Prism support

Details Prism support Prism support

1996-05-13

1997-12-30

Fulton, Christopher W.

Geometrical instruments

Straight-line light ray type

Rod or target

33295, G01C 1500

Patent

active

057016798

ABSTRACT:
A prism support for stabilizing a prism against a generally vertical fixed surface has a first elongate member removably mountable onto an upper end of a range pole so as to be generally aligned with the range pole when the first elongate member is mounted thereon, generally opposable second and third members rotatably mounted onto said first elongate member, and a cantilevered member selectively rotatably mountable onto the first elongate member for mounting a prism thereon. The second and third members may extend outwardly of the first elongate member, the second member lying in a first plane containing the first elongate member and the third member lying in a second plane containing the first elongate member, the second and third members selectively radially positionable about the first elongate member.

REFERENCES:
patent: 405058 (1889-06-01), Thompson
patent: 2245901 (1941-06-01), Chaskin
patent: 2666260 (1954-01-01), Schneider et al.
patent: 2840913 (1958-07-01), Houser
patent: 3057250 (1962-10-01), Griffth
patent: 4339880 (1982-07-01), Hall
patent: 4428122 (1984-01-01), Mann
patent: 4803784 (1989-02-01), Miller
patent: 5255441 (1993-10-01), Burgess

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