One pair of {HEAD ~ these sections} has a coupling 32, with the remaining portions having cooperating ends 34 for removably engaging the fittings 32 for linearly assembling each forward and rearward portion 24, 28 and 26, 30 to form {TAIL ~ the longitudinal frame members} 12 and 14 
One pair of { HEAD ~ these sections } has a coupling 32 , with the remaining portions having cooperating ends 34 for removably engaging the fittings 32 for linearly assembling each forward and rearward portion 24 , 28 and 26 , 30 to form { TAIL ~ the longitudinal frame members } 12 and 14
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH