Geometrical instruments – Straight-line light ray type – Alignment device
Patent
1982-05-24
1984-05-15
Little, Willis
Geometrical instruments
Straight-line light ray type
Alignment device
33412, 33277, 33298, G01C 1500
Patent
active
044479620
ABSTRACT:
A device having four engagement points movable along a bore and provided with an optical target or gage adjustable in cross directions normal to the bore axis and a probe mounted for rotation on the gage and engageable with the cylindrical surface of the bore for determining concentricity of the gage and the bore axis.
REFERENCES:
patent: 1403156 (1922-01-01), Gonzales
patent: 2542030 (1951-02-01), Hoppe
patent: 2958951 (1960-11-01), Altson
patent: 3599336 (1971-08-01), Walsh
Little Willis
USM Corporation
White Vincent A.
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