[pianotech] repetition springs with cords

[Aaron Rodriguez]

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-----Original Message-----
From: pianoguru at cox.net
Sent: Wednesday, June 10, 2009 9:12 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] repetition springs with cords

On Wed, Jun 10, 2009 at 9:56 PM , wimblees at aol.com wrote:
> As Conrad said, the screw on the top of the wippen can be used to 
> adjust the tension of the rep spring. But on older actions, these 
> screws are sometimes very hard to turn, or they've been screwed?down 
> so?much, going any further won't make any difference.
> What I've done is remove the spring from the cord, and bent it 
> backwards. That increases the tension, and will actually give you more 
> than you need.

The following does not apply to the original question about cord-type 
spring retainers, but on the subject of how to adjust various type of 
repetition springs I have a comment.  There was a type of wippen with an 
adjustment screw just in front of the repetion lever center pin, and 
directly engaging the jack at a slot near its center pin.  A peculiarity 
of this repetition spring is that it has an extra free-standing loop 
just below the lever in the length going to the jack.  I don't know if 
this was their design intent (or partly so), but you can make rough 
adjustments by expanding or compressing this extra loop, without 
disengaging anything.  If the adjusting screw has been turn to its limit 
and still too weak, back it out a little, expand the extra loop to 
roughly get more tension, then fine tune with the screw.

Frank Emerson