At least one biasing member is held within the housing, the biasing member biasing {HEAD ~ the slider} against {TAIL ~ the second portion} of the arm 
against
At least one biasing member is held within the housing , the biasing member biasing { HEAD ~ the slider } against { TAIL ~ the second portion } of the arm
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH