In {HEAD ~ one embodiment} of the invention the first carrier is stationarily mounted with {TAIL ~ respect} to the support structure 
In { HEAD ~ one embodiment } of the invention the first carrier is stationarily mounted with { TAIL ~ respect } to the support structure
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH