Self-centering bore hole gage

Details Self-centering bore hole gage Self-centering bore hole gage

1987-11-13

1989-07-04

Haroian, Harry N.

Geometrical instruments

Area integrators

Electrical

33544, 335012, G01B 500

Patent

active

048437220

ABSTRACT:
A self-centering bore hole gage includes a pair of centering points disposed on a guide block and a contact point and transducer disposed on a support block. The blocks are maintained in a biased apart relationship. The combination of biased apart blocks, points and transducer effectively self-center the gage in a bore hole so as to permit diameter and/or eccentricity measurements to be readily made by the transducer. The self-centering bore hole gage may include a plurality of measuring heads to simultaneously measure various ranges of diameter.

REFERENCES:
patent: 2239981 (1941-04-01), Terry et al.
patent: 2369909 (1945-02-01), Mestas
patent: 2385157 (1945-09-01), Nilsson et al.
patent: 3732624 (1973-05-01), Eisele

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