US1180029A - Combination coal and gas cooking-stove. - Google Patents

Description

Iowa.

y G.vw'. GRAVES.

ycomnmnore com AND G As cooKmG s GI W. GRAVES.

GAS COOKLNG' STOVE.

coMBmAnoN coAL AND APPLICATION FILED NOV. 9, 1914.

1,1so-o29.

Patented Apr. 18

mw. GRAVES. 'COME-[NATION COAL AND GAS C00KING STOVE.

APPLICATIUN FILED 9, i914.

Patented Alpn 18, 1916.

5 SHEETSr'SHEET 5.

ds ammira To `alllfwhom 't-magi] honcern.' I

oFoINciNNA'rI, omo, A conPonA'Tion-or omo.;

Be it known that I, GEORGE GRAVES,

of Cincinnati, in the-countyof' Hamilton nation do hereby declare the following to be a and State of Ohio, have invented. certain `-new and# useful" .Improvements in Combi- Coal aiidGas Cooking-Stoves and I gclear," and exact 'description of f the same, -'reference'being" to the accompanying Adrawings,:forming 1a part of' this speciiicafl tion, and tojthe lreference-numerals marked' fthereon.

My present invention has-for its object' to' provide an 'improved form of, cooking stove in AWhich the source of heat,'both for heating the-top surface and the oyen may be obtained, either from fuel.

' wood, consumed in the fire-box, or from gas l 2lil discharged through suitable burners and the invention coinprehends an arrangement of parts whereby such economy of space is obtainedv that. an'- oven of serviceable size is provided, While the cubical dimensionsv of the bodyfof the-stove and the surface area :of top are notincreased `by .reason of the y dual heating means.

To these and 'other ends,fthe invention 'consists -certainimprovements and combinations of-parts, all as willbe more fully de- 'scribed`,"the^novlel features being pointed out in the claimsat the end of the specification.

'- In the drawings: Figure 1 is a front ele- .vation ofv afstove constructed in accordance viewl showing the position; Fig.;v 8 is` I' view on the line '8-.8 of Fig. 6 including with my present invention; Fig; 2 is a .rear elevation thereof Fig. 3 is an elevation of the tire-box end of the stove ,Fig- 4 is a view of the opposite end; Fig. is a top plan i jvieiv; Fig.V 6 is a vertical sectional view 'through the oven,

showing the 'gas Aburner in'inopeiative position; Fig. 7 lis asimilar gas burner in operative a' horizontal sectional the supply pipe; Fig. 9'is a similar view on lan enlarged-'scale on the line Q--9 of Fig. 7 including thesupplyl pipe; Fig. 10 .is a de- ,ftailvertical sectional view on the line.10.-10

g a-IIdI-FigQll is a detail horizontal onal't ,i'ew on theline 11-11 of Fig. 1. throughout .i 4,the)several i'iexvs..indieatei5the same-parts.

iHeretofor'e in the construction of combiing purposes;

such #as coa-l or respectively. l particularly in l-closed by the ldoor- 7 forming apart ofthe' former and connected -theretolbyga verticalwall 13.

vations'toves. of this character the ditculty I, y I ooMBiNA'rioN'ooAL-Anp enscooiiiirasirovi r gas'- burners, especiallyin View of the Vfact Specication of Letters Patent.. ,i i Patentedp1- -18 l iappiieatibjiea November 9,1914. serialize.farina?.,` i

that it is .necessary to provide adequate- 'means for alsorheatiiig a portion -o-"theQ stove top Vby the use of gas burnersand to' zallow a .suitable location` f or the' accommodation of the gas burner employed forgbroil-f Generally.. tated it may be said tha-.tithe arrangement vof the oven lchamber Athe walls of the stove ycasing .is such that the products vbox are carried downwardly at the of combustion from the fire-v rear of the stove, beneath the bottom ofthe oven Y and upwardly, from the fire-box, and thencegrearwardly where they are discharged into the chimney.

In carrying out the invention I employ a stove having a casing comprising a toprl', a re-box end 2, an opposite end wall, 4al bottom 4, andv front and rear Walls 5 and 6, The oven chamber., shown Figa and 7 is normally stove casing (Figi) and it comprises the end Walls Sgand 9, a bottoinlO' and the ltop formed of the portions 1I and l12 Which'are arranged'in different 'horizontal planes, the being slight-lyvhiglier than the latter The portion Y11 of the oven top, arranged at the forward or `fire-box end of the stove, provides a recessin'the top of the oven for the accommodation Vof the burner 14- which is yused for broilingpurposes.

