Steingraeber factory pictures, bridge agraffes & adjustable vertical hitchpins

Stephen Birkett sbirkett at real.uwaterloo.ca
Wed May 3 07:40:19 MDT 2006


>So goes the marketing claim. A couple of people, Carl Myer among 
>them, were intending to set up a strobe to see how valid the claim 
>is that the string excursion is kept vertical by the agraffe. So 
>far, no one has come up with supporting evidence - only conjecture.

This would be a candidate for some impromptu investigation with the 
high-speed imaging equipment I'll have in Rochester....if there 
happens to be any guinea pig bridge agraffe piano available. I don't 
recall seeing mention of one being taken to Rochester though.

Might also be interesting to compare the motion of the strings with a 
Wapin bridge set up to conventional bridge pinning.

Stephen

-- 
Dr Stephen Birkett
Piano Design Lab
Department of Systems Design Engineering
University of Waterloo, Waterloo ON Canada N2L 3G1
tel: 519-888-4567 Ext. 3792
Lab room E3-3160 Ext. 7115
mailto: sbirkett[at]real.uwaterloo.ca
http://real.uwaterloo.ca/~sbirkett


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