Electric test clamp

Claim 1

AN ADJUSTABLE CONTACT CLAMP FOR MULTI-CONDUCTOR ELECTRIC CABLE COVERED WITH INSULATION COMPRISING A TERMINAL SCREW MEANS WITH ONE END TERMINATING IN A PIERCING POINT, A BODY MEMBER THREADED AND ADAPTED TO ADJUSTABLY RETAIN SAID SCREW MEANS FOR AXIAL MOVEMENT THERETHROUGH WHEN DRIVEN, A BAND HAVING ONE END THEREOF SECURED IN SAID MEMBER AND THE OPPOSITE FREE END PORTION ADAPTED TO OVERLAP SAID ONE END IN SAID MEMBER WHEN SAID BAND IS WRAPPED AROUND THE PERIPHERY OF SAID CABLE, A SPRING MEANS IN SAID MEMBER RETAINED AND POSITIONED TO URGE SAID END PORTION INTO FRICTIONAL ENGAGEMENT WITH SAID MEMBER FOR TEMPORARILY HOLDING SAID BAND WHEN PRE-TENSIONED AROUND THE PERIPHERY OF SAID CABLE AND WHEREBY SAID POINT WILL PIERCE SAID END PORTION OF SAID BAND AND SAID INSULATION FOR ENGAGEMENT WITH AT LEAST ONE OF SAID CONDUCTORS IN SAID CABLE WHEN SAID SCREW MEANS IS DRIVEN A PREDETERMINED DISTANCE THROUGH SAID END PORTION AND SAID MEMBER.