{TAIL ~ A pusher} 37, corresponding to the above returning spring 6, protrudes at the center of {HEAD ~ the terminal chambers} 32, 33, 34 
{ TAIL ~ A pusher } 37 , corresponding to the above returning spring 6 , protrudes at the center of { HEAD ~ the terminal chambers } 32 , 33 , 34
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH