Electric fence insulator

Claim 1

AN ELECTRICAL INSULATOR COMPRISING A HEAT-FLOWABLE, PLASTIC BODY PORTION TERMINATING AT ONE END IN A PERIPHERAL FLANGE, SAID BODY PORTION INCLUDING A THROUGH APERTURE EXTENDING THROUGH OPPOSITE ENDS THEREOF FOR RECEIVING A PRESSURE-APPLYING FASTENER THERETHROUGH, SAID BODY PORTION INCLUDING INTERMEDIATE WIRE-RECEIVING MEANS FOR REMOVABLY RECEIVING A CURRENT CONDUCTING WIRE, SAID BODY PORTION INDLUDING A INTEGRAL RIB PROJECTING AXIALLY BEYOND SAID PERIPHERAL FLANGE, INWARDLY AND ADJACENT THE OUTER EDGE THEREOF AND SURROUNDING SAID THROUGH APERTURE, AND A RIGID METAL SLEEVE CIRCUMJACENT TO THE OTHER SURFACE SAID RIB AND INCLUDING AN OUTWARDLY EXTENDING, CONTINUOUS FLANGE SEATED ON THE OUTER SURFACE OF SAID PERIPHERAL FLANGE OF SAID BODY PORTION AND ADJACENT THE OUTER EDGE THEREOF, SAID SLEEVE PROJECTED BEYOND THE TERMINAL END OF SAID RIB AND TERMINATING IN A TERMINAL EDGE INCLUDING A SERRATED PORITON OPENING IN THE DIRECTION TOWARD WHICH SAID RIB PROJECTS, SAID SLEEVE RESTRANNING SAID AGAINST DEFORMATION TION AND EXPANSION FLOW DURING INSTALLATION, AND SAID CONTINUOUS FLANGE OF SAID SLEEVE PROVIDING A PRESSURE BASE OUTWARDLY OF SAID RIB FOR DISRIBUTING THE APPLICATION OF PRESSURE ON SAID INSULATOR OUTWARDLY OF SAID RIB WHEN THE INSULATOR IS INSTALLED.