{HEAD ~ The present invention} also relates to a self centering spring assembly as set forth in the immediately preceding paragraph, and including {TAIL ~ axial movement means} mounted on said cylinder for permitting a body mounted on said axial movement means to move toward and away from said first pivotal connection 
{ HEAD ~ The present invention } also relates to a self centering spring assembly as set forth in the immediately preceding paragraph , and including { TAIL ~ axial movement means } mounted on said cylinder for permitting a body mounted on said axial movement means to move toward and away from said first pivotal connection
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