In another embodiment, {HEAD ~ an electrical generator} mounted on {TAIL ~ the pendulum} is rotated by a drive gear engagement of the generator shaft with a drive gear mounted on said axis and fixedly attached to the housing 
In another embodiment , { HEAD ~ an electrical generator } mounted on { TAIL ~ the pendulum } is rotated by a drive gear engagement of the generator shaft with a drive gear mounted on said axis and fixedly attached to the housing
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH