Surveyor's rod

Details Surveyor's rod Surveyor's rod

1977-11-07

1979-04-03

Stearns, Richard R.

Geometrical instruments

Straight-line light ray type

Rod or target

248518, 248530, 294 51, G01C 1508

Patent

active

041469690

ABSTRACT:
A surveyor's rod apparatus including a plurality of sections which may be selectively connected together in end-to-end relationship to provide an elongated surveyor's rod that is visible over relatively long distances regardless of obstructions including vegetation and terrain between the rod and a sighting or surveying instrument. At least one section of the rod includes a leveling device to make certain that the rod is disposed along a vertical axis in the plane of the sighting instrument. The lower section of the rod is selectively connected to a base in a manner such that the base may be used for providing a flat area on which the base is subsequently located, or the lower section of the rod may be connected to the base in a manner that the base may be driven into the ground at a fixed location.

REFERENCES:
patent: 154018 (1874-08-01), Cassiano
patent: 293992 (1884-02-01), Wall
patent: 368013 (1887-08-01), Schad
patent: 1976264 (1934-10-01), Miner et al.
patent: 2218418 (1940-10-01), Cain et al.
patent: 2245901 (1941-06-01), Chaskin

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