Patent ID: 7021688

Claim:
In combination: A) a saw bed; and B) a test core clamping device comprising: i) a longitudinally split tube including a split portion defined by opposing edges; ii) a longitudinal base to which said longitudinally split tube is attached along its length; and iii) a tightening device comprising: a) a first threaded bracket affixed in the vicinity of one of said opposing edges; b) a second bracket affixed in the vicinity of the other of said opposing edges; c) a threaded clamping bolt inserted through, rotating freely within and longitudinally fixed to said second bracket such that rotation of said clamping bolt in one direction causes said opposing ends to move apart and rotation of said clamping bolt in the opposite direction causes said opposing ends to move toward each other, said test core clamping device being removably attached to said saw bed; and d) an insert comprising a second longitudinally split tube having an exterior periphery, a split portion defined by second opposing ends and a plurality of fins extending radially from said exterior surface such that when said insert is slideably placed inside of said first longitudinally split tube said fins frictionally engage said interior surface.