Ceiling pendants and Ceiling Columns are designed for supply of medical gases, electric current and low current from the ceiling to the workplace of the medical specialists. They are primarily used in operating theatres, ARD, and ICU. The rotary pendant is terminated by a source column and a removable shelf is applied as a holder of medical devices. Rotary joints combined with a horizontal and swing arm can be controlled to any intermediate position within a room using an electric drive. All the rotary joints of the arms are thereby fitted with manually operated position interlock.