US67670A - Improvement in cooking-stoves - Google Patents

Description

0. PARIS. Cooking Stove.

Patented Aug 13, 1867.}

UNITED STATES PATENT OFFICE.

DANIEL E. PARIS, OF TROY, NEW YORK.

IMPROVEMENT IN COOl (lNG-STOVES.

Specification forming part of Letters Patent No. 67,670, dated August 13, 1867.

DIVISION A.

To all whom it may concern:

Be it known that I, DANIEL E. PARIS, of Troy, in the county of Rensselaer and State of New York, have invented a new and useful Improvement in Cooking- Stoves; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings forming a part of this specification, in which Figure 1 is a top view of my improved stove, illustrating my improvement. Fig. 2 is a vertical longitudinal section of the same, taken through the line as a, Fig. 1. Fig. 3 is a top view of the rear part of the stove, illustrating a modification of my improvement. Fig. 4 is a vertical longitudinal section of the same, taken through the line y y, Fig. 3. Fig. 5 is a detail sectional view of the same, taken through the line 2 2, Fig. 1.

Similar letters of reference indicate like parts.

My invention has for its object to improve the construction of my improved stoves, patented June 10, 1862, and March 24, 1863, by James R. Hyde, and also June 22, 1858, by S. B. Spaulding, which latter patent was reissued February 26, 1867 and it consists, generally, in constructing a reservoir or watertank with an outwardly-projecting flange or rim cast solid around and upon its upper top edges in order to make them firm and strong, so that they will not warp out of place While being heated perfectly red hot, which is necessary in order to coat or cover the inside surface of said tank, which I always do, with an enamel or porcelain composed, mostly, of

glass, borax, and flint, and which requires an intense heat in order to melt and flow the same upon theinside surface of said tank. These ingredients are ground to a fine powder, then mixed together and sifted onto the inner surface of the reservoir while in a red-hot state. The vessel then is still further heated till the powder is melted and flows over the whole inner surface, which prevents corrosion, or a formation of oxide of iron.

Reservoirs or large cast-iron boilers of this class have heretofore been made like the ordinary kettle, with a thin top edge, which, if

heated, would warp out of shape. The tops of these large vessels being oblong, they are far more liable to warp out of shape than as though they were round; and, even if they were round, the thickness of metal does not compare with their size, for I make them fully as thin with this strong rim cast on the upper top edges as the ordinary stove kettle, which is a great saving in metal, time, and labor. The outer edge of this top rim is shown in drawings to conform and correspond to the top surface of the stove but I do not usually cast the rim or flange so wide as this, nor do I turn the edges so far downward. I am not particular about the shape, so that it projects outward far enough to give strength to the top edges of the reservoir, as I do not usually construct it for ornamental purposes, but for use, strength, and durability. I then hang the covers directly to the rear top edge of the reservoir. This mode of hanging reservoir-covers is new, not having been used heretofore, for the reason, probably, that reservoirs have not been made sufficiently true and even to enable the covers to swing perfectly. To have the covers swing straight and true, the reservoirs must be made alike every time, so as to fitthe covers, which are all cast alike and from the same patterns; but thiscannot be done unless the top edges of the reservoir are strengthened in some way, so that they will neither get out of place while being made nor while in use. r

This outward-projectingflange is simple, and might not ofitself be patentable, except combined with the covers, nor would it be greatly needed if it were not for thecovers, for if the vessel had no covers it would not matter so much if its top edges were a little uneven or out of true; but, when combined with a cover or covers, it is exceedingly necessary that the reservoirs always come alike, and all come true and perfect; especially should they all be made alike, for if not different covers would have to be made for every difi'erent reservoir.

The utility of this invention in other respects may be briefly stated. This mode of attaching the covers to the reservoir does away with the usual intervening or middle plate, to which the covers are attached, and which is of consider- -vision B of this application.

able expense, with no corresponding benefit,

as said plate is used merely to keep the top edges of the reservoir in their place and shape, and to furnish atrue and even surface to hang the covers to. These are the only'uses of the intervening plate, and in this invention I accomplish the same thing without the plate, thus saving all the expense'of the same. I

I attach the two front corners of the reservoir to the rear end of the top plate of the stove, as in my Hyde patent of March 24, 1863, but I use no intervening plate or plates. The principle is the same,buttheiimprovement is considerable, for I bolt the two front" projecting parts of the reservoir directly to the rear end of the top plate of the stove.

- The kind of stove to which L attach this reservoir is known as a diving-flue stove, and my claims are made in connection with this kind of stove. Itmayhave, as is usual,three fines, which are the best, or it may have two flues, which are very common, or itmay have what is known as a sheetflue. The variations would be slight in either case, and the principle the same in all.

In the stove shown here, A is the oven; B, the fire-box; G, the top flue D, the top plate of the stove; E, the ordinary damper of a three-flue stove. F is the central flue, while G is one of the two side fines of the stove. 'I is an open, crescent-shaped, rearward and upward projecting plate, on the top and outer edges of which the reservoir K rests in its place behind the rear flues of the stove. .L is

the return-flue chamber under the reservoir,

formed and inclosed by the plate I, in which the damper M- operates, as described in Dichamber formed between the back plate J and the reservoir K, while the small openings 0 O are to give vent and carry off the pent-up smoke as it arises from the chamber L on its way to the exit-pip"e.

The combination here of the Hyde and the Spaulding patents is complete, while both are improved-in the manner, described. The return-flue chamber L, first shown in the Spauld-, ing patent in connection with a diving-flue stove, is here-improved by forming it of one solid plate, I, instead of making it of two or more plates. The shape is also improved. Instead ber is rounded upward, taking or following N is a hot-air flue-plate M on their way to the exit-pipe. The reservoir being placed as in the Hyde patent, and attached to the top plate of the stove, does not reach down as far as in the Spaulding patent; therefore the return-flue chamber L is raised a little, or rather the oven of the stove A is made unusually high between joints, so that it necessitates the raising of the chamber L to meet the reservoir, or else the reservoir would have to be made deeper than necessary in order to go down to and rest upon the plate I. There is no invention claimed in raising said chamber or increasing the height of the oven, as any skilled mechanic would see at once that if he made his oven unusually high he must either raise the reservoir-seat or make his reservoir deeper than necessary; but the improvement in the shape of the reservoir-seat and its simplified construction are considered valuable; The hot-air chamber N, closely covered by the top of the reservoir or top of thestove, or both, so as to prevent the upward circulation of hotair, which was first shown in the Hyde patent of March 24,'1863,'is' here'improved by connecting it with the chamber L. The top plate D is formed with a downward-turned and finished molding'on its front and two sides, while its rear end has a flat, raw, orunfinished edge; and this top plate is made in the same sand-box or flask, and on the same follow-board, that the ordinary top 'ismad'e in or on, thus saving the expense, time, and labor of making large flasks and follow-boards for a long extended top, which would be necessary if it went out around'and over thetop ofthe reservoir, and such extended top is liable to break in shippingr a Having thus described my invention, what ,I desire to secure by Letters Patent is 1. The hot-air chamber between the back plate of the stove and the front side of the reservoir, in combination with the return-flue chamber under the reservoir, and the damper or flue-plate operating in said chamber.

'2. The open, crescent-shaped, rearward and upward projecting plate I, inclosing and forming the return-flue chamber under the reservoir, covered by and in combination'with the reservoir, which rests upon its upper and u I outer top edges. of a square box, the back part. of the charm p DANIEL E. PARIS. .Witnesses:

CHAS. E. POTTER, LOUIS. POTTER.

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