The top 1 ofthe stove is divided into the portions A and B. by the transversely 'extending partition 15 which is arranged at the ,end which yis remote above the i'ei'ticaljwalll of the oventop.

The .portion of ,the stove top` at the right hand end of the structure indicated by B may` be -made of any desired size but in prac tice I deem itpreferable te gime it anarea of about the same proportion as the part A `Which is heated directly from the fire-box 16. IThe top portion -of'ytlie stove body also comprises a horizontal plate 12 which may be a continuation ofthe lower part ofthe oven top 19.. This being a step belowv the higher portion -11 of thev oven top provides thegdeeper space neeessaryfor the accommodation of the seyeralburners 17 employedto 1supply] .nea-t for: the

mately circulation of the lproducts l, closed 'by the usual stovecovers.

the'end thereof" into the' ing indicated by Ausual stove pipe.

-jnation of-Fig. 2

--helplate 12a may consist of approxiv hil'f ofthe vtop of the oven, but in order' to provide for the more satisfactory 4and even heating of this part of the oven chamber, I deem 'it' desirable to provide the latter, in the upper right hand corner, with an offset top portion 12b which forms a restricted flue 18.

The up-draft and downdraft iues ofthe stove are arranged on thel rear of the casing, thedowndraft flue beingindicated by 19 (Fig.V 2), the entrance'QO of which is loc Atedabove the portion 11 of the oven top while vthel lower end 2l opens into the circulating flue 22 beneath the'oven chamber. .The lflue 22 is provided with a baffle late 23and is in'comm'unication with the en flue 24;jat the end of the oven, between the walls vi-)and 9. lVithin this end flue are arranged b'afiie plates 2 5 and 26.which insure the of" combustion -into 'contact with the entire 4"surface of the end 9 ofthe oven chamber. `The 11p-draft fine intowhich the products of combustion are discharged andthrough which they are conducted into the chimney' is indicated by 27 the mouth or discharge opening thereof bethe collar 28, to which the is fitted. From an examiit will be observed that the 11p-draft flue 27 is arranged to cover the largerportion of the'space. beneath section B h separates these parts is provided a operating handle 30, so that adequate tilation maybe obtained when the burnef" -17 lare in use, this being a provision that is especially .desirable when the top B is The up-l 4draft flue is also arranged so as to extend into proximity withthe recessed top portion. of the oven, containing' the broiling burner 14..' so that when the latter is in operation, the .fumes may be allowed to escape fr ol'n the oven chamber directly into the chimney. This is accompllshed by providrear wall of the oven an aperture v'iue 19,-and in providing the up-draftflue 2T with an aperture 32,adjacent the opening-31.` and inv further arranging a double damper composed of the-'leaves and 34 which may be adjusted to simultaneously open both of said' apertures'. This damper in its normal condition is closed causing the V products of combustion issuing from the fire-boletol pass downwardly through the iue 19.' beneath the loven and upwardly at l 11p-draft flue 27, but when the damper is in its? open position the products of. combustion may pass d1- rectly from' there-box into the adjacenu end of the flue 9.7.- thence infn the chunnevportion B'. of the stovef with the usual oven bottom. f the stove top, and in the rear wall 6' 4curjved so that its outer end the edge of the oven door, as shown, parand likewisegasao may escap into the c at the top of the oven advantage that its operation may be easily observed. i

I have incorporatedinfthe arrangement of the auxiliary gas burner, employed for` heating the oven chamber, the novel feature possesses the further-'l of -so mounting the burner that it may be removed fromits operativeI position within theoven chamber 'to a position exterior thereofby carrying it beneath a movable portion of vone of the side walls of the o ven.

