A drive arrangement comprising a drive shaft, a clutch arrangement operable, upon axial movement of the drive shaft occurring, to interrupt drive to the drive shaft, an axially movable interrupt shaft, a gear arrangement whereby the interrupt shaft is driven for rotation by the drive shaft at a speed slower than the rotary speed of the drive shaft, disconnect means operable to cause axial movement of the interrupt shaft, and transmission means for transmitting axial movement of the interrupt shaft to the drive shaft.