US1524624A - Stove appliance - Google Patents

Description

A. LIBERMAN STOVE APPLIANCE Filed May 15, 1924 :s Shets-Sheet 1 IN VEN TOR.

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A. LIBERMAN STOVE APPLIANCE Filed May 15, 1924 a ,snets-sheet 2.

V Jan. 27. 1925.

A. LIBERMA STOVE APPLIANCE Fil d May 1-5, 1924 3 Sheets- Sheet 5 INVENTOR. A ZZ'fl/Zflfllj zferzzzan '7 TTORNEYS.

Patented Jan. 27, 19258 ABRAHAM LIBERMAN,

0F (CLEVELAND, onro.

STOVE APPLIANCE.

Application filed May 13,

To all whom it may concern:

Be it known that I, ABRAHAM LIBERMAN, a citizen of Poland, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented new and useful Improvements in Stove Appliances, of which the following is a specification.

My present invention pertains to attachments for gas stoves of the natural or artificial'type and it contemplates the provision of a safety appliance through the medium of which should the gas that is flowing to the burners be'extinguished the flow of said fuel to said burners will be automatically discontinued.

The invention further contemplates the provision in a gas stove of a safety attachment that is positive in operation and functions by the flow of gas itself if for any reason ignition of the gas at the burner rings is interrupted.

Other objects and'advantageous features of the invention will be fully understood from the following description and claims when the same are read in connection with the drawings accompanying and forming part of this specificationinwhich Figure 1 is a top plan view of my novel stove and showing same provided with two burner-units and the safety gas cock attachments. 7

Figure 2 is a vertical section of the stove and showing the various elements in normal position that comprise my safety attachment. I

Figure 3 is a view similar to 'Figure 2 but showing the position the elements assume when the flow of gas to the ignition point of the burners is interrupted.

Figure 4 is a longitudinal sectional view of the burner used in the units and taken on the line44 of Figure 5 looking in the direction of the arrows.

Figure 5 is a horizontal sectional view taken in the plane indicated by the line 5-5 of Figure 4. r

Similar numerals of reference designate corresponding parts in all the views of the drawings. f

My novel stove is indicated by 1 and may be of the type illustrated or any other type suitable to its purpose and the stove illustrated comprises a front wall 2 and a rear wall 3 and arranged in the stove is a plate or support 4; and provided at the usual 1924. Serial No. 713,085.

point adjacent the front wall 2 is the ordinary well known inlet fuel supply pipe 5.

Mounted in any approved manner on the support 4 are my novel burner rings 6 and arranged on the supply pipe 5 are the gas kets 7 and adapted to operate the ordinary gas cock are handles 8 and depending from the handles or cocks 8 is a downwardly eX- tending leg 9 while secured to the front wall 2 at one end and the leg 9 at the oppo site end is a spring 10. Manifestly the leg 9 will travel in an arc with respect to the front wall of the stove. Arranged below the leg 9 is a toothed semi-circular rack 11 that is adapted to normally engage the lower end; of the leg 9 and retain same in open position against the action of the spring 10 and the said rack 11 is arranged on the extreme outer end of a bar 12 that rests below the support 4 and "is pivoted at 13and'arr-anged in the front and rear walls 2' and.- 3 are slots 14 and 15 respectively whereby play upwardly and downwardly of the bar 12 is permitted.

Extending from the main gas supply pipe 5 are the inwardly directed feed. pipes 16 that connect with the burners 6 while extending from the rear of the burners are the pipes 18 that are flared at 17 for an important purpose hereinafter set forth.

As will be readily seen by reference to Figures 2 and 3 the pipes 18 connect with the T-pipe 19 and communicating with the said pipes 19 is a bellows 20 provided on its upper end with a bulb 21.

Pivoted at 26 on the bracket 24: is a member as before stated is pivoted at 26 by means of a saddle 27 while arranged adjacent a bracket 24: is a bracket'28 on which the pivoted member 30 is journaled at 29. I

The pivoted member 30 is provided with v the noses-31 and 32 respectively. .Arranged below the flat base 22is a lateral rod 34 that is connected with a bar 33 that extends the full length of the stove and is provided with the handle 35. a

As shown in Figures and 5 the burners 6 consist of the main body portion 37 having the capv 38 and atone end I provide an inlet 39 and the said burners are provided with the apertures t0 while arranged to communicate with said apertures 40 are the projections -11 that are hollow throughout and communicate with the burner apertures 40. These projections 41 may be of any number and they are provided with the slots or channels and arranged so as to direct gas to the flared mouth 17 of the pipes 18 are a series of projections 12 as illustrated. By the arrangement of the members 41 and 12 gas while burning will be sucked up through the projections ll because of the natural affinity of gas for flame but if the gas is extinguished the projections will cause the gas to be spread around the interior of the burners to the flared mouth above re ferred to. When desired a battle having a small opening at its base may be arranged immediately in rear of the projections 42 and preferably within the flared mouth 17 and when such a device is used back draught and the consequent driving of unburned gas back into the burners will be effectually precluded. 7 j

The working elements of the device are confined within the cabinet 13 that is mounted in rear of the stove.

