Geometrical instruments – Area integrators – Electrical
Patent
1977-04-11
1978-09-12
Aegerter, Richard E.
Geometrical instruments
Area integrators
Electrical
G01B 356
Patent
active
041125800
ABSTRACT:
A device particularly suited for use in optics, having a planar sine plate mounted for rotation about a lateral axis, with the sine plate being capable of holding an optical device such as a diffraction grating. A pivot arm member is mounted for rotation about an axis perpendicular to the axis of rotation of the sine plate, and is in contact with the end of the plate over a portion of its rotational displacement. A calibrated drive such as a micrometer is mounted in position to make contact with the pivot arm near the end thereof, to drive the pivot arm inwardly and outwardly a determinable longitudinal distance. The distance that the pivot arm is driven by the micrometer is related to the angle of the plate as it rotates in contact with the pivot arm. Means are provided for minimizing frictional resistance at the contact between the pivot arm and the plate and between the pivot arm and the drive member of the micrometer.
REFERENCES:
patent: 2056948 (1936-10-01), Benson
patent: 2511443 (1950-06-01), McDowell
patent: 2592543 (1952-04-01), Dauber
patent: 2645026 (1953-07-01), Trbojevich
patent: 2669027 (1954-02-01), Wilson
patent: 3085345 (1963-04-01), Pearson
patent: 3195238 (1965-07-01), Grenell
patent: 3214841 (1965-11-01), Young
patent: 3389473 (1968-06-01), O'Connor
Fitzsimmons William A.
Lawler James E.
Aegerter Richard E.
Engstrom Harry C.
Fitzsimmons William A.
Little Willis
Long Theodore J.
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