Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Patent
1979-11-05
1981-11-03
Phillips, Charles E.
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
251247, 137 45, G01C 922, G01C 504
Patent
active
042977916
ABSTRACT:
A hose water leveling instrument in which a thin hose is filled with liquid and has an end to which a fixable reference instrument is connected. Another end of this hose has connected to it a freely-movable reading instrument. The housing of the reference instrument has on its rear side, a mounting surface with adhesive characteristics. A contacting section next to this mounting surface has a measuring scale which is easily read from different directions. An automatically opening and closing venting valve prevents run out of this measuring liquid, and is located in the reference instrument which is permanently filled with measuring liquid. The venting valve is in the form of a plane-convex body located in a valve chamber. The body on its plane surface facing a valve chamber wall, has a lever which, in a horizontal position of the reference instrument forces a ball-shaped closure body against a valve seat of a venting aperture when the plane-convex body, due to the weight of the lever is pivoted about a fulcrum on the periphery of the body.
REFERENCES:
patent: 2082723 (1937-06-01), Seward
patent: 2304625 (1942-12-01), Carlson
patent: 2351177 (1944-06-01), Younkman
patent: 2664645 (1954-01-01), Qualman
patent: 3443319 (1969-05-01), Dooley
patent: 3651581 (1972-03-01), Lehman
patent: 3766657 (1972-10-01), Hopkins
patent: 3816947 (1974-06-01), Taylor
patent: 3849898 (1974-11-01), Turloff
Fogiel Max
Phillips Charles E.
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