US1415576A - Gas stove - Google Patents

Description

J. E. KENNEDY.

GAS STOVE. APPLICATION FILED mac/2a. 1920.

1,415,576. Patented M91922 2 SHEETS-SHEET 1.

FIG. 1.

LE. KENNEDY.

GAS STOVE. APPLICATION FILED DEC.23, I920- Patented May 9, 1922.

- I, 2 SHEETSSHEET 2. H 1 1;" 6'. I n I u film: 1| II V -Frca. 3. 6'5 l 451 i IJ umrso stares rarer r vi c I GAS s'rovE.

Specification of Letters Patent.

Application filed December 23, 1920. Serial No.43 2,810.

To all whom it may concern:

Be it known that 1, JAMES E. KENNEDY, a citizen of the United States of America, residing at Washington, in the District of Columbia, have invented certain new and useful Improvements in Gas Stoves, of which the following is a specification.

This invention relates to certain new. and useful improvements in gas stoves and has particular reference to an apparatus designed to automatically control the fuel supply to the burner of gas heated stoves.

The principal object of the invention is to provide a gas stove with automatic'mechanism adapted to be operated when the article to be heated is properly placed upon the stove, for increasing the flame of a pilot burner prior to the opening of the main burner valve whereby ignition of the main burner by the pilot burner is insured, the mechanism being automatically returned to a normal position on the stove, for turning out the main burner and reducing the flame of the'pilot burner, whereby greatest economy is had through the use of the invention.

Another important object of the invention is to improve and greatly simplify the general construction of controlling devices for stoves of this character, particularly those disclosed in my former U. S. Patents Nos. 1,070,812, August 19, 1913; 1,151,108, August 24, 1915; 1,182,383,'May 9, 1916, and 1,189,699, July 4:, 1916.

Another important object of the invention is to provide a burner controlling mechanism composed of such simple and durable parts and having the parts so arranged and connected as to provide a commercially practical article involving a mechanism which will not readily get out of order and whose parts may be removed for cleaning or for repairs.

A further object of the invention is to greatly simplify and improve the construction of the main burner of a gas stove and its mixing device. A still further objectof the invention is to detachably provide the grid ofthe stove with a-casing or hood for confining the heat of the main burner within the same for obtaining maximum heating efiiciency.

With the above general objects in view and others that will appear as the nature of the invention is better understood thesame consists in the novel form, combination and Patented May 9,1922.

arrangement of parts hereinafter more fully described, shown in the accompanying drawings'and claimed.v

.''In' the drawings, wherein like reference characters designate corresponding parts throughout the several views,

Figure 1 is a topplan view of a single burner plate stove. constructed and equippel in accordance with the present invention,

Figure 2 is a sectional view thereof upon line II-II of'Fig. 1, with parts removed,

Figure 3 isa view partly in section'and partly in elevationoflthedevice shown in Fig. 1 and taken in a direction at rightangles' to the'line of section of Fig. 2, partsbeing'removed to. clearly-illustrate details of the invention, r

Figure't is an enlarged fragmentary sectional" viewtaken on a line substantially parallelto thesectionline I1-Ill and centrally'of the device shown in Fig. l, with.

parts broken away to illustrate details of the invention, 1"

Figure 5 is an enlarged view" partly in elevation and partly in longitudinal section of the valve construction of the device,

igure 6 shows in front elevation and bottom plan views, the pilot burner hood and actuating spider mounting member,

"Figure 7 is a perspective view .of the weight carrying member which supports the pilot burner hood of Fig. 6,

' iFigure 8 is a perspective view of the pivoted weight,

Figure 9 is a similar view of the weight actuated lever for the automatic gas control valve, 1

Figure 10 is a perspective view of one of the members of the mixing device of-the main burner, and i Figure 11 is a similar view of. another member thereof.

Referring more in detail to the several limited in application to this particular form of stove.

As shown, the usual supply pipe 8 "is prov vided for supplying gas to'the'm'ain burner 9 through its inlet pipe 10 which isconnected to the supply pipe 8 by means of the valve construction of Fig. 5 and a mixing device including the members shown in Figs. 10

and 11. The burner 9 includes a hollow cast body as clearly shown in Fig. 4 including a plurality of radial burner members 10 having inverted V-shaped upper faces with burner openings 11 therein, the V-form of these members being seen in Fig. 4. By forming the members 10 in this manner an extremely practical arrangement of flames is provided and clogging of the perforations 11 is extremely unlikely. The upper member or casting of the burner 9 is provided with an open bottom which is closed by a sheet metal plate 12 having a central opening, the wall of said central opening and the margin of the plate 12 being curled or beaded around annular shoulders on the casting of the burner as at 13, whereby a gas-tight joint is formed without the use of cement or soldering and in an expeditious manner.

The grid 6 is provided with a depending central flange 14 provided with a plurality of outwardly projecting lugs 15, and a tubular casing or shield 16 is secured to and depends from the grid 6 through the provision of an annular flange 17 provided on the upper edge of the casing 16 and sprung into the groove or notch provided between each of the lugs and the body of the grid 6 as shown in Fig. 4. As the casing 16 depends to the bottom of the main burner 9 and substantially completely encloses the space between said burner and the grid 6, the heat of the burner is confined within the proper area for insuring maximum heating eiliclencyv whereby the article placed upon the grid in the proper manner is heated quickly.

Referring to Figs. 1, 2 and 5, it will be seen that I have provided a special valve construction including a main casing 18 having an inlet port 19 suitably connected to the supply pipe 8 and provided with a filter screen 20 for straining the gas. The casing 18 is provided with an outlet port 21 directly opposite the inlet port 19, and the casing is reduced at the outlet 21 to provide a nipple 22 for reception within the central opening 28 of the mixing device composed of sections 24 and 25. The section 24 is the one which has the central opening 23, and it is also provided with an upper horizontal flange 26 provided with end openings 27 adapted to receive suitable fastening devices such as screws which enter the usual shoulder or lug 28 of the stove frame whereby the section24 is held against movement. The section 24 of the mixer is provided with the usual arcuate slot 29 whose area is to be re duced or increased through the use of the well known rotary damper plate in the usual manner, whereby the amount of air admitted to the mixer for combining with the gas is regulated. The member is also provided with an upper horizontal flange 30, and this flange is provided with an aperture 31 arranged to coincide with a central threaded aperture 32 of the flange 26 so that a suitable fastening device such as a screw may be secured in said. apertures 31 and 32 for holding the mixer member or section 25 to the section 24 and against movement. The section 25 includes a tubular end portion formed to snugly fit within the section 24 and carried by a larger centrally apertured disk portion which abuts the adjacent end edge of the section 24 as shown in Fig. 2, the section 25 being provided with a smaller tubular portion or collar 35 coincident with the central opening 36 for snug reception of the adjacent end of the inlet pipe 10.

The valve casin 18 is provided with the usual turn plug valve 37 for manually controlling the flow of gas from the supply pipe 8 to the burner 9, and between the valve 37 and the inlet port 19, the bore of the casing 18 is enlarged for accommodating another special form of turn plug valve 38 which includes a closing member 39 of substantially wedge-shaped form in transverse section and normally arranged with its broad side closing the outlet port 21 for preventing the ilow of gas to the main burner 9, this position of the closing member 39, which has its limit of closing movement regulated by any well known form of stop used in turn plugs, being illustrated by full lines in Fig. 5. The casing 18 is provided with a second outlet port 40 beneath the closing member 39, and the casing 41 of a pilot valve member is detachably threaded as at 42 into a boss provided on the valve casing 18 whereby the bore 43 of the casing 41 is alined with the port 40. The casing 41 has its bore enlarged at the upper end to provide a chamber for receiving cotton or other filtering material 44 which will absolutely insure absorption of moisture and clarifying of the gas for a purpose which will presently become apparent. The closing member 39 of the valve 38, when closed, has its narrow portion slightly spaced as at 45 from the inner face of the casing 18 so as to allow at all times a slight seepage of gas from the supply pipe 8 through the inlet port 19 to the outlet port 40 and to the bore 43 of the casing 41, whereby a small light may be maintained at all times at the burner 46 of the pilot tube 47 which is connected to the casing 41 by being threaded into the internally threaded end portion 48 of the latter which communicates with the bore 43. Another manually controlled plug valve 49 is provided for the casing 41 for permitting the pilot burner to be manually controlled or to be entirely shut off.

The casing 18 is provided with a by-pass or groove 50 about the valve 38 and leading from a point adjacent the inlet port 19 to a slight distance toward the outlet port 21 so as to prevent closing of communication belighted by said'pilot burner.

' maintaining the valve 38 in its normal full tween the ports 19 and 21 when theclosing member 39is opened to it'sidotted line position of Fig. 5'; It willbe seen,from viewing the latter figure, that when thevalve 38 is open, the passage between ports 19and 4:0 is gradually increased before the communication is established between ports 19 and 21', whereby the pilot burner is turned completely on for providing the same with a maximum flame before the main burner 9 is On the other hand, reverse movementof valve 38 will not only turn out the main burner 9 through the instrumentality of the closing member 39, but the passage between ports 19 and 4:0 will be reduced by the latter :for' turning down the pilot burner so as to provide for a minimum consumption of gas when the heat the main burner is not desired.

Means is 1 provided for automatically line position of Fig.- 5 and-forautomatically turning the same to its dotted line position of Fig. 5 when an article to be heated is properly positioned upon the grid 6. This means includes a hook arm or lever 51 ex tending laterally from and rigid with the projecting end of the valve member 88 and normally engaged with the laterally projecting end 52 of a peculiady' shaped lever 53. The lever 53 is preferably formed from comparatively rigid wire andin'cludes a longitudinal end portion 54 having its free end threaded as at 55-for reception of lock nuts '56 (see Fig. 2),the': threaded end of the lever being passed through an aperture 57 provided in one end of an operating weight member 58,.and thenuts 56 being threaded tightly against opposite faces of said end for securing the lever 53 in place. The wire, at'the oppositeend' of the portion 541- is bent-at right angles to provide a transverse central portion 59, and the wire is. then again bentat right angles as at to provide a second longitudinal portion connecting the central portions 59 and laterally projecting end 52. from the rear of the stove 5 forwardly along one side of the latter and beneath the grid 6 out-ofview, after -which'it extends to-, ward the center of the stove for engagement of the end porti'on'52 with the hook 51.

The weight 58'maybe of any specific design, although that shown herein is preferable, and it broadly includes a long body portion, the ends of which each rest upon a depressed ledge '61 of the stove frame as clearly shown in Figs. 1 and'3,the ledges 61 being of sufiicient length to permit the weight to be placed upon said ledges when the grid 6 is removed, and-then allow the weight to he slid rearwardly whereby the body, por tion of the weight is'disposed transversely of the stove beneath the grid 6 and rearwardly of the casing 16 where it is not in f vgas to the pilot burner 46. O

In this way, lever 53 is extended the way or exposed to'view. The body of the weight isprovided with rearwardly extending arms 62 provided with-transverse weight members 63 normally disposed beneath the rim- 64 of the stove frame and normally causing the body portion of the weight to tilt in a direction to cause the weight members 63 to lower and to cause the lever 53 to raise; for moving the valve member 38 to its full line position of Fig. 5. A screw 65' is adjustable through one end of the weight member 58 above one of the ledges 61 so as tolimit the downward tilting movement of the lever 53 whereby the opening movement of the member39 is regulated for correspondingly restricting the flow of The central portion of the weight member' 58 is provided with a pair of spaced apertures 66, and the ends 67 ofa'n actuating member 68. are suitably fastened in these openings. The actuating member 68 is preferably formed of rigid wire bent in double U form so as to provide a loopmember 69 at the opposite end of the actuating mem her parallel with'the ends 67 of the latter, each endo'f' the loop member 69 being connected to one end 67 by a horizontal intermediate portion 70. The intermediate portions 70 are of such lengths as to extend forwardly a desired distance for permitting the p member 69 to project centrally upwardly through the main burner 9, and the i loop 69 is of suchlengthas to terminate slightly above said main burner as shown clearly in Fig; 1. As shown, the pilot tube 47 extends partially through the center of the main burner 9 where it connected with the pilot burner 46 by being telescoped into the latter, a pin and slot connection 71 being tilting. The hood'72'is provided with an upwardly extendingstem 74 which termi-' nates so as to normally project slightly above the grid 6 when the'weight mem-v bers 63 are lowered and the valve -38 is closed. 'An article actuated spider 75 of general conical formis removably received as at 71 upon the stem 74; as well as adjustably mounted upon the latter for accommodating-various kinds of articles to be,

heated as taught and fully described-in my above mentioned ,P'atent"1,189,699," July 4:,

V The stove is provided with a supporting arm7 6 which isj-fastened as at 77 to the frame of the stove and which is provided with a groove in its depending portion '78 for supporting reception of the-inner end of the main burner 9, the supporting member 7 6 being then extended forwardly beneath the main burner where it engages and supports the pilot tube 427.

