Geometrical instruments – Straight-line light ray type – Process
Patent
1978-03-21
1979-07-03
Stearns, Richard R.
Geometrical instruments
Straight-line light ray type
Process
33193, 3320318, 33288, G01B 11275
Patent
active
041595742
ABSTRACT:
For measuring the angular position of the rotational axis of a wheel, in relation to the longitudinal axis of the associated vehicle, a sight line is provided across an extension of the rotary axle of the wheel and substantially in a plane in common with the longitudinal axis, and that optical extensions of the sight line in both directions are compared with each other each in one point with respect to the positions of the points relative to the longitudinal axis.
REFERENCES:
patent: 2249226 (1941-07-01), Peters
patent: 2292969 (1942-08-01), Peters
patent: 2755554 (1956-07-01), MacMillan
patent: 3029515 (1962-04-01), Marteil
patent: 3409990 (1968-11-01), Vorpahl
patent: 4015339 (1977-04-01), Horvallius
Samuelsson Erik
Samuelsson Jonas
Stearns Richard R.
Tobin Donal B.
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