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