USRE3659E - Edmund j - Google Patents

Description

E. 1. CRIDGE. Cking S'tuve.

No. 3,659. Reissued oct. 5. 1369.

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@sind @imita EDMU'ND J. CRIDGE-,YOF TROY, NEW YQRK.

Lette/rs Patent No. 35,141, (lated May 6, 1862; reissnc'No. 3,659, cla-,ted October 5, 1869.

COOKING-STOVE. f

The Schedule referred to in theseLetters Patent and making part `of the same.l

To all whom Iit may concern:

Be it lknown that I, EDMUND J. Carnon, of the city ot' Troy, in the county of Rensselaer, and State of New York, have invented a new and improved Cooking-Stove; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the aecompanyin g drawings, making part of this specifica-tion, in which- Figure 1 is an isoxnetrical representation of one of my improved stoves, with portions of the upper part and one side broken away.

Figure 2 is a vertical section taken centrally through the stove from front to rear.

Figure 3 is a section taken through the stove in a horizontal planeindicated by line z s in tig. 2.

Figure 4 is a section taken vertically through the stove as indicated hy line y 1 1/ in tig. 3.

Figure 5 is asection taken through the stove in a vertical plane indicated by line :v a; in figs. 2 and 3.

Similar 'letters ot' reference indicate corresponding .parts inthe several figures.

oven, and the tire-chamber ot' a cooking-stove withwarm air, for obtaining an 'equable heat in the oven, Ventilating the oven, and also for effecting more' perlect combustion of 'the gaseous products rising from the tire-chamber, as will be hereinafter explained.

"lo enable others skilled in the art to understand my invention, I will describe its construction and operation. V

In the accompanying drawngs-- A represents the fire-box, with a grate, b, at its bottoni, arranged over an air-sul'iplying ash-chamber, C.

D is the oven, which is arranged directlyback of the said fire-box A and ash-chamber C.

E E' E" are smoke or gas-fines, which are extended from the top of the lire-box A, iirst over the top of the oven I), and thence along the back and bottoni plates fg of the oven, to the exit-passage h.

I J, Iig. 2, is an air-space, which is extended continuously along the front plate It and the top. plate l of the oven, that is, between those plates and the back plate or back plates on in.' of the tire-box A and ash-chamber C and bottoni plate n of the upper lireflue E.

The continuous air-space I J has communication with the oven I) through an opening or opei'iings, o, figs. 2 and 3, at or near the rear upper corner of the oven, and also by an 'aperture or apertures, p, figs. 2 and 5, at or near the lower front corner of the oven.

The continuous air-space I J, also has. communica.- tion with the interior of the lire-chamber A by apertures q, igs. 1, 2, 3, and 4,' leading'from the upper part `of' the frontportion of thesaid air-space into the rear vpart of, and above the place-for the fuel in the said tire-chamber. y

The hot-air space I J also has communication with the o en airb f suitable a iertures or o ieninlfs as re iresented by letters fr i', iigs. 1 and 4, terminating in or leading into the ends pt' upright tine-space I, marked ss, in iigs. 1, 2, and

-I wish it distinctly iuiderstood, that I do not restrict myself to the apertures placed in the exact position as represented byletters lr rr, igs. l, 3, and 4, as in some cases it may be necessary to have the openiugsfor the admission of cold air directly in the ends ot' flue-space I, or in the upper part ot ilue t t and I generally prefer to have those air-passages extend along the sides t t and li'ont a of lire-chamber A, and

in communication with the V interior of the latter by suit-- able openings er passages, as representL-id by letters er, thereby promoting the combilstion of` the fuel and gases in the fire-chamber, substantially as indicated in figs. 1, 2, 3, and 4.

\V is a damper, which eau be set.' as shown in full lines in tig. 2, so as to cause the products of combus tion to pass through the tlues E' and E", along the back and bottom ot' the oven, in moving iom the top tire-flue E to the exit-opening Jt, and this damper lV can also be set, as indicated in dott-edlines in tig. 2, so as to allow the products tuy pass directly to the exitaperture h from the tlue Il, wit-hout passing through the tlues E E, which latter will then be as dead-air sp aces communicating with the iue E.

