Downbearing gauge/David Love

[Greg Newell]

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Ron,
         Was your late father in law in the piano business? For how long?=20
Is that how you came into the bus.? Did you work for him? Is that when you=
=20
and Loui met? Inquiring minds ......etc. ...  or maybe just plain nosey.

Greg

At 11:19 PM 7/10/2003, you wrote:


>>  I was wondering
>>what the spacing was on the original.
>
>David,
>I have what I think is one of the originals from my father in law's=20
>estate. the outside pins are centered at 1.92" apart (0.185" pins), with=20
>the plunger in the middle.
>
>
>>I haven't done the math yet, but it
>>seems that the outer legs should be a set distance apart so that the
>>reading from the plunger will actually mean something, or can be=
 translated
>>easily into degrees.
>
>Not possible, since the degrees figured from this sort of gage depends on=
=20
>the pin row spacing on the bridge. Given two bridges with identical front=
=20
>and rear bearing angle measurements and different pin row spacings, the=20
>one with the wider row spacing would read less bearing on the dial than=20
>the one with narrower row spacing. Then too, the outside legs on this gage=
=20
>are flat bottomed. with a slight chamfer.
>
>You don't even need the trig book for this one, just make a quick sketch=20
>as a visual aid and it's easy to see.
>
>
>>  I don't know, but something tells
>>me I'll be hearing from Ron N. on this one.
>
>Now why would you think that? <G>
>
>Ron N
>
>_______________________________________________
>pianotech list info: https://www.moypiano.com/resources/#archives
>

Greg Newell
Greg's piano Fort=E9
mailto:gnewell@ameritech.net=20

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