US939890A - Stove. - Google Patents

Description

2 SHEETS-SHEET 1.

Patented Nov. 9, 1909.

STOVE.

oe ooooooooooomo APPLI UATION FILED JULY 7, 1908.

J. E. GHOLTUS & H. JEANNESSON.

. NVETU Q N as .1- ATTU N5 JEAN EMILE CHOLTUS AND HUBEBT JEANNESSON, OF PARIS, FRANCE.

STOVE.

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Specification of Letters Patent.

Patented Nov. 9, 1909.

Application filed July 7, 1908. Serial No. 442,335.

To all whom it may concern:

Be it known that we, JEAN EMILE CHOL- ris and HUBERT Jnaxnnsson, citizens of the Republic of France, and residents of Paris, France, have invented a new and useful Stove, which is fully set forth in the following specification.

This invention relates particularly to kitchen-ranges or cooking stoves of the class in which provision is made for utilizing the range and stove both for cooking and for heating the premises in which the stove is used.

The object of this invention is to roduce a stove of the kind above referred to having provision for the efficient heating of a large volume of air and for the equable dis- .tribution of the heated air in the heating compartments of the stove and among the fines or pipes through which it is distributed to the various rooms or points at which it has to be used.

To the above end the invention consists in the improved stove or range hereinafter described and as defined in the succeeding claim.

An embodiment of the present invention is illustrated in the accompanying drawings.

Figure 1 is a vertical section looking from front to back of the stove on the line AA, in Fig. 2, F ig. 2 is a sectional planview 011 the line BB, in Fig. 1, Figs. 3 and a are detail plan-views of the perforated plates for controlling the movement of drawing off and distribution of air, and Fig. 5 is a perspective front view of the stove with the top removed to disclose the interior.

The illustrated embodiment of the invention is a cooking stove or kitchen-range having the general form characteristic of such devices. It has a fire-pot 9 and an ash-pit e of ordinary form. At the right hand of the tlre-pot is the oven (Z which is provided with a door 11 at the front of the stove. The products of combustion from the fire-pot are carried over the top of the oven through a passage m formed between the oven and the top of the stove as indicated by the arrow 1. The hot gases then pass downward at the right hand side of the oven through a passage 2 and then into a passage 3 beneath the oven. From the passage 3 the products of combustion escape through a flue n which may be connected with a chimney in the usual manner.

To provide for heating air, the fire-pot pit e.

and ash-pit and the oven are inclosed on three sides and the bottom by air-chambers. The lowermost air-chamber S which may be designated as the cold air-chamber, receives air through an air inlet-pipe a which may draw air from any convenient point and preferably from the building in which the stove is used. From the air-inlet pipe a, the air passes vertically through hollow uprights Z) Z) into the cold air-chamber 8 where it is to some extent warmed by contact with the inner partition 4, forming the bottom of passage 3. From the cold airchamber a portion of the air rises into a lower heating chamber f inclosing the ash Another portion of the air rises through the openings in a perforated plate It at the right hand end of the stove and enters a heating chamber 7 where it is heated by contact with the metal wall of the passage 2. A third portion of the air from the cold air chamber 8 passes through the openings 0 of the perforated plate 0 and enters a rear heating chamber 6 at the back of the stove.

The air in the heating chamber f, after being warmed by contact with the ash-pit e rises through a perforated plate 9 which surrounds the fire-pot on three sides as shown in Figs. 2 and 5 and enters an upper heating-chamber l0, inclosing the fire-pot, where it is heated to a high degree. The heated air in the rear heating chamber 6 is drawn off through distributing pipes or flues j, 72 through which it may be delivered to any point desired. The heated air in the upper heating chamber 10 is drawn off through similar pipes j. In order to equalize the pressure in the heating chambers 6 and 10 and the flow of air through the several distributing pipes, the heating chambers 6 and 10 are connected by an opening an. The several perforated plates, including plates 9 and h, in particular help to equalize the flow of air through the several heating chambers and to break up local currents therein, so that the air is heated uniformly and delivered at a uniform and convenient temperature through the several outlet pipes.

When the oven is not in use, it may be utilized to add to the supply of hot air by opening a slide Z which normally closes, an opening Z at the back of the oven and-thereby aftording an outlet from the oven to the heating chamber 6. When, on the other hand, itis desired to use the stove only for cooking purposes, as for example, in hot weather, the air heated by the stove may be delivered out-doors by arranging one of the distributing pipes to extend to the outside of the building. In such a case the heating chambers, inclosing the fire pot and the oven, act effectively to keep the outside of the stove cool and thereby prevent overheating of the room in which the stove is used.

In order to economize the heat of the stove, heat-insulating material is employed at the points of highest temperature. A body of such material is used at z" opposite the firepot where the radiations from the fire-pot to the outer wall of the stove is greatest and another body of insulating material is used at 2' at the right hand side of the stove where the hotgases from the fire-pot strike against the end-wall in turning downward into the passage 2.

Various modifications may be made in the embodiment of our invention hereinbefore described and illustrated in the accompanying drawings within the nature of the invention and the scope of the claim.

lVe claim A stove having walls and partitions forming an oven, a fire-box, an ash-pit, a flue for heating the oven passing from the firebox over and under the oven, a cold-air chamber beneath the lower part of the flue, an upper wall of the oven being provided with a clos- 1 able opening connecting the oven and the rear heating chamber, and perforated partitions being provided between the upper and lower chambers and the cold-air and rear heating chambers respectively.

In testimony whereof we have signed this specification in the presence of two subscribing witnesses.

J EAN EMILE CHOLTUS. HUBERT JEANNESSON. Witnesses EMILE LEDRET,

H. C. COXE.

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