US629296A - Gas lamp or burner. - Google Patents

Description

v No. 629,296.

\ II III! A. T. I. .wnnsou. GAS LAMP on BURNER.

(Application flied Mar. 18, 1888. Renewed June 23, 1899.)

Patented July i8, I899.

UNITED STATES P TENT" Orrice.

' ARTHUR THOMAS METCALF-JOHNSON, or oNDomnNc p.

cAs LAMP OR BURNER.

, SPECIFICATION forming part Of LettersPatent Nb. 629,296, dated 3' 1113? 18, 189 9. Application filed March 13, 189 8 Renewed June 21 3 1899. Serial No. 721,626. (No model.)

To all whom it may concern:

Be it known that I, ARTHUR This invention relates to improvements in;

or connected with gas lamps or burners, and has for its object to obtain a circular or Argand flame and to conduct to the inner and outer walls of the flame a supply of air in such manner that more perfect combustion,

and therefore a more brilliant flame, will be I obtained without any increase in the consumption of gas.

In the accompanying drawings, Figure 1 is an elevation representing a gas-burner constructed according to the present invention.-

Fig. 2 is a vertical section taken on" the line 1 1 of Fig.3. Fig. 3 is a plan thereof, but with the gallery removed. Fig. aiisasimilar view to Fig. 3, but with the nipple of the burner removed. Fig. 5 is a transverse section taken on the line 2 2 of Fig. 2 and looking from below, and Fig. 6 is a similar 'view taken on the line?) 3 of Fig. 1. I

In the several figures like parts are indicated by similar letters of reference.

it represents a cylindrical casing formed with several studs or rests a, constituting a seat for the chimney 0, while a gallery a is provided to support a-globe when desired;

The chimney o closely fits the outer wall of ton b the cylindrical casing a, which between the studs or rests a is provided with circumferential'slots (0* to admit a supply of air beneath the lower end of the chimney to the interior thereof and exterior of the burner.

The cylindrical casing a is fixed with a hollow stem or boss I), which at its lower end is furnished with a threaded nipple b, adapted to screw into any existing gas-fitting, and at its upper end is provided with a deflecting-but- Around the upper part of the stem or boss I) is arranged an annular chamberib which is supported upon the upper ends of pipes or conduits b, with the bore of which it communicates, and the lower ends of the pipes I THOMAS JHET CALF JOHNSON, retired civil servant, a sub or condults bfare fixed with the tubular stem 1) and communicate with the bore thereof.

The annular chamber b is formed with an enlargement and a seat at 12 and on this seat 1 b is dropped a hollow nipple 19, formed of steatite or other refractory materiahwhich'at its lower part is open to the chamber 19 and at its upper part is formed with a ring of perforationsb through which the gas issues, as is Well understood, while beneath the nipple b and within the seat Z9 is arranged a gas distributer, consisting ofa ring ofwire-gauze or perforated metal 33 or several of such rings might be employed, if desired.

The gas issuing from the perforations 19 when ignited forms an annular belt of flame which creates a'rapid draft of air through the burner, and these currents pass through the'length of the inclosed airway formed by the cylinder Ct in the direction indicated by the arrows in Fig. 2, and the air passing to the interior of the burner is by the button-- head 12 caused to impinge upon the inner wall of the flame ator near the point of ignition, while the air which passes outside the chamber Z2 is conducted in close contact with the outer wall of said flame, and the currents of air thus promote or induce rapid combustion.

By the means'hereinbefore described an Argand burner is rendered much more efficient and caused to give a brilliant, white, and steady light without materially increasing the expenditureof gas and without hav= ing recourse to incandescent mantles.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed,

I declare that what-I claimv is 1. In a gas-lamp, the combination of a cylindrical casing formed with inner and outer walls against the interior of the outer one of which closely fits the chimney, a seat for the chimney located between the walls, slots in the outer wall of the cylindrical casing, a

central hollow stem'fixed within the. cylindrical casing and adapted to be connected with the gas-supply pipe, an annular chamber formed with a seat to receive a nipple and supported by pipes or conduits from the hollow stem, a short distance from the cylindrical casing so as to leave a space between the parts, a nipple fitted to the seat, a wire gauze gas-distributer placed within the annular chamber, a deflecting-button carried by the stem and a cylindrical chimney carried by the seat of the cylindrical casing, the parts being so arranged as to leavelengthened airways up through the inside of the burner and around the outside of the annular chamber'and nipple, substantially as herein shown and described and for the purpose stated.

2. In a gas-lamp, the combination with a hollow stem, adapted to connect with a suitable gas --supply'pipe, an annular chamber connected to said stem and terminating in a nipple for distributing the gas in cylindrical form, of a chimney-holder consisting of a cylindrical casing, and extending some distance below the nipple of the burner, and a chimney closely fitting the holder with airways through the cylindrical casing and between the chimney and the annular chamber and nipple, substantially as described-.'

3. In a gas-lamp, the combination of a cylindrical casing, formed with inner and outer walls, a seat for the chimney having airways therethrough and located between said walls, air-passages in the outer wall of the cylindrical casing, a hollow stem fixed within the cylindrical casing, and adapted to be connected to a gas-supply pipe, and an annular chamber connected to said casing and terminating in a nipple for the discharge of the gas in cylindrical form, and conduits connectin g the chamber and easing, so as to leave a space between the parts, substantially as described.

ARTHUR THOMAS METOALF JOHNSON.

lVitnesSes:

GEO. S. VAUGHAN, F. B. MORRIS.

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