Patent GB-190416854-A (GB)
Title: Improvements in Atmospheric Gas Burners and Automatic Controllers for same.
Inventor: COX GEORGE JAMES
Filed: 1904-08-02
Granted: 1904-12-08
Abstract: 16,854. Cox, G. J. Aug. 2. Gas burners ; gas supply, cnntrolling.-In burners especially designed for use with cooking-stoves of the kind described in Specification No. 8151, A.D. 1904, means are provided for heating the gas and air supply both before and after mixing. In one form of burner, shown in Figs. 1, 2, and 4, the gas and air are heated in passing through the pipe A, which opens into the trident, circular, or othershaped burner B. In another form, shown in Figs. 7 and 11, the air, instead of entering at the open end of the pipe A, passes through the tubes D into the chamber G, to which the pipe A is connected. The tubes D, which may be bent as shown or otherwise shaped, are placed so that the air supply is heated. In some cases, the gas-supply pipe J encircles the burner, as shown. In a burner provided with reflectors and draught protectors, as described in Specification No. 8153, A.D. 1904, an air-heating passage K, Fig. 14, may be formed on the underside of the vessel E, and a connecting- chamber L is formed between the pipe A and the passage K. Either of the above-described forms of burners may be used in combination with the reflectors and draught protectors referred to. The burner shown in Fig. 1 is held in position in the vessel E by means of a lug M, cast upon the burner, and a slot, which are of dovetail or other shape. If the air-supply tubes D are used, they may either be bent and carried through the bottom of the vessel, or their ends may project through the back. The standard or supply column N, Figs. 4 and 11, which forms a partial support for the burner, and in which the gas-jet orifice is formed, has at its upper part a screw R, by means of which the size of the jet orifice may be regulated. The burner may be readily inverted on its support so that it may be employed for grilling purposes. The supply column may be modified when used in connection with the vessel E ; in this case no provision is made for supporting the burner, and the jet orifice is formed in a projecting nipple, as shown in Fig. 14. The vessel is secured in its correct position by means of studs S. When a burner of the kind shown in Fig. 1 is used in connection with a vessel E forme1 without an airheating passage K, the end of the pipe A, Fig. 10, is cut away and projects through the side of the vessel. The and of the pipe is connected to the gas injector jet fitting, Fig. 9, which represents an improved form of the bracket gas connection described in Specification No. 8151, A.D. 1904. The arrangement shown in Figs. 9 and 10 may be used in connection with the burner shown in Fig. 11. In order to provide support for the burner, further than that given by the standard N, a strip of metal W, forming in one piece a cross-bar base, or foot, and two legs, is loosely attached to the sides of the burner. The strip W, Figs. 2 and 4, is so placed that it may swing over the end of the burner and come into position ready to support it when it is inverted for grilling purposes. Studs S secure the strip to the base-plate. In burners which are not arranged to be reversible, the support W may be inclined from the top inwards, and the upper ends of the legs may be extended to form rests for the gas pipe J. Means are provided for diminishing or cutting off the gas supply when the cooking-utensil is removed. A valve 1, working in the fitting N, is connected by a series of levers outlined in Fig. 2 with a weight 13, which is depressed by the cooking-utensil, thus lifting the weighted lever 7 and causing the curved arm 6 to throw the valve 1 off its seat. A modification of the valve arrangement 1 is described and shown. In the arrangement shown in Fig. 5, the weight T is depressed vertically, and the arm 17 of the lever 15 is placed in contact with, tut not necessarily coupled to, the curved arm 6 shown in Fig. 2.