I am aware that itis not new to make a cookingstove with a tire-chamber, A, grate b, ash-box (l, oven 1), tire-tlues E l' l, and damper W, all arranged as specified and shown by the annexed drawings, and that it is not new to have such a stove made with an air-space located between the front of the oven and the back of the ash-box and irechamber, and communicating by apertures at its ends with the open air, and by an opening or openings at its bottom with the lower front corner ofthe interior of `the oven;

and also made with another air-space arranged between the top of the oven and the lire-fine over the oven, and in communica-tion, by apertures at its rear end, with the back upper corner ot' the interior of the oven, and by apertures at its front end with theinterior of the fire-chamber above the fuel therein,`all as shown in G. G Volfes Letters .Patent numberel 30,514, A. I). 1860.

But there is an essential dili'erence bctween'my improved stone, shown by the annexed drawings, andthe stove shown in the said patent to lVolt'e. For, in the stove of `Wolfe, the air-spaeeon the l'ront side of the oven is entirely separated at its upper end by a partit-ion from the iront end of the air-space on iop oi' the oven, so that, however variably the 'that latter air-space into the fire-chamber above the' and gases are made to pass through all the dues E E front, top, back, and bottom plates of the oren may be heated with respect to each other by the firechamber and smoke-filles, the air in the space in front of the oven can only pass into the lower front part of the oven, and from the back upper corner of the oven into the hot-air space on topof the oven, andY from fuel, that is, in the opposite direction to that shown by arrows win the oven D in fig. 2 of the annexed drawin s.

`Iut in my improved stove it is essential that the horizontal airspace J on top of the oven D should be, at its front end, in directeommunication with or form a continuation of the upright air-space I in front of the oven, so that there can be a free circulation of highly heated air through the continuous air-space I J and the oven D, either in the direction indicated by the arrows w in the oven in figs. 1 and 2, or in theopposite direction, according as such changein the direction of the current of heated air through the oven and air-space I J may be induced and become necessary to completely equalize the heat in all parts 1 of the oven, when the front, back, and bottom plates of the oven are variably heated in respect to each other land to the top plate of the oven, 'as the smoke E or only through the top Hue E, and as more or less heat is conducted to and radiated against the plates m on in front of the oven from the back and bottom of'I the lire-box. l I am also aware it is not new to make a cookingstove with a hot-air space extended continuously over the top and more orless along the front side of the oven and next to the tire-boxaud ash-chamber, and with the said hot-airspace either in'communication with the open air, the oven and the smoke-dues to merely ventilate and heat the oven, or in communication with the interior of the fire-chamber above the fuel therein and with'anoven having communication with the open air to promote the combustion of the gases evolved from thei'uel, andto ventilate, and in ameasnre, equalize the heat within the oven by a current of air always passing in one andthe same direction through the oven andthe said hot-air space, examples being shown in numbers 28,482, 28,081, 24,79l,'20,430, and 10,716, of

United States Letters Patent, and I do not claim any such construction.

But I do believe that I first invented a cookingstove combining the air-spaces I J, t t, and u, the rechamber A, oven D, draught-chamber C, lire-fines E E E, damper W, and apertures or air-passages o, p, q and r, arranged substantially as shown by the accompanying drawings.

rIhe partitions or deiiecting plates d d, figs. l and 5, are arranged in the upright portion I of the. continnous air-space I J, and extended from the end plates c,- to points below where the fresh air enters the ends s s of that air-space, inward and upward to, or toward the horizontal air-space J over the oven, in order to insure the passage of the comparatively cool air which enters the ends or' thel space I, upward, toward, or into the horizontal air-space J, and thereby cause the newly admitted air to become more highly heated before it can circulate through the hot-air iiues I J and ove D, in either direction.

Having described iny invention,

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination of the continuous air-space IJ,

the oven D, fire-chamber A, draught-chamber C, and fire-fines E E' E, the latter provided with a damper XV, substantially as set forth. Y

Z. The air-fine or fines tt and u, having communication with the open air, tire-chamber A, and air-space or tine I J, substantially as set forth.

3. The arrangement of' the deectingplates d el in the upright `portion of the continuons air-space I J, in combinationwith the oven D, fire-chamber A, and rire-fines E E' E, and with the air passages c' o p and q, or their equivalents, substantially as set forth.

4. The arrangement of the apertures or air-passagesl r o pand q, in combination with the continuous air-space I J, oven D, tire-chamber A, draught-chamber G, and fire-fines E E E", provided with a valve or dam-per W, substantially as set forth. f

EDMUN D J. GRIDGE;

Vitnesses:

JOHN MCKEEVER, GEORGE W. NALoNs.'

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