US2248991A - Ignition device for oil ranges - Google Patents

Description

July 15, 19 41.-

u o. A; HEDENGREN IGNITION DEVICE FOR OIL RANGES Filed'vec. 9, 19:7

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lhu/enor Patented July 15, 1941 r jorsics IGNITION DEVICE FOR OIL RAN Ossian A. Hedengren, Taunton, Mass; assignor to Sears, Roebuck and 00., ChicagoJIlL, a corporation of New York Application December 9, isav iseriarno. 8.91s BI'Claims. (Cl; 158-90) This invention relates to oil ranges and to combination oil and gas ranges, and-is concerned more particularly with the ignition of oil burners.

It has heretofore been necessary to ignite oil range burner wicks-or kindlers by hand, requiring either raising-the cylinder or other shield of the burner and applying a lighted match and then lowering the shield or projecting the lighted end of a long rod down into the shield. In localities where gas is available this inconvenience may be avoided by equipping the range with mechanism of my invention.

Further objects and advantages of my invention will appear as the description proceeds.

In the accompanying drawing the figure is a fragmentary elevation showing oil burners or the like combined with automatic-igniting means of my invention.

The burners It may be mounted on any suitable frame F-and are supplied with kerosene or other liquid fuel through vertical feed tubes H, the fuel being introduced tothe tubes laterally, asatl Id. The tubes ll terminate at their bottoms in' carbon legs I lb,each closed by a screw cap- Hc, whereby carbonand other solids settling out of the fuelmay be removed. The-bumers are provided with asbestos or other suitable kindlers l2 projectingfreely upward from the fuel containers or bases l3 of theburners, said bases supporting perforated shields such as cylinders or drums l4 which-surround the free tips of the kindlers. The bottoms of the shields are surrounded by flanges l5 on the bases of the burners.

Pivotally supported at other suitable part of the structure is a lever l8 having at one end a knob 19 projecting to the outside through an opening 20 in the casing 2|. Links 23 pivoted at 24 to the other arm 25 of the lever have forked ends 26 in whose crotches hooks 21, attached to adjacent portions of the drums 14, are received. Now it will be observed that the knob 19 is normally held in the position shown in full lines, as are the other parts cooperating therewith, and upon depression of the knob the drums are tilted as indicated in dotdash lines, the flanges l5 preventing dislocation of the drums. When the knob is released, gravity will return the parts to their full line positions. If desired structural means could be provided for this purpose.

An important feature of my invention involves the application of a flame to the kindlers while they are exposed by the tilted drums. To this end a pipe 30 from a suitable source of gas leads I! from the frame or to a valve 3| from which extends a pipe 32 which projects up between the burners and terminates in apilot 33. A small pilot flame is normally kept burninggth size of the'flame being controlled by means of aby-passscrew 35. A-pushbutton valve stem 36 associatedwith the valve 3| is urgedoutward to closed position by a spring (not shown) in the valve body. When the stem 36 is depressed, there. is I an increase 'in toflthe-pilot so that jetsof flame as shown at 38 are emitted and so directed'as to strike the kindlersof theburners when unobstructed by the cylinders-l4. V 'lfudesiredlthe knob could be depressed to tilt the cylindersto-the' desired extent and then the attendant could L pressthestem separately with his finger until the pilot'flame jets ignite the kindl'ers; whereupon'both knob and stem could be released The knob and stemthus could be located apart or adjacent 'eachother. However, I preferlto'.providemeans whereby both actions may be effected merely by moving the knob l9. 'Laocordingly provide the knob with a lug 40 arranged to impinge :upon the valve stem 36 before-the knob has completed its actuating movementand so that when such movement is complet'ed' the cylinders l l are adequately tilted'and the-jets'of flame directed to and ignite the adjacent kindlers' of'the burners. This requires but a momentor twd and then the knob is'released 'allowi'ng the shields to be returned, the receding lug 40 permitting the stem 36 to be returned by the valve spring to its closed position so that the small pilot flame continues to burn, the parts being thus ready for the next lighting operation without further ado. same result could be obtained in various ways, as, for example, by extending the height of the stein and allowing the knob to depress it.