In the preferred construction of the parts I provide a'side wall of they oven with a movable section. or panel which may be moved inwardly to provide a space between its lower edge and the bottom of the oven through which the burner may be introduced and which normally occupies a vertical position irrespective of the location of the burner. The panel is provided with lug/s or projections which lserve as a support for the usual adjustable oven'shelf and for the false bottom which is utilized in conjunction In illustrating this feature of the invention I have shown a burner 40 which is pivoted in the lower bottom corner of the oven and preferably at the end of the latter remote from the tire-box. The pivotsare arranged so that the burner whenin inoperative position will stand in a vertical position inrear' of the line of the end wall 9, in the. space provided for the end flue 24C of the stove. and when the burner is to be used for heating purposes yit is rotated. into the horizontall position above the bottom of the oven. The burner is pivoted at its inner end upon a lugv 4l entering the rear wall of the oven while, at its forward endl it is journale'd upon the inner extremity of the gas inlet pipe 42 which is rigidly mounted in the casing of the stove and is is offset beyond ticularly `in Figs. 8 andi). The adjustment of the burner is permitted by the movable section or' panel 9,'r1 of the end wall 9 of the oven which is preferably hinged. as indicated -at 9b, so that it may be swung inwardly as indicated in dotted lines in Fig. 6. yThis panel is provided on its inner surface with a series of lugs or projections 9c in horizontal alinementl with corresponding projection 8c on the opposingwall of the oven,

for receiving the ends or edgeslof the oven shelf. The broiling opening 3l which 1s utilized in conjunction with the burnerI 14-1 neces'sitates-fthe introduction of .a small prois norinallyrlosed and the'fals'e-bottoin, -oiheat circulating plate` which is emploveihj as shown in Fig.' .7'. causes an even distiibu-iA tion o f theproducts ofcoiiibustioii when the oven is to be lieatedbv the Igas burner 0. u In order, to obtain the circulation of heated air within the oven when the burnerv through isl prevented when the burner 40 is i in inoperative position. la convenient means of accomplishing thisobject being to locate the apertures-in the position shownin Fie.' 6', so that the burner will overlie them when it is adjusted. into inoperative position exteiior ofthe oveii chamber. In order to pro-,-

i Y tect. the bui-ner, when/in the last mentioned position, against the .accumulation of soot .carried by the air current through the flue 2%, I provide a covering or hood therefor, indicated by 411e. which is oit'set from the oven wall 9 and foi-insa recess or pocketjfor the burner. II`his cover is also provided with a pliii'alit l'of apertures Ik? cbperating with `the apertures 9d;-

h yisheati jigv of theiovei'i by'a gas flame 'pOrtinbt-aii" to support secondary coinb'iistion. Inthe present 'structure this air is admitted through a passagel leading into the bottom of theoveiiV 'at its forward edge,

' g'froni an opening beneath Athe oven door. This passage should be vclosed when the oven is heated by fuel consumed in the fire-box 16 and it should be opened more or less according to the intensitjT of the flame emitted from the burner i0 and iii order, therefore to govern-.the adiiiiss'ion of airunder these varying conditions, I have provided ay sliding damper 46 connected bv the arm 47, with the crank Sion the valve stein 49, which extends lownwardly from the valve 50. `The latter is supplied with gas from the pipe 51. and. is arranged in front of the open end of the intake pipe and the stein 49 being a continuation of the valve handle is oscillated as the valve is ,opened and closed.

If desiredthe oven door 'a' may be provided withV a hook shaped projection 5?) which surrounds the handle 52 of the valve in such a manner as to prevent' the latter from being accidentally opened, or 'these partsfinay be so arranged as to` prevent access tol the valve handle until the operator has opened the ovendoor.

I claim as my invention:

l. The combination with an oven casing having one/of its walls provided with an opening and a gas burner adjustable through said opening'intooperative position in the oven, orinoperative position exterior there- :latter and arrang -operative position. f

of.. ofa movable closure for the opening-5 which occupies a position toclose said open-Y ingy when the ,burner is within the oven.

Q. The combination with an oven casing 'having one of its walls provided with an aperture, a gas burner adjustable throughr the aperture into operative position within the oven and into inoperative position exterior thereof, of a movable closure for the aperture," shelf supports within the oven some of which are carried on the closure and a heat circulating plate resting on the supports.

3. 'The combination with an oven casing having one of its walls provided with an aperture. a gas burner adjustable through the aperture into operative position within Athe oven and into inoperative position exterior @tliereofLof a hinged closure for the :aperture swinging into` the `oven to permit the adjustment of 'the burner, shelf supports within the oven some of which are mounted on the closure anda heat circulating platev removabl)v carried on the supports,

I. The combination with an oven having one .of its sides provided with a comiiiunin in movable into andout ofthe oven',` of a closure for said compartment arranged to permit the movement of the burneriinto the oven and adapted -to clo'se the compartment when the burner is'in this position.k

The combination with an oven having a side wall composed of an lupper stationary cating c'oinparti'nent.y and a gasburner thereadapted to occupyits normal position when the burner is within theoven.`

