Chain clamps

Claim 1

IN A WRENCH HAVING A PAIR OF RELATIVELY MOVABLE HAND GRIPPING MEMBERS, THE IMPROVEMENTS WHICH COMPRISES ONE OF SAID MEMBERS HAVING A FORWARD END EXTENDING BEYOND THE FORWARD END OF THE OTHER OF SAID MEMBERS, SAID ONE MEMBER FORWARD END FORMING A CLAW PORTION, A MOVABLE CLAMPING ELEMENT INTERCONNECTING SAID MEMBERS, SAID MOVABLE CLAMPING ELEMENT INCLUDING A LEG PIVOTALLY CONNECTED AT ONE END TO THE FORWARD END OF SAID OTHER MEMBER AND AT ITS OTHER END TO SAID ONE MEMBER BENEATH SAID CLAW PORTION; SAID ELEMENT INCLUDING AN INTEGRAL ARM PROJECTING FROM SAID LEG, A LENGTH OF CHAIN PIVOTALLY CONNECTED TO THE END OF SAID ARM, SAID CHAIN BEING ADAPTED TO BE WRAPPED PERIPHERALLY OF A WORK PIECE AND TO THEN EXTEND PAST SAID ARM, ARM HAVING A PORTION THEREOF OFF-SET FROM THE PLANE OF THE REMAINDER OF SAID ARM, SAID OFFSET PORTION HAVING A BASE PORTION OUT OF ALIGNMENT WITH SAID CLAW PORTION, SAID BASE PORTION AND THE REMAINDER OF SAID ARM DEFINING BETWEEN THEM AN OPENING IN ALIGNMENT WITH SAID CLAW PORTION WHEREBY SAID CHAIN IS DISPOSED WITHIN SAID OPENING WHEN EXTENDING PAST SAID ARM, SAID CLAW PORTION BEING ENGAGEABLE WITH SAID CHAIN UPON MANUAL OPERATION OF SAID MEMBERS WHEREBY SAID CHAIN GRIPS TIGHTLY AGAINST A MOJOR PORTION OF THE PERIPHERY OF SAID WORK PIECE.