Pressure welding device

Claim 1

A HOLDING FRAME AND CLAMP FOR PRESSURE WELDING BY HEAT THE ABUTTED ENDS OF SEPARATE ELONGATED SECTIONS OF WORK PIECES COMPRISING, A FRAME EXTENDING LONGITUDINAL AND OUTWARDLY FROM THE ELONGATED SECTIONS AND SPANNING THE ABUTTED ENDS THEREOF, A CLAMP ENGAGING EACH OF THE SEPARATE SECTIONS AT PREDETERMINED DISTANCES FROM THEIR ABUTTED ENDS, DEFLECTABLE CANTILEVER ARMS HAVING ONE OF THEIR ENDS CONNECTED TO EACH CLAMP AND THEIR OPPOSITE END SECURED TO THE FRAME FOR STORING ENERGY FOR MOVING THE WORK PIECES DURING THE WELDING PERIOD, THE CANTILEVER ARMS BEING DEFLECTABLE LONGITUDINALLY BY THE LONGITUDINAL EXPANSION OF THE WORK PIECES BY THE WELDING HEAT APPLIED TO THE ABUTTED ENDS OF THE SECTIONS OF WORK PIECES; WHEREBY, ENERGY OF SUFFICIENT FORCE IS STORED IN THE MOVEMENT OF THE CANTILEVER ARMS BY THE EXPANSION OF THE WORK PIECES TO MOVE THE ABUTTED ENDS TOWARD EACH OTHER FOR A DISTANCE EQUAL TO THE DISTANCE TRAVERSED BY THE DEFLECTED CANTILEVER WHEN THE ABUTTED ENDS REACH A WELDABLE STATE UNDER THE WELDING HEAT FOR UPSETTING THE WELD OF THE ABUTTED ENDS.