Importance

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Abstract

A fixture to be used in cutting 45.degree. mitered ends on wooden workpieces by means of a table saw having an adjustable miter gauge movable on the worktable past either side of the saw blade has in plan the outline of an isosceles right triangle. This fixture is mounted on the miter gauge with its base face engaging the normal working face of the miter gauge. With the miter gauge adjusted with its working face at approximately 90.degree. to the saw blade, when the gauge moved along one of the guide tracks in the worktable and then along the other guide track without changing its adjustment, the angles respectively defined by the saw blade and the adjacent face on the fixture will total 90.degree. irrespective of any deviation of the adjustment of the miter gauge from an accurately perpendicular relation with the saw blade. Thus with each of four workpieces having one end cut off on one side of the saw blade and the other end cut off on the other side of the saw blade, when the four workpieces are assembled to define a rectangular shape, each corner thereof will be an accurately right angled corner. In another embodiment, which is used independently of a miter gauge, the fixture has a slide bar fixed to its under surface in parallel relation with its hypotenuse side, the slide bar guides the fixture along a guide groove in the saw table, and each workpiece has one end miter cut while held against one working face of the fixture, and the other end miter cut while held against the other working face.

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First Claim