This arrangement also operates as a safety feature which permits movement of the jogger assembly responsive to {HEAD ~ any impediment} which may strike or be struck by {TAIL ~ the jogger plate} and jogger 
This arrangement also operates as a safety feature which permits movement of the jogger assembly responsive to { HEAD ~ any impediment } which may strike or be struck by { TAIL ~ the jogger plate } and jogger
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH