The apparatus comprises an oscillating plate unit that vibrates in {HEAD ~ a direction} transverse to {TAIL ~ a belt means} 
transverse to
The apparatus comprises an oscillating plate unit that vibrates in { HEAD ~ a direction } transverse to { TAIL ~ a belt means }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL