US429772A - Oven and heater - Google Patents

Description

(No Model.)

M. POWELL. OVEN AND HEATER.

Patented June 10, 1890.

UNITED STATES PATENT OFFICE.

MADISON POWVELL, OF HEBRON, NEBRASKA.

OVEN AND HEATER.

SPECIFICATION forming part of Letters Patent N0. 429,772, dated June 10, 1890.

Application filed February 19, 1890. Serial No. 341,003. (No model.)

To all whom it may concern.-

Be it known that I, MADIsoN POWELL, a citizen of the United States, residing at Hebron, in the county of Thayer and State of Nebraska, have invented a new and useful Oven and Heater, of which the following is a specification.

This invention relates to ovens and heaters in which are combined a dish-heater, a waterreservoir, a cooking-oven, and a heating-drum.

The object of the present invention is to provide a device which may be cheaply constructed and which is adapted to serve in any or all of these several capacities. This object I accomplish by my improved oven and heating-drum, which consists, essentially, of a central oven-chamber surrounded by a hot-air flue, a partition below it dividing the supplypipe in two parts, independent dampers in each part, a reservoir surrounding the exterior of the hot-air fiues on several sides of the device, and a damper in the outlet-opening, as well as of adj unctive and specific details of construction incident thereto, which assist in carrying out the said object, and certain auxiliaries which tend to enhance the value of the completed device, all as hereinafter more fully described, and illustrated in the accompanying drawings, in Wl1lOl1- Figure l is a front elevation. Fig. 2 is a central vertical transverse section. Fig. 3 is a horizontal section on the line 3 3 of Fig. 2. Heretofore ovens have been constructed of this general arrangement, wherein a single annular oven-chamber was heated by a central vertical hot-air flue, and a damper was arranged in a stationary plate extending across below the end of said flue, so that the damper could be opened to pass the heat directly up the flue or could be closed to pass it around the sides of the plate and beneath the bottom of the two portions of the ovenchamber before it went up the flue. An 0bjection existed, however, with this construction, in that no provision was made for heating the two portions of the oven-chamber alternately or to diiferent degrees of heat simultaneously, nor was any provision made for converting the oven in that device into a heating-drum. The present invention is designed to overcome these objections, and in addition thereto I have supplement-ed it by several auxiliaries, as hereinafter set forth in detail.

Referring to the accompanying drawings, the letter A designates a supply pipe or tube at the bottom of the device, and the letter Z an exit pipe or tube at the top thereof. These tubes are of a size preferably to be fitted over the ordinary stove-pipe, whereby the products of combustion passing upwardly from a fire or hot air passing upwardly from a latrobe or furnace may be passed through my improved oven and heating-drum.

Between the inlet and outlet pipes the body of the device is preferably made rectangular, as shown at R, to which the inlet-pipe is inclined upwardly, as shown at r. WVithin this body a rectangular oven F is supported in any suitable manner, the means of said support being not necessary of illustration or de-' scription here, as they will be obvious to any persons skilled in the art. The oven F has internal cleats K along its sides and bottom and top, as shown in Fig. 2, whereby partitions may be inserted from the front of the oven to divide the latter into chambers or portions, as will be understood.

The front of the oven is preferably closed by one or more doors hinged at one side and latched at the other in any desired way. Above and below the oven are provided vertical partitions P, extending forward and back within the casingR and upwardly and downwardly a short distance into the inner end of the inlet and outlet pipes A and Z,and these partitions divide the entire part of the device outside of the oven into two separate compartments-one at either lateral side of the oven-top. Across the tapering portion 4" of the casingv R and just below the oven F, I arrange an imperforate partition J, and at a suitable point in this partition, at either side of the vertical partition P, is disposed a sliding valve or damper D, operated by a handle (1, which extends through the front of the tapered portion of the casing to within easy reach of the operator. Above the upper end of the upper vertical partition P the outlet-pipe Z is provided with an ordinary damper H.

