Level

Details Level Level

1976-10-20

1978-02-14

Phillips, Charles E.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

G01C 928

Patent

active

040730620

ABSTRACT:
A level comprises a frame including a working surface, a level vial containing bubble indicating means and having bubble registry means adapted to register a level position when the longitudinal axis of the vial is positioned in a horizontal plane, and selectively adjustable mounting means for adjustably mounting the level vial to the frame for variable, selective angular alignment of the longitudinal axis thereof with respect to the plane of the working surface whereby the preselected orientation of the bubble indicating means with the register means of the level vial indicates a pre-selected angular relationship of the longitudinal vial axis and the working surface when the working surface is in contact with a surface being measured.

REFERENCES:
patent: 1133936 (1915-03-01), Coughlin
patent: 1172971 (1916-02-01), Frank
patent: 1300818 (1919-04-01), Collins
patent: 1703589 (1929-02-01), Myers
patent: 1822740 (1931-09-01), Loeser et al.
patent: 1927504 (1933-09-01), Rudolff
patent: 2692440 (1954-10-01), Walters

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