{TAIL ~ The interior} of housing 2 on the spring 24 side of diaphragm 7 is vented to the atmosphere by a bore 30 formed through {HEAD ~ pin} 26 
{ TAIL ~ The interior } of housing 2 on the spring 24 side of diaphragm 7 is vented to the atmosphere by a bore 30 formed through { HEAD ~ pin } 26
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH