US1952919A

US1952919A - Gas burner

Info

Publication number: US1952919A
Authority: US
Publication date: 1934-03-27
Anticipated expiration: 1951-03-27

Description

March 27, 1934'.

W. G. HASKELL, J-R

GAS BURNER Filed April 11, 1932 Patented Mar. 27, 1934 UNITED STATES PATENT OFFICE 2 Claims.

In the operation of gas burners of the type known as Bunsen burners as is well known the pressure of the gas and air creates a rapidly flowing current of combustible mixture through the burner tube, and. which does not ignite until after it has passed a short distance beyond the discharge end of the tube, and the flame is easily extinguished by air currents or by shaking the tube itself.

The object of my invention is to provide a gas burner of this character of simple, durable and inexpensive construction in which when the flame is ignited a small flame will be constantly maintained close to the discharge end of the tube to thereby maintain a flame in the mixture being discharged from the tube.

My invention consists in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawing, in which:

Figure 1 shows a side elevation partly in section of a gas burner embodying my invention.

Figure 2 shows a top or plan View of same; and

Figure 3 shows an enlarged detail sectional view of a portion of the discharge end of the burner tube.

Referring to the accompanying drawing, I have used the reference numeral 10 to indicate a gas supply pipe having a nozzle 11. 12 indicates a tube secured to the gas pipe 10 and having air openings 13 on its end adjacent to the nozzle.

The other end of the tube is formed with an inwardly extended circular flange 14, and this flange is provided with slots which are radially arranged and which extend from the top of the tube down to a point below the flange 14.

In actual practice I have found that desirable results were attained with slots find of an inch in width and extended down nd of an inch from the top of the tube.

In use, and when the gas is flowing through the tube and the gas flame is burning at the open end of the tube, the force of the mixture passing through the tube causes a flow of air from the exterior of the tube toward the interior of the tube through the bottom portions of the slots, and at the same time the pressure from the interior of the tube causes a part of the mixure of gas and air to flow outwardly and upwardly at the upper ends of the slots.

The effect of these two opposing currents is to retard the flow of gas and air within the slots and to commingle them in such manner as to produce a small flame, the base of which is close to the tops of the slots, and this flame will remain burning even though air currents of considerable force pass across the flame coming out of the tube, and even though the tube is shaken or swung rapidly, or that if for any reason the main flame from the burner tube should be extinguished while themixture was flowing through the tube, it would be instantly re-ignited by the small flames in and above the slots.

In actual tests I have demonstrated that the amount of heat generated by a given quantity of gas is increased by the use of the slot construction as compared with the ordinary Bunsen burner.

I claim as my invention:

1. A gas burner comprising a gas nozzle, a tube, said nozzle arranged to discharge into the lower end of said tube, the opposite end of the tube being formed with an inwardly projecting flange, said tube and flange being formed with a series of substantially radial slots, each being of substantially uniform width throughout its length, and extending from the upper end of the tube to a point below said flange, for the purposes stated.

2. In a gas burner, the combination of a gas nozzle, a tube, said nozzle arranged to discharge into one end of the tube, said tube having an inwardly projected flange .at its opposite end, and being provided with air passageways for the admission of air toward the interior of the tube near the flange and with gas passageways through the outer end of the tube at the flange, said passageways being united so that said air and gas may commingle therein, for the purposes stated.

WILLIS G. HASKELL, JR.