US449338A - William ten eyck - Google Patents

Description

' (No Model.)

W. TEN EYGK. SELF CLOSING GAS BURNER.

No. 449,338. Patented Mar. 31, 1891.

PATENT WVILLIAM TEN EYCK, OF OAKLAND, CALIFORNIA.

SELF-.CLDSING GAS-BURNER.

filPEGIFIGATION forming part of Letters Patent No. 449,338, dated March 31, 1891.. 7 Application filed August 22, 1890. Serial No. 362,778. (No model.)

.To aZZ whom it may concern.-

Be it known that 1, WILLIAM TEN EYCK, a citizen of the United States, residing at Oakland, in the county of Alameda and State of California, have invented a new and useful Self-Closing Gas-Burner, of which the following is a specification.

My invention relates to an automatic cutoff for gas-burners, and it is especially designed as an improvement upon a former device ill ustrated and described by me in a prior application for a patent filed on the 25th day of April, 1890, Serial No. 349,518.

As in the previous case, the ultimate purpose of the present improvement is to prevent the accidents likely to result from an escape of gas due to the indiscriminate opening of the stop-cock or the blowing out of the gas-light by ignorant persons. While aiming at the same object, however, the later invention differs from the first in that it reaches the desired end by simpler means and provides for a better operation of the working parts.

Referring to the accompanying sheet of drawings,which forms part of this application, Figure l is a sectional side elevation of my improved device as it appears when the gas is burning. Fig. 2 is a broken front elevation showing the burner closed, and Fig. 3 is a broken view showing how the initial flow of gas is secured when first lighting the burner.

The same parts are indicated by the same letters of reference in the three views.

The letterA designates a small cylindrical reservoir provided with an inlet a, which is adapted to connect with the nipple of an ordinary gas-bracket. This reservoir is made of sheet metal, and its component parts are accurately fitted, so as to render it gas-tight. Upon the reservoir A and communicating therewith is the burner B, which is of the usual construction. The entrance to the burner is controlled by two valves 0 D, the first of which is seated against the top of the reservoir and the second covers ports 0 c in the first. Stems 0 cl are provided for each valve, the stem of G running upwardly through the stuffing-box b above the reservoir, and that of D downwardly below the same through the stuffing-box Z).

The valve 0 is suspended by means of a plate E, which is attached by one end to the stem 0' and by the other to a bent rod F, set vertically in a suitable socket a upon the reservoir A. The plate E is made of expansible metal, preferably copper, and set close to the burner B in a plane parallel with the slit of the burner-tip, so as to receive the full benefit from the heat of the flame when the gas is lighted. The rod F, on the contrary, is made of wroughtiron or such other material as does not expand readily, and placed as far off from the flame as convenient, so that the heat Wlll not affect it. Thus the rod F remains practically in the same state, while the plate E lengthens under the influence of the heat, and as a consequence the unseating of the valve 0 is secured.

The valve D is kept up to its seat within the valve 0 by means of a spiral spring G encircling its stem, and it may be unseated through the medium of a cord or chain H, or any similar device. However, it cannot be lowered beyond a certain limit, as the upper end of the stem cl is enlarged and could not pass through the stuffing-box b. D is kept down while unseated by springs I, provided with teeth or catches 2', engaging an annular: groove cl in its sides. By preference these springs are made of flat steel bands and given the shape illustrated in the drawings herewith. The bands are fixed to the lower part of the reservoir and project upwardly as far as the valves D and O, with both or" which they are adapted to engage through their catches, as maybe seen by reference to Figs. 1 and 3. Two or more of these springs may be used, and they may belocated at any su1table point in the reservoir Bas deemed most expedient.

The operation is as follows: The gas 1s first turned on by pulling down the valve D from the position shown in Fig. 2 and uncovering the ports 0 c in the upper valve G. As D is lowered, the groove cl becomes engaged by the teeth 4 of the springs I. The valve D being momentarily checked thereby, as represented by Fig. 3, an initial flow of gas is secured and the burner may be lighted. This being done, the flame soon heats the plate E and makes it expand and unseat the valve 0, whereupon the latter becomes engaged with the upper end of the catches '11 and spreads apart the springs I, releasing the lower valve.

D then springs up to its seat out of the grasp of the catches 11, and the gas is admitted to the burner from the outside only of the valve 0, as in Fig. 1. Now if the light be blown out or extinguished by closing a stop-cock, the plate E being no longer under the influence of the flame contracts immediately, and both valves return to their former position, cutting off any possible escape of gas through the burner.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a selfclosing gas-burner, the combination of a gas-inlet, a reservoir connected therewith, a burner upon said reservoir, a main valve controlling theentrance to said burner, said valve having central ports, a secondary valve controlling said ports, and means to unseat said secondary valve and thereby secure an initial flow of gas to said burner, substantally as set forth.

2 In a self-closing gas-burner, the combination of a reservoir having a burner projecting therefrom, a main valve controlling the entrance to said burner and provided with central ports, a secondary valve controlling said ports and having an annular groove, means for unseating said secondary valve, and spring-catches adapted to engage said groove and hold said valve away from its seat, substantially as set forth.

3. In a self-closing gas-burner, the combination of a reservoirhaving a burner projecting therefrom, a main valve controlling the entrance to said burner and provided with central ports, a spring-actuated secondary valve controlling said ports, and springcatches adapted to be engaged alternately by said main and secondary valves, said catches engaging first said secondary valve and being afterward disengaged therefrom by said main valve, substantially as and for the purposes set forth.

4. In a self-closing gasburner, the combination of a reservoir having a burner projecting therefrom, a main valve controlling the entrance to said burner and provided with central ports, a spring-actuated valve controlling said ports and having an annular groove, spring-catches adapted to engage said groove and therebyhold said last-named valve away from its seat, and means to unseat said main valve and thereby disengage said catches from said groove, substantially as and for the purposes set forth.

5. In a self-closing gas-burner, the combination of a reservoir having a burner projecting therefrom, a main valve controlling the entrance to said burner and provided with central ports, a secondary valve controlling said ports, an expansible plate connected with said'main valve and adapted to control the same through expansibility and contractibility, and means for unseating said secondary valve and thereby secure an initial flow of gas to the burner, whereby the heating of the plate is secured, substantially as set forth.

6. In a self-closing gas-burner, the combination of a reservoirhaving a burner projecting therefrom, a main valve controlling the entrance to said burner and having central ports, the valve-stem thereof passing through the upper end of said reservoir, a spring-actuated secondary valve controlling said ports and having its stem passing through the lower end of the reservoir, and an expansible plate connected with the firstnamed valve-stem and adapted to control the same through expansion and contraction, substantially as set forth.

7. In a self-closing gas-burner, the combination of a reservoir having a burner projecting therefrom, a main valve controlling the entrance to said burner and having central ports, the valve-stem thereof passing through the upper end of said reservoir, a spring-actuated secondary valve controlling said ports and having its stem passing through the lower end of said reservoir, a non-expansible rod secured to the reservoirand having its upper end bent inwardly, and an expansible plate connecting said rod and said upper valvestem, substantially as set forth;

In testimony whereof I have hereunto set my hand and seal.

WILLIAM TEN EYOK. [L. s.]

In presence of HORACE D. RANLETT, NELLIE 0. RYAN.

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