US915987A - Combined solid-fuel and gas bange foe - Google Patents

Description

- 0. H. MILLER; COMBINED SOLID FUEL AND GAS RANGE'POR KITCHEN AND OTHER USES.

APPLICATION FILED APR. 13, 1908.

915,987. Patented Mar.23, 1909.

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I O/miu UNITED STATES PATENT err-10E;

cHAR Es H. MILLER, or CLEVELAND, onio COMBINED SOLID-FUEL AND en's RANGE FOR KITCHEN lmi) OTHER Uses.

a No. 915,987.

' Specification of Letters Patent.

Patented March 23, 1909.

Application filed April 13, 1908. Serial No. 426,664.

T alt whom it may concern: 1

Be it known that 1, CHARLES H. MILLER, a citizen of the United States, residing at I -Oleveland, in the county of Cuyah'oga and 'State of Ohio, have invented certain new and useful Improvements in a Combined Solid- Fuel and Gas Range for Kitchen and other Y Uses; and do declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in .a

combined solid fuel and gas range for kitchen and other uses, all substantially asshown and described and particularly pointed out in the claims. I In the accompanyung drawings, Figure- 1 1s a front perspective view of the range complete, with the immediate front thereof mostly broken away to disclose the internal 7 parts and constructions. Fig. 2 is a vertical line 5-5,

The range as shown 1n the drawings comsectional elevation-of the body of the range,

and Fig. 3 is a cross section at right angles to Fig. 2'. Fig. it-is a plan view of the base of the range on a line corresponding to, aF-x,

Fig. 3. Fi 5 is a sectional plan view on prises a body B of any suitable --form-and style and provided with the usualifirepot 2 1 at thefront, which may be adapted to burn any suitable solid fuel, such as Wood or coal, but which is also provided with a suitable gas burner 3, designed toserve as a substi- -tute for solid fuel when gas may be preferred.

Either-solid fuel or gas may, therefore, be

' used in the fire pot for heating the range for cooking and baking, but for the latter purpose I provide a special gas burner, O, which may be used alonefor baking, or in connection with either hard fuel or gas in the fire potwhen baking is done. Furthermore, the hard fuel, particularly, may be used-alone for baking, as with ranges ordinarily which have no gas fittin or equipment connected with: the oven. his particular range is, furthermore, provided with afresh airchannel or space 5 over its entlre bottom, and has suitable inlet openings b through the-wall of the range from the outside, and the air flows therefrom by openings 6. into the ash-pit c beneath the grate bars, or through the so" called flue strip 7, shown in section Fig.4, and side elevation, Fig. 3, and arranged to '5 through secondary plate 8 over said chamber into a transverse depression or recess 10 which extends across the full depth of the bottom 12 of the oven from front to rear and provides .a burner chamber of limited meanscompared with the bottom of the oven be covered over flush with said bottom by the hinged plate or cover 14.- Howevenwhen the said burner C is in use, the said plate or cover 14 is open, as seen in Figs. 1 and 2, and

the products of combustion from burner C flow directly into the oven. In this case a false bottom orgrid member 15 is placed upon the oven bottom 12 and covers the same quite completely, as seen in Figs. 2 and 3, but permits the products .of combustion to conduct fresh air from said bottom chamber pass into the oven about the edge thereof,

while the heat from the burner is radiated vmore or less directly through said bottom; plate 15 into the oven and affords an even distribution'of the heat.

, Any suitable style of burner C may be employed, and the depression or recess in the bottom of the oven is preferably rectangular in cross section but might be circular or of equivalent shape; .g-If/ is important, however,- that whatever shape this recess may have'it should not materially interfere. with the heating of the bottom 12 of the oven when gas burner C is shut off and only solid fuel-is used. In such case, also, the false bottom 15 is withdrawn from the oven and the cover'or-lid 14 is closed over the burner to give-a flat bottom surface to the oven.

To 'thisend the said recess is relatively narrow, as compared with the entire width of bottom 12 and leaves the balance of said bottom undisturbed or as it isusually made,

and the said recess is otherwise so narrowand completely exposed to the heat beneath at issi'des and bottom that it does not materially or unfavorably affect the distribution of heat to the space covered thereby. The damper orcover'14 also cuts off al intake of air into the-oven from the bottom when the burner O is not being used, and in this case the dafnper22 also is closed to prevent escape of the heat from the oven. But

air taken into the oven'through hollow flue stri will be heated by radiation from the wal s which, inclosc said space5-. v

It will be especially observed that the fluespaces over flue strip 7 and air conduit is of such lengthv that it'admits fresh air to approximately the entire length of the said burner C and thus promotes the freest possible combustion in said burner. The portion of the burner not directly exposed to said strip or fine is abundantly supplied through the trough or recess 10 which 1s open to the said. flue. The

s ace not occupied at the end of the said fue strip indicated by d affords a passage for the products of combustion from the fire pot over the oven and down through flue spaces G at the side and beneath the same and thence through space d back to the smoke flue or exhaust pipe 18 at the rear of the range, thus exposing the entire under surface of the oven to the heat with the same effect practicaliy as formerly.

The products of combustionwhich flow into the oven from burner C are drawn up and along the sides and front of the oven and pass through the outlet openings 20 in the false top 23 of the oven, whence they pass into fine chamber 21 and out past damor 22 into the discharge fine to the chimney. amper 22 is preferably located and arra ed to serve as a flue strip to check direct out ow of the heat which passes upward at the left of the oven, or in other words to provide an indirect travel of the exhaust heat over false top 23. Any suitablegas burner 3 in or over the fire pot may be employed, and one or more of such burners may be used as may be deemed desirable. usual direct damper 24 at the top of the range is shown, and this may be closed when only the oven burner G is being used. Ob-

" viously, a sliding damper or cover may he usedin place of hinged member 14- or one that may be bodily placed in position and IBIHUVGd. through the oven door 16.

Damper 22 may be substituted by a fixed flue strip over false top 23, as I find in actual use of the stove, as herein described and constructed, that perfect baking is obtained within the oven even though the outlet from chamber 2]. is constantly open and hard fuel is the sole source of the heat. l'lowcvcr, an adjustable damper having a suitable controlling handle 24 is preferred as the same provides regulation when either or both kinds of fuel are being used.

One advantage in locating gas burner C in the bottom of oven D,is that the burner cannot become clogged'by soot or become inop- The erative When-coal or hard fuel is being used,-

because the wasteproducts of the hard fuel must pass out of the range through-channels of their own which are distinct and separate from the fines and chambers whichha've to do with gas burner C. The outlet ,for the waste products from the ovenis preferably located at the top'of the oven in line with the natural draft therefrom to the end that the oven itself is and always will be free and clear of the products of combustion from the fire pot although both the fire pot and oven burner be placed in use at the same time. Again, the gas burners --3 which are shown in fire pot 2 are also adapted to be used to heat cookinglor other vessels-or uten sils upon the stove at the top thereof, and because .of the construction shown the heated. products of combustion from said burners will pass around the oven and contribute to the heating of the same'with the practical purposes, and when solid j may be applied to combine with the oven burner, and fines as arranged and described herein so that gas may be used either at the fire pot or at the oven or at both places, or gas and solid fuel maybe used together, that is, solid fuel in the fire pot and gas within the oven, the two combining to give their-heat to the even without in any way affecting their respective independent operations at their place of being.

What I claim is 1. A combined solid fuel and gas range having an oven and heat fluos about the oven, and the oven provided with trough shaped depression in its bottom from front to rear across its center, a burner in said depression and a combined flue strip and air conduit dis charging into said depression and sub-dividing the heatflue partway at the bottom of the oven, and an exhaust flue open to said heat flue.

2. A range having an oven with a trough shaped depression across its middle from the front to the rear of the oven and an air inlet space in the bottom of the range over the bottom plate thereof, in combination with gas burner in said depression substantially the full length thereof, aspreader plate over said burner and raised above the bottom of the oven, and a hollow flue strip extending lengthwise with said depression and open thereto along its .top and to said air, space in the range at its bottom and subdividing the heat fine at the bottom of the'oven pa'rt- Way from rear'to front.

V I 3. A range haw'ing .an oven and a heat pression and bnrner closing the-bottom of the 10 space beneath the same, the oven being rooven.

videdwith a depression centrally at its ot- 'lntestimony whereof I sign this specificagqm, afid a1:i air suppl cgndlit' o'pfin from tionin the presence of two witnesses. eneat sai s ace an ivi in t esame .into two flues, a'hereby the heate d gasesar'e t CHARLES MILLER caused tetrav'el forward and back under the Witnesses:

oven,'in{ combination With a gas burner R. B. Mosnn,

said'de'pression and a plate over said -de- E. M. FISHER.

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