Construction square
OwnerBrien Loganinventor
Life of this patent
Estimating the term…
Abstract
An L shaped versatile, combination construction square for a carpenter having measured marks for all common framing combinations about its six sides. A series of template openings, as well as two adjustable base arms able to set angles for setting plumb, lock into a position to cut rafter tails and birds mouths as well as stair treads and risers. It has a precise scale that accommodates a traditional carpenter's rectangular 3/16 inch wide pencil lead that allows for ⅛ inch increments that can be transferred the length of a board using the adjustable arms. It also functions as a framing square and a laser angle finder.
Claims7
A compound square for a framing carpenter or woodworker, comprising:
- a planar body having a front face, a back face and six edges defining an inside corner and five outside corners;
- wherein each of said six edges has a graduated linear scale marked on said front face and said back face;
- a single row linear series of parallelogram openings equally spaced ½ of an inch apart, with a linear axis parallel to at least one of said graduated linear scales, and wherein there is a ⅛ inch distance between nearest corners of adjacent said parallelogram openings in said linear series of parallelogram openings wherein said parallelogram openings have interior angles of approximately 60 degrees and approximately 120 degrees and have sides approximately 7/16 of an inch and approximately ¼ of an inch in length.
A compound square for a framing carpenter or woodworker, comprising:
- a planar body having a front face, a back face and six edges defining an inside corner and five outside corners;
- wherein each of said six edges has a graduated linear scale marked on said front face and said back face;
- at least one linear, graduated arm pivotally affixed at a corner of said planar body;
- at least one opening formed through said planar body, said opening having a pair of opposing sides each residing parallel to at least two of said six edges;
- a single row, linear series of parallelogram openings equally spaced ½ of an inch apart, having a linear axis parallel to at least one of said graduated linear scales, and wherein there is a ⅛ inch distance between nearest corners of adjacent said parallelogram openings in said linear series of parallelogram openings;
- wherein said parallelogram openings have interior angles of approximately 60 degrees and approximately 120 degrees and have sides approximately 7/16 of an inch and approximately ¼ of an inch in length.
Dependencies are inferred from the claim text.