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