Bluthner Patent Action

Jurgen Goering pianoforte at pianofortesupply.com
Fri Sep 26 12:06:17 MDT 2008


  A few more corrections to the translation:

> Im Gegensatz zur Erard-Mechanik ist bei der Blüthner-Mechanik der 
> Druck fester zu machen (kein Nachdruck). Die Taste wird langsam bis 
> auf das Druckfleckdien gedrückt, und dann muß der Hammer noch 1 mm 
> steigen, bis er auslöst, so daß er nur bei mittelmäßigem Anschlag 
> fängt.
The touch of the Blüthner action is not firmer than an Erard action at 
all. It is arguably lighter.  What they are saying is that there is no 
after-touch.
> 4. The Touch
> The touch of the Blüthner action is firm in comparison with the 
> Herz-Erard action, with no after-touch.  The key should be pressed 
> slowly until it comes to contact with the touch washer, and then the 
> hammer should rise a further 1 millimetre before setting off, so that 
> it only falls into check under a moderate blow.

> 6. Abnicken
> Die Winkelfeder (9), die das Abnicken bewirkt, muß im ...
The L-spring which is responsible for the the drop must be .....
> 6.  The Drop
>  The steel L-spring responsible for the repetition must be ...


> 9. Die Pralleiste für die Dämpfung muß so eingestellt werden, daß bei 
> heruntergedrückter schwarzer Taste der Dämpfer ganz wenig Luft hat.
It says nothing about the ends of the sharp keys. It says that the 
damper up-stop rail must be adjusted so that there is a very small gap 
between it and the  damper (underlever) of a depressed sharp.
> 9. The damper stop rail must be so adjusted that the felts at the end 
> of the sharp keys almost touch the damper bodies when the dampers are 
> raised.
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