{TAIL ~ Each car} 14 comprises a hanger arm 20 fixed to a carriage 22 supporting one or two grips 24, biased to the closed position by {HEAD ~ springs} 26 
{ TAIL ~ Each car } 14 comprises a hanger arm 20 fixed to a carriage 22 supporting one or two grips 24 , biased to the closed position by { HEAD ~ springs } 26
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH