said lever member having an elongate passageway therewithin extending substantially throughout the entire length thereof from adjacent said one pivoting {HEAD ~ extremity} thereof to {TAIL ~ adjacent} said free extremity thereof, 
to
said lever member having an elongate passageway therewithin extending substantially throughout the entire length thereof from adjacent said one pivoting { HEAD ~ extremity } thereof to { TAIL ~ adjacent } said free extremity thereof ,
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 REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH