The arm 36 is shown constructed with a spring member 38 mounted about a shaft 81, an aperture 82 is formed within {HEAD ~ the lever member} 36 for {TAIL ~ entry} of shaft therein 
for
The arm 36 is shown constructed with a spring member 38 mounted about a shaft 81 , an aperture 82 is formed within { HEAD ~ the lever member } 36 for { TAIL ~ entry } of shaft therein
OTH 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 HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH