{HEAD ~ The device} which is best seen in FIG 2 is used for effecting the vertical shifting of {TAIL ~ the upper feed roller} 10 
{ HEAD ~ The device } which is best seen in FIG 2 is used for effecting the vertical shifting of { TAIL ~ the upper feed roller } 10
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH