US1251153A - Combined coal and gas range. - Google Patents

Description

6. n. WILKINSON & A. F. H-ARTEB.'

COMBINED COM. AND' GS RANGE.

Arijucmqu man MAR. 3o..|1s. v 'Y 1,251,153'. Patented Dem-25,1917. g l' I 2 gH'E'ETVs-SHEET 1 AIs. n. WILKINSON a A.I-'. IIAIIIER.

COMBINED colIL lIIIn GASIIANGE.

APPLICATION FILED III/III". a0. IIzIIa.

1,251,153. u Patented Dee. 25,1917. 2 SHEETS-SHEET 2.

UNITED STATEs PATENT OEEIOE.

GEORGE D. WILKINSON, OE OAK PARK, AND AUGUSTUS E. IIARTER, OE CHICAGO,

ILLINOIS, ASSIGNORS TO CRIBBEN & SEXTON A CDRPORATION. OF ILLINOIS.

COMIANY, OF CHICAGO, ILLINOIS,

OOEIEINEE COAL AND GA'snANGE.

Patented Dee. 25, 1917.

Application filed March 30, 1916.3. Serial No. 87,668.'

To all whom t may concern:

Be 1t known that we, GEORGE I). W ILKIN- soN and AUGUSTUS F. HARTER, citizens ot the Unite-d States, residing, respectively, at

Oak Park and Chicago, countyoi Cook,

State of Illinois, have invented al certain new and useful Improvement in Combined Coal and Gas' Ranges, and declare the following to be a full, clear, and exact description of the same. such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form fuel as-do the best types of coal ranges and which will also operate efficiently when burning gas. Y

A further object of our invention is to produce a simple and novel gas-burnin@ attachment for the oven of a coal range willich will permit the range to be transformed into 'a gas-burning apparatus by the me-re act of turning On the gas and to be converted into a simple coal-burning apparatus by the mere act of shutting off the gas.

A Jfurther object of our invention is to produce a simple and novel gas-burning lheating means for an Oven which will cause the inlet Jfor air and the outlet for combustion gases to be regulated automatic-ally in accordance with the amount of fuel which is being consumed.

A further object ot our invention is to produce a simple and novel iiame spreader for an oven heating burner which will serve also as one of the usual trays or supports found in the ordinary coal range.

The various features-of novelty whereby.

our invention is characterized will hereinafter be pointed out with particularity in the claims; but, for a-full understanding of our invention and of its objects and advantages, reference may be had to the following detailed description taken in connectionwith.

the accompanying drawings, wherein:

F1g'ure-l 1s a front elevation o'fa coal range'equipped in accordance with the present .invent-ion,v portions being broken away to expose parts which would otherwise ybe concealed;

Fig. 2 is a section taken approximately on` line 2-2 of Fig. 1; e Fig. 3 is an end view of the range looking Fig. l; and

Fig. l is a rear view ofthe range. Referring to the drawings, l represents the oven of a coal range ofy any usual or suit-l toward the left from the right hand end of able construction, below which is the ,u Sualj flue or passage, 2, through which the hot combustion gases from thecoal tire pass, and behind which is the usual vertical' outlet flue, 3.

In accordance with one feature of our invention we place a burner, Il, at aboutthe middle of the bottom of the oven, providing x for this purpose an-open ended chamber, 5, extending through the bottom wall of the oven, through the draft passage, 2,-.and through the bottom wall oI"..the drat'tpas-l sage; the chamber. 5. being bounded byya suitable shell or wall, (i, which shuts'oif. c om-v I munication with the draft, passage'q; ,The

burner is supplied with fuel througl. a. suitable pipe, 7, fixed in any suitable way on the under side of the bottom` wall oi' the range.

