US1000020A - Combined heater and cook-stove. - Google Patents

Description

J. A. LAGHANE. COMBINED HEATER AND COOK STOVE. APPLIOATION FILED NOV. 4, 1909.

1 ,000,020, f Patented Aug. 8, 1911.

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UNTTE STATES PATENT OFFTCE.

JOSEPH A. LACHANE, OF ST. MARTIN, QUEBEC, CANADA.

COMBINED HEATER AND COOK-STOVE.

'Fo all whom it may concern:

Be it known that I, JOSEPH A. LACHANE, a subject of the King of Great Britain, residing in St. Martin, county of Laval, Province of Quebec, and Dominion of Canada, have invented a certain new and useful Combined Heater and Cook-Stove, of which the following is a specification.

This invention is a combined heater and cook sto-ve, wherein the heat and gaseous products of combustion from the heater are utilized in a distinct structure for cooking and baking purposes.

In a practical embodiment of the invention I provide an oven structure which is assembled into direc-t engagement with a heating stove, means for securing said oven structure to the stove, and means for directing the gaseous products of combustionv across, downwardly, beneath, and upwardly with respect to said oven structure, whereby the oven chamber is subjected on a number of its walls to the heat and the escaping gaseous products of combustion.

The oven structure is preferably, although not essentially, of knock down or separable construction for convenience and economy in storage or transportation, and in attaining this end, the several walls, flue plates, and corner members are secured detachably to each other, whereby the parts may be assembled compactly and said parts may be easily set up and connected together for use. rThe walls composing the oven structure are united by joints which preclude the escape of smoke and gases into the room or apartment, and at the same time, these joints enable the' parts to be readily separated or connected, as desired.

In the accompanying drawings I have illustrated one practical embodiment of the invention, but the construction shown therein is to be understood as illustrative, only, and not as defining the limits. of the invention.

Figure 1 is a vertical longitudinal section through a combined heating stove and oven embodying the invention, the plane of the section being indicated by the dotted line 1 1 of Fig. 2. Fig. 2 is a horizontal sec- Specicaton of Letters Patent.

Application filed November 4, 1909.

Patented Aug. 8, 1911.

serial No. 526,174.

tion on the line 2-2 of Fig. 1 illustrating a part of the heating stove. Fig. 3 is a vertical cross section on the line 3 3 of Fig. 1 looking in the direction of the arrow. Fig. 4L is a detail perspective View of o-ne form of damper. Fig. 5 is a detail perspective view of a part o-f one of the plates composing the oven illustrating the double flanges at the edge of said plate.

The oven structure, A, when considered as an adjunctive device, is separate and distinctfrom the heater, B, the said oven structure being adapted to be applied or fitted directly and externally to said heater in such manner that the oven structure is adapted to partly envelop the external surface of the heat-er for the purpose of utilizing the heat radiated from the heater, it being preferred, also, to so position the oven structure that the products of combustion from the heater will pass into, and circulate within, said oven structure before finally escaping into the stack or uptake.

Heater, B, is, or may be, of any suitable construction known to the art, and in Fig. 1 of the drawings said heater is illustrated as being of the type known as a Quebec heater. As is well known, heaters of this type are not provided with a grate in the tire chamber, and in the example shown, said heater consists of a metallic shell, In, an internal lining, ZD, of fireproof material, usually fire brick, a cast metal base, b2, 4and a cast metal tray, b3. The base is provided with short depending legs, b4, adapted to rest upon the tray, b3, for the purpose of securing an air space, b5, between the base and the tray. The tray is provided, also, with short depending legs, o, which raise the heater slightly above the floor line, whereby air is permitted to circulate between the floor and the tray, and also between the base and the tray. The stove is equipped with a door frame, C, to which is hinged an ash door, c, the latter being opened to secure a draft through the stove and for the removal of the ashes when desired.

D designates a top plate composed, preferably, of cast iron and of such dimensions as to extend over heater, B, and oven structure, A. This top plate is provided with the usual stove lid holes and with a nipple. d, for the attachment of the smoke pipe, D.

Instead of removing the stove. lids from. heater, B, for introducing the fuel into the stove, I provide a separate door frame, D2, at the front side of the heater. Said door frame, D2, like door frame, C, is composed of cast metal, and it is provided with a door, D3, which may be opened for the introduction of the fuel into the heater.