The products of combustion from a stove or other source of heat or the hot air from a latrobe or furnace enters the inlet-pipe A, is

divided by the partition P, and passes upwardly into the inclined portion 1' of the easing. One or both of the dampers D are then opened to the desired degree, and the hot air is permitted to pass into the flue U, which surrounds the oven F, after which it passes along above the top of the oven, strikes the opposite sides of the upper vertical partition P, continues upwardly through the outletpipe Z, in which the divided portions of the hot air are reunited, and passes through the open damper H into the chimney. If it is desired to heat one end of the ovens to a higher degree than the other, the damper 1) below that end is opened to a greater extent and the otherdamper correspondingly closed, whereby more of the heat will be caused to pass around that side of the oven, as is obvious. A vertical partition may be inserted in the oven below the upper and lower pairs of cleats K when a considerable difference in the temperatures of the two ends of the oven is desired, and this partition effectually divides the oven into two ovens, one of which may be heated to a considerable extent more than the other, or one of which may beheated and the other kept only warn1. 8., by the radiation of the heat through the partition and from the other portions of the casing, no heat whatever being allowed to pass around the flue U at that end of the oven. \Vhen a horizontal partition is used, the oven is divided into practically two chambers--an 11pper and a lower onethe latter of which is of course much more highly heated than the former, because the u pwardly-passin g divided sections of the heating column of air strike directly against the lower side of the lower portion of the divided oven and against its two ends as well, whereas after it has passed by such ends and is to a considerable extent cooled it passes by the ends and along the top of the upper oven-section, and naturally has less heating-power.

\Vhen it is desired to use this device as a heating-drum, both dampers D, are opened, and the oven-doors are also preferably open; but the outlet-damperll is almost closed. By this arrangement the heat enters at the inletpipe A and passes into the flue U, entirely around the oven, and into the outlet-pipe Z; but its exit from the latter is restricted, and hence the air within the oven is highly heated, as well as the air that surrounds the exterior casing R. The device therefore can be made to serve as a heating-drum by merely changing the positions of the dampers.

The letter B designates a water-tank, which preferably surrounds the back and one end l of the casing R, and the water within this tank is heatedby the upward passage of the products of combustion or hot air within the lines. The reservoir maybe provided with a faucet b, if desired, for drawing off the water.

The letter C designates a folding shelf, preferably arranged at the other end of the device and connected by a knuckle-hinge c with the vertical side of the casing, or it may be supported, when in its distended position, by any suitable bracket. This shelf folds upwardly against the end of the casing when it is not desired to be used. Upon this shelf dishes may be placed for the purpose of warming them, or small dishes containing food which it may he desired to keep at a proper temperature may be placed thereon; but nothing of much weight should be placed on this shelf.

It will be understood that the above-described ad junctive and specific details of construction may be modified to a considerable extent and the auxiliaries omitted entirely, if desired, without departing from the spirit of this invention; but their employment is preferable, in order to render the device finished in every detail and a perfect piece of mechanism when put upon the market.

Having thus described my invention, what I claim is- 1. The casing R, provided with the outletopening Z and the inlet-opening A, having an upwardly-flaring upper end 0', connecting with the casing R, in combination with an oven F, smaller in size than said casing, vertical partitions P, extending upwardly and downwardly from said oven into the outlet and inlet openings, and independent dampers in the twof'portions of the inle -opening, substantially as described.

2. The casing R, provided with the outletopening Z, having a damper H, the inlet-opening A, having an upwardly-flaring upper end 7', connecting with the casing R, and a horizontal partition J within said flaring portion, having independent slide-dampers D D, in combination with an oven F, smaller in size than said casing, and a downwardly-extending partition P, reaching from said oven between said dampers and into the inlet-pipe, substantially as and for the purpose described.

In testimony that I claim the foregoing as my own I have hereto afiixed my signaturein presence of two witnesses.

MADISON POWELL.

'Witnesses:

F. B. UDALL, S. H. WEBB.

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