USRE734E - Improvement in gas-lamps - Google Patents

Description

UNITED STATES H. G. SICKEL, OF

PATENT OFFICE;

ASSIGNMENTS, TO GEORGE H. BEGHTEL.

IMPROVEMENAT I N GAS-LAM PS.

Speilieaiion 'o'ning pat oi Lettrrs Patent No. 6,624, daled August 7 1S9; Rei sie l\`o. 73 1. datd May 31,1859.

p that the following is a full, clear, and exact description of the invention, reference being had to the acconipanying drawings, and to the letters of reference marked thereon.

The invention consists, first, in a mode of regnlatin g the admission of gas to the burner, by forming a valve in the latter and a valveseat on the tube which contains the wick; second,in a safcty-valve, described hereinafter, for allowing the excess of gas to escape from the reservoir containing the fluid, third,in a shield or guard arranged to cover and overhang the reservoir in conbination with the gas-gener ator and bnrner; i'ourth, in combining the gasgenerator, the guard, and the ring for holding the glass shade in a single piece, so that the whole may ascend and descend simultaneously.

On reference to the acconipanying drawings, which form a part of this specification, Figure 1 is an eXterior view of H. G. SickePs iniproved gas-lamp; Fig. 2 a sectional view; Figs. 3, 4, and 5, detached views illustrating the method of constructing the safety-valve; Fig. G, an enlarged sectional view of the burner; Fig. 7, a part of Fig. 6, showing the position ot' the part when the gas is cut off from the burner.

Similar letters refer to similar parts throughout the several views.

A is the reservoir for containing the flnid,.

from which the ignitible gas or vapor is generated, and into the top of this reservoir is screwed the hollow stopper C, the bottom of which forms the seat for the valve D. The stern E of the latter passes through and is gnided by a hole in a cross-bar on the top of the hollow stopper, and between this cross-bar and the top of the valve intervenes a spiral spring, F, which serves to maintain the valve tight on its seat when not raised by the undue pressnre in the reservoir. Iuto the top of the latter is Secured the collar h, which forms a part oi' the tube G, one portion of which pro jects downward into the fluid contained in the reservoir,the other portion projecting upward and terninating within the burner P, which consists of a chanber of a spherical or other suitable form Situated on the top and forning a part of the outer tube, H, the lower end of which has an internal. screw adapted to the screw cut on the tube G at The tube H carries the shield or gnard I, which covers and overhangs the top of the'reservoir A. carries the ring U, which serves the double purpose of supporting the glass shade ofthe lanip and turning the onter cylinder round when it is desirable to increase or diminish the fianie. The gas-chamber P is pierced at intervals with small holes, through which gas escapes and at which it is ignited. The chamber is surnonnted with a cap or button, R, which may be of the trunpet form illustrated in the drawings, or of a spherical, concal, or other form capable of prodncing the desired effect.

`To the cap or button R is secured the internal pipe, Q, which extends downward into the fluid of the reservoir, and at the junction of this tube with the cap a Valve is formed at q q of such a diameter as to fit the top of the tube Gr when the outer tube, H, is screwed down, the top of the tube having an internal fiange, e, which forms the seat for the valve. The wick t bears directly against the inside of the tube G, and is wrapped round a retic'ulated tube, S, between which and the innermost tube,Qa narrow space intervenes. This tube Q is closed at the lower end, and the reticulated tube S rests on a pin passing trans- Versely through the lower end of the tube G. Operation The volatile liqnid, which is generally composed of alcohol and spirits of turpentine, and from which the gas is generated, is poured into the reservoir through the opening in which the tubular stopper C is screwed. The onter tube, H, is then adjusted i on the tube G by turning the ring U until there is a sufficient opening between the valve q and its seat e, on the top of the tube G, to allow the desired anonnt of gas to pass into the hollow The tube also in the tube Gr passes upward chamber P. A small quantity of the spirit is then poured into the nterior of the tube Q through the opening in the cap or button B',

rary light for imparting the necessary heat to the cup and tube Q, to generate vapor in the cylinder G for supplying the burner P. This temporary light may be exti'nguished after the gas passing from the burner is ignited, as the lights maintain the cap or button R, and consequently the tube Q, at a heat suffioient to generate the gas in the tube G without aid from any extraneous light. The vapor rising and through the annular space between the valve q and its seat e into the chamber P, from whence it issues through any convenient number of radial ori fioes, so as to produce a number of jets, which, I when ignited, form a flame similar to that of ordinary gas. Should too much vapor issue between the valve and itsseat, the annular I opening between the two may be diminished by sorewing down the outer tube, H, and when the lamp has to be extinguished the outcr tube may be screwed down so far that' its valve q shall bear tight on its seat, and effectually obstruct thefurther exit of gas from the tube G. The guard or shield T prevents the possibility of any vapor that might chance to escape at the j oints becomingignited by the flame from the burner. It likewise adds to the beauty of the lamp, and conoeals the stopper and other projections. Should there be too great pressure of vapor in the reservoir, the valve D will rise froni its seat, contraet the spiral spring, and let out the vapor through the openings at the top until the pressure is so far reduced as to permit the and this spirit is ignited to serve as a tempof ring U, and guard T spring to reclose the valve. By the use of this valve all danger of explosion from excessive pressure is obviated, and thevvapor that escapes between the valve and its seat will pass below the lower edge of the guard T and be condensed without danger of igniting.

I do not claim as the invention of Horatio G. Sickel a generating tube and vapor-burner separately considered; but

I claim as his invention and improvement in gas-generating fluid-1amps- 1. Forming a valve within the adjustable gas-ehan1ber P, and a seat for the said valve on the tube which contains the wick t, so as to regulate and eXtinguish the light when required, whether the said valve be made and arranged in the manner described, or other modes substantially the same, by which similar results may be produced.

2. The employment of the safety-valve C D E, in conbination with the guard T, constructed substantially as described.

3. The guard T, in combination with the combined burner and generator, arranged and Operating in the manner and for the purpose set forth.

4. Combining the generator Q B, burner P, .in a single piece, made to ascend and descend sinultaneously in the manner and for the purpose substantially as herein set for'th.

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

GEO. H. BECHTEL. `\Vitnesses:

HENRY HOWSON, CHARLES D. FREEMAN.

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