Interior gauge

Details Interior gauge Interior gauge

1978-04-03

1979-10-30

Little, Willis

Geometrical instruments

Area integrators

Electrical

33143L, G01B 728, G01B 712

Patent

active

041723252

ABSTRACT:
A hand-held interior gauge for measuring a bore includes a body provided with a measuring head capable of being introduced into the bore, and a measuring transducer connected to a movable feeler and adapted to produce output signals representative of the displacement of the movable feeler. The gauge also includes a mechanism for immobilizing the measuring head while in the bore, such that the feeler is movable angularly and radially in a surface limited by a circumference contained in a plane perpendicular to the axis of revolution of the bore, once the measuring head is immobilized. A driving mechanism forming a portion of the interior gauge coordinates the angular and radial movement of the movable feeler, and the output signals from the feeler are provided to a calculator which, in turn, provides intelligence information to an automatic display device for displaying the diameter of the bore.

REFERENCES:
patent: 1819144 (1931-08-01), Aulenback
patent: 2661540 (1953-12-01), Dulligan
patent: 2766532 (1956-10-01), Eisele
patent: 3030709 (1962-04-01), Eisele

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