Dutch invention for the upright

Arnold Duin aduin@euronet.nl
Fri, 29 Dec 1995 14:42:00 +0100


>On 24 Dec 95 21:51:50 GMT, from rec.music.makers.piano
>
>>mortier@aol.com (Mortier) writes:
>
>>>Where are the magnets located ?

One permanent magnet is attached to the catcher shank and the other one in
a holder at the top of the jack. The distance between the magnets is very
short. The like poles of the magnets are facing each other so their is a
permanent repulsive force which makes it possible to increase repetion
speed.

The article in Eindhovens Dagblad on the internet doesn't contain any
drawings but I am  more than happy to send a drawing to anyone who is
interested. Just send me a e-mail (aduin@euronet.nl)

Arnold Duin
a Dutch freelance pianotechnician






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