Shoe last

Claim 1

A SHOE LAST FOR USE WITH A MOLDING MACHINE FOR FABRICATING A SHOE LOWER AND JOINING IT TO A SHOE UPPER HAVING MOLD STRUCTURE INCLUDING A TWO-PIECE SIDE, A SOLE PLATE AND A TOE PLATE AT LEAST SOME OF WHICH ARE ADAPTED FOR MOVEMENT INTO A MOLDING POSITION TO DEFINE A CAVITY, SAID LAST DEFINED BY A SUPPORT INCLUDING A HEEL, TOE AND ANKLE PORTION FOR SUPPORTINGLY RECEIVING SAID SHOE UPPER, SAID LAST AND SHOE UPPER BEING ADAPTED FOR MOVEMENT INTO SAID CAVITY SUBSTANTIALLY BOUNDED BY SAID MOLD AT THE INCEPTION OF THE MOLDING PROCESS DURING WHICH TIME SAID SHOE LOWER IS FABRICATED, A HEATING ELEMENT CONTAINED WITHIN SAID SHOE LAST AND GENERALLY TRAVERSING THE PORTION BETWEEN SAID HEEL AND TOE FOR PROVIDING THE NECESSARY HEAT REQUIRED TO JOIN SAID SHOE UPPER AND LOWER, AND INSULATION MEANS IN THE FORM OF A SHEET OF HEAT INSULATING MATERIAL DISPOSED WITHIN SAID LAST AND POSITIONED BETWEEN SAID ELEMENT AND SAID LAST BOTTOM THEREBY TO DIVIDE THE LAST INTO AN UPPER AND LOWER SECTION AND MAINTAIN SAID LAST LOWER AT A TEMPERATURE SUBSTANTIALLY BELOW THE TEMPERATURE OF SAID LAST UPPER.