In operation, the parts are normally disposed as shown in Fig. 2 with the spider 7 5 projecting above the grid 6 and with the closing member 39 in its full line position of Fig. 5: The article or member to be heated such as a vessel, is placed upon said spider after the pilot burner 46 has been ignited, and the weight of the vessel depresses parts 68, 72 and 75 so as to tilt the weight member 58 for swinging its weights 63 upwardly. When this takes place the lever is tilted downwardly and through its connection with the hool: 01, the valve member 38' is rotated for first increasing the size of the passage from the inlet port 19 to the pilot burner 1-6 whereby the latter is turned on full. Upon further continued movement of the valve 38 and its member 39, communication is established between ports 19 and 21, and the gas flows through groove 50 to the port 21 and it then passes to the main burner 9. As the gas issues from the perforations 11 of the main burner, it is ignited by the pilot burner 46 and the vessel is quickly heated as the gas to both burners is completely turned on and the heat from said burners is confined so as to impinge upon the bottom of the vessel by the casing 16. Of course, the flow of gas to both burners may be manually regulated at will whenever found necessary by means of the valves 3'? and 49. As soon as the vessel is removed from the spider 75, or its proper position upon the stove, the weights 63 will lower and thereby tilt the weight member 58, upward movement of the members 68, 72 and 7 5 being permitted by this removal of the vessel. The tilting of the weight member 58 causes upward swinging move-- ment of lever 53, and the member 39 of valve 38 returns to its full line position of Fig. 5, wherein the main burner 9 is completely turned out and the pilot burner 46 is turned down. In this way gas is only consumed when it is actually needed except for the extremely slight consumption of gas by the pilot burner as it remains lighted when turned down. I

It will thus be seen that I have provided an extremely eiiicient gas stove composed of simple and durable parts and embodying automatic mechanism of a practical character which will efficiently perform the functions enumerated for the ultimate economy and convenience of the user.

It is believed that the construction and operation as well as the advantages of the present invention W111 be readily understood munication to the main burner and to allow' slight seepage of gas to the pilot burner and arranged to increase the flow of gas to the pilot-burner before turning on the gas to the main burner, means to automatically maintain the valve in its normal closed position,

and means operable by the positioning of a device to be heated above the burners for automatically opening said valve.

2. In a gas stove, the combination with a main burner and an igniting pilot burner therefor, of means to normally completely prevent flow of gas to the main burner and to allow slight seepage of gas to the pilot burner, and means to automatically operate the last named means upon positioning of a device to be heated properly upon the stove,

for first increasing the flame of the pilot burner and then permitting the passage of gas to the main burner to be ignited by the increased flame of said pilot burner.

3. In a gas stove, the combination with a main burner and an igniting pilot burner therefor, a gas supply pipe, a valve casing having an inlet port communicating with said supply pipe and having a pair of outlet ports, one communicating with the main burner and the other communicating with the pilot burner, a rotatable valve in said casing constructed to normally close communication between the inlet port of the casing and the first named outlet port thereof while allowing slight seepage of gas from said inlet port to the second named outlet port, said valve being constructed so that when the same is turned, the passage from the inlet port to the second named outlet port is increased for first turning up the pilot burner and then communication is established between the inlet and the first named outlet porttor permitting passage of gas to the main burner, and means to automatically maintain the valve in a normal position for closing communication be tween the inlet port and the first named outlet port and operable by the positioning of a device to be heated above the burners for rotating said valve to a position wherein the communication between the inlet port ,1

and the first named outlet port is established. V

. 4. In a gas stove, the combination with a main burner and an igniting pilot burner its ' extending transversely of the stove reartherefor, a gas supply pipe, a valve casing having an inlet port communicating with said supply pipe and having a pair of outlet ports, one communicating with the main burner and the other communicating with the pilot burner, a rotatable valve in said casing constructed to normallyclose communication between the inlet port of the ca s- 1ng and the first named outlet port thereof while allowing slight seepage of gas'from said inlet port to the second named-outlet port, said valve being constructed so that when the same is turned, the passage from the inlet port to the second named outlet port is increased for first turning up the pilot burner and then communication is established between the inlet and the first named outlet port for permitting passage of gas to themain burner, means to automatically maintain the valve in a normal position for closing communication between the inlet port and-the first named outlet port and operable by the positioningof a device to be heated above the burners for rotating said valve toa position wherein the comamain burner and an igniting pilot burner therefor, a gas supply pipe, a valve casing having'an inlet port communicating with said supply pipe and having a pair of outlet ports, one communicating with the main burner and the other communicating with the vpilot burner, a rotatable valve in said casing constructed to normally close communication between the inlet port of the easing and the first named outlet port thereof while allowing slight seepage of gas from said inlet port to the second named outlet port, said valve being constructed so that when the same isturned, the passage from the! inlet port tothe, second named outlet port .is increased for first turning upthe pilot burner and'then communication is established between the .inlet and the first named outlet port for permitting passage of gas to the main burner, means to automatically maintain the valve in a normal position for closing communication between the inlet port and the first named outletport and operable by the positioning of a device to be heated above the burners for rotating said valve to a position wherein the communication between the inlet port and the first named outlet port is established, said last named means including a weight member wardly of the burners, and the stove being provided-with depressed ledges upon which said weight member rests.

