Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Patent
1982-09-29
1985-01-15
Haroian, Harry N.
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
33 1H, 33312, 33313, G01C 910
Patent
active
044931557
ABSTRACT:
A sensor (16) is affixed to a piece of rotatable equipment (10). The sensor has a rolling member (26) freely moveable within a cage member (18). In operation, the rolling member (26) contacts electrically conductive surfaces (28,30) disposed about the interior of the cage member. By determining which particular pair of surfaces are currently in contact with the rolling member, the orientation of the cage member with respect to the horizontal is known. The preferred embodiment utilizes a resistor network (34) and an electrical measuring device (48) for making this determination.
REFERENCES:
patent: 2338811 (1944-01-01), Hasbrook
patent: 3460028 (1969-08-01), Beaver et al.
patent: 4361192 (1982-11-01), Trowsdale
Comeau Joseph H.
Kowles Joseph E.
Lareau John P.
Mayo Kenneth R.
Runde Herbert A.
Combustion Engineering Inc.
Haroian Harry N.
Snyder Troxell K.
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