Level with dual pointers

Details Level with dual pointers Level with dual pointers

1986-08-21

1987-07-21

Martin, Jr., William D.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

G01C 912

Patent

active

046808671

ABSTRACT:
A pointer-type level disclosed has a frame with a central transverse opening, a pair of depending pointers on the end of a shaft mounted on a single center bearing. A mounting assembly includes a pair of support disks for supporting the bearing and a pair of end caps that clamp the support disks to the sides of the frame.

REFERENCES:
patent: 1295352 (1919-02-01), Mosher
patent: 1338639 (1920-04-01), Lillberg
patent: 1468688 (1923-09-01), Elliott
patent: 1618262 (1927-02-01), Barger
patent: 1700278 (1929-01-01), Barnett
patent: 1705889 (1929-03-01), Bertram
patent: 1732335 (1929-10-01), Iverson
patent: 1844590 (1932-02-01), Morrison
patent: 2694866 (1954-11-01), Hanauer
patent: 2956346 (1960-10-01), White et al.

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