Bluthner Patent Action

John Delacour JD at Pianomaker.co.uk
Fri Sep 26 14:58:30 MDT 2008


At 11:06 -0700 26/9/08, Jurgen Goering wrote:

>  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.

Yes.  Firm does not mean heavy.  I wondered whether to translate 
'fest' by 'tight' rather than 'firm'.  Surely they are talking of the 
sensation of the touch, which some players might describe as tight 
and others as firm.

>>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.


>>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.

Yes.  What I said makes no sense at all!

>>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.

but the name of the part is the 'Damper Body'*, so

9. The damper slap rail must be so adjusted that the damper bodies of 
the sharp keys when depressed almost touch the slap rail felt.

*Damper Body : The lever which carries the damper stem wire in an 
upright and the lever to which the damper drop is centred in a grand.


JD



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