6. In a gas stove,the combination with a main burner and an igniting pilot burner therefor, a gas supply pipe,,a valve casing having an inlet port communicating with said supply pipe and having a pair of outlet ports, onecomm'unicating with the main burner andl'the other communicating with the pilot. burner, a rotatable valve in. said casing constructed toynormally close communication between the inlet ,port of the casing and the first named outlet port there-i;

of while allowing slight seepage of gas from i said inlet port to the second named outlet port, said valve'beingconstructed so that when the same is turned,,the passage from the inlet port tothe second named outlet port is increased for first turning 'up the pilot burner and thencommunication' is -es-, tablished between the inlet and the first named outlet port for permitting passage of gas to the-main vburner, means to automatically maintain the valve in a normal position for closing communication between t the inlet port and the first named outlet port and operable by the positioning of-a device t-OzbG heated abovethe burners for rotating said valve to a position wherein the communication between the inlet port and i the first named "outlet port is established, said (last named means includinga weight member extending transversely of the, stove rearwardly of the burners, theZstove being providedv with depressed ledges upon which, 3 1 i said weight member restsfand meanstoj adjustably limit the tilting'movement of said weight member.

7. In a gas stove,

therefor, a gas supply. pipe, a valve casing the combination with a. main burner and an ignitingvpilot burner k having an inlet port communicating with."

said supply pipeand having apair of outlet ports, one communicating with the mainv burner and the other commun cating w th the pilot. burner, ayrotatable valve inqsaid casing constructed to' normally close coin-. munication 'betweenthe inlet port of g the casing and the first named outletfport ther' e.

of while allowing slight seepage of 'gas'from' said inletflport to the second named outlet port,.said valve being constructed so that when the same is turned, the passage from" the inlet port to the second named outlet port is increased for first turning up thejpilot burner, and then communication is estaboutlet port for permitting passageof gas to the main burner, means to 'automatically maintain the valve in a normal position for erable by the positioning of a device to be heated abovejthe burners for rotatingsaid a, 1'26 lished between the inlet and the first named i valve to a position wherein the communication between the inlet port and the first named outlet port is established, said last named means including a. weight member extending transversely of the stove rearwar-dly of the burners, the stove being proof the lever.

8. In a stove, the combination with a main burner and an igniting pilot burner therefor including a substantially horizontally disposed burner tip, of means to normally prevent flow of gas to the main burner and to permit slight seepage of gas to the pilot burner, and means operable automatically upon proper positioning of an article to be heated above the burners for actuating said means to allow flow of gas to the main burner whereby the latter is ignited by said pilot burner thelast named means'including an article depressed member having a pilot burner hood mounted upon the upper end thereof above the main burner.

9. In a gas stove, the combination with a main burner and an igniting pilot burner there-for including a substantially horizontally disposed burner tip, of means to normally prevent flow of gas to the main burner and to permit slight seepage of gas to the pilot burner, means operable automatically upon proper positioning of an article to be heated above the burners for actuating said means to allow flow of gas to the main burner whereby the latter is ignited by said pilot burner the last named means including and article depressed member having a pilot burner hood mounted upon the upper end thereof above the main burner, said article depressed member consisting of a single length of wire of double U form forming a loopat one end, and the hood being provided with a groove for reception of the upperend of said loop. I

10. In a gas stove, the combination with a main burner and an igniting pilot burner therefor including a substantially horizontallv disposed burner tip, of means to normally prevent flow of gas to the main burner and to permit slight seepage of gas to the pilot burner, meansoperable automatically upon proper positioning of an article to be heated above the burners for actuating said-means to allow flow of gas to the main burner whereby the latter is ignited by said pilot burner, the last named means including an article depressed member having a pilot burner hood mounted upon-the upper end thereof above the main burner said article depressed member consisting of a single length of wire of double U form forming a loop at one end, the hood being provided with a groove for reception of the upper end of said loop, said hood being provided with an upwardly extending stem and a spider or contact member mounted upon said stem.

