Patent ID: 6434850
Filing Date: 2002-08-20
Classification: G01B

Abstract:
An instrument for measuring an apical angle of a countersink with an inner surface comprising a jig for positioning a probe; three branches resting against the inner surface of the countersink; a contact lever pivoting on at least one of said three branches and resting axially inside the countersink; a sensor resting against said contact lever remote from an articulation between said lever and said branches, said branches being securely fixed to said probe, said contact lever only pivoting about said articulation, said branches and said contact lever centering said jig in said countersink, a dial being fixedly connected to said sensor, one of said three branches being connected to said probe and measurement of pivoting of said contact lever with respect to the associated branch providing a direct measurement of the apical angle of the countersink.