27,964. Gunmaker, G. H. Dec. 18. Gas and vapour burners. - A hot flame for heating-purposes, or for incandescent lighting, is obtained by burning highly-heated gas or vapour. The Figures show one device, in which an oil or spirit is vaporized, and the vapour ignited to heat an incandescent mantle. The oil or spirit is charged through a screw-stoppered mouth T into a portable reservoir Q, and air is afterwards forced in, a ball valve U preventing any escape. The oil, when the cock C is turned, passes up a tube A' to a vapourizing-tube A, shown separately in Fig. 4. The outlet of the tube is provided with a nozzle Y, near to which is a vapour or gas filtering medium A<3>, consisting of a small piece of spongy metal or wire. At the part A<2> of the tube A is a packing of asbestos or the like. A spirit cup S for starting the burner is fixed above the reservoir, and carries two clamps K, into which can be adjustably secured two rods and supporting a cylinder B, shown separately in Fig. 2. At the bottom of the tube B is a perforated part R for admitting air, while near the top of it are perforations or a strip of wire gauze D. Sliding over the tube B is a ring P, having a portion surrounding the vaporizing-tube A. A burner cap H with gauze F fits on the top of the tube B, and a supporting-rod I for a mantle is secured thereto by a screw J. No globe or other protection is necessary. The oil is first vaporized, or the gas, when that is used, highly heated, by the burning spirit in the cup S. The vapour or heated gas then passes into the bottom of the tube B, drawing in with it a supply of air. The mixture is ignited above the gauze F, and also outside the gauze D. The latter flame plays directly upon the vaporizing-tube A, and the heat is reflected by the shield P back upon the tube B, the result being that both the vaporizing-tube and the tube B are raised to and maintained at a high temperature. Several modifications are described. In two of these, the tube B and the vaporizing-tube A are arranged horizontally. A spring needle is arranged opposite to the nozzle Y in such a way that the outwardly-projecting end thereof may be struck a sudden blow so as to clear the nozzle while the lamp is burning. In other forms, the lamps are arranged in a banging manner, and the burners are duplicated, the outlet from the tube B branching into two different burners. In one of these forms, the air inlets are arranged above the lamp, and the nozzle Y is at the same place and is directed downwards into the top of the tube B. Instead of a cup S, the burner may be initially heated by a torch or other device. Two gauzes, such as F, may be arranged one above the other to prevent lighting-back. The tube B may be made as two concentric tubes, the vapour inlet opening into the inner one, while the outlet leads from the outer one, and noise is thereby prevented.