In the practicalbperation of the device thehandle 8 of the'feed pipe 16 is moved to permit flow of gas to whichever burner it is desired to light. The arm 9 will ride along the arcuate toothed rack 11 and said arm will prevent the spring from pulling of the handle 8 back to its closed'position. If for any rea'son', the flame should become extinguished, the gas because of the projections 41 and 42 will be forced to travel into the flared mouth 17 down' the pipe. 18' to pipe 19,and will inflate the bellows 2O with the consequent inflationbf the bulb 21. Normally the device and the f working elements thereof retain the normal position shown in Figure 2but when the inflation before set forth takes place, theworking elements will assume the positions shown in Figure 3. Inflation of the bulb 21 will causev the flat base'22 to cantor pivot on the support 2 1 and the ball will travel to tth e forward end the casing 23 causing .thelower end thereof .to'lmove the nose 31'downwardly and rock the member on a the support 28 and'con sequently li'ft the nose 32which in turn bea i's on the end of the rod 12'. This action will-cause one end of the rod '12 to move upwardlyiand the pivoting of the rod at;13 will forcethe outer end of said rod downwardly thereof disengaging the toothed rack for the leg 9; This will manifestly permit th'e 'springdO to pull the handle toward the front wall 2 of the stove thereby automatically cutting off the flow of gas to the burner." r v v The device comprises an eiitremely small number ofelement-s but said elements are so constructedthat the liability of same becommg inoperative after a short period of use is eliminated. It will be readily appreciated that positive operation of the device will take place if for any reason the burner is extinguished and at the same time flow of the gas to the flared mouth is also assisted because of the well known fact that the heated gas will travel to the burners and the outlets thereof while cold gas or that which does not reach the burner outlets will naturally traveldownward and eventually to the flared mouth 17 The ball 24 assists in both downward and upward movement of the casing 23 and the return of the casingto its normal position is accomplished'by simply turning the handle 35 so as to cause rod 3i to push against the casing 23 and force same upwardly to the position shown in Figure 2. V

I would distinctly have it understood that 1 do not wish to be confined to any particular size, shape or material ofthe elements employed in my device for the reason that I reserve to myselfthe right tomake such changes and modifications in the future construction and practical'us'e of said invention that fairly fall within the scope of my appended claims.

Having describedmyinvention, what I claim and desire to secure by Letters-Patent isz- 1. In a safety appliance for'stoves, the combination of a burnei having'tubular projections arrangedjtherein and adapted to communicate therethrough with the burner openings, inlet pipes tothe burners,c0cks arranged on the'inl'et'pipe', springs secured to the cocks and to the front wall ofthe stove. a leg 'sec'i'ired to the cocks, a flared mouth arranged to communicate with the burners, means for diverting unburned gas from the burners to the flared mouth, a pipe secured to the'flared mourn bellows securedto one end'of. the pipe, a ball arranged on the endof the bellows. a bracket arranged adjacentthe bellowsga pivoted member arranged on the bracket and having' a casing on one endin which a ball is confined. a second bracket arranged adjacent the first'bra'cket, a saddle arranged on the second bracket and having upwardly extending ends, a rod pivotedly' arranged below the burners and having one end adapted to be actuated by one of the projections of the saddle, a toothed rack arranged on one end of the ro d and adapted to normally engage the lower'end of the leg of the cock, and'mean's for returning the casing that contains the movable ball to its normal position. I, Y

2'. In" a safety appliance for gas stoves and the 1ike',jthe combihation' of burners, feed pipes communicating with the burners, means arranged within burners for di- 're'cting, gas" that is continuously igniting,

in one'direction and gas that is not ignited at the burners, in a rearward direction away from the burner holes, a cock for controlling the supply of gas to the burners, means for normally holding the cocks in open position and other means for automatically returning the cooks to their closed positions and comprising a pipe having a bellows and bulb communicating therewith, a rociring platform actuable by the bulbs, a second platform actuable by the first platform in one direction and a rod actuable by the second platform in one direction to release the lower end of the cooks and means for returning the platforms and rod to their normal position.

3. In a safety appliance'for gas stoves, the combination of burners, tubular projections arranged within the burners and communicating with the burner holes, cocks for controlling the supply of gas to the burners, a spring for placing the cocks under tension when open and a bar having a rack that engages a portion of the cooks to retain them in open position, a bellows having a bulb actuable when the flow of gas is interrupted to the burner outlets, a platform actuable by the bulb and adapted to actuate a second platform that in turn actuates the rod on which the rack is arranged and means for returning the rod to its normal position.

4. In a stove, the combination of burners a main gas supply pipe arranged in front of the burners, a valve for controlling the supply of gas to the burners, a leg'secured to the valves, a spring secured to the leg for placing same under tension when the valve is open, a rod pivotedly mounted below the burners and having a rack that engages the leg'of the valve, a bulb mounted on one end of a bellows and adapted to be inflated by gas, from the burners, that does not reach the burner openings, a pivoted platform movable by the bulb, a casing secured to the platform, a marble arranged in the casing, a member having upturned portions at each end pivotedly mounted below the casing and movable in one direction thereby; said last named member being adapted to actuate the arm on which the rack is mounted, and means for returning the working elements to their normal position, substantially as and for the purpose specified.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

ABRAHAM LIBERMAN.

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