The oven structure, A, is, preferably, of a separable or knock down construction, and while the separable form of the oven structure is preferred, yet the invention is not to be understood as being limited to such construction. For economy in manufacturing, it is preferred to use sheet or plate metal in the construction of the oven structure, and I will now proceed to describe in detail the oven being composed of parts which are separably attached.

The lower part of the oven structure is embodied in a base member, E, comprising plates, e, e, which are secured at their side edges. Said plates, e, e', are provided at their front edges with a recess, e2, which conforms to the external shape of shell, of heater, B, and these recessed edges of plates, e, e', receive a stay plate, c3, and a bridge plate, et. As shown in Fig. l, the top and bottom edges of said plate, e3, are flanged in order that they may be united to, and fitted between, said plates, e, e. The front recessed edges of said plates, e, e, are flanged, and bridge plate, et, has its top and bottom edges doubled or folded over the flanged edges of said plates, e, e', all clearly shown. Stay plate, e3, and bridge plate, et, are united to each other by rivets or bolts, and said plates close the bottom flue or chamber of base member, E, as well as serving the purposes of a reinforce to preclude bending of the plates. The bottom plate, of the base member extends rearwardly beyond the corresponding rear edge of the top plate, e, for a purpose which will presently appear. Another element of the oven structure is the top plate, F, the front edge of which is recessed similarly to the recesses, c2, in the front edges of plates, e, e, of base member, E. The recessed front edge of top plate, F, registers with the recessed front edges, e2, of plates, e, e, and said recessed edges of the plates, e, e, and F, are tted snugly to the shell, o, of heater, B, whereby the oven structure is adapted to partially envelop the heater, so that the heat radiated from the heater will be received directly in oven structure, A. Other members of the oven structure are side plates, G, G, back plate, H, and plate, I, forming the back wall of the oven.

Side plates, G, G', are attached at their bottom and top edges to plates, e, and top plate, D, respectively, and at their rear ends said side plates, G, G, are provided with vertical flanges, g, see Fig. 2. The back plate, H, is provided at its side edges with vertical double flanges, L, which receive flanges, g, of the side plates, whereby the side and back plates are united by interlocking joints which produce air tight connections between the several plates for the purpose of precluding the leakage of smoke and gases from the flues of the oven struc ture. Bottom plate, e, is provided at its extreme rear edge with a doubled flange, z, into which is fitted the lower edge of back plate, H, the top edge of said back plate being suitably joined to the top plate, D. Side plates, G, G', are, or may be, provided with doors, G2, whereby access to oven chamber, A', may be obtained at one or both sides of the oven structure.

The rear edge of plate, e, forming a part of base member, E, is provided with a doubled flange, z', and in this flange is fitted the lower edge of oven back plate, I. At its side edges the oven back plate, I, is provided with flanges, j, j', which extend in opposite directions from said back plate, I, as shown in Fig. 5, whereby each vertical edge of back plate, I, is doubly flanged. Said flanged edges, j, j, of back plate, I, are fitted in vertical guides or keepers, J, the latter being secured by rivets, or otherwise, to the inner opposing faces of side plates, G, G. The oven plate, I, is thus interlocked with the side plates, G, G, and with plate, e, of the bottom member, E, these interlocking connections providing tight joints between the several part-s. The top horizontal edge of oven back plate, I, overlaps the rear horizontal edge of plate, F, at the top of the oven structure, and if desired, the rear edge of plate, F, may be provided with a flange, f, adapted to be doubled or folded over the top edge of oven plate, I, as shown in Fig. l, thus locking plates, F, I, to each other.

K, K indicate short vertical partitions in the chamber or flue, E', of the chambered base member, E, one of said partitions being shown in full lines in Fig. l, and the positions of said partitions being indicated in dotted lines in Fig. 2. These partitions extend forwardly from the vertical plane of plate, I, to a suitable point intermediate plates, e, e, of base member, E, and the partitions divide the chamber, E', into passages or flues, as will more fully appear presently.

L, L designate flue plates shown in Figs. l and These flue plates occupy vertical positions in the space between back plate, H, and oven plate, I, and said flue plates. divide said intervening space into down draft flues, M, M, at the respective sides of the oven structure, and an up draft Hue, M2, intermediate said down draft Hues. Ono down draft flue, M, is at one side of the oven structure so as to communicate with the space between side plate, Gr', and partition, K, whereas the other down draft Hue, M', communicates with the space between side plate, G, and partition, K', see Fig. 2. The up draft Hue, M2, communicates at its lower end with that part of chamber, l', between partitions, K, K', while the upper part of said flue, M2, opens into or communicates directly with the stove pipe or up-take, D'.

