Geometrical instruments – Straight-line light ray type – Alignment device
Patent
1977-08-09
1979-10-30
Martin, Jr., William D.
Geometrical instruments
Straight-line light ray type
Alignment device
3320318, G01B 5255, G01B 11275
Patent
active
041723260
ABSTRACT:
A wheel alignment apparatus including a pair of open-sided rectangular frames pivoted at their ends with respect to each other. The inner, or wheel engaging frame, is placed over a vehicle wheel or the like such that the outer or sighting frame extends laterally of the wheel. Aligning idicia are supported on the outer sighting frame so that, for example, a front wheel positioned within the wheel engaging frame may be aligned longitudinally with respect to the rear tire positioned within a similar wheel engaging and pivoted sighting frame.
REFERENCES:
patent: 789843 (1905-05-01), Dennis
patent: 2958134 (1960-11-01), Wilkerson
Martin, Jr. William D.
Semmes David H.
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