Both such adjustments can thus be readily achieved from the exterior of the device by simple manipulations on {HEAD ~ the head} of {TAIL ~ the bolt} 
of
Both such adjustments can thus be readily achieved from the exterior of the device by simple manipulations on { HEAD ~ the head } of { TAIL ~ the bolt }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL