US1946365A - Gas burner - Google Patents

Description

R. SODERLIND Feb, 6, 1934.

GAS BURNER Filed Sept. 17, 1931 /NrE/v mP Po Y So DERL l/VD,

Patentecl Feb. 6, 1934 oNiTEo sTATEs rFicE Application September 17, 1931, Serial No. 563,371, and in Canada August 20, 1931 3 Claims.

This invention relates to gas burners generally and more particularly to gas burners for use in furnaces for heating systems and which can also be used as a lighter for furnace fires. 5 The objects of the invention are to provide a durably constructed portable device in the form of a poker that can be readily handled and connected up to the source of gas supply, lit and inserted in a hot-air or hot-water furnace to heat a dwelling, particularly in the fall and spring seasons and with a minimum consumption of gas.

A further object i-s to provide a device of this character for insertion in a dead fire of ordinary fuel which Will provide' a torch of iiame concentrated at the bottom of the fuel where it will be most efiective.

Gas lighters for fires already in use have been found from their construction to be liable to back-flash and also to clogging, so that when being ignited, some of the discharge holes remained unlit with the result that there was danger of an explosion of gas in a furnace. Another objection was that the lighter became so hot that it was almost impossible to handle it.

With my improved device these objections are completely overcome by providing adjacent to the poker end a single elongated slot through which the mixture of gas and air is dischargecl in concentrated form and can be lighted without any danger of back-flash to provide a torch at substantially the lower end of the device so that when inserted in a dead fire of coal, coke, '-wood, cinders, ashes and the like, the concentrated lame acts at the bottom of the fuel where it has the most effect in quickly and eiciently lighting a fire. Then again, this torch effect enables the device to be most satisfactorily used alone as a heater, by placing it on the grate bars of a furnace and thus heat a dwelling sufficiently to remove all chill and make it quite comfortable.

v Furthermore, efficiency in heating can be ma- -terially increased by leaving a few cinders or even a fire-brick or two on the grate bars around the end of the device to act as refractory material for the torch-like fiame issuing therefrom ,and materially increase the heating effect. When "it is taken into consideration that this method of gas heating can be used at a minimum cost, the novel and more satisfactory results will be appreciated and also that these results could not ,be secured or even thought of in connection with gas lighters heretofore or at present in use.

(ol. rss- 10) Having regard to the foregoing the novel features of the device comprise a tubular member formed with a reinforced tapered end and adjacent said end an elonga'ted discharge opening and means associated with the opposite open end for receiving gas and automatically mixing the gas with air, in predetermined proportions', to discharge such xnxture through said opening and provide, When ignited, a 'torch and means for connecting the open end to a source of gas supply.

The invention will be best understood by reference to the following description when taken in connection with the accompanying illustration of one specific embodiment thereof while the scope of the invention will be more particularly pointed out in the claims.

Referring now to the drawing and to the embodiment therein disclosed for illustrative purposes and in which like numerals of reference indicate corresponding parts in each figure:

Fig. 1 is a side elevation.

Fig. 2 is a lo'ngitudinal section.

Fig. 3 is a section on line 3-3 of Fig. 2.

Fig. 4 is a section on line 4-4 of Fig. 2.

Referring now more particularly to the drawing, A, designates the device as a whole of any suitable material and dimensions and preferably made of metal, comprising a tubular stem 10, closed to a tapered extremity at one end, as at 11, and reinforced, as at 12, at said end for use as a poker. Adjacent this closed end 11, and forming an essential feature of the device is the elongated slot 13. This slot is placed in the side of the stem, in proximity to the end 11, so that when the device is not used alone as a heater it can be most effectively used as a lighter for fuel already in the fire pot as the discharge from the slot 13, will provide a concentrated torch, substantially at the bottom of such fuel. The opposite end 14, is open and externally threaded, as at 15, to engage with an internally threaded bulged union tting 16, in which are a plurality of circumferentially spaced openings 17, for the intake of air. This fitting is internally threaded at the top to engage with a nipple 18, in which is a reducing nozzle 19, communicating With the member 15, while communicating with the nozzle is an externally threaded bushing 20, and further engaging with this bushing in any well known manner, is the end of a supply pipe 22, flexibly or otherwise connected (but not shown) to the gas supply.

From the foregoing the operation of the device will be practically self-evident, the device being connected up to the supply of gas is inserted iio through the door of an ordinary' hot-air furnace or through the clinker door of a hot-Water furnace to rest on the grate bars. The supply of gas is then turned on, rushing through the nozzle 19, causing suction of the outside air through the openings 17, into the member 15, Where a mixture of gas and air is automatically provided which, under the influence of pressure, passes down the stem 10, and is discharged in c'oncentrated form through the slot 13, where, on being ignited, it forms a torch which quickly heats the furnace and the air or hot water, as the case may be, associated therewth. To increase this heat it is only necessary to place a few cinders or even a brick or two on the grate bars of a furnace When they will act as refractory elements.

Furthermore, the device is adapted for use as a poker to light a fire, as already described.

Again, the fact that the discharge opening is practically at the closed end causes the mixture passing through the tube before being ignited to keep the tube, and particularly that portion of it which is being handled, cool. This is another result that cannot be obtained with previously known constructions.

Various forms 'of the apparatus described will suggest themselves to those skilled in the art; it is, therefore, not intended that the present applic'ation should be limited to' any particular form of construction; modifications may be made in the apparatus above described within the scope of the claims, Without departing from the spirit or scope thereof.

What I claim for my invention is:

l. A gas burner and fire lighter comprising a tubular member, closed and pointed at one end and open at the opposite end, an elongated opening in said member adjacent the pointed end, a detachable head provided With air intake opening's for the open end, a detachable reducing n-ozzle in said head co-operative With the air intake openings theren, and means for supplying gas to the reducing nozzle.

2. A gas burner and fire lghter comprising a tubular closed and tapered member reinforced at one end and open at the opposite end, a slot in the side of said member co-operative With the closed end, a hollow detachable head for the open end provided With air intake openings, a reducing nozzle co-operative With said hollow head, and means adapted to engage With and supply gas to the reducing nozzle.

3. In combination a tubular member having a. reinforced closed end to form a poker, open at the other end and provided adjacentv the closed end with an el'ongated opening or slot, a hollow head-piece, with air inlet openings therein, removably secured on the open end, and a reducing nozzle adapted to be connected to a source of gas supply, in said head piece.

ROY SODERLIND

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