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