FIG 5 shows stator having {TAIL ~ an inner configuration} formed by {HEAD ~ two cylindrical sectors} which face each other, from which the inner surface projects at both sides of the cylindrical sectors as a semi arch , these semi arched section surfaces having two sectors , the smaller curvature of which is smaller than that of sectors ; also it is shown that curved surfaces gradually extend until they communicate with surfaces  
FIG 5 shows stator having { TAIL ~ an inner configuration } formed by { HEAD ~ two cylindrical sectors } which face each other , from which the inner surface projects at both sides of the cylindrical sectors as a semi arch , these semi arched section surfaces having two sectors , the smaller curvature of which is smaller than that of sectors ; also it is shown that curved surfaces gradually extend until they communicate with surfaces
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH