US377502A - sellon - Google Patents

Description

(No odel. I q 2 'Sheets Shee t 1.

J. SySEL'LON.

INGANDESCENT GAS BURNER.

No. 377,502. Patented Feb. 7,1888; i

N. PETERS, mlimwmw. Washington. 0.0.

(No Model.) 2 Sheets-Sheet 2.

J; SLSELLONQ INGANDBSGBNT GAS BURNER. No. 377,502. 7 Patented Feb. 17, 1888.-

UNITED STATES.

PATENT OFFICE.

JOHN S. SELLON, OF HATTON GARDEN, COUNTY OF MIDDLESEX, ENGLAND.

INCANDESCENT GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 377,502, dated February 7, 1888. Application filed August 27, 1887. Serial No. 248,060. (No model.) Patented in England January 25, 1887, No. 1,150.

, Great Britain on the th of January, 1887,

N 0. 1,150,) of which the following is a specification.

My invention has for its principal object to provide a lamp for burning a mixture of gas and air in such a manner that the most perfect practical combustion of the gas is effected, and the lighting effect is obtained in a convenient and unobstructed manner, the said light beingcapable of being given in a downward direction or all around without practically any impediment and with great steadiness.

In order that my invention may be fully understood, I will describe the same with reference to the accompanying drawings,premising, however, that I do not limit myself to the precise forms and arrangements therein illustrated, since it will be evident that they may be considerably varied withoutdeparting from the'spirit of my invention.

In said drawings, Figure 1 is a diagram illustrating the simplest form of a lamp constructed in accordance with the invention. Fig. 2isa vertical section (partly in elevation) of a table-lamp,and Fig. 3 is a similar view of another form'of lamp embodying theinvention.

Referring to Fig. 1, the lamp consists of a glass tube, (or of two glasses placed together end to end,) G and I. The lower portion, G, constitutes the mixing-chamber and the upper part, I, constitutes the chimney. Between them is placed a disk, a, of reticulated or perlforat-ed metal or material, which is capable of being rendered incandescent. The disk or piece a may be termed the gauze or incandescent. -In operation a supply of air and gas passes to the chamber G,through pipe 0, and is ignited on the upper side of the gauze or incandescent a. The latteris shown as being fixed in a ring or frame, F, which may be made of metal, asbestos, talc, or other incombustible material. The radial lines show how the light from the incandescent gauze a is diffused on all sides.

In Fig. 2, Gis the mixing-chamber,to which gas under ordinary pressure is supplied by a pipe, B, passing through the column 0 of the lamp, and being provided with a cock, D, for regulating, as required, the passage of gas to the burner. In the column 0 and below the top of the gas-pipe B are openings E, through which air is admittedto the interior of the column to mix with the gas in its. passage to the burner, and the amount of air admitted may be governed by regulating the size of the openings by a covering-ring or by regulating the supply of gas according to its pressure.

G is'the chamberinclosed by a globe or glass over the gas and air inlet,which chamber may be continuous, as a globe, with the exception of the opening for the gauze; but it is here shown as a bowl or basin provided witha cover, H, in which the hole for the gauze a is formed, which gauze, when the mixture of gas and air (admitted to the chamber G and passing through it) is ignited, becomes incandescent and emits a powerful light,which radiates through the chamber. In order to increase the light, the under surface of the cover H may be enameled, silver plated, or otherwise treated, so that it constitutes a reflector.

Above the cover H and surrounding the opening in which the gauze a is placed there may be placed a chimney, I, which may be of any suitable material,transparent or opafiue.

Although in the drawings the gas and air are shown as'being supplied from a pedestal, yet they may, if required, be led from above or at the side, and be admitted to the chamber G at any suitable point or points beneath the game a, the chamber G serving in all cases as a mixing and heating chamber in which the gas and' air are received preparatory to passing into contact with the gauze a.

Fig. .3 illustrates a lamp in which the gas and air are led in from the side. The gas and air pipe 0 enters the side of an annular mixing-cha'rnber, G, with flanges g and g. The flange at g serves for the bearing of the flange of the globe G, a washer of asbestus, g inter vening. There is a space, g, between the flange and the inner wall of the chamber G through which the gas and air pass (as shown by the arrows) into thechamber G on their. way to the gauze a, to be there consumed and maintain the incandescence of the said gauze,

which 'is supported between asbestus, talc, or other suitable rings, j, secured to the flange g by the ring 9 and screws 9 The top closure, 9, of the chamber G serves to support the chimney I. The chamber G is formed with lugs g 9 the former for the screws which secure the chimney and thelatter for the screws which secure the chamber G.

The gauze a may be of any material, metal, or alloy which will stand the heat, and it may be perforated or reticulated, and it may, if so desired, be strengthened, as described in the specification of my application for Patent No. 15,287, of November. 23,1886, or if of metal may have superposed or in any way attached to, inclosed in, or between orinterwoven with a material or prepared pieces of any of the earths, oxides, or preparations of metalssuch, for instance, as zirconium, lanthanum, ceruim yttrium, strontium, barium, thorinum, or the like, which can be rendered incandescent and emit light.

Having now described and particularly as certained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. A lamp or burner provided with a perforated or reticulated gauze or incandescent placed above a chamber having transparent sides or walls, and provided with an inlet for air and gas, substantially as described.

2. A lamp or burner comprising a chamber having transparent sides or walls, inlets for air and gas to said chamber, a chimney, and a gauze or reticulated piece of refractory material placed across the opening from said chamber to said chimney, substantially as described.

3. The combination of the globe of glass, the annular mixing chamber communicating therewith, and the gauze or incandescent placed across the top of the chamber inclosed by said globe, substantially as described.

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

JOHN S. SELLON.

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