Quick adjustable clamp

Claim 1

A QUICK ADJUSTABLE CLAMP COMPRISING: A BODY; A FIRST GRIPPING JAW SECURED TO SAID BODY; AN ELONGATE BEAM SLIDABLY MOUNTED FOR LIMITED AXIAL MOVEMENT WITH RESPECT TO SAID BODY AND SAID FIRST JAW THORUGH A SHORT DISTANCE COMPARED TO THE LENGTH OF SAID BEAM; SAID BEAM HAVING A CAPTIVE END TERMINATING AT SAID BODY AND A FREE END SPACED THEREFROM; A SECOND GRIPPING JAW SLIDABLY MOUNTED ON SAID BEAM FOR MOVEMENT ALONG THE MAJOR PORTION OF THE LENGTH OF SAID BEAM BETWEEN SAID FREE END AND SAID BODY AND INCLUDING MEANS TO TEMPORARILY SECURE IT TO SAID BEAM IN SELECTED POSITIONS OF ADJUSTMENT WHEREIN IT MOVES AXIALLY WITH SAID BEAM; AND A RESILIENT FORCE UNIT ATTACHED TO THE CAPTIVE END OF SAID BEAM AND YIELDABLE TO MANUAL FORCE TO PERMIT EXTENSION OF SAID BEAM FROM ITS RETRACTED POSITION TO ITS LIMITED EXTENDED POSITION; SAID FORCE UNIT BEING OPERABLE TO RETRACT SAID BEAM FORCEFULLY TO APPLY A RESILIENT GRIPPING FORCE; THE LIMITED AXIAL MOVEMENT OF SAID BEAM PROVIDING A CORRESPONDINGLY NARROW RANGE OF GRIP OPENING LENGTHS BETWEEN SAID JAWS AND THE ADJUSTABLE POSITIONING OF SAID SECOND JAW ON SAID BEAM SERVING TO GREATLY INCREASE THE RANGE OF GRIP OPENING LENGTHS; SAID SECOND JAW BEING FORMED OF RELATIVELY SOFT MATERIAL AND INCLUDING AN INSERT OF RELATIVELY HARD MATERIAL TO ENGAGE SAID BEAM IN BINDING RELATION.