Gauge for measuring internal diameters

Details Gauge for measuring internal diameters Gauge for measuring internal diameters

1979-08-31

1980-09-02

Haroian, Harry N.

Geometrical instruments

Area integrators

Electrical

33169B, G01B 512, G01B 518

Patent

active

042199379

ABSTRACT:
This invention relates to a gauge for measuring the internal diameter of a passage. The gauge comprises a tapered calibrated cone with an extendable rod member. The tapered cone is inserted within the passage and the rod is extended to contact the edge of interior surface of the passage adjacent the diameter to be determined.

REFERENCES:
patent: 750449 (1904-01-01), Gillard
patent: 1210963 (1917-01-01), Mascher
patent: 2190899 (1940-02-01), Vierling

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