert.
  ----- Original Message -----
    From: Isaac OLEG SIMANOT
    To: pianotech@ptg.org
    Sent: Wednesday, March 20, 2002 12:34 AM
    Subject: RE: Unglued Hammerheads (Clamping)


    Pierre,

    Ask the job to be done by DESFOUGERES in PARIS.
    45 rue Max Dormoy
    75018 PARIS
    phone 033 01 46 07 22 84
    These are French pianos they know very well

    They can too put new leather on the "backchecks" , on the rollers, and
new "galuchat' on the whippen lever.

    Abel does the job too, don't know the result.

    Frankly I am not absolutely sure these refeletings are not done in a
press, I just had a (retired) colleague who had all these individual wood
clamps, closing with a wedge, for these re-felting jobs, and Desfougeres
have the same)

    But the pressure with these wood presses is as high that with the other
press .Refeltings are not done in hydraulic or pneumatic press, just the
traditional manual one, a modern press is used to put the felt in shape a
bit with warmth before gluing in the manual one.


    I've seen Erard shanks allowing for modern hammers too (with a little
dowel at the extremity).
    I guess these where originals. On these you have modern hammers.

    These parallel Erard Grands where build for 100 years use, some have a
very lively soundboard yet, they have a very nice sound, the action is a
little special of course with a 64-58 -mm hammer /string distance.

    If possible to use the correct strings on it the sound will be better.

    Hope that helps.

    Regards.

    Isaac OLEG

    P.S please let us know how they refelt (press or individual) if you ask.
      -----Message d'origine-----
      De : owner-pianotech@ptg.org [mailto:owner-pianotech@ptg.org]De la
part de Gevaert Pierre
      Envoyé : mardi 19 mars 2002 22:39
      À : pianotech@ptg.org
      Objet : Re: Unglued Hammerheads (Clamping)


      Isaac,

      I intend to let refelt the hamers of a verry nice Erard grand of 1927
wich has a tiny sound due to the hamers beeing reshaped
      to often.
      And indeed there are no tails. Thoes that meen that it is more
difficult to obtain good hamers due to the impossibility to clamp the tails?
      Any good adresses in France? I was thinking to ask Abel, but i'm not
shure they can refelt such a hammers.
      Any way, just great pianos those Erards exept for their bizare kind of
hammershanks and hammers.

      Regards,
      Pierre Gevaert
      Belgium
      ----- Original Message -----
        From: Isaac OLEG SIMANOT
        To: pianotech@ptg.org
        Sent: Tuesday, March 19, 2002 1:11 AM
        Subject: RE: Unglued Hammerheads (Clamping)


        Richard,

        The metal clamps yet sold by Renner are indeed designed to clamp
hammer felt. That was done in ancient times eventually to glue some new felt
on multi layers hammers (and leather too of course)

        Another method involved the uses of a wood clamp, the Erard hammers
refelting are yet done as that, as they cant be mounted in a machine for
gluing new felt (no tails).

        These clamps are very strong, the surely could help to clamp back
some old felt, but the hammers are ruined anyway (as probably the piano ).
And yes for sure they don't really apply to modern hammer making.

        Friendly from

        Isaac OLEG

          -----Message d'origine-----
          De : owner-pianotech@ptg.org [mailto:owner-pianotech@ptg.org]De la
part de Richard Brekne
          Envoyé : lundi 18 mars 2002 19:05
          À : pianotech@ptg.org
          Objet : Re: Unglued Hammerheads


          Paul Plumb wrote:
            I have been asked to reglue hammerheads that have come loose
from the molding (not the shanks) because of heat in a fire.  I would like
to know the best kind of glue to use if not hide glue and best way to clamp
them.

          ???? Clamping ???? We do not clamp hammerheads.


            Any other information that may be helpful would be appreciated.
The piano is about 30 years old and there does not appear to be any other
problems except rust formation on the pins and strings.  I realize that some
of the other hammers may become loose in the future and have warned the
client.
            Thanks, Paul Plumb

            Plumb Pianos
          A good wood glue should work just fine... Is this an upright or a
grand. Perhaps you might get a tech with some experience in fire/smoke
damage to take a second look at this instrument. Not all problems relating
to fire / smoke become all the acute immediatly after the event.



          --
          Richard Brekne
          RPT, N.P.T.F.
          Bergen, Norway
          mailto:rbrekne@broadpark.no
          http://home.broadpark.no/~rbrekne/ricmain.html



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