Burner for very low pressure gases

Abstract From the Canadian patent

Apparatus for burning combustible gases at very low pressure, in combination with a combustion chamber having an opening through one wall. The burner system comprises a burner tube for supplying the low pressure gas comprising, a tube of selected diameter and length with an annular, flange extending inwardly at the end inserted into the opening in the wall. A steam tube of smaller diameter than the burner tube, is mounted axially inside of the burner tube, and has a closed end in the plane of the inwardly extending flange. A plurality of orifices are drilled through the closed end of the steam tube at a selected angle to the axis, whereby when steam is supplied to the steam tube, at 5# …