The "Jolly Loop" (Modified by Kent Swafford)

[Roger Jolly]

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Hi Del
               I have too much evidence to the contrary.  The end of the 
knot becomes a theoretical termination point, and the helix is almost 
incapable of flexing.
So many pianos have about a 55mm knot at A0,  and only about 7-10mm of 
flexible string.  James had a clear demonstration model at the Cal state 
convention.  The reaction of all that saw it was wow! The vibration time of 
the new knot vs an English loop is about 3 times greater.  To the previous 
writer, it is not Del's hitch pins.  But was developed and patented by 
Harold Conklin of the Baldwin piano company.

Whilst Conklin's design was a big step forward. I feel the knot also adds 
some thing.  The feed back on my prototype 6'4'' Knabe at NAMM received 
very positive results. Side by side comparisons of the three models re 
scaled, has been a very obvious improvement..

Regards Roger








>The German loop is unnecessary with vertical hitches. Of the two, vertical
>hitches are acoustically superior but they are different. Most piano
>manufacturers are frightened out of their teeth when they encounter anything
>different.
>
>Del
>
>
>_______________________________________________
>pianotech list info: https://www.moypiano.com/resources/#archives

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