In order that the oven may appear just*V like an ordinary oven in a coal range, while coal is being burned, and avoid loss of efiig'Y ciency, we construct the burner in such af way that it may be raised and lowered' ,the

burner seating'itself in the cha'mbenS, and

completely closing the top thereof so thatv the bottom wall of the oven remain continuous and unobstructed, whenthe .Ovenxis being heated by burning coal, this arrangement being illustrated in Fig. l.; and the burner being raised up so as to project somewhat above the bottom wall. of the oven, as,

roo

indicated in Fig; 2, when the oven is to be'v heated by rburning gas; the parts being so` shaped that when the burnery is raised an air passage is formed around the same sov that air to support" combustion may be Vdrawn uplhrough the chamber 5. To secure the best results we prefer to make the 'top of the burner flat and imperforate, the

f discharge orifices, 8, extending radially out Q o'f `the same at a short distance below the laneI of the topsurface so that when the urnerisseated the orifices will be covered.

- For the sake of simplicity and durability Awe prefer to have the supply'pipe or conduit,

7, stationary,the inner end, 9, being bent upwardly atrthe axis of the chamber 5y andl extending l into a downwardly projecting tubular neck, 10, on the burner in which it has a'comfortable sliding fit. With this arrangement only the burner need be raised .A plypipe andenga'ges with the under edge of theI sleeve or hub portion, 1 0, of theburner. .'By oscillating the lever, the burner may be .Y 3.0

and lowered." For the purpose of controlling the position of the :burner we have provided a lever, 11, which Iis-pivoted between its ends onl the under side'of the range as at 12, so as to 'swing about a` horizontal axis; the supporting means for the lever being preferably a boss, 13, on the side lof the *supply pipe .7

which`permits`the-lever to be mounted'von" its support vbefore being placed in position under therange.l yThe inner endrof the lever,

asfindicated'at 14, embraces or ,surrounds the 'upwardly projecting part, 9, 'of the supcaused to rise to its working. position or be permitted to seat itself in its lidle positlon. The'outer end 'of the lever, as well as the outer end of the supply pipe 7 projects into or 'through an opening, 15, inv the'base, 16, upon which the "range proper is supported. The outer end ofthe pipe, 7, is. provided with the usual valved air opening, 17, into which projects a nozzle or nipple, 18, on the lower end of avvertically arranged gas pipe,

19.` The pipe 19 contains a valve, 20, from A. fully open.

We provide the valve stem with a laterally projecting ar-m, 26, and to this arm we connect the upper end of a rod Aor link, 27, the 'lo'wer end lof which is connected to the outer l end ofthe lever 11.= The result is that whenmeans must be provided to carry them away ever the handle, 23, is turned to operate the jvalve, it 'also produces a movement of the burner, causing the burner to rise from its 'Seat wlien the 'gas is turned on and to approach its seat' and finally seat itselt` as the gas is turned oft. v

i lSince the products of combustlon from the burner are discharged into the oven some and, to this end, we have placed in the top of the oven a shallow tlue, 30, opening `at its rear end into the main flue, 3, and provided with inlet openings, 31, in the front end which is nearthe front end of the oven; lVhen the range is being used as a coal range communication betweenthe interior of the .oven and the inain Hue, 3, should of course be interrupted and we have therefore provided a damper, 32, for controlling com! munication between the rear end of the flue 30 and the flue 3. The damper is xed upon the inner end of a horizontal rock shaft, 33,'

