Throat, mouthpiece

DEFINITION

The throat of a mouthpiece is the edge (region of transition) between cup and minimum bore. Throat profiles vary considerably from sharp-edged to smoothly blended. When the profile of the throat approximates to a section of a circle, the degree of curvature can be expressed in terms of the radius of curvature of the throat. Some writers use the term `throat' to mean the region of minimum bore

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