A clutch assembly for transmitting power from an oscillating drive shaft to a driven mechanism includes a clutch member having a rotatable input component for receiving power from the oscillating drive shaft, a rotatable output component for transferring power to the driven mechanism and a spring mounted at one end to the input component and having an opposite end secured in a fixed position. The spring biases the input component into engagement with the output component upon rotation of the drive shaft in one direction and biases the input component toward the output component upon rotation of the drive shaft in an opposite direction. The assembly preferably includes a plurality of clutch members for sequentially transmitting power from a drive shaft to the driven mechanism to cause rotation thereof.