Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Patent
1986-03-25
1987-05-12
Stearns, Richard R.
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
33381, G01C 928
Patent
active
046638563
ABSTRACT:
A kit is provided which is primarily designed to facilitate the construction of a fence with vertical posts and horizontal rails. The kit includes a leveling/plumbing device having a central level for indicating a horizontal position, and an end level for indicating a vertical position. The device is attachable to a workpiece being positioned, by separable fasteners of the hook and loop type. The user can then use two hands to position the workpiece while observing the desired one of the levels.
REFERENCES:
patent: 3826013 (1974-07-01), Baher
patent: 4295279 (1981-10-01), Sienknecht
patent: 4343093 (1982-08-01), Eadens
Hall Spencer S.
Kistner Joseph M.
Spiegel Joseph L.
Stearns Richard R.
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