US1937658A - Ignition device for gas burners - Google Patents

Description

Dec. 5 1933. O J LEINS 7 1,937,658

I IGNITION DEVICE FOR GAS BURNERS Filed April 5, 1930 2 Sheets-Sheet l Dec. 5, 1933. EIN r 1,937,658

IGNITION DEVICE FOR GAS BURNERS Filed April 5, 1930 2 Sheets-Sheet 2 Patented Dec. 5, 11%33 resist paras are llGNli'illlUN DEVECE FOR GAS BURNEERS Application April 5, 1930. Serial No. il il57 6 Claims.

This invention relates to certain new and useful improvements in ignition devices and refers more particularly to means for igniting gas burners and the like from a pilot light, especially where the burners are located remote from the pilot light and beyond reach of, or outside the path of, a flame projected from the light.

Modern gas ranges are all equipped with some means of providing ignition for the burners of the cooking section, and while attempts have been made to adapt the same means to ignite the oven burner, all methods heretofore proposed have been unsuccessful due to the greater distance of the oven burner from the pilot.

It is therefore an object of this invention to provide safe ignition for an oven burner.

Another object of this invention resides in theprovision of means whereby the usual pilot light of a gas range may be used to ignite its oven burner, and/or simmering burner, and/or any burner exterior to but near the range proper,

such as the burner of a water heater and the like which may be located adjacent the range.

Another object of this invention resides in the provision of means for conducting gas from an oven burner and the like upon its connection with a source of supply to meet a flame or flash projected from a pilot light to provide positive and quick ignition for the oven burner.

Another object of this invention is to provide means whereby a flame projected from a pilot light to one burner may be used to ignite another burner located outside the path of the flame.

And a further object of this invention is to provide means whereby a pilot light adapted to ignite the cooking section burners of a domestic gas range, also provides ignition for the oven burners where the oven chamber is located beneath the cooking section..

With the above and other objects in view which will appear as the description proceeds, my invention resides in the novel construction. combination and arrangement of parts substantially as hereinafter described and more particularly de flned by the appended claims, it being understood that such changes in the precise embodimerit of the hereindisclosed invention may be made as come within the scope of the claims.

In the accompanying drawings, I have illustrated several complete examples of the physical embodiment of my invention constructed according to the best modes I have so far devised for the practical application of the principles thereof, and in which:

Figure 1 isa top plan view of a portion of a gas range illustrating my invention applied thereto, said view having portions broken away to illustrate structural details;

Figure 2 is a transverse sectional view taken through Figure 1 on the plane of the line 2-2;

(Cl. 1581l.5)

Figure 3 is a sectional view taken through Figure 2 on the plane of the line 3-3;

Figure 4 is a cross sectional view takenthrough Figure 2 on the plane of the line 4-4;

Figure 5 is a perspective view illustrating the manner of applying my invention to gas ranges in which the oven compartment is located beneath the cooking section;

Figure 6 is a detail view showing one means whereby a burner outside the path of a pilot flame may be ignited by the flame; and

Figure 7 is a detail perspective view of the structure shown in Figure 6.

Referring now more particularly to the accompanying drawings in which like numerals designate like parts throughout the several views, the numeral 5 represents the oven of a conventional gas range, and 6 the cooking section thereof. As

is customary the cooking section has a number of burners 7 which are adapted to be connected with a fuel supply through a stringer pipe 8 upon opening of their respective valves or cocks 9. The oven is provided with a burner 10 of any suitable design which is also adapted to be connected with the stringer pipe upon opening of its associated cock 11.

Ignition is-provided for the burners 7 by a pilot flame burning at a tip 12 which is connected through a tube 13 and a valve 14 with the stringor 8. The valve 14 is of conventional construction and has a by-pass permitting sufficient fuel to flow to the tip to maintain the pilot flame and is adapted, upon depression of a push button 15, to suddenly increase the volume of gas flowing to the pilot tip.

As best illustrated in Figures 2 and 3, the tip 12 is threaded on the outer upturned end of the tube 13 to which the bottom 16 of anenclosing housing indicated generally by the numeral 17, is also secured by jam nuts 18. The top and sides of the enclosing housing 17 are preferably formed from a single piece of bendable metal stamped to substantially inverted cup-shape and frictionally engaged with the bottom 16 as clearly illustrated.

The cylindrical side wall 19 of the housing has four diagonally located apertures 20 formed therein in substantially axial alignment with correspondingly located orifices 21 in the tip 12 from which the gas continually issuesto feed the pilot flame. Upon depression of the push button 15.

the increased volume of gas conducted to the pilot tip produces long flashes or flames which, as

indicated in dotted lines in Figure 1, extend through the apertures 20 toward the various burners '7.

To enable the pilot light to be used for igniting the oven burner 10, novel means are provided for connecting these two elements. This means incorporates a fifth aperture 22 in the cylindrical wall 19 of the enclosing housing in axial align= ment with a fifth pilot tip orifice .23, and a tube 24. One end of the tube 24 extends into the opening 22 and is assembled with the housing 17 by having a tongue 25 projected from its upper portion, passed through a slot 26 in the bottom peripheral edge of an inner cup-shaped member 27 carried by the top wall of the enclosing housing, to be directed upwardly as illustrated. Actuat-ion of the push button valve to flash the pilot flames, thus also causes a flame to be projected into the tube 24.

