US2072276A

US2072276A - Cooking stove

Info

Publication number: US2072276A
Application number: US729966A
Authority: US
Inventors: George E Pickup
Original assignee: FLORENCE WEHRLE STOVE CO
Current assignee: FLORENCE WEHRLE STOVE CO; FLORENCE-WEHRLE STOVE Co
Priority date: 1934-06-11
Filing date: 1934-06-11
Publication date: 1937-03-02
Anticipated expiration: 1954-03-02

Description

March 2, 1937. G, E PlCKUP 2,072,276

COOKING sTovE Filed June 11, 1954 3 Sheets-Sheet 1 G. E. PICKUP COOKING STOVE Filed June 11. 1954 March 2, 1937.

3 Sheets-Sheet 2 f @more G6059@ ,5.

March 2, 1937. G. E. PICKUP COOKING STOVE Filed June 1l, 1954 s sheets-sheet 3 Nm.. MM,

Patented Mar., 2, 1937 l I,

UNITED STATES PATENT ormai;`

Application June ll, 1934, Serial No. '129,966

5 Claims.

This invention pertains to cooking stoves and has more particular reference te an improved cooking range and oven construction.

A primary object of the invention is to provide 5 a practical stove construction of the character indicated, that is economical to manufacture, is simple in design, highly efficient, neat of appearance, rigid and durable.

Another object is to provide a stove in which l all of the component parts are made in standardized interftting units which are easily assembled and require a minimum of fastening means to secure the same together.

Another object of the invention is to provide a stove having a cooking top over an oven and in which the fuel is utilized most economically by not only using directly transmitted heat from the heat source, but also by causing the hot flue gases to pass in contact with the cooking top and with all walls of the oven not heated by radiated heat from the heat source, whereby to secure maximum heating efiiciency from a minimum of fuel consumption, and in which an improved construction of the oven reduces to a minimum the joints between the parts constituting the same.

Another object is to provide an oven in which all the essential parts of the structure are made of anged metal castings interfitted to the desired form.

Another object of the invention resides in the provision of an improved stove front in which flanges on the forward edges of the oven walls form the principal front face of the stove, thereby eliminating the necessity for a separate front 86 frame construction for the reception of the oven door. y

An additional object is to provide an oven construction in which the oven compartment is substantially surrounded by flue gas passages and in 40 which the forward edges of the oven walls are flared outwardly and joined atv the corners to form a collar-like quadrangular elementabout the oven opening, said element forming the front closure fo/ the iiue gas passages without joints where the closure joins the oven walls.

Other objects and advantages of the invention will become apparent from the following detailed description taken in connection with the ac'- companying drawings, and in which Figure 1 is a perspective view of the stove or range.

Fig. 2 is a sectional plan view taken on line 2-2 of Fig. 1. 55 Fig. 3 is a fragmentary front perspective view with parts broken away to show the oven construction. d

Fig. 4 is a fragmentary perspective view of the back of the oven with parts broken away to show the. construction. Fig. 5 is a sectional elevation taken on line 5--5 of Fig. 2.

In general, the stove or range .of the present invention comprises a lower or base frame, side and back walls supported on the frame, an oven section between and in substantially spaced relation to the side walls and preferably connected to the back wall, the spaces between the oven and side walls having a fire-box and ashpit on one side and a reservoir on the other side of the oven. A cooking top is supported by the walls and oven, and doors for closing the oven and side spaces are supported by the front of the stove. A series of ue passages is provided about the oven compartment by means of which the hot flue gases `from the fire chamber may be diverted into contact with the oven walls, and a flue is provided in connection with the back wall of the stove for carrying off the spent gases. The oven is attached to the one piece 'back wall which provides a flue 25 passage for the back of the oven, while an im' proved integral oven front forms the front closure for the flue passages as well as the support for the oven door.

Referring to the drawings which disclose an exemplary embodiment of the invention, there is provided a base frame I0 supporting end walls I2 and I 3 and a. back wall member I 4 of the range. Each of these wall members is preferably formed as a unit ot cast iron, although sheet metal of suitable gauge may be pressed into the required form if desired. l

Intermediate and spaced from the end walls I2 and I3 are means dening an oven indicated generally by I5.` -This oven I5 comprises plates 40 dening an inner oven chamber and other plates and parts defining outer walls spaced from the inner oven chamber and forming a plurality of connected ue spaces about the oven. To this end, there are provided oven chamber side wall plates I1 and I8 and bottom and top plates I9 and 20 respectively. These plates are also preferably formed of cast metal such as iron, but they may be of pressed metal if desired. The rear edges of the oven forming plates are provided with oilset flanges 2l providing seats to intert with complementary anges 22 on the back wall member I4. The upper edges of plates I1 and I8 are transversely offset to provide angular anges 23 defining seats for receiving inset 55 depending flanges 24 at the edges of the plate 28. The lower edge of plate I8 is also transversely offset to provide a longitudinal angular flange 25 fitting in a seat provided by an upstanding inset flange 28 at the edge of plate I9. Ledge means 21 is provided on the back member I4 for supporting the rear edge of plate I9.

