{TAIL ~ The bifurcated upper end} of the vertical leg of the support arm is connected to the upper end of the feed arm 22 by means of {HEAD ~ an upper layer feed rod} 37 
{ TAIL ~ The bifurcated upper end } of the vertical leg of the support arm is connected to the upper end of the feed arm 22 by means of { HEAD ~ an upper layer feed rod } 37
TAIL TAIL 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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH