Layout device

Details Layout device Layout device

1989-05-03

1990-05-01

Haroian, Harry N.

Geometrical instruments

Straightedge type

Cord type

33414, 33 1LE, 33756, B44D 338, B43L 700

Patent

active

049215078

ABSTRACT:
A layout tool includes a container having elongate generally rectangular-shaped front and rear walls, rectangular end walls, and a horizontal bottom wall. An opening extends through the central portion of the front adjacent its lower edge and extends into and upwardly through the bottom wall. The front wall has a linear scale on the exterior surface thereof. A chalk line has one end thereof extending through the opening in the front and bottom wall and is wound upon a reel of a chalk line mechanism. A weight is positioned in the container and stabilizes the latter against movement when the chalk line is stretched, pulled taut, and snapped against a surface to form an accurately located layout line on the surface.

REFERENCES:
patent: 3122836 (1964-03-01), Aciego
patent: 3662471 (1972-05-01), Lynde

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