US727287A - Cooking-range furnace, &c. - Google Patents

Description

No-. 727,287. 7 I PATENTED MAY 5, 1903.

J. J. GARTWRIGHT.

COOKING RANGE FURNACE, 6w.

APPLIOATION nun sum. so, 1902.

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PATENTED MAY 5, 1903.

J. J. GARTWRIGHT. COOKING RANGE FURNACE, 8w.

APPLIQATIQN FILED SEPT. 30. 1902.

2 SHEETS-BHEET 2.

10 MODEL.

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Fig. 3.

UNTTED STATES Patented May 5, 1903.

PATENT OFFICE.

COOKING-RANGE FURNACE, 800.

SPECIFICATION forming part of Letters Patent No. 727,287, dated May 5, 1903. Application filed September 30, 1902. Serial No. 125,390. (No model.)

To all whom it may concern.-

Be it known that I, JOSEPH JOHN CART- WRIGHT, coal merchant, a subject of the King of Great Britain, and a resident of 182 Abbey Foregate, Shrewsbury, in the county of Worcester, England, have invented certain new and useful Improvements in Cookingltange Furnaces and other Fireplaces, of which the following is a specification.

The objectof myinventionisimprovements in cooking-range furnaces and other fireplaces, whereby I am enabled to effect a considerable saving in fuel by'obtaining and utilizing more heat from a given quantity than is at present the case, and this advan-- tage is mainly gained by an arrangement and construction of the fireplace by which more air is admitted and a more perfect combustion results therefrom. Besides, my fireplaces are cheaper to manufacture than those at present used, and, moreover, since my grate-space is divided up into compartments which may all or any be made to hold fires at will it is possible to either have a large mass of fire composed of several compartments or to restrict the fire to only one compartment, in which it would be most effective, and owing to the facilities which my arrangement affords for manipulation of such fire I am enabled to maintain such fire at a low heat with only a small supply of fuel until such time as a larger fire is required.

In order to facilitate conception of my invention and enable the same to be carried into practical effect, I have appended hereunto two sheets of drawings upon which I have illustrated my invention;

Figure 1 is a front perspective elevation of a cooking and heating range illustrating my furnace applied to the same, showing the front on with the exception of a small draw or baffle plate, which is shown in detail at ing my furnace in position, the front being removed. Fig. 3 is a view of a small draw or baffle plate to be used as occasion may require. Fig. lshows theinteriorof my furnace, being a vertical side sectional elevation taken on the line X Y. Fig. 5 shows a double divisional plate P, which may be used in place of the plate P, which is shown for dividing the upper portion of the grate into a right Fig. 2 is a similar view to'Fig. 1,showand left hand fire, the space 9 permitting of a central draft. In Fig. 6 a tube is shown perforated with holes, of which a divisional wall might be built in lieu of the plate P. Fig. 7 illustrates the form in which I make my furnace as a basket to place inside existing range-grates by removing the false grate and bars as well, if necessary. Fig. 8 illustrates my invention applied. to an ordinary open fireplace'for parlor or bedroom.

In carrying out my invention as applied to kitchenmanges I leave about the usual-sized grate-space between the ovens, and instead of fitting this with the usual grate-bottom and heavy cast-iron false bottom and front bars I fix three pairs of angle-rests r, r and "r Upon the latter pair an ash-tray A rests, and upon the two upper pairs of supports perforated plates D and D rest, thus dividing up the grate-space into three main horizontal divisions. The top space or fireplace is then divided vertically into a right and left hand fire-space by a perforated partitional plate P, which is bent at right angles, so as to form a top part over one firespace and act at the same time as a rest for cooking utensils, or the plate P, as shown in Fig. 5, may be substituted for plate P, so as to get a central air-draft space 10, and it will be evident that this'plate might be made integral with the perforated'bottom D, which forms the perforated diaphragm between the upper fire-spaces S and Stand the under fire-space ,S, or in .some cases -the vertical position of the uppecfire-space might consist of a wall of pipes O,as seen at Fig. 6, placed horizontally fromback to frontof the space. It may here be mentioned that the perforated diaphragms D and D and the partitional plate or .wall may be made either of sheet-metal stampings or cast metal or of fireclay or asbestos or other fire-resisting material.

The front plate F would generally be of metal and usually a stamping, and is either held in vertical slides fined to the fireplace or itself be screwed to the fireplace sides. This front plate is perforated with small holes opposite the upperfireplaces S and S and is provided with an air-spacef and a chargingspace f through which fuel is fed to the under fire-space S, which latter may be covered at will by the small draw-plate d,which ledges on two catches c.

A pivotally-supported dust-plate or ashesdefiector a is also provided and rests on a lip l by its forward end being pivoted about its middle. This plate slopes back toward the rear of the grate and may be caused to tip automatically with a certain weight of ash or be tilted by hand. The ashes then slip OK the plate and fall through the rear of the perforated diaphragm D into the ashestray A.

Suppose a fire be laid in spaces S and S These would be kindled by lighting paper or shavings placed on the ashes-deflector plate a and would heat both ovens. The fire-space S is more particularly arranged for a fire to heat the back boiler, whose flue b is opposite the fire, and any or all of these fires may be lighted, as desired.

The arrangement shown in Fig. 7 is exactly similar to that already described, but is made complete as a fire-basket, which can be placed in the grate of ranges not already fitted with my invention. It will be noticed that portions-little blanks of the materialof the perforated diaphragm are raised up for the purpose of holding the fuel off the diaphragm itself. These are of course applicable in all cases, or in the case of round holesa number of craters might be formed by making a small hole and then bulging it or molding or casting the craters, as the case might be.

It will be readily understood that my invention is easily applied to an ordinary fireplace, such as shown in Fig. 8, by replacing the bars by a front perforated plate F, which is broken away in the illustration to show the perforated diaphragm which is placed to slope toward the front of the grate and so hold the fire up.

What I claim, then, is-

1. In a fire-box, the combination of the perforated diaphragms dividing the same into two firespaces, an ash deflector pivotally supported under the upper diaphragm for directing the ashes from the upper fire-space to the rear of the lower one, a perforated wall dividing the upper fire-space, .and a perforated front plate, substantially as described.

2. In a fire-box perforated diaphragms dividing the same into two fire-spaces, and an ash-deflector pivotally supported under the upper diaphragm for directing the ashes from the upper fire-space into the rear of the lower one, substantially as described.

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

JOSEPH J OI-IN OARTVVRIGHT.

\Vitnesses:

HENRY B. LAKE, HAROLD J. O. FoRREsTER.

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