US1420702A - Automatic gas-controlling device - Google Patents

Description

E. A. T. HOLDEN.

AUTOMATIC GAS CONTROLLING DEVICE.

APPLICATION FILED APR. 16. 1921.

Patented June 27, 1922.

UNITED STATES PATENT OFFICE.

AUTOMATIC GAS-CONTROLLING DEVICE.

Application filed April 16, 1921.

To all whom it may concern:

Be it known that I, EDWARD A. T. Hon- DEN, a citizen of the United States, residing at Duluth, in the county of St. Louis and State of Minnesota, have invented certain new and useful Improvements in Automatic GrasControlling Devices, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to gas regulating devices and has special reference to means for automatically regulating or controlling the gas supply to the pilot light of a gas stove.

The principal object is to produce a sim ple automatic device of this character.

Other objects and advantages of the invention will appear in the further descrip tion thereof.

In the accompanying drawing forming part of this application in which like reference characters indicate like parts:

Figure 1 is a top plan view, partly broken away, of a four burner gas plate, with a pilot light centrally disposed therein for igniting the burners of the plate;

Figure 2 is an enlarged perspective view of one of the burner control valves adjacent the pilot control valve illustrating my improvement attached thereto; and

Figure 3 is an elevation of a modified form of stem of one of the valves.

1 represents the manifold gas supply pipe to which the various branch pipes 2 are attached, each being provided with a spigot valve 3 intermediate of the manifold pipe and their respective supply pipes a which lead to the burners.

5 represents the pipe which leads to the pilot light, it being connected to the manifold pipe 1 by the push spring valve connection illustrated at 6. the vertically disposed stem of which is shown at 7 terminating in the round fiat stem engaging button 8.

As commonly operated it is well known that these valves are set so as to keep the pilot light burning very low except when the stem 7 is depressed manually when the supply of gas is materially increased by thus opening the valve when the flames of the pilot light will reach outwardly towards the various burners of the. gas stove and ignite any gas which may be escaping therefrom, as when any one or more of the burner valves have been previously opened for such Specification of Letters Patent.

Patented June 27, 1922.

Serial No. 461,861.

I shall now proceed to describe only the cooperative association of one of the burner valves with the pilot light valve, as it is obvious that any number of such valves may be associated with the pilot light, each having an independently cooperative means connected therewith.

Longitudinally upon the manifold pipe 1 and adjacent the valves'connected therewith is horizontally disposed and spaced upwardly slightly therefrom a small shaft 9, it being carried in suitable arms 10 which form an integral part of the removable adjustable spring clips 11 placed about the manifold pipe and may be securely fastened thereto. An arm 12, having a hub portion 13 formed integral therewith is mounted upon the shaft 9 with its free end engagingthe upper surface of the button 8 on the valve stem 7 of the pilot light connection. Adjacent the valve 3 of the burner pipe connection and on the shaft 9 is similarly mounted an arm or lever 14, it having a hub portion 15 for such mounting, and is of somewhat S-shape in plan view so that the free end partly surrounds the stem 16 of the valve 3, though spaced therefrom. The outermost upper edge of the free end of the lever let is upwardly arched as at 17 and about the stem 16 of the valve 3 is securely attached as by a set screw 18 the radially extending arm 19, one of which partly surrounds the stem 16 for the purpose of being securely clamped thereabouts. Now this arm 19 is so disposed radially upon the stem of the valve as not to engage the free end of the arm 14 when the valve 3 is closed, but, on opening such valve the lower edge of the arm 19 will engage the upwardly arched portion 17 of the lever 1 1 and depress same during its further action. This, as is obvious, Wlll rock the shaft 9 carrying with it the arm 12 in a downward direct-ion, the free end of which will impinge the button 8 of the pilot light valve stem 7 and instantly open such valve, which will result in the pilot light being augmented sufficiently to light the burner of the supply pipe 4 simultaneously with the opening of the valve associated therewith, thus resulting in instant automatic opening of the pilot light and lighting of the burner with the opening of the valve 1 which supplies gas to said burner. Then as the valve of the burner pipe is further opened the arm 19 will pass over the hump 17 on the arm 14 and allow the shaft 9 to resume its nor;

mal position by the upward action of the spring controlled valve stem 7 forcing upwardly on the lever 12 when the pilot light will again be isubdued as previously described.

In Figure 1 I have shown the arm 14 being connected with each of the four different burner pipes, the contact of any one of which, by the opening of any one of the burner valves, will cause the pilot light to function as previously described, and in Fig ure 8 I have shown a radially disposed arm 20 as being formed integral with the valve stem 21 of the valve 3, this being illustrated as a means whereby the removable arm 19 may be dispensed with in the event of the valve stems being made with the object in view of cooperativerelation with such a device as herein set forth, but one manifest convenience of the device as illustrated in Figure 2 is that it may be readily applied to any burner having a pilot light. associated therewith.

Having thus described my invention, What I claim and desire to secure by Letters Patent is:

1. The combination with a gas burner manifold pipe having a burner valve conn e cted therewith and a pilot light valve connected therewith, of a rotatable shaft mounted adjacent the manifold and parallel therewith, an armatt-ached to the shaft for rotat ing same extending towards and adjacent the burner valve, means upon the stem of the burner valve for engaging said arm and rocking the shaft, and an arm rigidly carried by the shaft adjacent the pilot light valve and engaging the stem of same, sub stantially as and for the purpose described. 2. The combination with a gas burner manifold pipe having a burner valve connected therewith and a pilot light valve connected therewith, of means externally of the valves and cooperative therewith whereby the pilot light valve is first opened and then closed by the continuous opening of the burner valve.

In testimony whereof I hereunto afiix my signature in the presence of two witnesses.

EDWARD A. T. HOLDEN. lVit-nesses S. C. BRoNsoN, S. Gno. STEVE-NS.

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