grand action in an upright

[Cy Shuster]

Mark,

All I know is what I see here, too.  If you click on the picture, you can 
see the Sauter's hammer rest rail has a movable triangular section, with 
hypotenuse facing the strings, pivoting on an action center on the lower, 
string side of the rail.  Maybe it moves the shank forward after the key is 
released and the backcheck releases the catcher?  That's what the rep spring 
does on a Fandrich vertical.  Anyone know for sure?

--Cy--
SHUSTERpiano.com

----- Original Message ----- 
From: "Mark Schecter" <schecter at pacbell.net>
To: "Cy Shuster" <cy at shusterpiano.com>; "Pianotech List" <pianotech at ptg.org>
Sent: Sunday, June 25, 2006 4:36 PM
Subject: Re: grand action in an upright


> Hi, Cy.
>
> Thanks for the links. The Steingraber seems like it could be interesting, 
> but it's difficult to decipher from the picture exactly how the 
> supplementary system functions. Even the pdf brochure is vague. It would 
> be interesting to see really good diagrams or photographs that were 
> _intended_ to reveal the design.
>
> On the other hand, I looked at the picture of the Sauter action, and I 
> don't see anything different about it - it looks completely ordinary. What 
> am I missing?
>
> -Mark Schecter
>
> Cy Shuster wrote:
>> Steingraber has a repetition action, but it doesn't use grand wippens:
>> http://www.steingraeber.de/homepage.htm
>> Click "upright pianos" on the right, then click on the picture of the 
>> "Modell 130 PS Profi Studio" (fifth one down).
>>  Here's the Sauter action:
>> http://www.sauter-pianos.de/english/technique/sound/double_repetition.html
>>  --Cy--
>> SHUSTERpiano.com
>
>