specially adapted for curved jibs

Full Title

Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam (dislodging machines with slitting means E21C27/02, E21C27/10, E21C27/18) > Machines slitting solely by one or more cutter chains moving unidirectionally along jibs > Chains or chain guides > Chain guides > specially adapted for curved jibs