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