Geometrical instruments – Straight-line light ray type – Alignment device
Patent
1980-04-30
1982-06-22
Martin, Jr., William D.
Geometrical instruments
Straight-line light ray type
Alignment device
3320318, 33336, 248481, 356155, G01B 11275
Patent
active
043355196
ABSTRACT:
This mechanism includes a housing having three, equi-angular spaced, radially projecting arms which carry pivotal hook members that are releasably engagable with the rim of a wheel to secure the housing on the wheel for rotation therewith. Each hook member is adjustable longitudinally of its associated arm so that the mechanism can be mounted on wheels of various diameters. A circular casing, which is mounted on the housing normally to rotate therewith, carries an adjustable mirror having on its rear face a triangular plate held resiliently against a plane surface on said casing. A plurality of adjusting screws on the casing are engagable with the mirror to tilt it selectively about any one of the three edges of the triangular plate to position the mirror's reflecting surface in a plane normal to the axis of the rotation of the wheel. The casing can be rotated manually relative to the housing to adjust the tilting edges of the plate.
REFERENCES:
patent: 3501240 (1970-03-01), Haynes
patent: 3552700 (1971-01-01), Mitchell
patent: 4011659 (1977-03-01), Horvallius
patent: 4185917 (1980-01-01), Alsina
Martin, Jr. William D.
SpinOptic, Inc.
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