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Taper vs Reverse Taper

Author: BobD
Date: 2008-07-06 12:07

A search here and on Google reveals a lot of talk about "taper" and "reverse taper" leaving the reader possibly confused. It appears that in the "non-clarinet" world Taper i.e. Regular or Normal Taper....means "going from a larger diameter to a smaller diameter". "Going" can mean: From Top to Bottom or it can mean "in the direction of fluid flow from source to destination". Using this definition, then, a bottle cork has a Regular or Normal taper. If the above is correct then a Reverse Taper would be smaller at the entry end and larger at the exit end i.e. the reverse of a bottle cork.
However, the following is a typical Clarinet World comment:
"The Moennig barrel is based on a reverse cone taper. This taper is usually from .589" tapering to .580". Thus, the lower end of the barrel is smaller than the bore at the upper end of the upper joint."
It appears (to me) that Clarinet World interpretation of the concept of taper is opposite to the Real world. According to Real World terminology a clarinet bell would be said to have a Reverse Taper but Clarinet World would say the bell has a
Regular taper.
Perhaps the (my) confusion is due to the fact that I don't know what a "Reverse Cone Taper" or a Reverse Cone....or even a Cone is.
My post here does not solicit opinions on what a Moennig taper is but, rather, why it is referred to as Reverse or Reverse Cone. A highway traffic cone is smaller at the top than the bottom and an icecream cone is......uh....

Bob Draznik

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BobD

2008-07-06 12:07