6. The combination with an ovenliaving one of its vertical l""alls 'composed of a stationary portion an a movable portion and a wall o'set fijonv li of a gas burner lo to'be moved into the tion of the wall lm, recess when the -biirn T. The coiiibiiiatio one of its vert-icalfil movable portioii"\aiid a gas burner adjustable into and outoftlieioven beneath said movable portion va wall offset from the rrangedt-o close theV s within the oven. 'ith an oven havii'ig when it is adjusted-into'a position exterior .ills provided with av Lattei' to forni a recess` l therein and adapted ten, said movable pord-itol-inclose the burner of the oven(` said a'jertioaliy wall and offsety wall being each piiovided with ventilating,

apertures and means fon the burner for cutting ofl' vthe l l* said apertures when the burner is in the in- 8. The combination Jwith an oven having one of its vertical side Y`alls provided with a swinging panel, hin and a gas burner Vmo` able into and out of ged'at its upper edge.

circulation )of .air through being so arranged that the ,panel may be ad' justed, after the burner is moved into the oven, to close the pocket. i

9. A cooking stove comprisinga stove casing, a fire-box, an oven therein', said casing being formed tol provide a downdraft flue at the back-of the oven adjacentv (the fire boX, a cross draft flue at thebottom 'of the oven, an rip-draft iiue at the rear end .of the oven and an outlet for the latter flue in rear of the oven.

l0. A cooking stove comprising .a casinor having a top, a fire-box located beneath and arranged to heat one end portion of the top,

gas burners beneath the remaining part of' .the top, an oven extendingbeneath both of Y said portions of the stove top having a top wall provided with a portion offset to form an upwardly extending recess beneath the fire-boX-heated-portion of the stove top and a gas burner arranged in said oven recess.

l1. A cooking stove comprising a casing having Li-top, an oven locatedin the casing having a topk spaced from the top of the casing, and comprising right andfleft hand portions arranged at different elevations and forming a recess in the oven, a transverse wall between the ovenv top YVand stove top dividingthe latter into separate parts, a fire-box heating one end of said stove top and the oven', a gas burner for heating the other end of the stove top and a separate gas burner accommodated in the recess in the top of the oven.

12. In a-c'o'oking stove, the combination with a' casing comprising a top', a fire-box arranged beneath one end thereof, anoven adjacent the fire-boxl having a top of two parts of different elevations spaced from the stove top, the higher portion being adjacentthere-box and forming a recess in the`oven, ofa transverse Wall rspace between the ove'nandstove top, a gas burner located beneath the stove top and over theloiver portion .of the oven top and a gas burner also arranged in the recess n the oven.

13. A cooking stove comprising a casing embodying a top, an oven therein and a irebox at one end thereof, a partition between the oven and stove top. dividing the latter closing the v into a lfire-bmr-heated-portion andan 1111-' heated portion,.a flue plate located vbetween the oven and .the yunheated portion of the stove topfand arranged to form a restricted flue over the portion of the top of the 'oven in reanof the partition fsaidstove casing being also -arranged to form flues for carry-l latter into a fire-boxheatedportion and anunheated portion, lsaid casing being formed `to provide tlues for conducting the products of combustion from the lire-box into Contact with the oven at its rear side and end, a fluel plate disposed above the oven beneath the unheated portion of `the stove top and forming a iue of restricted area above the oven in communication with the other fines.

15. A cooking stove comprising a casing, an oven therein and a fire-box at one end of the oven, a partition intermediate the ends of theloven and between it and the stove top, 'said casing being formed .to provide a down-draft lueat the back of the oven', a cross draft flue at the bottom of the oven, and an lip-draft iue at the end of the latter, a plate located above the end portion of the oven in' rear of the partition arranged to i'orm a Hue of restrictedl area communicating with the up-draft Hue at 'the end of the oven.

16. In a cooking. stove the combination with a stove casing having a tire box, an oven in the casing comprising iXed Aside walls having guides thereon and draft tlue's for conducting the products of .combustion from the fire box into contact with the walls of the oven, of a gas burner arranged at the bottom of the oven, a gas ovenl bottom adapted to be supported on the guides of the side Walls and to coperate with the latter to form a. lower gas heating chamber and an lupper baking chamber, one of said side walls ofthe oven'being arranged to provide a cir culating air passage connecting said heating and baking chambers of the oven and thel other side wall having an outlet leading into one of the draft lues.

GEORGE lV. GRAVES. lVitnesses:

RUSSELL B. GnrrriTi-r, HARRmr T. VAX'.

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