Mitre box for e.g. I-shaped came, has support plate, with small recesses, surmounted on U-shaped section formed with symmetrical notches for angular cuts, and cutter guided by notches and placed in notches by exerting vertical pressure

摘要

The box has a support plate (1) surmounted on a U-shaped section in which symmetrical notches (2-9) are formed for angular cuts, where the notches guide a cutter. The cutter is placed in the notches, by exerting a vertical pressure, to effectuate the cuts. The notches (2-8) respectively form angular cuts of 30[deg], 45[deg], 54[deg], 60[deg], 67[deg]30 minutes, 72[deg], 75[deg] and 90[deg]. Small recesses of a value slightly higher than the thickness of the cutter are formed on the plate.