Optics: measuring and testing – Angle measuring or angular axial alignment – With screen
Patent
1977-11-10
1979-09-25
Corbin, John K.
Optics: measuring and testing
Angle measuring or angular axial alignment
With screen
3320318, G01B 1126
Patent
active
041689097
ABSTRACT:
An optical toe gauge for measuring the toe-in and toe-out of vehicle wheels includes a pair of support arms respectively mounted from the wheel hubs and carrying light beam projector assemblies at the forward ends thereof so that the direction of each beam is dependent upon the toe of the associated wheel. Each arm also carries therebelow a screen on which is projected the beam from the opposite projector, each screen being disposed at approximately a 45.degree. angle to the corresponding wheel axis and facing inwardly between the wheels, each screen having toe increment lines thereon with enlarged spacing therebetween to facilitate reading of the toe measurement on the screen.
REFERENCES:
patent: 3307263 (1967-03-01), Castiglia et al.
patent: 3901604 (1975-08-01), Butler
patent: 3953134 (1976-04-01), Appel et al.
Knudsen, deceased Raymond G.
Nelson James W.
Corbin John K.
Rosenberger R. A.
Snap-on Tools Corporation
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