US733160A - Gas-burner. - Google Patents

Description

EIAYTENTBD JULY 7, 1903.

2 SHEETS-SHEET l.

NO MODEL` W/ TNESSE S.'

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PATENTBD JULY '7, 1903.

B. COLUMBUS.

GAS BURNER.

APPLICATION IILEDJUNB 1a, 1902.

2 SHEETS-SHEET 2.

N0 MODEL.

W/ TNESSES.' Mmww UNiTED STATES Patented July 7, 1903. i

PATENT OFFICE.

BERNHARD CGLUMBUS, NEW YORK, N. Y.

SEECIFICATION forming part of Letters Patent No. 733,160, dated July 7, 1903.

Application filed June 18, 1962x Serial No. 112,205. (No model.)

To @ZZ whom, t may concern:

Be it known that I, BERNHARD COLUMBUS, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York,v

have invented new and useful Improvements in GasBurners, of which the following is a full, clear, and exact description.

The invention relates to incandescent gasburners of the Bunsen type; and the object of the invention is to provide a new and improved gas-burner which is simple and durable in construction and arranged to insure a perfect mixture ot the air and gas, to allow ot' regulating the amount of gas to the minutest degree, and to permit ot maintaining a pilot-flame of a mixture of air and gas whenever the valve-plug is turned into a closed position.

The invention consists of novel features and parts and combinations of the same, as will be more fully described hereinafter and then pointed out in the claim.

A practical embodiment of the invention, is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure l is a sectional side elevation of the improvement. Fig. 2 is an enlarged sectional side elevation of the mixing-chamber and gassupply. same on the line 3 3 of Fig. 2, showing the valve-plug in an open position. Fig. e is a like view of the same, showing the valve-plug in a closed position; and Fig. 5 is a perspective view of the valve-plug.

The'valve-body A of the gas-burner'is connected at one end with the gas-supply pipe B and carries at its other end an integral nozzle C, discharging the gas in a fine jet into a preliminary mixing-chamber D, having airinlets D', surrounding the nozzle C. The lower end ofthe mixing-chamber D screws on the body A, and on the said chamber D, near the upper end thereof, is formed an external collar D2, on which rests the lower end of the shank E' of an enlarged final mixing and heating chamber E, provided in its top with a screen E2, opening into a mantle E3, hung at its upper end on a supporting-rod E4, vertically movable in a socket E5 and adaptgradually-open, or closed position.

Fig. 3 is a transverse section ot the;

button E9 is secured in the center of the screen E2 to distribute the mixture of gas and air equally to the meshes of the screen.

The plug F in the valve-bodyA is provided with a diametrical aperture F' and With a peripheral feed-groove F2, intersecting the ends of the aperture F', as plainly illustrated in the drawings. The plug F is provided with a suitable handle F3, adapted to be turned by the operator to turn the plug into an open, When the plug is in a full-open position, (see Figs. 2 and 3,) then the gas under pressure from the supply-pipe B passes in a jet out of the nozzle into the preliminary mixing-chamber D, and thus draws air into the inlets D', and this air mixes with the gas in the said chamber and nally passes into the nal mixing-chamber and through the screen E2 to burn on the top thereof within the mantle E5 to render the latter incandescent.

The middle portion of thepreliminary mixing-chamber D is made in the shape of two frustums of cones united at their apex ends,

so that the air and gas are rst compressed and then allowed to expand to insure an intimate mixture of the air and gas. By reterence to the drawings it will be seen that the side of the nozzle C' is tapering, and the nozzle extends about the height of the inlets D' to insure a full flow or rush of air into the chamber D when the jet of gas issues from the nozzle.

When the valve-plug F is turned into a closed position by the operator manipulating the handle F3 correspondingly, (see Fig. 4,) then gas can pass from the supply-pipe B through the groove F2 to the nozzle C, and this gas forms a mixture with the air entering the inlets D', so that a pilot-flame remains burning in the mantle above the screen E2 at the time the plug F is in a closed position.

Itis understood that the peripheral groove F2 is comparatively small, so that only a very small quantity of gas can pass from the supply-pipe B to the nozzle C at the time the plug F is in a closed position, as shown in Fig. 3.

IOO

Having thus described my invention, I claim as new and desire to secure by Letters Patent- An incandescent lamp-burner, comprising a Valve-body having a plug and an integral nozzle; a preliminary mixingchamber removably secured on the valve-body and having its middle portions formed of two frustums of a cone united at their apex ends; said preliminary mixing-chamber having vertical air-inlets at its lower end opposite said nozzle, said inlets extending upwardly even with the top of the nozzle; the upper portion of said preliminary chamber having ,an external collar at the termination of its conical portion; a final mixing and heating chamber having an enlarged upper portion and a lower portion adapted to telescope snugly over the upper section of the primary mixing-chamber and rest upon the external collar thereof, the middle portion of said Iinal mixing-chamber being gradually reduced or tapered from the enlarged portion to merge into the parallel walls forming the lower portion; the top of said primary mixing-chamber terminating in the lower portion of said nal mixingchamber below the lower end of the tapered section; a chimney and mantle support carried upon the lower end of said final mixing and heating chamber and a screen on top of said chamber; and a conical button in the center of said screen with its lower end extending downwardly into the chamber, as specified and for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

BERNHARD COLUMBUS.

Witnesses:

JOSEPH H. FARGIs, RICHARD V. ROCA.

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