A fixed scroll member 4 is secured to {HEAD ~ the cylindrical portion} 1A of {TAIL ~ the casing} 1 
A fixed scroll member 4 is secured to { HEAD ~ the cylindrical portion } 1A of { TAIL ~ the casing } 1
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH