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