Geometrical instruments – Straight-line light ray type – Combined
Patent
1979-05-11
1981-12-15
Evans, F. L.
Geometrical instruments
Straight-line light ray type
Combined
33284, 248178, G01C 304, G01C 102
Patent
active
043052096
ABSTRACT:
An adaptor for mounting one instrument, such as an electronic distance measuring device, atop another instrument, such as a telescope or theodolite, for movement together about a horizontal axis with a base member attached to the upper device and presenting two downwardly facing cam surfaces and support members engaging the cam surfaces for vertical movement against springs to counteract the forces produced by the upper instrument as it pivots.
REFERENCES:
patent: 3823313 (1974-07-01), Unema
patent: 3874087 (1975-04-01), Nunlist
patent: 3895871 (1975-07-01), Stasser
patent: 4171907 (1979-10-01), Hill et al.
Brochure G1 311-Wild Dl 3 Distomat.
Brochure G1 324e-Wild Dl 10 Distomat.
Evans F. L.
Precision International, Inc.
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