Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Patent
1983-02-28
1984-10-02
Little, Willis
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
33189, G01C 906
Patent
active
044739605
ABSTRACT:
A sensor mounted on a frame measures inclination of a sensitivity axis above two contact points on a surface on which the frame is positioned. The signal output of the sensor is converted to digital elevation readings of opposite polarity displayed through windows on opposite sides of a handle through which the frame is rotated about alternate contact points into measurement positions along a measurement line marked on the surface.
REFERENCES:
patent: 3816937 (1974-06-01), Burgin
patent: 3835546 (1974-09-01), Jaquet
patent: 3897637 (1975-08-01), Genho
patent: 3909952 (1975-10-01), Lagasse
patent: 4302962 (1981-12-01), Williams
Face, III Samuel A.
Face, Jr. Samuel A.
Jacobson Harvey B.
Little Willis
The Edward W. Face Company, Incorporated
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