Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Patent
1983-03-24
1984-04-17
Haroian, Harry N.
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
33413, 33DIG1, G01C 1510
Patent
active
044426100
ABSTRACT:
A support body is provided having first and second opposite sides with one of the opposite sides including surface structure facing outwardly of the one side and lying in a predetermined reference plane. The other of the opposite sides of the body includes a central outward projection including line anchoring structure for anchoring one end portion of a plumb line thereto in a manner such that the other end portion of the plumb line may extend outwardly and away from the body other side along a straight path disposed normal to the reference plane. The one side of the body defines an outwardly opening recess and the body includes projection structure projecting outwardly of an inner portion of the recess and including a pointed outer extremity terminating outwardly at least closely adjacent the reference plane and centered relative to the aforementioned path. The body further includes window structure defining an opening therethrough opening outwardly of the other body side spaced from said projection and into the recess for viewing the outer extremity of the projection structure from outwardly of the body other side. Also, the one side of the body includes structure defining an outwardly opening groove extending thereacross with a central portion of the defined groove aligned with the aforementioned path and the pointed outer extremity of the projection structure.
REFERENCES:
patent: 2545321 (1951-03-01), Tumminello
patent: 2794263 (1957-06-01), Cranmer
patent: 3068573 (1962-12-01), Sidwell
Haroian Harry N.
Jacobson Harvey B.
LandOfFree
Magnetic plumb bob holder does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetic plumb bob holder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic plumb bob holder will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-89119