a toilet is constructed such that the toilet seat is rotatably arranged with respect to its circumferential direction . the toilet seat comprises a stationary part and a rotating part . the rotating part forms the seating surface of the toilet seat and is internally provided with a substantially conical circular track for engaging substantially conical bearing surfaces of rollers rotating about a substantially vertical axis and mounted in laterally translatable roller carrying members . the rotatable part of the toilet seat is driven by a round belt or cord cooperating with a pulley - like groove therein . a device for the liquid cleaning and disinfecting of the seat surface only extends over a segment of the toilet seat . during the seat cleaning operation the toilet seat is moved by the belt or cord . by means of the cleaning device there is accomplished cleaning of the toilet seat .