Geometrical instruments – Area integrators – Electrical
Patent
1982-07-06
1985-02-19
Martin, Jr., William D.
Geometrical instruments
Area integrators
Electrical
33476, 33494, G01B 304
Patent
active
044996667
ABSTRACT:
A framing layout tool facilitates the accurate and quick layout of framing marking for a structure. A bidirectional measuring scale provides a means for measuring and marking the location of any size door or window opening. Window and door marking tabs are also positioned along the main bar of the tool for obtaining markings for window and door openings of predetermined widths. A channel marker extends from the edge of the tool and is of a predetermined width corresponding to the width of the channel. The channel marker includes a central opening for use in conjunction with the outer stud markers for marking studs with spacings greater than the equidistantly spaced stud markers. A plurality of stud markers corresponding in width to a stud are spaced equidistantly along one edge of the layout tool.
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patent: 3665612 (1972-05-01), Albright
patent: 4212108 (1980-07-01), Jackson
patent: 4301596 (1981-11-01), Sedlock
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