Sulfur burner

Claim 1

A SULPHUR BURNER COMPRISING A CUMBOUSTION CHAMBER HAVING A SUBSTANTIALLY VERTICAL CYLINDRICAL SIDE WALL AND AN UPWARDLY EXTENDING CONICAL BASE WHEREBY AN ANNULUS IS FORMED THEREBETWEEN, SAID ANNULUS INCREASING IN SIZE FROM THE BOTTOM TO THE TOP OF SAID CONICAL BASE, MEANS FOR CONTROLLING THE SURFACE LEVEL OF A POOL OF MOLTEN SULPHUR CONTAINED IN SAID COMBUSTION CHAMBER WHEREBY THE SURFACE AREA OF SAID MOLTEN SULPHUR SURROUNDING SAID CONICAL BASE MAY BE CONTROLLED THEREBY CONTROLLING THE RATE OF VAPORIZATION AND COMBUSTION OF SAID SULPHUR, A GAS CHAMBER ABOVE SAID COMBUSTION CHAMBER WHEREIN COMBUSTION OF SULPHUR TAKES PLACE OVER SAID POOL OF MOLTEN SULPHUR CONTAINED IN SAID COMBUSTION CHAMBR, SAID COMBUSTION AND GAS CHAMBRS BEING JOINED THROUGH A CYLINDRICAL MEMBER OF RESTRICTED CROSS SECTION, MEANS FOR SUPPLYING PRIMARY AND SECONDARY AIR TO SAID SULPHUR BURNER, SAID PROMARY AIR BEING SUPPLIED TANGENTIALLY ADJACENT TO THE SURFACE OF SAID MOLTEN SULPHUR AND SAID SECONDARY AIR BEING SUPPLIED TANGENTIALLY AT SAID RESTRICTION, AND A GAS OUTLET PIPE LOCATED TANGENTIALLY AT THE TOP OF SAID GAS CHAMBER WHEREBY THE GASES FOLLOW A SPIRAL PATH THROUGH SAID BURNER DURING COMBUSTION.