Each partition, L, L', is provided at its front and rear vertical edges with double Hanges of the character shown in Fig. 5 as a part of oven plate, I, and the doubly flanged edges of each flue plate are held in guides or keepers, O, O'. One guide or keeper is fastened to the outer face of oven plate, I, while the other guide or keeper, O', is fastened to the inner face of back plate, H, said guides or keepers, O, O', being secured in corresponding positions in order that the Hanged edges of the flue plate may be fitted in said keepers and be adjusted lengthwise therein by a sliding motion when it is desired to insert the Hue plate into the oven structure or to withdraw said Hue plate from the oven structure.

The top plate, F, of the oven structure is parallel to top plate, D, and intermediate said plates, D, F, is a horizontal flue, F', the front part of which communicates directly with the lire chamber of heater, B, whereby the smoke and gaseous products of combustion pass directly from the heater y into the top Hue, F', from whence the smoke and products of combustion are adapted to pass into the down draft flues, M, M', in the oven structure, and from said down draft Hues the smoke and products of combustion pass through base chamber, E', around partitions, K, K', and thence between said partitions into the up draft flue, N2, from whence the products of combustion make their escape through the up-take, D.

The upstanding edges of top plate, F, and oven plate, I, provide a bridge wall, P, intermediate top Hue, F', and rear Hues, M, M', M2. The down draft Hues, M, M', are normally in communication with the top Hue, F', but direct communication of top Hue, F', with the up draft Hue, M2, may be established by opening the damper, P', said damper being carried by an operatingrod, y), having a crank, p'. The operating rod hung or pivoted across the top of bridge wall, P, so that the damper may be raised to the full line position of Fig. l, or lowered to the dotted line position in the same figure. It is evident that when the damper is raised to the full line position of Fig. l direct communication between up draft Hue, M2, and top Hue, F', is shut 0H so that the products of combustion will pass from flue, F', into down draft Hues, M, M', and thence in the manner described heretofore; but when the damper is lowered to the dotted line position of Fig. l, then the products of combustion will pass from top Hue, F', directly into smoke pipe, D', thus precluding the circulation of the products of combustion around the oven.

The oven structure is braced at its several corners by corner members, Q, Q', and R, R', said corner members being extended below the oven structure so as to produce supporting legs for said oven structure, one of said supporting legs being indicated at r in Fig. l. The cerner members, R, R', at the rear part of the oven structure are composed preferably of angle irons which are fitted externally to the 'flanged and interlocked edges, g, h, of the side and back plates, said corner members being fastened by bolts to the oven structure in order that they may be detached therefrom. 'The corner members, Q, Q', at the front of the oven structure are composed of angle or curved irons adapted to be applied to the side plates, G, Gr', and to extend across the space between said side plates and the heater, as shown in Fig. 2. The front corner members are riveted or bolted to the side plates so as to close the front part of flues, E', F', and thatpart of the oven chamber which remains unclosed when said oven chamber is applied to the heater, all as shown clearly in Fig. 2. The front corner members are fastened to the shell, o, of heater, B, by employing vertical angle irons, S, the latter' overlapping the corner members, Q, Q', as shown. Said angle irons, S, are preferably riveted to t-he shell of heater, B, and to one Hange of corner members, Q, Q', whereby the front part of the oven structure is attached directly to the heater in a manner to preclude the escape of hea-t and products of combustion, and at the same time the oven structure may be readily disconnected from said heater. It will be understood that the corner members, Q, Q', It, R', have parts thereof extended below the oven structure so as to form supporting legs or feet for said oven structure.

From the foregoing description taken in connection with the drawings itI will be seen that I have provided a simple and strong oven structure which may be built entirely independent of the heater'. Said oven structure is capable of easy and quick assemblage with, or application to, said heat-er, and said structure may be fastened firmly to the heater by the employment of angle irons, S, which may be riveted to the heater and be bolted detachably to the front corner members of the oven structure. The oven structure communicates directly with the fire chamber of the heater so that the products of combustion will pass from said heater into, and around, the several fines of the oven structure. It is obvious that the front side of the oven chamber, A', will be heated directly by the radiation of heat from the heater, and the circulation of heat through the top flue, F, the bottom chamber, E, and the rear tlues, M, M, M2, imparts heat to the several walls of the oven chamber, whereby the oven chamber will be uniformly heated.

