US1773725A - Automatic lighting device - Google Patents

Description

25, 1930- J. M. CUCURELLO ET AL AUTOMATIC LIGHTING DEVICE Filed March 18, 1927 Patented Aug. 26, 1930 Hairs stares JAMES M, cuoUnELLo AND ANDREW'J'. orrcuRELLo, on NEW HAVEN, CONNECTICUT AUTOMATIC rien'rrive DEVICE Application filed March 18, 1927. Serial 110. 176,344.

This. invention relates to an automatic lighting device and particularly to mech anism for automaticallyregulating and con trolling thesupply of gas to the pilot light of a'gas stove orrthelike.

It is the principal object of this inventlon, among other things, to produce a mechanism of this character that will be highly eflicient, may be. associated with gas stoves or the like of conventional form and type, and produced at the minimum cost. The improvements in the details and arrangement of parts of this device will be apparent from an inspection of the accompanying drawings, in connection with the description hereinafter contained, and wherein a preferred embodiment of the invention. is disclosed for the purpose of imparting an understanding of the. same. 5

Inthe drawings, wherein like reference characters indicate like parts in the several views: V V

,Figure 1 is a plan view of our improved mechanism,illustrated as associated with a gas stove or the like; 1 o o c Figure 2s a side elevation thereof; i Figure 3 is an end elevation; Figure 4 is an enlarged plan view of the pilot light valve and some of the parts adjacent thereto; and. s

Figure 5 is a plan view of a portion of the top of, a gasstove with my improved mechanism associated therewith.

In the drawings, 10 represents the top of a gas stove or the like, of conventional form having associated therewith the spider plate 11, spider 12, gas inlet pipe 13, having a bell end 14 carrying the air valve 15 at its open end; and gas supply pipe 16 between which and the inlet pipe 13 is the spigot valve-17.

The mechanism above described is well known in the art and constitutes no part of our present invention.

Gas stoves and the like may be and are con- 4. structed with any number of spiders arranged in variousways relatively to each other, and for the purpose of explaining our invention we have only shown one of such spiders but desire to have it'understood that we are not limited thereto. 1

The stemlS of the spigot valve is moditied for our invention, having fixed upon the lower end thereof, a pawl plate 19 having a pawl 20 pivoted thereto upon a pintle 21. This pawl is normally held against the stop pin 22 by a spring 23, which is positioned in part by a screw 24 or the like. A spring 25 whichencircles the stem 18 between the plate 19 and the body of the valve '17 holds the stem upon its seat, as is usual.

The burner 26 of the, pilot light is connected by a pipe 27, push spring valve 28 and el-, bow 29 with the supply pipe 16. The stem 30 of this latter valve is so adjusted as to permit a limited amount of gas to pass thereby so as to keep the pilot light burning with a very lowflame. l Vhen the stem 30 is pressed inwardly the valve is fully openedand a materially increased supply of gas is admitted to the burner 26 from the supply pipe 16,

thus increasing the flame of the pilot light which is-projected toward the spider 12 and ignites any gas escaping therefrom. The stem'30'is pressed'inwardly when thestem 18 ofthe spigot valve 17is actuated through the handle 31. When the gas is turned 01f fromthe spider 12 the plate 19 and handle 31 are in the position substantially as shown in'fu'll lines in-the several figures.

If it is desired to admit gas to the spider 12 the stem 18 of the spigot valve is rotated about its axisthrough the handle 31 until the pawl plate 19 assumes the position shown by brokenlines in Figure 4. At the completion ofthis movementthe spigot valve 17 is fully open and gas from the supply pipe 16 is admitted into the pipe 13 and spider 12. The pawl 20 during this movement engages the stem 30 and moves the same inwardly and; the inn'erend is injthe position shown by broken lines in Figure 4. This permits the full volume of gas to pass to the pilot light, the flame of which is extended and ignites the gas escaping from the spider 12. After the pawl 20 has passed the stem 30, the stem is returned to its original position, shutting off all but the limited supply of gas theret-hrough necessary to maintain the pilot light burning with a very low flame. During the reverse movement of the spigot valve the stem 30 is not disturbed, because the pawl 20 yields. against the tension of the spring 23 and passes thereby without imparting movement thereto. lVith this mechanism the gas in the spider is automatically lighted as soon as it is admitted through the spigot valve 17. If the handle 31 should be moved accidentally, the gas that escapes through the spider 12 will be lighted. This makes the device extremely safe, because the escaping gas will be consumed rather than escape into the open air.

