FIG 23 depicts {HEAD ~ the use} of movable safety barrier system 70 on {TAIL ~ one side} of the roof 15 or peak of a building 24 
FIG 23 depicts { HEAD ~ the use } of movable safety barrier system 70 on { TAIL ~ one side } of the roof 15 or peak of a building 24
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH