US69536A - Improvement in cooking-stoves - Google Patents

Description

` C. .H-.l BUCK.

l Stove *Doon Patented Oct. 8. 1867.

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@uiten tetra atmt @fitta CHARLES H. BUCK, OF ST. LOUIS, MISSOURI.

I Letters Patent No. 69,536, dated October 8, 1867.

IMPROVEMENT IN COOKING-STOVES.

TO .ALL WHOM IT MAY CONCERN:

Beit known that I, CHARLES H. BUCK, of St. Louis, in the county of St. Louis, and State of Missouri, have invented an Improvement in 'Cooking-Stoves; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had tc the accompanying drawings, making part of this specili- 'cation, in which- Figure is a vertical section taken longitudinally through the centre of my improved stove.

Figure2 is a bottom view of the chamber'ed bridge-plate.

Figure'is a sectional view of one of the oven-deors. Y

Similar letters of reference indicate corresponding parts in the severaliigures.

This invention relates to cer-tain improvements on cooking-stoves which are constructed with a {ire-chamber arranged over the fron-t part of the oven, with provision for conducting the heated products of combustion around the oven, and distributing the heat uniformly over the same.

The nature of my invention consists in having avdouble-wall fire-back between the {ire-chamber and oven,l

between the walls of which air is admitted through the sides of the stove, aud conducted up into a chambered bridge-plate, where the air is discharged through small apertures into the exit throat of the lire-chamber, and

caused to mixwith the rising gases, and eiiects the combustion thereof, as will behereinafter described. It

lalso consists in a novel mode of applying glass to the stove-doors, for the vpurpose ofv exposing to view articles which areput into the oven of the stove, without having to open the doors for this purpose, as will be herein after described.

. To. enable others skilled in the art to understand my invention I will describe itsconstruction and operation. In the accompanying drawings, A represents the oven of the stove, which is surrounded on four sides with double walls, forming ue-chambers for the passage of the products of combustion over, behind, and beneath this oven, when the damper a is closed, as shown in iig. 1. When this damper a is open the products of combastion from the lire-chamber pass directly from the fire-chamber B over the top of the oven, and escape from tho steve through theexit b. `The manner of conducting the products of combustion beneath the oven is by the employment of partitions, so as to form two side passages leading from the space above the oven downward and forward on each Side of a central liuc, which latter is closed by the damper a applied at the upper end of said central space.` This form of stove, and the arrangement of dues above described, are well known, andV need not be more particularly described in this specification. The "tire-chamber B is arranged over the front part ofthe oven A, and it is provided with a double-wall ire-backconslisting of a tire wall, c, and an oven wall, d, extending out to th side plates of the stove, and enclosing an air-heating-and circulating space, e, into which air is allowed to enterfreely through the openings ff through the side plates ofthe stove. The top of this chamber is closed, except at one point, which is in the middle of the width of the stove, and which forms a communica-4 tion for the upward passage of airfrom said chamber into a chamber, g, which is constructed by the application of a thickly perforated plate, D, upon the bottom of the bridge-plate D, shown in figs. 1 and 2. The chamber g extends laterally outward from the central inlet aperture, and'occupies a space nearly equal to the width of the stove, so as to freely distribute air through its perforated bottom plate and into the exit-throat of the tirechamber, and thereby produce a more perfect combustion of the gases rising from said chamber, by supplying them with large quantities of oxygen. The air is drawn into the chamber e, between the walls c d, by the common draught of the stove,4 when it is exposed to the highly heated surface of the front plate c, from which it will abstract considerable heat. This heated air the'n rises through the centrai opening of the chamber e and enters chamber g, from which it is distributed into the exit-throat of the fire-chamber in numerous small lstreams or jets, as above stated. By thus admitting fresh air into the chamber e I not only heat this air beforeit is conducted into vthe {ire-chamber, but I` reduce thetemperatur of the fire-exposed plate c to such a degree that this plate will not readily -burn out. The stove-doors G, which are applied for closing the oven, nre constructed with large holes through their `centres, 'as shown in figs. 1 and 3, adapted for receivingglass plates J, and having these plates secured to the doors so asto form 'windows for admitting light int'o the oven A. The glass plates J are made of a concavo-convex form,v as shown in iig. 3, and they are secured in place so that they will -not be liable to be broken by the 'expansion and contraction of the metal due to the extremes of heat and cold to 'which both the glass and the metal are exposed. This is eected by bevelling the edge a of the hole which is through 'the door G, so as to receive the edge of plate J, and employing o ring. l1, which is adopted to cover that portion of the plate J which touches said door. The ring z is secured in place by means of screws, which :1re intended merely as holding-screws for the ring, and not for clamping the plate J. The convex plate serves two important purposes: it allows a person to see objects within the oven without opening the doors thereof', ond it will expose such objects to view in s. better manner than o. flut piste would.

I am aware that flat plete window-glass has been employed in the doors of cooking-stoves and other varieties ol stoves, :ind I do not desire to claim broadly the application of glass to stove-doors. Flat glass plates are liable to be broken by pans and other objects in the oven striking them when the stove-door or doors :1re suddenl)T shut. The concave-convex gloss windows are not liable to be broken from such cause.

Hoving described my invention, what I claim ns new, and desire to secure by Letters Patent, is-n Providing the Adoors of stoves with concovo-convex gloss windows, secured within flaring openings through the stove-doors by means ot' rings 7L, substantially as described.

CHA S. H. BUCK.

Witnesses:

JOHN B. GERARD, H. J. Bernisse-mr.

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