Instrument for indicating an angular position of an object

Details Instrument for indicating an angular position of an object Instrument for indicating an angular position of an object

1990-04-19

1991-04-02

Haroian, Harry N.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

G01C 904

Patent

active

050037005

ABSTRACT:
An instrument has a disc pivoted to a face board which has a graduation provided on a radially outward position. A weight is provided at a lower end of the disc so that a mass center of the disc is not coincide with the rotational axle. A pointer is fixed to a front end of the rotational axle. The disc is rotated by gravity when the instrument is placed against a surface of the object so that a relative position between the pointer and the graduation indicates an accurate angular position of the object.

REFERENCES:
patent: 1460741 (1923-07-01), Young
patent: 2326518 (1943-08-01), Beatty
patent: 3241245 (1966-03-01), Levine

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