Instrument for measuring the distance of a flange to a hole

Details Instrument for measuring the distance of a flange to a hole Instrument for measuring the distance of a flange to a hole

1990-07-20

1991-12-24

Cuchlinski, Jr., William A.

Geometrical instruments

Gauge

Center, point, distance between centers, or centerline location

33644, 33797, G01B 2100

Patent

active

050740512

ABSTRACT:
A measuring instrument for measuring the distance from a hole, drilled at the intersection of a rib and a stringer, to the adjacent flange of the rib includes two arms projecting laterally out from the side of the instrument and forward to engage the flange. The arms are geared together at their inner ends within the body of the instrument to insure that the angles of both arms relative to the longitudinal axis of the body are equal to each other so that the longitudinal axis of the instrument in use remains perpendicular to the face of the flange. A spring loaded conical hole-centering probe protruding from the bottom face of the instrument fits into and centers itself in the hole and establishes a reference from which the flange is measured. A stylus, slidably mounted in the instrument and protruding from the front end thereof, contacts the face of the flange. A linear measuring gauge measures the position of the stylus in the instrument to provide an accurate measure of the distance of the flange to the hole in a direction perpendicular to the flange.

REFERENCES:
patent: 1199155 (1916-09-01), Burriss
patent: 2693033 (1954-11-01), Acker et al.
patent: 2780874 (1957-02-01), Puckett
patent: 3289446 (1966-12-01), Davey
patent: 3762057 (1973-10-01), Kaifesh
patent: 3962792 (1976-06-01), Stepanek et al.
patent: 4231158 (1980-11-01), Possati
patent: 4477978 (1984-10-01), Azuma
patent: 4586261 (1986-05-01), Beaupere
patent: 4612656 (1986-09-01), Suzuki et al.
patent: 4731931 (1988-03-01), Goodman et al.
patent: 4798004 (1989-01-01), Suzuki

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