{HEAD ~ The shaft} is drivingly coupled to the movable switch elements and {TAIL ~ the detent mechanism} 
{ HEAD ~ The shaft } is drivingly coupled to the movable switch elements and { TAIL ~ the detent mechanism }
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL