Geometrical instruments – Straightedge type – Wall guide and plumb
Patent
1989-05-02
1991-03-26
Haroian, Harry N.
Geometrical instruments
Straightedge type
Wall guide and plumb
33408, G01C 1510
Patent
active
050018396
ABSTRACT:
A profiling tool, which is suitable for providing a reference for an internal or external brickwork corner at a right angle or a predetermined non-perpendicular angle, comprises a plate to be secured typically to a horizontal course of brickwork and a datum post arranged for locating a higher course of brickwork. The post is pivotally connected to the plate and is arranged to be set at an angle to the horizontal. The plate is fixed in place by means of anchors embedded in only a single course of bricks.
REFERENCES:
patent: 2143237 (1939-01-01), Byrnes
patent: 2656608 (1953-10-01), Craig et al.
patent: 2811778 (1957-11-01), Snyder
patent: 4689889 (1987-09-01), Reeves
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