If desired, separate provided for each cylinder, either with a common pilot or separate pilots. The links may be readily removed from the lever, or disconnected from the hooks 21, so that either cylinder may be elevated without the other. The mechanism is accordingly applicable to a single burner or any desired number of burners.

Although I have illustrated burner construction of the blue flame type, it will be appreciated that my invention is applicable to burners of all types employing drums or equivalent shields.

I am aware that many changes may be made and numerous details of construction varied through a wide range without principles of my invention, and I therefore do not Of course, the

elevating means could be departing from the.

purpose limiting the patent granted hereon otherwise than as necessitated by the prior art.

I claim:

1. A burner having a fuel container and a shield movably associated with said container, means for shifting said shield to expose said fuel, means providing a pilot gas flame in such proximity to said fuel that a jet formed from said flame will ignite said fuel, and means for projecting said flame into the form of a jet isniting said fuel while so exposed, said flame projecting means being so arranged as to be operated by said shifting means.

2. A plurality of burners, each having a fuel container and a shield movably associated therewith, means for shifting all of said shields to expose the fuel in each container, and means operated by said shifting means for simultaneously igniting the fuel in all of said containers while so exposed.

3. A plurality of burners, each having a fuel container and a movable shield therefor, means for shifting said shields to simultaneously expose the fuel in all of said containers, means providing a gas flame pilot in such proximity to the fuel that jets formed from said flame will ignite the fuel in all of said containers, and, means operated by said shifting means for projecting said flame into a plurality of jets simultaneously igniting the fuel in all of said containers while so exposed. n

4. The combination in an oil burning stove, of a burner including combustion tube means arranged to be elevated for lighting the burner, means for elevating said combustion tube means including a manually operable pivotally mounted lever, and a flame projecting gas lighter directed toward said burner including a control, valve arranged to be actuated by said lever for oper-e: atlng the lighter as an incident to movement of said lever for elevating said combustion tube means.

5. The combination in an oil burning range or the like, of a burner including a vaporizing bowl having an open top recess therein adapted to contain a supply of combustible fuel and sur-, rounded by an upstanding annular flange, a combustion tube assembly removably positioned on said bowl over said recess and within said flange, an operating lever pivoted intermediate its ends, and means including a link pivotally connected to one end portion of said lever and to a side wall portion of said combustion tube assembly for tilting the latter about an edge portion of said flange without disengaging the same in response to movement of said operating lever to thereby expose a portion of said recess for ignition of the fuel therein.

6. The combination in an oil burning stove, of burners including combustion tube means arranged to be elevated for lighting said burners, means including a manually operable element for elevating said combustion tube means simultaneously, and igniting means applicable simultaneously to said burners and including a control member arranged to be actuated by said element for operating said igniting means to ignite said burners simultaneously as an incident to movement of said element for elevating said combustion tube means.

7. The combination in an oil burning stove, of a burner including combustion tube means arranged to be levated for lighting said burner, means including a manually operable element for elevating said combustion tube means, and igniting means applicable to said burner and including a control member arranged to be actuated by said element for operating said igniting means to ignite said burner as an incident to movement of said element for elevating said combustion tube means, said igniting means when operated being positioned in operative relation to said burner so that the movement of said manually operated element to elevate said combustion tube will be effective to ignite said burner.

8. The combination in an oil burning stove, of a burner including combustion tube means arranged to be elevated for lighting said burner, means including a manually operable element for elevating'said combustion tube means, and igniting means fixedly positioned in operative relation to said burner and including a control member arranged to be actuated by said element for operating said igniting means to ignite said burner as an incident to movement of said element for elevating said combustion tube means so that the movement of said manually operated element to elevate said combustion tube will be effective to ignite said burner.

OSSIAN A. HEDENGREN.

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