Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Patent
1989-03-30
1991-02-05
Will, Thomas B.
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
116215, G01C 910
Patent
active
049893343
ABSTRACT:
A tilt indicator includes a plurality of compartments with one or more compartments having an indicator inside. An exit from each compartment permits one or more indicators to leave. As the degree of tilt increases, the absence of an indicator in one or more compartments will indicate the degree of tilt.
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