David Love/Voicing tool Recommendation

[Isaac OLEG SIMANOT]

Hello Del,

If I understand things correctly, the term "tensioned hammer is appropriate
in the fact that on the kind of stapled hammers, the voicing is done
creating tension in the hammer while the extremity of the felt stays fixed
by the staple (and impregnation sometime)
By loosening the fiber the tension is displaced where we need it.

The US S&S type of hammer voicing does not use the basement of the felt for
any sound production and the staples can be put off. This is a totally
different approach, and the use of lacquers/ tensioning agents does not add
so much tension that the S&S/"tensioned hammers" needling method.

SO I find the term appropriate.

For people who like the sound of cold pressed hammers, they surely will
appreciate to have their ancient hammers recovered with new felt, as ABEl,
RENNER, and other little shop uses to do in Europe. There you never obtain a
rock hard hammer, the big problem is that the job must be perfectly done if
we want the crown to be well centered, and the felt may be first class for
these jobs.
Have you someone doing that in the US ?

Regards

Isaac OLEG

XXI century concert tech

> -----Message d'origine-----
> De : owner-pianotech@ptg.org [mailto:owner-pianotech@ptg.org]De la part
> de Delwin D Fandrich
> Envoyé : samedi 16 février 2002 21:18
> À : pianotech@ptg.org
> Objet : Re: David Love/Voicing tool Recommendation
>
>
>
> ----- Original Message -----
> From: "David Love" <davidlovepianos@earthlink.net>
> To: <pianotech@ptg.org>
> Sent: February 16, 2002 7:28 AM
> Subject: Re: David Love/Voicing tool Recommendation
>
>
> > .... There are times, however, when a tensioned hammer is
> appropriate and
> > I have used the Renner Blue on many occasions.
>
>
> David,
>
> What do you mean when you say 'a tensioned hammer?' If you're referring to
> the relative hardness and density of the Renner Blue hammer, this does not
> really come from having the felt under 'tension.' These
> characteristics are
> more a function of the moisture content of the felt, the amount
> of pressure
> on the press and the heat of the side cauls. All of which tend to
> reduce the
> tension in the finished hammer in much the same way that ironing
> a wool suit
> with steam, pressure and heat take out the wrinkles and set the
> fabric flat
> and wrinkle free.
>
> I would be more inclined to call the Steinway hammer (before all of the
> sanding and lacquering), the Ronsen hammer and the Isaacs hammer tensioned
> in that there is still some amount of tension in the wool fiber after
> pressing.
>
> Del
>
>