A plate 28 is provided below and in spaced relation to the oven chamber I5, and has an upstanding flange 29 at one end in engagement with an angular flange 38 on the lower edge of a vertical plate 8| which is disposed in spaced relation to the oven side plate I8. The opposite end of the plate 28 extends beyond oven side plate I1 and has a depending flange 32 secured by suitable bolts 33 to bosses 34 on the end wall I2 of the range. A horizontal flange 35 on end wall I2 flts in a seat 38 which is formed above the flange 32 to form a snug and uni-planular connection with the plate 28. Intermediate its ends, the plate 28 is provided with a raised portion forming a ridge 31 having at its peak a flange 38 and providing a seat for receiving a ange 39 on a portion 48 formed as a downward extension of the oven side plate |1. The inner end of the plate 28 is supported upon the frame I8 by means of an angular support member 4I which is bolted at its upper end to a flange 42 on thel plate. A lateral flange 43 on the lower end of the support 4| is bolted to the frame member I8. The oven side plate I1 is provided with a horizontal flange 44 upon which the adjacent end of the bottom plate I9 of the oven rests.

A salient feature of the present invention resides in the simplified stove front construction. To the accomplishment of this, the oven side plates I1 and I8 are preferably provided at their forward edges with integral laterally extending

flanges

45 and 48 respectively, and oven top plates I9 and 28 are provided with similar integral flanges 41 and 48 respectively. Said anges are preferably extended at their ends to interengage with parts of the adjoining flanges to define a substantial quadrangular collar or framework about the oven opening. By referring to Fig. 4, it will be seen that

flanges

45 and 48 are provided at their upper ends with rearwardly offset attachment anges 49 which are secured by suitable bolts 58 to the lower edges of opposite end extensions 5| on the flange 48. The flange 41 is provided at its opposite ends with offset attachment flanges 52 engaging with lower end extensions 53 on the

flanges

45 and 45. This collar-like arrangement of the flanges about the oven opening provides a rigid structure forming a part of the front of the stove and is preferably in a common plane with laterally extending

flanges

54 and 55 on end walls I2 and I 3, respectively, of the stove.

Through this arrangement it becomes unnecessary to provide separate framework at the front of the stove for supporting closure means for the oven or other openings in the stove. The lower edge of the flange 41 and the ends of the extensions 53 fit in a seat 55 formed at the forward edge of the plate 28 by a longitudinal rib 51 thereon inset from the forward edge. A flange 58 on the forward edge of the plate 3| is secured to the lateral flange 48 of the plate I8, and a flange 58a on the rear edge of plate 3| engages in a seat flange I4B on the edge of back member I4.

A cooking top 59 is supported by the end walls I2 and I3 and the back member I4 of the stove, as well as by the upper edges of the plate 3| and the flange 48 of the oven. A casting 88 is provided to enclose the space between the end wall I2 of the range and back member I4 to provide a fire box and ashpit chamber between the oven side wall I1 and the plate I2. Means denning a ilre pot 5I are supported within this chamber adjacent the cooking top 59, and a flue opening 82 is formed in the upper part of the back member I4 to permit flue gases from the fire box to escape through a flue 53 connected by means of a flange 84 to the rear of the member I4. The ilre pot 8| is illustrated as of the type generally used in a coal or wood burning range, for which the present exemplary construction has been primarily devised. Other forms of fuel may be used with but slight modifications of structure.

'I'he wall |1 of the oven chamber will be heated by direct radiation from the fire pot 8|, but since the source of heat is relatively remote from other parts of the oven, it is apparent that uneven heating of the oven would result if provisions for conducting heat to other portions of the oven were not provided. To obtain uniform oven heating, therefore, a damper 85 is placed adjacent a flue opening 82 formed in a plate 85n (Fig. 5) upstanding adjacent the rear edge of plate 28. The damper 85 is manually operable by means of an ear 85 extending above the cooking top 59, and is swung into open or closed position about the axis of a supporting pin 51 to the upper end of which the ear 88 is attached. When the damper is in the position shown in Fig. 5 lt effectively prevents the flue gases from escaping through the opening 82, while with the damper in the open position (Fig. 3) the gases will immegiatesl' escape through the :due opening 82 to the Not only does the damper 55 serve to close the flue opening 52' to divert the hot flue gases about the oven I5, but when the damper is opened to the position shown in Fig. 3, and the gases issue directly to the flue 83, the damper will substantially prevent the gases from reaching parts of the cooking top 59 beyond the confines of the damper. Therefore, when the oven is not in use, a relatively small fire in the re chamber will provide sufficient heat for ordinary cooking purposes, since only a small area needs to be heated. While the oven is in use, shifting of damper 85 serves to regulate the oven heat by releasing directly to the flue all or part of the hot gases.

