Torch for liquid fuel burners

Claim 1

A STARTING TORCH COMPRISING A TUBULAR BURNER BODY HAVING A LONGITUDINALLY EXTENDING BORE AND A RESTRICTEAD ORIFICE AT ONE END THEREOF AND COMMUNICATING WITH SAID BORE, AN ELONGATED ROD DISPOSED AXIALLY WITHIN SAID BORE, COOPERATING MEANS ON OPPOSED REAR PORTIONS OF SAID ROD AND BORE FOR ROTATABLY MOUNTING SAID ROD WITHIN SAID BORE, SAID ROD INCLUDING A FORWARDLY EXTENDING STEM PORTION HAVING A SMOOTH EXTERIOR SURFACE IN OPPOSED CLOSED SPACED RELATION TO THE SURFACE OF SAID BORE TO PROVIDE AN ANNULAR SPACE THEREBETWEEN EXTENDING TOWARD SAID ORIFICE, SAID STEM TERMINATING AT ITS FORWARD END IN A VALVE PORTION FOR ADJUSTABLY CONTROLLING THE EFFECTIVE SIZE OF SAID ORIFICE AS SAID ROD IS ROTATED RELATIVE TO SAID TUBULAR BURNER BODY, SAID STEM INCLUDING AT THE FORWARD END THEREOF A ROUGHENED SURFACE PORTION OF LIMITED LONGITUDINAL EXTENT, SAID ROUGHENED SURFACE PORTION COMPRISING A PLURALITY OF CLOSELY SPACED ANNULAR GROOVES, SAID ROUGHENED SURFACE PORTION BEING IN SLIGHTLY SPACED RELATION TO THE OPPOSED SURFACE OF SAID BORE AND COMPLETELY OUT OF CONTACT WITH THE BORE SURFACE, INLET MEANS ON THE REAR PORTION OF SAID TUBULAR BURNER BODY INCLUDING A PAIR OF PASSAGES AT ONE END THEREOF COMMUNICATING WITH THE ANNULAR SPACE BETWEEN SAID STEM PORTION AND THE BORE OF SAID TUBULAR MEMBER AND BEING ADAPTED TO BE CONNECTED RESPECTIVELY AT THE OTHER ENDS THEREOF TO A SOURCE FUEL AND AIR UNDER PRESSURE, SAID ROUGHENED SURFACE PORTION OF THE STEM BEING EFFECTIVE TO INDUCE TURBULENCE AND ADMIXTURE OF FUEL AND AIR PASSING THROUGH SAID ANNULAR SPACE TOWARD SAID ORIFICE.