Powder melting torch

Claim 1

IN A TORCH FOR SUPPLYING POWDERED METAL OR THE LIKE THROUGH A FLAME TO A WORK PIECE: A TORCH BODY HAVING A CHAMBER THEREIN AND FROM WHICH A COMBUSTIBLE GAS MIXTURE IS DISCHARGED THROUGH A TIP; AN OUTER TUBE EXTENDING UPWARDLY FROM THE TORCH BODY AND COMMUNICATING, THROUGH THE TORCH BODY, WITH THE CHAMBER; A RESILIENT TUBE WITHIN THE OUTER TUBE AND COMMUNICATING WITH A SOURCE OF POWDER WHICH FALLS BY GRAVITY THROUGH THE RESILIENT TUBE DIRECTLY INTO SAID CHAMBER WHENCE IT IS CARRIED BY SAID COMBUSTIBLE MIXTURE TO SAID TIP; MEANS INCLUDING A HANDLE AND A PLUNGER INDEPENDENT OF SAID HANDLE AND ACTUATED BY SAID HANDLE TO PINCH SAID RESILIENT TUBE; AND MEANS FOR OF POWDER THROUGH THE RESILIENT TUBE; AND MEANS FOR MOUNTING SAID HANDLE ON SAID TORCH BODY, SAID LAST MEANS INCLUDING A SUPPORT EXTENDING FROM SAID TORCH BODY, SAID HANDLE BEING PIVOTALLY MOVABLE WITH RESPECT TO SAID SUPPORT; THE IMPROVEMENTS WHICH COMPRISE: A VALVE MOUNTED IN SAID OUTER TUBE AND ADAPTED TO SHUT OFF FLOW OF POWDER FROM SAID SOURCE INTO SAID RESILIENT TUBE; MEANS INCLUDING A SPRING FOR AUTOMATICALLY RETRACTING SAID PLUNGER WHEN SAID HANDLE IS RELEASED, WHEREBY TO PERMIT THE PINCHED AREA OF SAID RESILIENT TUBE TO REGAIN ITS CYLINDRICAL FULLY OPEN FORM OR CONDITION; AND A CAM SURFACE ON SAID HANDLE FOR ACTUATING SAID PLUNGER.