US732980A - Electrically-controlled gas-burner and pilot-light. - Google Patents

Description

.No. 732,980. PATENTED JULY 7, 1903. H. W. WEBB.

ELEGTRIGALLY CONTROLLED GAS BURNER AND PILOT LIGHT.

nrmonmn FILED MAY 2, 1902.

no MODEL.

llllli A TTOHNEY THE "cams PEYERS c0v PMOTQ-LITHKL. WASHINGTON o, c.

No'; vaeeo.

Patented duly 19053.

FFICE.

- HOLSTEIN W. WEBB, OF. COLUMBUS, OHIO.

ELEoTRicALLv-coNTRoLL'Eo' GAS-BURN ER AND PILOT-'LIG HT.

sPE'cIFIoA'rIoN forming part of Letters Patent No. 732,980, dated July 7, 1905. Application filed May 2,1902 'Serial No. 105,604. (No model.)

To all tbhom it may concern..-

Be it known that I, HOLSTEIN W. WEBB,a citizen of. the United States, residing at C- lumbus, in the county of Franklin and State of Ohio, have invented a certain new and useful Improvement in Electrically-Controlled Gas-Burners and Pilot-Lights, of which the following is a specification.

My invention relates to the improvement of electrically-controlled gas-burners and pilotlights; and the objects of my invention are to provide an improved construction of valve and controlling mechanism whereby the flow. of gas at the illuminating-burners and pilotburner is regulated by the opening and closing of an electric circuit and to produce certain improvements in details of construction and arrangement of parts which will be more fully pointed out hereinafter. These objects I accomplish in the manner illustrated in the accompanying drawings, in which- Figure 1 is an outer side elevation of the valve-containing section of the gas-supply pipehaving my improvement thereon. Fig.

pipe and-one of the gas-burners in connection therewith. Fig. 3 is an enlarged detail view in elevation of my improved valve. 'Fig. 4 is a similar view of said valve, taken at right angles with that shown inFig. 3; and Fig. 5 is a central vertical section on line as 09 of Fig. 1, the valve-containing section being shown continued past the pilot-pipe outlet.

Similar numerals refer to similar throughout the several views.

1 represents a vertically-arranged gas-supply pipe, which in its lower end portion may be provided with laterally or radially extending pipe-arms 2, from which rise suitable illuminating-burners 3. Included in the supply-pipel is a gas-conducting pipe-section 4, which is also utilized as a valve-casing. This pipe section 4 'is provided throughout its length and preferably on opposite sides of its center with gas ways or passages 5 and 6, the latter being comparatively small. J ournaled parts transversely in the pipe-section 4 in a correspondingly-shaped opening therein is the body of a conical valve 7, the latter intersecting the main passage 5 and smaller pas- 2 is a similar view at right angles with that shown in Fig. 1 and showing the pilot-light sage 6.

usual manner.

This valve has projecting outward from its smaller end a short grooved extension8 and from its larger end a slightly-reduced extension 9. On the latter are carried separated inner and outer ratchet- wheels 10 and 11, the teeth of one projecting in the opposite direction with those of the other. That portion of the valve 7 which is opposite or intersects the main gas-passage 5 of the pipesection 4 is formed with a comparatively large opening 12, and that portion of the periphery of the valve which intersects the smaller passage 6 is formed with two oppositely-located grooves or peripheral recesses 13. From these recesses or grooves 13 lead to the main valve-opening 12 comparatively small surface or peripheral grooves 14. In order to insure the valve against withdrawal from its seat in the pipe-section 4, 1 preferably employ a suitable spring-strip 15, one end of which engages the grooved or recessed surface of the.

adapted to be connected with a suitable circuit-breaking button through a battery in the Beneath the magnet-spools I fulcrum to the pipe-section 4 an armature bar or plate 19, the latter being provided near one end with an upwardly-extending pawl-carrying arm 20, the outer hook end of which is adapted to successively engage the teeth of the ratchet-wheel 10, over which said pawl projects in the manner indicated more clearly in Fig. l of the drawings. The armature-bar 19 is also provided with an upwardly-extending stop-pin 22, which is adapted when said armature-bar is drawn upward to come into contact with a tooth of the outer ratchetwheel 11, thereby preventing the overthrow of said ratchet wheels or preventing the movement of the same more than the distance of one tooth at one upward movement of the armature-bar.

