As shown, {TAIL ~ two separating units} 1 on the left side of frame 2 hold a stack of insert material while the separating unit 1 on {HEAD ~ the right} holds a stack of newspapers or other material 
As shown , { TAIL ~ two separating units } 1 on the left side of frame 2 hold a stack of insert material while the separating unit 1 on { HEAD ~ the right } holds a stack of newspapers or other material
OTH OTH OTH 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 HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH