Optics: measuring and testing – Angle measuring or angular axial alignment
Patent
1984-09-17
1987-06-23
Evans, F. L.
Optics: measuring and testing
Angle measuring or angular axial alignment
356140, 356147, G01B 1126, G01C 100
Patent
active
046748733
ABSTRACT:
The satellite locator means comprises a dual optical instrument which provides a portable, multiple eyepiece unit containing a plurality of lenses and mirrors. The outer housing has a handle to insure the steadiness and accuracy of the readings when the unit is being used. One eyepiece has a magnifying lens which views a magnetic compass and a bubble level. Another eyepiece contains a lens system which includes a crosshair to aid in the accuracy of the unit. The second eyepiece views an adjustable mirror controlled by an elevational setting system, operated by a cam linkage assembly.
REFERENCES:
patent: 1875829 (1932-09-01), Suverkrop
Evans F. L.
Neiman Thomas N.
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