Marking gauge for measuring and marking French mats

Details Marking gauge for measuring and marking French mats Marking gauge for measuring and marking French mats

1976-04-01

1977-06-07

Haroian, Harry N.

Geometrical instruments

Scriber

Curved line

33112, B43L 700

Patent

active

040273962

ABSTRACT:
A marking gauge for measuring and marking desired distances on French mats. The gauge has a sheet shaped as an isosceles right triangle for alignment with a corner of a cutout area. An elongated rectangular member is secured to and overlies the sheet, having a short edge coinciding with the base of the triangle from the midpoint thereof to one 45.degree. vertex thereof and a first long side leading from the midpoint of the base through the 90.degree. vertex, bisecting it. A second long side is parallel to the first long side and extends from the 45.degree. vertex. The rectangular member provides a pocket open along each long side and closed at each end, one end being located precisely directly above the 90.degree. vertex. Inside the pocket is a removable marker scale having index markings along the first long side.

REFERENCES:
patent: 313197 (1885-03-01), Gaylord
patent: 490893 (1893-01-01), Austin
patent: 975079 (1910-11-01), Royal
patent: 2315893 (1943-04-01), Chapin
patent: 2652629 (1953-09-01), Prucker
patent: 2682709 (1954-07-01), Watson
patent: 3156984 (1964-11-01), Palmer

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