{TAIL ~ A proximity switch} may be employed to indicate the mold being in position in front of {HEAD ~ the sound detector} 
{ TAIL ~ A proximity switch } may be employed to indicate the mold being in position in front of { HEAD ~ the sound detector }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD