Ground slope indicating instrument

Details Ground slope indicating instrument Ground slope indicating instrument

1975-01-03

1976-07-06

Aegerter, Richard E.

Geometrical instruments

Miscellaneous

Light direction

33 88, 33174G, G01C 1500

Patent

active

039673812

ABSTRACT:
A ground slope indicating instrument is described that comprises a pointed shaft that may be pushed point first into the ground, and at least one slope indicating rod being attached to the shaft. A spirit bubble level indicator is mounted at the top of the shaft to assist in placing the shaft in a verticle position. The rod or rods may be attached to the shaft by pressing them into holes provided in the shaft therefor. Alternatively rod receiving holes are provided in the periphery of a hub that is rotatably mounted in a verticle plane to the verticle shaft.

REFERENCES:
patent: 1909267 (1933-05-01), Golt
patent: 1985614 (1934-12-01), Merrigan
patent: 2327982 (1943-08-01), Johnson
patent: 2665482 (1954-01-01), Rupp
patent: 2753633 (1956-07-01), Calver
patent: 2762128 (1956-09-01), Whelan
patent: 2923065 (1960-02-01), Lombard
patent: 3307264 (1967-03-01), Wolfe
patent: 3348312 (1967-10-01), Jones

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