Geometrical instruments – Straightedge type – Wall guide and plumb
Patent
1982-09-22
1984-04-24
Little, Willis
Geometrical instruments
Straightedge type
Wall guide and plumb
33406, G01C 1510
Patent
active
044439547
ABSTRACT:
A masonry guide including an upright standard; a fork affixed to the standard adjacent its lowermost end for engaging the external corner of a building structure; a pair of arms pivotally engaging the standard at right angles to one another, the arms each carrying a common pin and an end pin adapted for placement upon the top surface of the walls under construction; and adjustment rods pivotally and angularly connected between the standard and each arm for vertically plumbing the standard and for providing arm support. Guide line blocks are attachable to the standard for holding horizontally extending guidelines in place. The masonry guide also preferably includes a pair of spirit levels adjacent the top of the standard for vertical positioning of the standard and may also include a measurement rule for setting of guidelines at proper height. An accessory pin, rearwardly extending from the standard, cooperates with the end pins of the arms to permit the device to be used on an internal corner.
REFERENCES:
patent: 1336004 (1920-04-01), Victoria
patent: 2420797 (1947-05-01), Raymond
patent: 2949673 (1960-08-01), Belcher
patent: 3348312 (1967-10-01), Jones
Horton Paul F.
Little Willis
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