Source : Webster's Revised Unabridged Dictionary (1913)

Crimper \Crimp"er\ (-[~a]r), n.
   One who, or that which, crimps; as:
   (a) A curved board or frame over which the upper of a boot or
       shoe is stretched to the required shape.
   (b) A device for giving hair a wavy appearance.
   (c) A machine for crimping or ruffling textile fabrics.

Source : WordNet®

crimper
     n 1: someone who tricks or coerces men into service as sailors or
          soldiers [syn: {crimp}]
     2: a mechanical device consisting of a cylindrical tube around
        which the hair is wound to curl it; "a woman with her head
        full of curlers is not a pretty sight" [syn: {curler}, {hair
        curler}, {roller}]