US147500A - Improvement in cooking-stoves - Google Patents

Description

Z. HUNT.

Docking-Stoves.

Patented Feb. 17.1%874.

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y reaching vertically from the inclines to the EEICE.

PATENT ZEBULON HUNT, OF HUDSON, NEV YORK.

IMPROVEMENT IN COOKING-STOVES.

Specification forming part of Letters Patent No. 147,500, dated February 17, 1874; application tiled December 20, 1873.

To all whom it may concern:

Be it known that I, ZEBULON HUNT, of the city of Hudson, in the State of New York, have invented an Improvement in the Bottom Flue of a Cooking-Stove, of which the following is a specification:

The object of my invention is to more perfectly equalize and distribute the Vheat on the bottom of the oven of a cooking-stove, by causing the hot-air, &c., to circulate along the outer edges or sides of the bottom iiue, and eddies of heat to distribute themselves all over the middle and other portions of the bottom not in the track of the unobstructed circular current.

This I effect by elevating the middle of the bottom of the stove into a longitudinal doubleinclined or roof-formed ridge, (see Fig. 2,) of such height as, with a ridge-piece, known as a due-strip, of about an inch in width, to form a close partition. The two ends of this elevation are inclined like the sides. The front end et the tlue, or that nearest the ash-pit, is open and unobstructed, so that the hot air may pass freely around from 011e side to the other, and the back or roar end is divided by the back partition d extending to the bottom of the iiue and up this inclined end, as shown in Fig. l, until it meets the before-mentioned ridge-piece, so as to entirely separate the ascending and descending currents of hot air, &c., as shown by the darts in the same figure. And, further, by erecting on the two sides of this double-inclined partition I perpendicular wings or deflectors o c c c, three of which may be seen in the perspective view, Fig. l, standing a-t angles with the middle line or ridge piece of about forty-live degrees in front, and

bottom oi' the oven. As said above,

Figure 1 is a perspective view looking into the rear end of the stove, the lower port-ion of the back plate removed for that purpose, cxhibiting the interior construction. Fig. 2 is a plan view of the bottom ofy the stove, showing the double incline or roof-formed elevation I, and the location and angle of the wings or delectors by the wing-ribs c c c c and stops represented thereon; and Fig. 3 is a plan view of the under or iiuc side of the bottom plate of the oven.

The darts on Figs. I and 2 of the aecompaA nying drawings indicate the course of the current of hot-air, Src.; the curved darts the ed-V dies caused by the wings or deectors c c c c.

I employ two pairs of these wings, one pair on each side of the double incline I, but do not wish to confine myself to any definite number, intending to use more or less of them, as I find most advantageous.

This arrangement produces what I call a circular-draft cooking-stove. It diiiers from the ordinary so-called two-lued cooking-stove, not only in construction, but in its operation and results. Ordinarily, the bottom partition is a single vertical plate without wings, and when the hot air comes down the back iiue it hugs this middle partition on both sides and leaves the outer sides of the bottom iiue only partially heated, while the middle of the oven bottom next to the partition is heated to excess. In my improvement this is obviated, and the heat is equalized and evenly distributed on theventire bottom of the oven. The wings or deiiectors c c, &c., throw the hot air, dro., current out to the outer sides of the flue, (see Fig. 2,) while sufficient separates from it and revolves in eddies around these wings, and up to the middle andother parts oi' the bottom not in the circular current. The dust and ashes which fall upon the sides of this double incline slide down into the main tlue, and are thence easily drawn out through theiiuc-stopsP Pinto the ash-pits in front. The upright partit-ion d divides the back-flue into two parts, one for the descend-in g and thel other for the ascending hot air, &c., and meets the bottom rid ge-piece, and runs thence down the inclined rear end ofthe ridgepartition I to the bottom plate, so as ettectually to separate the two currents. The effect oi' the wings c c, &c., is to check and divert a portion of the current of hot air, &c., and prevent it passing oft' so rapidly into the smoke-pipe, while it does not injure the draft of the stove, the main passage being unobstructed and the main circular curA rent unimpeded. The outer and wider ends of these wings c c, 85e., sta-nd forward of the in` ner and narrower ends, forming an angle with the middle line or iiue-strip of about forty-five degrees, and extend, vertically from the ind clines up to the bottom of the oven, These wings or deiiectols c c, 85o., may be used in the bottom ue of a cooking-stove, in connection With a single upright central partition, instead ofthe double inclined, and produce in a. degree the same or similar results. This roof-formed elevation I is usually formed and cast in the bottom plate, or it may be built upon it.

I claim- The double-inc1ined elevation I7 provided With the Wings or deectors c o c o,in combination With the bottom-ue of a cooking-stove, substantially as and for the purposes herein described.

ZEBULON HUNT.

Witnesses:

EDWD. MAGOUN, FREDERICK F. FOLGER.

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