{TAIL ~ The frame} 20 is provided with a pair of {HEAD ~ transverse flanges} 51 which are adapted to overlie a pair of flanges 52 which project from the plate 48 
{ TAIL ~ The frame } 20 is provided with a pair of { HEAD ~ transverse flanges } 51 which are adapted to overlie a pair of flanges 52 which project from the plate 48
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH