Process for fabricating terminal connectors from sheet metal

Claim 1

IN THE ART OF FABRICATING FROM SHEET METAL CONNECTORS HAVING A WORK-HARDENED TONGUE PORTION AND AN ANNEALED READILY CRIMPABLE FERRULE PORTION ADAPTED FOR COLD FORGING ONTO CONDUCTORS AND THE LIKE, THAT IMPROVEMENT WHICH COMPRISES THE STEPS OF PROVIDING A CONNECTOR ELEMENT OF WORK-HARDENED MALLEABLE SHEET METAL HAVING TONGUE AND ROLLED UP FERRULE PORTIONS, SAID FERRULE PORTION HAVING A LONGITUDINAL BUTT SEAM THEREIN; HEATING SAID FERRULE PORTION TO A TEMPERATURE IN EXCESS OF THE ANNEALING TEMPERATURE OF SAID SHEET METAL AND THE WETTING TEMPERATURE OF A BRAZING MATERIAL WHEREUPON SAID FERRULE PORTION IS ANNEALED TO SUBSTANTIALLY A DEAD SOFT CONDITION, SIMULTANEOUSLY THEREWITH COOLING SAID TONGUE PORTION TO MAINTAIN SAME BELOW ANNEALING TEMPERATURE; REMOVING SAID HEATED FERRULE FROM THE HEATING MEANS, AND APPLYING IMMEDIATELY A PREDETERMINED AMOUNT OF A THIN STRIP OF BRAZING MATERIAL ALONG SAID SEAM UNTIL SAID BRAZING MATERIAL IS MELTED BY THE HEAT OF SAID FERRULE PORTION ONLY.