which projects out -through the side wall of the Hue 3 to the end orside of the 'range where it is provided withla' crank, 34. Since it is desirable that thedamper 32 be closed whenever the gas is sl1 utoi i" and the burner lowered, it is possiblel to secure the control of the valve, the burner and the damper from the single'controlling handle by simply providing a suitable connection between the 'damper shaft, 33, and the valve stem, 2l. the .arrangement illustrated, we have niountedbn'the end of the range a lever, 35, having at one end a fork'or jaw, 36, engaging the crank 34, on the danllper shaft; the other end of the lever being connected to the arni 26 on the valve stein by means of a link or rod, 3G. The result is that whenever the operating handle, 23, is tdrned, the controlling valve, the 'burner and the damper are shifted iny unison so that the range is and therefore, in order to avoid the use of parts which must be removed when the range isv being used as a coal range, we have provided a plate, 40, which takes the place of one of the usual trays or detachable shelves that are employed in ovens; this plate being preferably iniperforate throughout the main central portion and being cut away more or less in the 'vicinity of the four edges so that when it is pnt-,red in its lowermost position as iilustrated in Figs. 1 and 2 of the drawings, it lies just above the burner when the latter is raised, spreading the flame and causing the products of combustion to traveltothe four lvertical walls ot the oven before they rise On the into the main body 0f. the oven. under side of the plate,v40, we place a small open ended tunnel, 41,`the rear end of which extends into proximity to the burner while the front end extends into proximity to the front end yof the. stove. When the oven door,

42, isopened, the' frontend of thetnnnejs 139 fioA exposed and when the gas is turned on some of it flows out through the tunnel and may he ignited by a lighted match held at the outer end.

`When it is desired to place au pan in which something is being cooked or baked on the bottom Wall of the oven the plate, 4:0, is

simply shifted to' a higher position, yout ofposition or in any intermediate position. lnV

the arrangement shoivn this 'device takes the form of a. ilat spring, 50, secured on the rear side of the bracket or plate 22 and pressing against the valve stem. Any other suitable means may of course be employed.

`While ive have illustrated and described 'with particularity a single specific construction embodying the 'various features of our invention, We do not desire to be limited to the exact details so illust/rated and described; but intend to cover all forms and arrangements which come Within the definitions of our invention constituting the appended claims.

Ne claim:

l. ln a combined coal and gas range, an oven provided with an opening extending through one wall thereof and placing the interior of the oven in communication with the outside atmosphere, the oven having an outlet for combustion gases, a burner movahly arranged in said opening and serving as a controlling valve therefor, a damper for 'said outlet, and means for shifting the burner and the damper in unison With each other to maintain the proper relation between the air inlet and the outlet forilt'lie combustion gases.

2. ln a. combined coal andv gas range, an oven having an opening through the beu tom thereof and a discharge outlet for combustion gases,- a burner arranged 'within said opening in the bottom of the oven and movable from a position in which it closes the opening and' has its upper surface flush With the top of the bottom Wall of the oven to a position in which a portlon 'of the .burner projects into the oven, a

damper for the said discharge outlet, and means for simultaneously shifting said burner and said damper.

3. ln a combined coal and gas range, an oven having an opening through the bottom thereof and a discharge outlet for combustion gases, a, burner arranged Within said openingv in the bottom of the oven and movahle from a position in which it closes the opening and has its upper surface flush with the to of the bottom Wall of the oven to a position in which a portion of the burner projects into the oven, a damper for.

the said discharge' outlet, a fuel valve; and means for simultaneously adjusting. the valve, the damper and the burner.'-

4. ln a combined coal and gas range, an

oven having an air inlet opening extending through one Wall thereof, a burner having a part cooperating with said opening to serve as a valve therefor, a device for controlling the supply of fuel to the burner, and means for simultaneously shifting said device and said burner to control the flow of fuel and vary the effective area of said air inlet opening according to the amount of j fuel which is being delivered.

5.v ln a combined -coal and gas range, an

-oven having an opening through the bottom thereof, a gas conduit arranged underneath the ovenand havingits inner end projecting into said opening,`a combined burner and valve for said opening having its inlet end arranged to slide vertically on the adjacent end of Said conduit, an actuating lever for said combined burner and valve, a fuel valve, and means for simultaneously actuating said fuel valve and said lever.

6. ln a combined coal and gas range, an oven having an opening through the bottom thereof, a combined burner and valve in said opening, and means for supporting said burner and valve in a position wherein it closes said opening er in any one of a plurality of positions in each of Which the burner and valve extends upwardly into the oven.

ln testimony whereof We sign this speciication.

` GERGE D. lVILKINSON. AUGUSTUS F. HARTER.

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