a second housing pivotally connected to {TAIL ~ said first housing} for {HEAD ~ movement} about a first axis between an erected operative position and a folded inoperative position 
a second housing pivotally connected to { TAIL ~ said first housing } for { HEAD ~ movement } about a first axis between an erected operative position and a folded inoperative position
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH