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