Geometrical instruments – Straight-line light ray type – Alignment device
Patent
1987-01-07
1989-02-14
Martin, Jr., William D.
Geometrical instruments
Straight-line light ray type
Alignment device
3320318, G01B 5255
Patent
active
048037850
ABSTRACT:
The invention relates to the alignment of motor vehicle wheels and axles. A first embodiment is disclosed for an apparatus comprising a means to hook over an adjustable mounting shaft on a steer wheel providing at least partial rotation thereof, a transverse suspension member attached to the hanger with a light source retained in a bracket and rotatably mounted on a non adjustable mounting shaft at one end thereof and a counterweight at the other. The connections of the hook means and the light source bracket to their respective mounting shafts are such that the mounting shaft is held between a clamping means and two points on each side of the hook means and light source bracket respectively. The clamping means disclosed is a threaded member with a spring loaded ball in one end which engages a circumferential groove on the respective mounting shaft. The second embodiment substantially comprises the light source bracket of the first embodiment adapted for mounting directly onto a directionally adjustable mounting shaft attached to a non-steering wheel of a motor vehicle. Preferred embodiments use laser light sources and include a calibration means to vary the orientation of said light source.
REFERENCES:
patent: 2882608 (1959-04-01), Tursman
patent: 3782831 (1974-01-01), Senften
patent: 4432145 (1984-02-01), Caroff
patent: 4440495 (1984-04-01), Bergstrom et al.
patent: 4569140 (1986-02-01), Hobson
patent: 4594789 (1986-06-01), Marino et al.
Bear Model 205-T Projectoe--Operating Instructions Applied Power, Inc., Bear, The Wheel Service Divison, Automotive Service Systems Group, Rock Island, Ill. 61201.
Josam Products, Sweden--Instructions Josam Laser Am--Excerpts--Josam lastbilteknik ab, Oerebro, Sweden.
Martin, Jr. William D.
Reilly Joyce Lynette
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