Hammer assist spring ?

[Stéphane Collin]

Hello Cy.

You can bend the spring up to the tension that would cause the hammer to raise from the hammer rest rail.  One drawback of this desing, as Ron Overs stated, is that the lightening effect of the spring reduces much when the hammer raises.  But this is a problem only on PP blows, as (so stated Ric) when the hammer is in movement, it needs less help.

Stéphane Collin.


----- Original Message ----- 
From: "Cy Shuster" <charter1400@charter.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Saturday, June 07, 2003 4:05 PM
Subject: Re: Hammer assist spring ?


| How does this spring assist hammer movement, but still let the hammer at
| rest lie in its normal position?  Is there no spring tension until the key
| starts to move?
| 
| --Cy Shuster--
| Rochester, MN
| 
| ----- Original Message -----
| From: "Richard Brekne" <Richard.Brekne@grieg.uib.no>
| To: "Pianotech" <pianotech@ptg.org>
| Sent: Saturday, June 07, 2003 4:10 AM
| Subject: Re: Hammer assist spring ?
| 
| 
| > Hey !!
| >
| > This puppy is actually quite cute !... that spring has a nice combination
| > affect of pulling the jack back into place as well. It tensions the jack
| > and the shank in opposite directions so to some degree it would work
| > together with that springed jack check to improve repetition. Tho it looks
| > like the key would need to have enough back weight to fall back quickly
| > enough.
| >
| > Neat action idea.
| >
| > RicB
| 
| 
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