It will be observed that the above-described valve-operating mechanism,consisting of the magnet, the armature-bar, ratchet-wheels,

and connected parts, is the same or substantially the same as that shown in my former patent, No. 679,197, issued under date of July extending arm 23 of a downwardly gas-conducting tube 24. This tube 24 is provided at its lower end with an outwardly and thence upwardly extending burner-arm 25. This burner-arm 25, which is provided at its upper end with a suitable pilot-burner 26, is, as shown, arranged to extend between two of the burners 3 in such position that when the same is lighted and the flame thereof is at proper height gas from said burners will be ignited. In regulating the supply of gas through the passage 6 from the upper section of the pipe 1 Iemployaregulating valvescrew 27, which enters a threaded opening in the pipe-section 4 and the inner end of which is adapted to be projected the desired distance within the passage 6.

In order to illustrate the operation of my device, we will assume that the valve 7 is turned to the position indicated in Fig. 5 ot' the drawings, in which position the passage 6 is in communication with the central portions of the oppositely-located valve-grooves 13 and that the passage 5 is closed from the fact that it is intersected by the unperforated portions of said valve. It will be observed, however, that the gas-supply through the passage 6 and the upper groove 13 will be carried through one of the grooves 14 to the main valve-opening l2, thence through the remaining groove 14 to the under side groove 13 down through the continuation of the passage 6 and through the pilot-tube 24 The limited supply of gas thus provided the burner-head of the pilot-tube is adapted to maintain a comparatively small light at said burner-head. By temporarily closing the circuit through the magnet-spools 17 it is obvious that the armature-bar 19 will be drawn upward toward the cores of said magnets, with the result that the pawl-carrying arm 20 will be thrown outward sufficiently to cause the ratchet-wheel 10 to move, through engagement of the pawl 21 therewith, the distance of one tooth. This partial rotation thus imparted to the conical valve 7 opens communication between the main passage 5 and main valve-opening 12, and owing to the extentof the recesses 13 communication of the passage 6 with said recesses is not cut F off by said partial rotation of the valve. As a result of the above-described operation of said valve not only is gas furnished through the passage 5 to the illuminatingburners 3, but an increased gas-pressure is provided the lower portion of the passage 6 through the groove connection 14 of the lower valve-groove 13 and the main opening 12. This increased supply of gas to the passage 6 and pilot-tube 24 25 results in extending the flame at the pilot-burner head 26 and insuring the lighting therefrom of the gas which is escaping from the heads of the burners 3.

This operation being accomplished and the armature-bar having dropped to its normal position, the circuit is again closed through the magnets, with the result that a corresponding rotation of the valve is attained, whereby the valve-grooves 13 are thrown out of communication with the passage 6, although the main valve-opening 12 still remains in communication with the passage 5, owing to the size of said valve-opening. By this operation itwill be observed that gas will be out oifentirely from the pilot-tube 24 25, whilev the flames at the illuminating-burner heads will continue. A third closing of the electric circuit results in the manner heretofore described in another partial rotation of the valve 7, which again brings the passage 6 into communication with the valve-grooves 13 and results in the gas at the burner-head of the pilot-tube igniting. A fourth closing of the circuit so turns the valve 7 as to cut off communication between the passage 5 and valve-opening 12, thereby extinguishing the lights at the burners and leaving a comparatively small flame at the pilot-burner.

From the above-described construction and operation it will be seen that the means which I employ for controlling the supply of gas at theilluminating-burners and pilot-burner are simple and effective.

Having now fully described my invention, what I claim, and desire to secure by Letters Patent, is-

In an electrically-controlled gas-burner and pilot-light, the combination with a gas-supply pipe, and illuminating-burner supporting arms leading therefrom, of a pipe-section included in said supply-pipe, said pipe-section having comparatively large and small passages therethrough, a gas-conducting tube having a burner-head adjacent to one of the illuminating-burners, said tube leading from the smaller passage ofsaid pipe-section, a rotatable valve intersecting said pipe-section and its passages, said valve having a large opening therethrough and separated peripheral grooves, the former adapted to communicate with the larger passage and the latter with the smaller passage of said pipe-section, grooves connecting the large opening of the :valve and said separated grooves, and means :-for imparting successively partial rotations gto said valve, substantially as specified.

HOLSTEIN W. WEBB. In presence of- A. L. PHELPS, W. L. MORROW.

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