INDICATING DEVICE FOR CHECKING PROTRUSION OF COUNTERSUNK RIVET HEADS Russian patent published in 1995 - IPC

FIELD: measuring facilities. SUBSTANCE: indicating device comprises a base with an axial hole and registering supports, and an indicator whose measuring rod fits into the axial hole of the base. The indicating device has an extension capable of reciprocating over the base and provided with an axial hole coaxial with the hole in the base, the indicator proper being secured on the extension. EFFECT: indicating device eliminates measuring errors caused by changes in the position of registering base, thereby improving accuracy of measurements. 2 dwg