In the fitting of trim and decorative pieces to the surface of wall surfaces which meet at angular junctions it has been found that there is no effective way of translating the angle of the wall juncture to a miter saw for cutting the trim. Three degreed scales allow the user to simultaneously determine ģ) the miter angle setting to be used on a miter saw. More specifically, this invention is, in a common embodiment, a hand held scale that allows for measurement of both inside and outside acute and obtuse angles. It also has direct applications in the graphic arts field, the engineering and drafting fields and other manufacturing situations where angle measurements are performed. This invention has to do with a measuring tool for use in the construction profession with particular applicability to finish carpentry, piping layouts, floor and ceiling installations and cabinetry. The invention in accordance with claim 4 wherein said indexing means include an aperture in each of said adjustable legs and scribe marks emanating from said aperture onto a respective one of said legs. ![]() A measuring means for allowing the precise measurement of internal and external acute and obtuse angles comprising:Ī full circle disc having at least one scale scribed thereon including a full angle measure in degrees, a bisected angle in degrees and a scale reading in increments used on scales of power miter saws Ī pair of adjustable legs, attached at one end thereof defining a pivot point, having a locating means for locating said legs on said full circle disc including a circular pilot opening having a diameter defined by said full circle disc, said pilot opening being located at the center of said full circle disc and a cylindrical pilot head having a diameter substantially equal to said diameter of said circular pilot opening attached to said adjustable legs at the pivot point thereof and said adjustable legs, each provided with indexing means, whereby said indexing means of said legs will align with incremental scribe marks of said scales on said full circle disc when said cylindrical pilot head is placed into said circular pilot opening.ĥ. The invention in accordance with claim 1 wherein said indexing means include apertures in said adjustable legs.Ĥ. The invention in accordance with claim 1 wherein said at least one scale include a full angle meansure in degrees, a bisected angle measure in degrees, and a scale reading in increments used on scales of power miter saws.ģ. ![]() A measuring means for allowing the precise measurement of angles comprising:Ī base including means defining at least a segment of a circle having a radius and defining a center point of said segment of the circle, at least one scale extending along said segment defining the angle of measure around said segment,Ī pair of adjustable legs attached at one end thereof defining a pivot point and a locating means for removably locating said legs on said base, said locating means comprised of a pilot opening at said center point on said base and a pilot head, sized to substantially match said pilot opening, attached to said adjustable legs at said pivot point thereof and indexing means provided on each of said adjustable legs at a location so that said indexing means will align with said at least one scale when said pilot head is placed into said pilot opening.Ģ.
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