Geometrical instruments – Straight-line light ray type – Alignment device
Patent
1983-12-06
1986-01-28
Martin, Jr., William D.
Geometrical instruments
Straight-line light ray type
Alignment device
33185R, 356141, 408 75, G01C 100
Patent
active
045662029
ABSTRACT:
A laser apparatus for projecting the axis of rotation of a rotating member is provided. The apparatus includes a lasing element mounted in a housing for projecting a high resolution laser beam. The housing also has a mounting stud extending therefrom substantially colinear with the laser beam but extending from the opposite end of the housing. The mounting stud is adapted to be mounted in a rotating member such as the chuck of a rotating tool. Rotation of the rotating member with the laser apparatus therein causes the laser beam to generate an annulus on an object spaced therefrom. The center of the annulus defines the true axis of rotation of the rotating member. The rotating member and/or the non-rotating member then can be realigned with respect to one another to accurately position the axis of rotation.
REFERENCES:
patent: 2146906 (1939-02-01), Moller
patent: 2557029 (1951-06-01), Griffin
patent: 3801205 (1974-04-01), Eggenschwyler
patent: 3902810 (1975-09-01), Hamar
patent: 4045129 (1977-08-01), Hamar
patent: 4297031 (1981-10-01), Hamar
patent: 4382680 (1983-05-01), Hamar
patent: 4438567 (1984-03-01), Raiha
Casella Anthony J.
Hespos Gerald E.
Martin, Jr. William D.
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