Geometrical instruments – Straightedge type – Wall guide and plumb
Patent
1985-10-22
1987-04-14
Stearns, Richard R.
Geometrical instruments
Straightedge type
Wall guide and plumb
33410, B43L 1300
Patent
active
046567534
ABSTRACT:
A post support unit for use in establishing a straight line along which a wall of bricks or blocks may be built is provided with a pair of upper and lower plate units which have edges which are inserted into unmortared joints in a corner for the wall. The upper plate unit is supported on three legs and after the upper plate unit has been leveled into a horizontal plane, fasteners are tightened on the legs to clamp the upper and lower plate units to the bricks. A post has its lower end inserted into a socket on a lower plate unit. The post is then trued to the vertical and adjustment screws are tightened to lock the post at the true vertical. In other instances the post may be aligned at a predetermined angle to the vertical where the corner of the wall is to extend inwardly or outwardly relative to the true vertical. The post is locked in its predetermined orientation by adjustment screws.
REFERENCES:
patent: 2623289 (1952-12-01), Kampel
patent: 3039196 (1962-06-01), Jernigan
patent: 3096588 (1963-07-01), Cook
patent: 3104468 (1963-09-01), Sarles
patent: 3114975 (1963-12-01), Jones
patent: 3127683 (1964-04-01), Garton et al.
patent: 3127684 (1964-04-01), Ernst
patent: 3153285 (1964-10-01), Senko
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