.The opposite end of the tube 24 is belied or flared as at 28 and terminates adjacent the burner 10 where it is supported and held against shifting by being engaged in a recess formed in a bracket structure 29 preferably cast integral with ers located beyond the reach of a the burner. As best shown in Figure 4:, the en-t trance to the recess is slightly restricted so that theresiliency of the tube maintains the same against detachment, however, a strap 29 may be added to positively hold the tube in position.

An opening 30 formed in the burner wall in axial alignment with the tube 24 directs gas into the tube upon connection of the burner with the source of fuel supply, to meet the flame projected into and conducted through the tube from the orifice 23, and be ignited thereby. As soon as the gas issuing from the. burner is ignited it flashes back. to burn in a flame at the opening 30.

To conduct the flame at the burner opening 30 to the burner ports 31 which 'in this instance are located at the bottom of the burner, a series of apertures 32 are provided leading from the opening 30 to the bottom of the burner.

Toinsure positive continuous flame travel within the tube 24', it is preferably formed with a longitudinal slot or opening 33 at its bottom and extending throughout its entire length, or it may have a plurality of openings formed therein.

From the foregoing description taken in connection with the accompanying drawings, it will be readily apparent to those skilled in the art to which an invention of the'character described appertains that I provide a practical and" safe means of providingignition for a burneror bumflame flashed from a pilot light.

It is also obvious that the principle ,of this invention is readily adaptable to the many different types of range construction, and Figure 5 illustrates its application to a gas range wherein the oven is beneath the cooking section. In this modification; the tube 24 is replaced by a tubular member 34 having substantialy horizontal and vertical portions 35 and 36 respectively. The open end of the horizontal portion is connected with the pilot light structure, in the manner hereinbefore described and the open end of its vertical portion terminates. in line with an aperture formed in the burner 37.

The operation, in this instance is the same as that described in connection with the structure illustrated in Figures 1 to 4 .inclusive, that is, upon actuation of the push button valve controlling the supply of fuel to the pilot light, a flame is projected into and conducted through the horizontal portion of the tubular member to meet and ignite the gas which flows upwardly into the vertical portion of the tubular member upon connection of the burner with the fuel supply.

Figure 6 illustrates the manner in which a simmering burner 38 or any other burner located outside the path of a flame projected from the source of fuel supply, a pilot light spaced from meet and ignite the fuel therein.

eas es r pilot light may be ignited by providing a tube 39' carried by or supported in any other suitable manner adjacent the simmering burner to extend from the burner to the path of the flame.

It is also understood that the specific men tion in the foregoing description, of oven burners is not intended to limi'tthe invention thereto. Other burners such as those of broiling ovens and water heaters may be ignited by the I structure hereindescribed without deviating from the spirit of the invention.

What I claim as my invention is:v

1. In a device of the character described, a burner, means for connecting the burner with a the burner, the burner having an opening to direct fuel toward the pilot light, a tubular member connected with the burner in axial alignment with said opening and with said pilot light to conduct the fuel toward the pilot light, and means for projecting a flame from the pilot light toward the burner to meet and ignite the fuel in said tubular member.

2. In-a device of the character described, a burner, means for connecting the burner with a source of fuel supply, a pilot light spaced from the burner, the burner having an opening from which fuel issues in 'a direction toward the pilot light, a tubular member in axial alignment with said opening connected with the burner and terminating adjacent the pilot light for conducting the fuel issuing from the burner opening toward the pilot light, and means for. projecting a flame axially into said tubular member to 3. In a device of the character described, a burner, means for connecting the-burner with a source of fuel supply, a pilot light spaced from the burner and including a supporting structure and a tip having an orifice pointed toward the burner, the burner having an opening from which fuel issues in adirection toward the pilot light, a tubular member in substantially axial alignment with the pilot tip orifice and the burner opening to conduct fuel issuing from the burner opening toward the pilot light, and means for projecting a flame from the pilot tip orifice into the tubular member to meet and ignite the fuel therein.

. 4. The combination with a burnerand means for connecting the same with a source of fuel supply, of means for igniting the burner comprising, a pilot light spaced from the burner, the burner having an opening through which fuel passes, a tubular member .into which the fuel 130 suing from said opening flows. and means for projecting a flame from said pilot light axially into the tubular member tomeet and ignite the fuel therein. j

5. In a gas lighting device including a pilot flame and a housing therefor, the combination of a burner, means connecting said burner with said pilot housing, means on said burner to cause a limited quantity of gas to flow through said first named meansat predetermined times and means to project a iiame into said first named means to ignite said gas. I

6. In combination with a pilot flame, a housing therefor, a gas burner, a tubular member mounted on said gas burner and terminating in 145 said housing, means to cause a limited amount of gas to flow through said tubular member and means to project a flame through said tubular member to ignite said gas.

' OSCAR J. LEINS. 1

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