' 2,411,759 Patented Nov. 26, 1946 ' Egg-Ego ‘ sures PATENT caries 2,411,759 A GAS IVMTUBE. N. Y., assignor to _ Brooklyn, Louis E. Seley, Samuel Harry White, Detroit, Mich. Drawing. Application February 4, 1944,‘ No Serial No. 521,1 37 ' 1 Claim. (ill. 44-52) i not be materially varied without sacri?cing the valuable and necessary characteristics of the mix . This invention is directed to a gaseous fuel de signed more particularly, but in no wise limited to use with oxygen for welding and heating metals, preheating of metals in cutting operations, case hardening of metals, metal spraying, lead burn ing, working of glass, and like purposes. ture. A lesser proportion than stated has no ben e?cial e?ect and a larger proportion tends to de 5 crease the effectiveness of the flame. This has been proven through a long series of laboratory Various mixtures have been heretofore pro and practical tests and uses, which tests clearly disclosed that any material variation from the posed for such purposes, particularly the mix critical proportions above mentioned sacri?ce ture of propane, or butane and propane with 10 one or another of the valuable and highly impor di-ethyl ether, and also other similar mixtures tant results. gases, are nevertheless wanting in an ideal mix ' - ‘ . The tests of the new fuel show that in use, which while effective as compared with untreated . , the ?ame is more intense, the temperature is ma terially increased over previous and conventional ture tending to the most direct and effective results combined with economy in‘ use, particu l5 mixtures, there is less gas and oxygen required larly in the oxygen content of the ?ame, the in the ?ame than in previous mixtures, and due to the lower gas and oxygen pressures required quantity of fuel gas consumed andthe necessity for an intensej?ame temperature necessary to‘ ' for an effective ?ame, the highly objectionable cupped tip can be discarded and a ?ush type tip rapidly dotthe' work for which it is intended‘. The primary object of the present invention is 20 used, since this new ?ame will not blow o? the the production of a gasfor the designed purpose end of the tip. ‘ The mixture, in liquid or. gaseous form, may which in its de?nite and essentially critical pro be effectively used in steel containers, pipe lines, portions produces a greater flame temperature, and materially reduces the amount of time, oxy or other conventional methods of application.‘ gen and gas required for any particular work‘ in 25, Ordinary commercial ethyl oxide and benzine comparison with previous mixtures or bare un , may be used, but the use of methyl oxide or syn treated gases. The compounded mixture in the ingredients thetic oxides of either or both may be used with either the high or low boiling point benzine. and the range and proportions as an effective This mixture readily lends itself,to any and minimum are as follows: '7 lbs. of propane or a 30 all uses for which a gas of this character may or mixture of propane and butane with not appre ciably less than '7 ounces of ethyl oxide and ‘7 ounces‘ of benzine; and as a maximum: 9 lbs. of propane or a mixture of propane and butane can be used, bearing in mind always that the de?ned proportions in the particular ranges are critical and should not be changed if the-desired with not appreciably more than 1 lb. of ethyl oxide and 1 lb. of benzine. The above speci?cally 35 results are to be obtained. What is claimedv is: ' . - The method of generating a gaseous fuel for use in welding and cutting of metals, heating, stated proportions are substantially 82 to 89% of propane, substantially 51/2 to 9% of diethyl hardening, and for like purposes, comprising the ether, and substantially 51/2 to 9% of benzine. spraying of propane with the vapor of benzine. The ethyl oxide and benzine are miscible with 40 and di-ethyl ether in the following proportions by each other and mingle in one solution and are weight, substantially 82 to 89% propane, sub therefore mixed with the propane or propane and stantially 51/2 to 9% di-ethyl ether, and substan butane in required proportions to produce the tially 51/2 to 9% of benzine. _ ‘desired results. ' > ~ it is understood that the proportions given are exact and de?nitely critical in each range, can 45 . . LOUIS E. SELEY.