The invention relates to the transmission of power and/or data from/to a stationary part of a machine tool 200 to/from an accessory 100 mounted in the spindle 210 of the machine tool 200. A first electrical link or interface 1a,1b,1c,1d provides electrical communication between the stationary part 200...http://www.google.fr/patents/US7364393?utm_source=gb-gplus-shareBrevet US7364393 - Machine adaptation
