said pivot means providing said pivot axis in offset relation to the centerline of {HEAD ~ said beam}, {TAIL ~ said offset} being above the axis of said beam so as to make for a decreased loading effect when the beam is below the horizontal but an increasing load effect when the beam is above the horizontal 
said pivot means providing said pivot axis in offset relation to the centerline of { HEAD ~ said beam } , { TAIL ~ said offset } being above the axis of said beam so as to make for a decreased loading effect when the beam is below the horizontal but an increasing load effect when the beam is above the horizontal
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