1. base consists of marked lines on its inner surface. These lines make it convenient to staple different paper at suitable positions .
2. component staple-magazine has two small parallel perturbations on its end . This makes itsmovement smooth and limits its angle of inclination with respect to the raceway.
3. Coil spring is connected to the end of staple-magazine in such a way as to provide torque when it is in its inclined position. Point of connection is offset to the corner of staple-magazine.
4. The raceway consists of two lengthwise cuttings on both of its vertical walls . the cutting becomes wider in size towards the end . This facilitates greater angular inclination with respect to the base.The raceway , on the top of its vertical walls, has bents that keep staple-magazine in contact with the body and doesn't allow it to fall over the base after the punch.
5. The base has a small triangular projection on its end that can take out the stapled pin if needed.
    
    

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