18 can be pivoted by the strap when the driven hub 170 is rotated rotation of the driven hub 170 therefore lifts the lid 18 from its closed position to its open position at one end of the output shaft 166 there is a lost motion connection 176 between the output shaft 166 and a hub 178 that has a strap 180 rigidly fixed thereto strap 180 is bolted to the seat 16 so that rotation of the strap 180 will lift the seat 18 from its down position to its up position the lost motion connection 186 comprises a pair of lugs 184 and 186 disposed around the end of the shaft 166 which are engaged by a radially projecting pin 188 in the end of the shaft when the shaft rotates through a selected angle u03b8 the selected angle u03b8 allows the shaft 136 to rotate sufficiently as to only raise the lid 16 by rotating the strap 172 after the strap 172 has raised the lid 16 due to the spring biased coupling between the spring loaded drive cams 168 and 169 and after the lid is stopped from rotation by engaging the toilet tank 22 the.