The silencer of FIG 1 has {HEAD ~ a pot} like {TAIL ~ housing} 1 with a cylindrical pot casing 2 and with a pot bottom 3 
like
The silencer of FIG 1 has { HEAD ~ a pot } like { TAIL ~ housing } 1 with a cylindrical pot casing 2 and with a pot bottom 3
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH