US418851A - Cooking-stove - Google Patents

Description

` (NoModel.)`

' J. A. PRICE.

COOKING sToVB. No. 418,851'. Patented Jan. 7,1890.

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i State of Pennsylvania, have invented certain UNITED STATES PATENT y(DEEICE.

JoI-IN A. PRICE, or scRANToN, PENNSYLVANIA.

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SPECIFICATION forming part of Letters Patent No. 418,851, dated January 7, 1890.

To all whom, it may concern.- Be it known that l, JOHN A. PRICE, of Scranton, in the county of Lackawanna and new and useful Improvements in Cooking- Stoves; and I do hereby declare the following tobe a full, clear, and exact description of b the same, reference being had to the accompanyingv drawings, forming a part Yof this specification, and to the letters of reference marked thereon.

This invention has for its object to provide an improved ventilated-oven cooking-stove in Awhich the circulating air will materially assist in the cookingoperation, and at the same time make the stove an economical one in the consumption of fuel.

To` these ends the invention consists in certain novel details of construction and combinations and arrangements of parts to be hereinafter described, and pointed out particularly in the claims at the end of this specification. l

In the accompanying drawings, Figure lis a side elevation, Ipartly iii-section, of a stove constructed in accordance with my invention. Fig. 2 is a sectional view through the oven, looking toward the front. a Fig. 3 is a sectional view taken down through the fire-pot and ashpit, looking toward the rear.V Fig. 4 is a section of the hollow. cross-piece, showing the discharge-openings, andf topof the ventilating-flue. Fig. 5.is a sectionthrough the airduct.

, larly well adapted for application to a stove of the type illustrated in the drawings-t'. e.,the

ordinary square cookstove-in which the firepot A is located forward of the oven B, and the iiuesso arranged as that the products of combustion and smoke pass over the oven and, if desired, circulate around the same before passing off up the chimney.

Between the {ire-pot and the oven l arrange the Ventilating-duct, consisting, preferably, of the lower section opening below the stove,

` and formed by bolting or otherwise securing' the hollow section D to the front of the ovenplate, which latter, when constructed especially for the purpose, may be recessed, as

Serial No. 302,767. (No model.)

Ashown in Fig. 5,*to form a substantially-circular opening, and the upper section consisting of the chamber formed by the section E, with the thin wall e next the lire pot, and the opening e2 next the oven, and the exit for the air from the chamber to the cross-piece at the top. The section E, forming the chamber, as

just pointed out, is interposed between the.

sections of lire-brick at the rear end of the fire-pot, with the thin wall e directly exposed to the action of the lire .in the fire-pot, as shown, said wall being thus easily raised to incandescence by reason of the small thickness of metal, but is prevented from warping by the strong side walls E and relatively i small size of the section, as well as the constant circulation of air against the rear surface.

In order `that the chamber may serve to heat the air more effectually, the end of the lower section is brought up to about the middle of the chamber, whereby the cold or only slightly heated air discharged from said duct will tend to sink to the bottom of the chamber. and become expanded and heated before being allowed to enter into the oven through the opening e2, located in the side of the lchamber, as before mentioned.

Above the chamber E and communicating therewith is a short duct F, passing through the smoke-flue above. the oven and opening into the cross-pieceG at the top. `This crosspiece is hollow, and is provided with dischargeopenings g at each end opening above the stove.

The opening e2 in the chamber is directly opposite the thin wall e, next the fire-pot, whereby the full beneficial effect of the direct radiation from l the thin wall is derived for cooking purposes. At the same time the circulation through the oven by the entrancev air sweeping through the duct without causing such a draft and rapid passage of air through the oven itself as to retard the cooking operation-a common fault in ventilated ovens as heretofore constructed, and in which the entire body of air, whether heated or not,

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was compelled to pass through the oven from one side to the other.

In some instances' it is found desirable to expose more of the duct to the oven, and for this purpose I locate an opening II in thc lower sect-ion, which, with opening c2, permits ofthe free natural circulation into and out ot the oven at top and bottom. The circulation of the air may be, and preferably is, regulated by foraminous dampers I, K(such as wire-gauze dampers,) which may be moved over one or both of the openings between the oven and duct or chamber, as shown, and, it desired, such dampers may be provided with solid sections t' for entirely cutting oif the circulation, in which instance the air passing through the duct will serve to prevent the burning out of the thin walls of the duct or the cross-piece.

As before mentioned, the front wall of the heating-chamber is thin and adapted to be brought toa state of incandescence by the lire and light up the oven through the opening in the opposite side of the chamber. Now, for the purpose of enabling the cont-ents of the oven to be readily inspected, I locate a glass panel in the side of the oven, preferably inthe door, as shown. rl`he short duct F, located directly in the path of the heated products passing from the tire-pot, is heated to a high degree and adds an impulse to the current of air passing through the duct, keeping the column of air constantly in motion and serving to start the circulation as soon as the fire is lighted.

Other forms of ducts may be employed, if

i desired, and I do not wish to be limited to the specific form described, although the same has many advantages in ease of application and slight cost, which render it preferable.

It will thus be seen that I have produced a stove having an oven well ventilated wit-hout forcing any currents of air through the same, and in which the full effect of the direct radiation of a thin iron plate next the ire is obtained.

By the employment of a duct passing from oneside of the stove straight through to the other and Ventilating from this duct all danger of smoke entering' the chamber is avoided. At the same time the heat of the smoke and other gases is utilized to promote the circulation by heating the air within the duct to a very high degree as it passes out at the top of the stove.

In an application tiled by me on the 10th day of October, 1889, Serial No. 326,551, I have described and claimed the herein-disclosed damper, in combination with a Ventilatingliue, the alternate arrangement of tire-brick and iron sections with air-iiues at the back of the fire-pot, and a flue open to the external air leading' into the oven, and a hollow crosspiece,also connecting with the oven, and therefore I do not wish to be understood as abandoning said subject-matter by reason ot' the failure to claim the same herein.

Having thus described my invention, what I claim as new is- 1. In a cooking-stove, the combination, with the fire-pot and oven, of an air-duct for the inlet of the external air, having a portion of its side wall exposed to the direct action of the tire in the tire-pot and having an opening leading into the oven, and a hollow bridgepiece open to the external air and in communication with said air-duct, substantially as described.

2. In a cooking-stove, the combin ation, with the fire-pot and oven, of an air-duct for the inlet of external air, having a portion of its side wall exposed to the direct action of the lire in the tire-pot and having an opening opposite said exposed portion leading into the oven, and a hollow bridge-piece open to t-he external air and in communication with said air-duct, substantially as described.

3. In a cooking-stove, the combination, with the tire-pot and oven, of an air-duct for the inlet of external air, having a portion of its -side wall exposed to the direct actionof' the fire in the fire-pot,`with an opening leading into the oven and a discharge-opening above the top of the stove, substantially as described.

et. In a cooking-stove, the combination, with the tire-pot and oven, of an air-duct for the inlet of external air, having a portion of its side wall exposed to the direct action of the tire in jthe fire-pot and having an opening leading into the oven, a slide or damper for covering the same, and a hollow bridge-piece open to the external air and in communication with y said air-duct, substantially as described.

l Y 5. In a cooking-stove, the combination, with the firepot and oven, of an air-duct for the ini let of external air, havinga portion of its side wall exposed to the direct action of the lire in fthe tire-pot and having an opening leading into the oven, a foraminous slide or damper for covering the same, and a hollow bridgepiece open to the external airand in communication with said air-duct, substantially as described.

4 6. In a cooking-stove, the combination, with the lire-pot and oven, of an ai1ductfortl1e inlet of external air, having a portion of its side ,wall exposed tothe direct action of the ire in ythe fire-pot and having an opening leading into the oven a slide or damper covering vsaid opening having a foraminous and a solid portion, and a discharge-opening, substantially as described.

7. In a cooking-stove, lthe combination, with the tire-pot and oven, of a heating-chamber forming a portion of the walls of the tire-pot and having an opening into the oven and communicating with the external air, and an air-inlet duct discharging at ornear the middle of said chamber, substantially as described.

8. In a cooking-stove, thc combination, with the tire-pot and oven, of a heating-chamber forming a portion ot' the walls of the lire-pot and having an opening into the oven, a damper for covering said opening, a communication between said chamber and the Aexternal air,

and an air-inlet duct discharging at or near IOO IIO

the middle of said chamber, substantially as described.

9. In a cooking-stove, the combination, with the fire-pot and oven, of a heating-chamber forming a portion of the Walls ofA the tire-pot and having an opening into the oven, a damper for covering said opening, having the solid and forarninous parts, a Communication between said chamber and the external air, and

an air-inlet duet'diseharging at or near the middle of said chamber, substantially as described. p

lO. The combination, with the oven having a transparent panel, of the fire-pot having an incandescing portion exposed to the interior of the oven, substantially as described.

Vll. The combination, with the fire-pot and oven, of an air-heating chamber having a portion of its walls exposed to the lire in the JOHN A PRICE.

Vitnesses:

MELVILLE CHURCH, THOMAS DURANT.

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