Referring further to FIGS 3 and 4, the apparatus 14 includes {TAIL ~ a cap} 44 having a cylindrical depending wall portion 46 surrounding {HEAD ~ the cylindrical wall member} 32 and spaced therefrom in concentric relationship 
Referring further to FIGS 3 and 4 , the apparatus 14 includes { TAIL ~ a cap } 44 having a cylindrical depending wall portion 46 surrounding { HEAD ~ the cylindrical wall member } 32 and spaced therefrom in concentric relationship
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH