With either embodiment a drive is operably connected to the shaft for causing the shaft to rotate about its axis and a drum mounted on {HEAD ~ the shaft} to rotate with {TAIL ~ the shaft} 
to rotate with
With either embodiment a drive is operably connected to the shaft for causing the shaft to rotate about its axis and a drum mounted on { HEAD ~ the shaft } to rotate with { TAIL ~ the shaft }
OTH 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 HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL