Tool for pulling together and spreading spaced flanges

Claim 1

A TOOL FOR PULLING TOGETHER AND SPREADING LATERALLY OPPOSED FLANGES COMPRISING, FIRST AND SECOND ARMS HAVING OPPOSED FREE ENDS, SAID FREE ENDS HAVING INNER ARCUATE EDGES OPPOSING EACH OTHER AND OUTER SQUARED EDGES DIRECTED AWAY FROM EACH OTHER, FIRST AND SECOND ELONGATED JAW BLOCKS, PIVOTAL CONNECTING MEANS ON EACH JAW BLOCK COMPRISING A SLOT HAVING A BOTTOM WALL FOR RECEIVING A CORRESPONDING FREE END THEREIN, A PIVOT PIN CONNECTING EACH PIVOTAL MEANS WITH SAID CORRESPONDING FREE END TO PERMIT PIVOTAL MOVEMENTS OF SAID JAW BLOCKS ABOUT THE PIVOTAL AXES OF SAID PINS TOWARD AND AWAY FROM EACH OTHER IN SUBSTANTIALLY THE SAME PLANE, THE SHORTEST DISTANCE BETWEEN THE PIVOTAL AXIS OF EACH PIN AND SAID CORRESPONDING BOTTOM WALL BEING GREATER THAN THE DISTANCE BETWEEN SAID PIVOTAL AXIS AND ANY PORTION OF THE CORRESPONDING INNER ARCUATE EDGE, AND LESS THAN THE GREATEST DISTANCE BETWEEN SAID PIVOTAL AXIS AND THE CORRESPONDING OUTER SQUARED EDGE, EACH JAW BLOCK HAVING AN ELONGATED RECESS WITH FIXED OPPOSED LONGITUDINAL WALLS NORMAL TO SAID PLANE AND SPACED APART SLIGHTLY MORE THAN THE THICKNESS OF THE CORRESPONDING FLANGES, SAID RECESS OPENING AWAY FROM SAID PIVOTAL MEANS TO RECEIVE A FLANGE, AND MEANS FOR POSITIVELY MOVING SAID ARMS TOWARD AND AWAY FROM EACH OTHER SUBSTANTIALLY IN SAID PLANE.