A splice head for use with a modular wire connector, to work with and hold the wires while installing them in the connector, particularly for wires of differing diameters. The splice head includes a coil spring loosely arranged on a bar and movable axially thereon. By selecting an appropriate location...http://www.google.de/patents/US5832593?utm_source=gb-gplus-sharePatent US5832593 - Splice head for insulated telecommunication wires