There are'minor changes and alterations that may be made within our invention, and we would therefore have it understood that we do not limit ourselves to the exactconstruction herein shown and described, but claim all that falls fairly within the spirit and scope of the appended claims.

What we claim as new and desire to secure byLetters Patent, is:

1. In combination, a burner; a spigot valve for admitting gas thereto; a pilot burner; a push valve for admitting gas thereto, said valves arranged so as to leave an openspace therebetween,-and at substantially a right angle to eachother; and a part connected with the rotary stem of the spigot valve which is held rigid relative thereto during the travel of the rotary stem in one direction and will bridge said open space and engage and actuate the stem of the push valve and during the travel of the rotary stem in the opposite direction will move relative to the rotary stem and passsaid push stem without imparting movement thereto.

2. In a device of thecharacter described, the combination with companion valves associated with a single source of gas supply and so arranged relatively to each other as to leave an open space. therebetween, one of the companion valves being a push valve and the other companion valve being a spigot valve; a pawl plate fixed to the stem of the spigot valve; a pawl movably mounted on the plate and in one of its positions bridging said open space; means thereon limiting the movement of thepawl; and yielding means for holding the pawl against such limiting means, the stem of said push valve projecting into the path of movement of the pawl.

3. In combination, a fuel supply line, means for receiving fuel therefrom, a control valve therefor, said control valve having a main supply bore, a lighter, means actuated by the opening movement of said valve for operating said lighter, independently of said supply bore and means permitting closing of said valve without operating the lighter.

4. In combination, a burner, a fuel supply line therefor, a control valve for the burner, said control valve having a main supply bore, a lighter having means for maintaining a normally restricted pilot flame, means actuated by the opening, movement of said valve for projecting said pilot flame to light the burner independently of said main supply bore and means permitting closing of said valve without projecting the pilot flame from the lighter.

5. In combination, a burner, fuel supply means therefor, a control valve for the burn-V er, a lighter for said burner, means actuated by opening movement of the burner valve and ahead of full open position of the control valve for operating said lighter, means permitting the burner to remain open without maintaining the lighting operation and means permitting reverse movement of the control valve for closing the burner without operating the lighter;

6. In combination, a fuel supply line, a control valve therefor, a lighter means actuated by the opening movement of said valve and ahead of full open position of said valve for operating said lighter, means for discontinuing the lighting operation with said valve in open position and means permitting reverse movement of the control valve for closing said valve Without operating the lighter.

7. In combination, a burner, fuel supply means therefor, a control valve for the burner, a lighter for said burner, means actuated by opening movement of the burner valve and ahead of full open position of said valve, for operating said lighter, and means permitting reverse movement of the control valve for closing the burner without operating the lighter.

8. In combination, a burner, a fuel supply line therefor, a control valve for the burner, a lighter having means for maintaining a normally restricted pilot flame, means actuated by the opening movement of said valve and ahead of full open position of said valve for projecting said pilot flame to light the burner, means permitting the valve to remain open without continuing the projection of said flame after the lighting operation, andmeans for closing the valve by reverse movement without projecting said flame.

9. In combination, a first fuel supply line, a second fuel supply line, a valve controlling said first line, and means actuated by said valve ahead of full open position thereof for opening said second line with the opening of said valve and permitting closing of said valve by reverse movement Without opening said second line. I 10. In combination, afirst valve, a second valve, means for operating said first valve, and means controlled by said first valve for actuating the second valve thereby and with the operation of said first valve in one direction and permitting operation of said first valve in the opposite direction Without operating said second valve.

In testimony whereof, We have hereunto aflixed our signatures.

JAMES M. CUCURELLO. ANDREW J. CUCURELLO.

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