The several parts composing the *oven structure may easily be packed in a flat condition upon the base member, E, so that all the parts of the oven structure in knock down condition may be compactly stored and easilytransported,ln1t when it is desired to set up the oven structure the several plates can readily be fitted together and the oven structure as an entirety attached to the heater.

During the summer time it is not desired to build a re in the base part of the heater, and under these conditions I may employ a temporary grate, T, adapted to be sustained by hangers, t, in the upper part of heater, B.

The operation and advantages of my con1- bined heater and cook stove will be readily understood and appreciated by those skilled in the art from the foregoing description taken in connection with the drawings.

Having thus fully described the invention, what I claim as new, and desire to secure by Letters Patent is:

1.1n a combined heating and cooking stove, a vertical cylindrical stove-body provided in its upper rear portion with a smoke outlet, an oven structure detachably tted to the side and rear portions of said stovebody, said oven structure being provided with bottom and rear tlues, a stove top common to the stove-body and th-e oven structure, said stove top cooperating with the oven structure and forming with the top thereof a flue which communicates with said smoke outlet and with the rear Hues, and means for detachably fastening the front portions of said oven structure to the side portions of the stove-body.

2. In a combined heating and cooking stove, a vertical cylindrical stove-body provided in its upper rear portion with a smoke outlet, an oven structure open at its front side and detachably itted to the rear and side portions of said stove-body, said oven structure being provided with bottom and rear flues, a stove top extending over both the stove-body and. the oven structure, said stove top cooperating with the oven structure and forming therewith a top flue which communicates with said smoke outlet and with the rear flues, angle plates attached to the respective side portions of the stovebody, and corner members at the front portions of the oven structure, said corner members and angle plates being detachably fastened to each other.

3. In a combined heating and cooking stove, ay vertical cylindrical stove-body provided in its upper rear portion with a smoke outlet, an oven structure fitted to the rear and side portions of said stove-body, and a stove top extending across both the stove body and the oven structure, said stove top cooperating with the oven structure to produce a top iue which commu'- nicates with the smoke outlet; said oven structure including a back plate, a rear wall, vertical guides upon the opposing` faces of said back plate and the rear wall, flue plates having Hanged edges fitting in said guides, whereby descending and ascending rear {iues are provided between the back plate and the rear wall, and bottom fines communieating with the descending and ascending rear flues.

In a combined heating and cooking stove, a vertical cylindrical stove-body provided in its upper rear portion with a smoke outlet, an oven structure fitted to the rear and side portions of said stove-body, and a stove top extending across both the stovebody and the oven structure, said stove top cooperating with the oven structure to produce a top flue which communicates with the smoke outlet; said oven structure comprising a unitary base member which is provided with a chamber and with flue plates positioned within said chamber to produce bottom flues, side and top walls, a back diate the back plate and the rear wall and positioned to provide back iues which communicate with the top flue and the bottom flues, and means for separably attaching the walls to each other and to the unitary base member, whereby the parts composing the oven structure may be disconnected and folded compactly.

In a combined heating and cooking stove, a vertical cylindrical stove-body, provided with a smoke outlet, an oven structure open on the front side thereof and fitted to the stove-body t0 embrace the rear and respective side portions thereof, means for attaching the front portion of the oven structure to the respective side portions of the stove-body, and a stove top common to the stove-body and to the oven structure; said stove top cooperating with the oven structure to produce a top iiue which communicates with the smoke outlet; said oven structure comprising a unitary bottom member provided with a chamber, side walls, a top wall, a rear wall, a back plate, means for separately fastening the lower edges of i the side walls, the rear wall, and the back plate, a rear wall, other flue plates intermeplate to said unitary bottom member, flue In testimony whereof I have signed my plates positioned .Within the chamber of said name to this specification in the presence of bottom member and producing bottom lues two subscribing Witnesses.

therein, and other iue plates positioned be- JOSEPH A. LACHAINE. 5 tween the rear Wall and the back plate and lvtnesses:

producing back ues which communicate l H. I. BERNHARD,

with said top flue and said bottom flues. JAS. H. GRIFFIN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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