Geometrical instruments – Straightedge type – Wall guide and plumb
Patent
1984-04-24
1986-07-15
Frankfort, Charles
Geometrical instruments
Straightedge type
Wall guide and plumb
33410, G01C 1510
Patent
active
045998043
ABSTRACT:
An improved bricklayer's guide, and more particularly, a simplified and efficient adjustable support for the line used by masons as a guide for laying successive layers of bricks or blocks of various sizes. The bricklayer's guide or "line dog" consists of a combination of notched posts or standards that will cooperate in providing the desired width and a series of notches on one post that will engage an offset notch on a second post to provide the desired adjustment and secure the guide in place.
REFERENCES:
patent: 2215663 (1940-09-01), Frisk
patent: 2492044 (1949-12-01), Hulquist
patent: 2659973 (1953-11-01), Patzel
patent: 3119186 (1964-01-01), Stewart
patent: 3327395 (1967-06-01), Zenke
Frankfort Charles
Roberts, Jr. John S.
Scanlon Patrick R.
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