{TAIL ~ Such a device} is constructed in the form of a toggle mechanism on which further fine control movements can be imposed through {HEAD ~ a series} of adjustment possibilities 
{ TAIL ~ Such a device } is constructed in the form of a toggle mechanism on which further fine control movements can be imposed through { HEAD ~ a series } of adjustment possibilities
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 HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH