A reel comprises a drum assembly enclosed within a shell comprising upper and lower shell portions. The drum assembly is secured to the lower shell portion. The drum assembly comprises a motor-driven rotating drum rigidly secured between two discs, and a frame subassembly. The drum is adapted to received...http://www.google.fr/patents/US6279848?utm_source=gb-gplus-shareBrevet US6279848 - Reel having an improved reciprocating mechanism