11. In a stove, the combination with a main burner and an igniting pilot burner verse weight carrying member pivotally mounted rearwardly of the burners and having the article depressed member rigid therewith. i

12. In agas stove, the combination with a main burner and an igniting pilot burner therefor including a substantially horizontally disposed burner tip, of means to normally prevent flow of gas to the main burner and to permit slight seepage of gas to the pilot burner, means operable automatically upon proper positioning of an article to be heated above the burners for actuating said means to allow flow of gas to the main burner whereby the latter is ignited by said pilot burner, the last named means including an article depressed member having a pilot burner hood mounted upon the upper end thereof above the main burner; said article depressed member consisting of a single length of wire of double U form forming a loop at one end, a transverse weight carrying member pivotally mounted rearwardly of the burners and having the ends of the article depressed member secured thereto, said weight carrying member having rearwardly extending weights rigid therewith.

13. In a gas stove, the combination witha main burner and an igniting pilot burner therefor including a substantially horizontally disposed burner tip, of means to normally prevent flow of gas to the main burner and to permit slight seepage of gas to the pilot burner, means operable automatically upon proper positioning of an article to be heated above the burners for actuating said means to allow flow of gas to the main burner whereby the latter is ignited by said pilot burner, the last named means including an article depressed member having a pilot burner hood mounted upon the upper end thereof above the main burner, said article depressed member consisting of a single length of wire of double U form forming a loop at one end, a transverse weight carrying member pivotally mounted rearwardly of the burners and having the ends of the article depressed member secured thereto, said weight carrying member having rearwardly extending weights rigid therewith, said means for normally preventing flow of gas to the main burner further including a rotatable valve member having a hook arm rigid therewith, and a lever rigidly connected at one end to the weight carrying member and formed with a lateral projection at its other end engaging the hook of said arm.

, 14. In a gas stove, the combination with a main burner and an igniting pilot burner therefor including a substantially horizontally disposed burner tip, of means to normally prevent flow of gas to the main burner and to permit slight seepage of gas to the pilot burner, means operable automatically upon proper positioning of an article to be heated above the burners for actuating said means to allow flow of gas to the main burner whereby the latter is ignited by said pilot burner, the last named means inolud ing an article depressed member having a pilot burner hood mounted upon the upper end thereof above the main burner, said article depressed member consisting of a single length of wire of double U form forming a loop at one end, a transverse weight carrying member pivotally mounted rearwardly of the burners and having the ends of the article depressed member secured thereto, said weight carrying member having rearwardly extending weights rigid therewith, said means for normally preventing flow of gas to the main burner further including a rotatable valve member having a hook arm rigid therewith, a lever rigidly connected at one end to the weight carrying member and formed with a lateral projection at its other end engaging the hook of said arm, said lever consisting of a single length of wire having a transversely arranged central portion and a pair of longitudinally extending portions connected thereto, the lateral projection extending from one of said longitudinally ex- 7 tending portions of the lever.

and to permit slight seepage of gas to the pilot burner, means operable automatically upon proper positioning-of an article to be heated above the burners for actuating said means to allow flow of gas to the main burner whereby the latter is ignited by said pilot burner, said last named means 1nclud- 111g an elongated weight carrying member arranged transversely of the stove rear wardly of the burners, and a stove frame provided with a removablegrid and formed with depressed ledges beneath the grid upon which said weight carrying member pivotally rests.

16. In a gas stove, the combination with a main burner and an igniting pilot burner therefor including a substantially horizontally disposed burner tip, of means to normallyiprevent flow of gas to the main burner and to permit slight seepage of gas to the pilot burner, means operable automatically upon proper positioning of an article to be heated above the burners for actuating said means to allow flow of gas to the'main burner whereby the latter is ignited by said pilot burner, said last named means including an elongated weight carrying member arranged transversely of the stove rearwardly of the burners, and a stove frame provided with a removable grid and formed with dee pressed ledges beneath the gridupon which said weight carrying member pivotally rests, 1

said depressed ledges being of suflicient movement of the weight to a hidden position beneath the grid and the stove frame after insertion.

, In testimony whereof I aflix my signature.

' JAMES E. KENNEDY.

length to allow insertion of the weight when the grid is removed and to permit rearward

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