US92055A - Improvement in cooking-stoves - Google Patents

Description

UNITED STATES lPATENT OFFICE".

BENJAMIN F. JOHNSON, OF TROY,'NEW YORK.

IMPROVEMENT IN' COOKING-STOVES.

Specification forming part of Letters Patent No. 92,055, dated June 29, 1869.

To all whom it may concern:

Be it known that I, BENJAMIN F. JOHNSON, ofthe city of Troy, county of Rensselaer, and State of New York, have invented a new and useful Improvement in Cooking'Stoves having tanks for heating water attached;-and

The object and scope of my said invention y is to be found in so constructing theback and the iue or tlues of a cooking-stove, in connection with a water-tank, as to be able to pass the escaping products of combustion in such a manner as to heat the oven through theback ot' the same, or to sendsuch products` against the side ofthe water-tank to heat the water therein; or to so direct the saidproducts, heated air, Src., as to heat the oven and tank at the same time, thereby adapting the use of the stove and water-tank to any desirable operation, either for heating the oven or the water. The improvement, as represented in the accompanying drawings, is set out asv applied to a three-due stove, but it is neither my purpose nor intention to limit the application of my said invention to stoves of any particular number 'of flues, as the same may be applied to stoves of one or more iues.

I apply my improvement to cooking-stoves by means of the form and construction of the back of the stove, which may be composed of a single recessed plate or of several plates, forming recesses for the dues and rests for the water-tank.

.In Figure 1, a is the back plate or plates of the stove, as the case may be. a a are rests 'formed by the projections of the lower half of the back plate a, which assist the eyes hh and hooks h h of Fig. 2 in supporting the watertank A when attached to the stove, as shown in Fig. 3. b is a damper for regulating the passa ge of the products of combustion through the luesf, said damper being adjusted by the con necting-rod c1.

The recess, as shown in Fig= 1, is designed to make provision for the 'middle or center flue when a three-flue stove is used. In such case an additional plate, d, Fig. 4, is required to be used to form the back of the iiue up to the bottom of the tank or to the rests a a',

which additional plate d is shown in position in Fig. 6. This mode of constructing the lower part of the ue f2, Fig. 1, increases largely the capacity of said flue in the stove below the tank, which flue becomes or may become divided in the upper part thereof by means ot' the plate e, so attached as to form `a part of the back plate of the stove.

By substituting the plate e for the plate d, the back ot the stove is made complete without the use of the water-tank.

ln the construction. of cooking-stoves having water-tanks attached to the rear or back of the stove, provision should always be made to so control the escaping products of combustion, together with the heated air, Ste., on their way tothe chimney, as to use them altogether for heating the oven, or altogether for heating water in the tank, or for both purposes simultaneously. This I have accomplished by `my arrangement, construction, and combination, as herein set forth and by means of the dampers in the ue, as seen at b, Fig. 1, I can cause the entire draft to pass up on the oven side of the plate c, thereby causing more heat to come in contact with that part of the oven-back composed ot' the plate a in the back of the flue-recess than otherwise would 3 or by means of the same damper b I can cause the entire draft to pass up' in the tank side of the plate c, for the purpose of heating more rapidly the water in the tank, or by leaving the damper b partially open I can divide the draft, sending a part up on the oven side and a part up ou the tank side of said plates. This damper b is managed by means of the connecting-rod. c2, as

seen in Fig. 3.

The recessed'form of the back plate a a a,v

&c., presents two lateral'recesses for the side lues in the back of the oven, as they appear at f in Fig. 7. These lateral dues and the back of the oven are completed by means of plates like Fig. 8, f l, which are seen in position atflf in Fig. 3.

The upper part of the flue is constructed by means of the collar or semi-collar c, Fig. 5, and the concave in the tank. The shape of o is seen at Fig. 5, and is seen in position at Fig. 3 in connection with the tank A.

It will be perceived'by an examination of Fig. 6 that the back of the oven and front of the upright flues in the back ot' the stove may be cast in a single piece, and in the usual .manner, and the lateral and middle ilues may be in part constructed in the usual manner, except as herein stated. The extreme back plate ofthe stove may be cast in two parts, thus: The lower half of said back plate in Fig. 6, represented by the parts marked a. d a, may be cast together, forming a single plate, and the upper half ot' said back plate may be cast together, forming the plate a e a, as seeny in Fig. 6.

When the boiler, Fig. 2, or the tank, with its sem'rue recess f, is attached by means of its hooks h h', through the recesses h h, as seen in Fig. 6, and the semicollar e, Fig. 5, is in its place, the stove and tank are cour billed and ready for use. That partof the back ofthe stove represented by plate e, Fig. 6, divides the upper part of the vmiddle flue into two parts, each ot' which may be used separately or together, as circumstances may require. As already setforth, the appropriate use ofthe front or back halfot' this middle lue will be regulated by the damper b in Fig. 1.

It' stoves of but one back (shut) flue are used, the back plate oi' the stove may he cast in two parts, as suggested i-n Fig. 6, so that the lower half of the back plate may project outward two inches or more beyond the lower edge ofthe upward half', forming an opening two or more inches in width, nearly or quite across the hack of the stove, in which case the boiler or tank ilue f2, Fig. 2, will be formed by extending the same in breadth equal to the width of the opening in or between the said two back plates of' said stove. Thus two ilues will be formed, as in Fig'. 6, one between the back plate ofthe stove and the back plate of the oven, and the other between the back plate ofthe stove and the sideof the Watertank; and said lines will be regulated and controlled by a damper situated and operated like b in Fig. 1.

Having thus fully described my said invention and improvement, and the several modes of applying the same, I will next proceed to specify my claims, and what I wish to secure by Letters Patent.

I claiml. The back of' a cooking-stove, constructed with rests and recesses, as described andi shown, for the purpose set forth.

2. The combination of a water-tank with such recessed back of said stove, in the man-- ner and for the purpose above described.

3. The division ofthe upper'part of the flue by means of the plate e, or its equivalent, in combination with damper b, for the purpose above described.

4. The division ofthe said flue by the platel e inpFig. 6, in combination with the flue fin. the tank A, Fig. 2, for the purpose` herein described.

5. 'llie two parts of the back plate of thel stove, d and e, in combination 'with the iluef opening between them, for the purposes herein described.

6. Said several parts ot the back plate otv a cooking-stove, and the ilueopening between. the Sallie, in combination with the water-tank A, constructed and arranged in the mannerl and for the purposes herein described.

7. The plate e', to complete the stove Without the combination of the watcrtank, sub'- stantially as described.

8. The damper b, in combination with the plates d and e, substantially as described.

BENJAMIN F. JOHNSON.

In presence oil- J OEL TIFFANY, S. V. Hnwns.

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