Housing 32 is carried by mounting plates 14A, which are considered for {HEAD ~ practical purposes} to be {TAIL ~ part} of frame 14 
to be
Housing 32 is carried by mounting plates 14A , which are considered for { HEAD ~ practical purposes } to be { TAIL ~ part } of frame 14
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH