US1976870A - Cooking range flame protector - Google Patents

Description

Oct. 16, 1934. A. WEBER 1,976,870

000K184; RANGE FLAIR rnowscwon Filed Nov. 1, 1950 Patented Oct. 16, 1934 UNITED STA-rs 1,976,870 COOKING RANGE FLAME rno'rnc'roa Anton Weber, Vienna, Austria Application November 1, 1930, Serial No. 492,834

In Austria July 2, 1930 ll Claim. (Cl. 158-115) Heating and cooking burners using gas are frequently provided with pilot lights which ignite the gas that escapes when the burner is turned on. It is advisable to keep such pilot lights con- 5 tinuously lighted for refiring in order to insure rekindling in case .of unintentional extinction of the burner flame, and to prevent thereby, the accidents which otherwise would result from the outflow of the unlighted gas.

o This invention relates to a device for protecting igniting flames from being extinguished by drafts or through the boiling over of the liquid in a cooking utensil.

One object of the new arrangement is to insure that pilot lights reliably accomplish what they are supposed to accomplish. The effectiveness of the present invention is due to the fact that it keeps dangerous outer influences away from the igniting flame, and that consequently the flame need not be larger in size than would be necessary if no outer influences could interfere with the undisturbed working of the flame.

The invention essentially resides in the feature that coaxially with the feed pipe for thegas, a

two or more funnels are arranged inside of one another in such widely spaced relation that the opening of thepipe and partsof the flame close to that opening are protected against the immediate eflects o1 drafts and the flowing over 3 of liquids.

It may be mentioned in this connection that pipes or funnels closely arranged in and behind one another and forming narrow ring-shaped slots are known as an essential feature of gas burners constructed to burn large quantities of gas with increased heating eflects. Contrary to this and in consideration of the entirely diflerent purpose to be accomplished, very small quantities of gas are usedin pilot lights and the tunnels other inan entirely diirerent fashion. a

In the accompanying drawing, the view shows an embodiment of the invention tion and partly in section.

In this embodiment, the pilot light includes a feed pipe 8 projecting with its open end centrally into a sleeve 16 which is held by a clamp 17 andterminates in a v:funnel or cone-shaped portion 18. Parallel bars 19 attached to the sleeve 16 carry two iurther funnels 18' and 18". The

tunnels may be attached to the bars by any wellknown method, as by welding, etc. The tunnel 18 projects into the funnel 18', and this latter into the tunnel 18'', so that apart from the open end of the invention have been arranged in one anpartly in elevaof the feed pipe 8 the greater part of the igniting flame is also enclosed. The flame itself passes unhindered through the open ends of the sucmessive funnels.

The A igniting flame is effectively protected 0 against becoming extinguished by draughts or gusts-of wind, since the arrangement of tunnels actsas a screen. The intermediate gaps between the funnels, on the other hand, allow of the admission of the requisite quantity of air for combustion. when the contents of a cooking pot boil over the flame is likewise protected, since the liquid runs oi the surfaces. of the funnels and can only reach the flame in harmless quantities. a A great number of practical tests have proved the usefulness of the device. Even if outside in-- fluences effect a shortening of the flame the latterimmediately regains its normal length, and remains constantly burning as long as the supply of gas is maintained; A blow-back during the ignition of themain burner will not result in the extinguishing of the pilot flame, since gas entering the shield from the front end for the most part does not penetrate beyond the first funnel 18", and escapes in an outward direction 30 through the conical annular space between the tunnels 18" and 18'.

The arrangement described may be used in connection with any heating or cooking burner and also to protect any long, thin gas flame.

A flame protector including a plurality of widely spaced irustoconical funnels arranged on a common axis with the minor end of each funnel projecting into the major end of the next succeeding tunnel, said funnels being of equal size and having their walls parallel, a cylindrical housing projecting rearwardly from the first of said funnels, a gas feed pipe projecting into the housing iromthe rearand concentrically-spaced from the housing wall, and bars connecting the cylindrical housing and said tunnels.

' AN'DON WEBER.

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