The rear member I4 of the stove is provided with a rearwardly protruding portion 88 defining a substantial flue passage 89 adapted to permit the hot gases to contact the major area of the oven back. An oven back plate 18 is secured across the chamber 59 to close the same from the interior of the oven. An upstanding ange 1I on the rear edge of the oven bottom plate I 9 engages over the lower edge of the plate 18 and prevents the ue gases from seeping into the oven. The upper edge of the plate 18 is seated with an angular flange 12 on the rear edge of oven top plate 28. An offset flange 12a on the upper edge of the rear plate I4 provides a seat for receiving engagement means on cooking top 59.

'Ihe lower part of the flue chamber 59 opens toward the space formed between plates I9 and 28. When the damper 85 is closed to shut the opening 82a, flue gases from the fire pot 8| can only escape to the flue 83 by taking a path indicated by the arrows in Figs. 4 and 5 about the oven I5 by passing through the space between the top plate 28 and the cooking top 59, then downwardly in the space formed between plates |8 aovac're 5 to form a separation between the fire chamber l closure for the flue passages in the respective and the lower` flue passage beneath the oven, so that the flue gases will not return to the fire chamber but must passinto the chamber 69. The

flanges

46, 41, and 48 form a close-jointed front spaces behind these iianges. By having these flanges integral with the oven plates, several joints are eliminated in the front of the oven whereby the cost of construction is reduced. By

l diverting the hot flue gases in the circuitous path about the oven every wall thereof is thoroughly heated, and the utmost heating efiiciency is' secured from a minimum fuel consumption. Since ordinarily theilue gases wouldlbe'fdrawn immediately into the flue passage chamber 89 and thereby the forward part oi the bottom plate I9 of the oven would not be thoroughly heated, a baille 13 is placed diagonally across a portion of the space beneath the plate I9 from a position adjacent the opening to the chamber 69 in order to cause the gases to take a circuitous path through this lower flue passage and to direct the same against all portions of the surface of the plate i9.

A hot water reservoir 14 is preferably supported within the space formed between the end wall I3 of the stove and the plate 3| and is placed to receive heat from the hot ue gases passing through the passage between plates i 8 and 3|. The spacebelow the reservoir 14 as well as the space below the oven I5 may be suitably enclosed to provide warming chambers, or utility spaces for the reception of utensils or the like. Thus, an angular sheet metal lower closure member 15 may be secured below the reservoir 14, to form a 5 utility space. Similar sheet metal closure plates may be secured to frame I6 to form a bottom for the space below the plate 28.

The openings in the front of the oven are preferably closed by means of insulated doors which may be enameled to provide a pleasing appearance. The flange 54 hingedly supports a door 18 which closes the opening to the fire box and ashpit chamber; and a door 88 is supported by the flange 55 to close the reservoir chamber. A

55 drawer 8| is supported by the frame Ill in the utility space below the oven I5, and a door 82 closes the opening to the oven. The door 82 may be supported by means of suitable hinges (not shown) oriv flange 41, and apertures 82 are formed in the

flanges

45 and 46 for the purpose of receiving suitable means such as spur arms 84 for confining the forward swing of the door 82 to a horizontal plane when open. Suitable insulation material 85, such as asbestos, mineral wool, glass wool, or the like, is preferably lled into the various described doors enclosing the front of the stove so as y,to substantially prevent heat radiation when the doors are closed.

Ornamental columns 86 are preferably secured at each side of door 82 and extend from the frame member I0 to adjacent the cooking top 59. Columns 86 are secured near their tops by means of suitable bolts or screws 81 to the ends 5| of the flange 48 of the collar-like frame about the oven opening. Tappet screws 88 or the like serve to secure the columns 86 at a point intermediate their ends, for example, to the lower exv tensions 53 of

flanges

45 and 46, while the lower ends of the columns 86 are suitably secured to the framework I0. Not only do the columns 86 provide a decorative effect for the front of the oven, but they also provide a substantial-support for the front of the oven I5 on the bottom framework Ill.

An ash receptacle 89 is supported by the plate 28 in position below fire pot 6|. The plate may be provided with a plurality of upstanding transverse ridges 90 of the same height as ridge 51 (Figs. 3 and 5) so as to maintain a spaced relationship between the ash receptacle and the surface of the plate whereby ashes which fail to lodge in the receptacle will not become wedged beneath the receptacle and impede insertion or removal thereof.

A cleanout opening 9| is preferably formed in the flange 41 adjacent the bottom of the oven to clean out ashes and soot which may collectv in the flue chamber formed beneath the oven. All the joints between the various plates forming the oven are preferably grouted with a suitable cement to insure a gas tight structure and pre- ,vent infiltration of soot from the flue passages.

The side plates |1 and `lil of the oven have lugs 92 thereon for receiving a tray (not shown).

Legs 93 are connected at the corners of the frame I8 and support the stove above a floor.

The end wall I2 of the stove may be provided with apertures to provide draft openings 94 adjacent the fire pot 6|. A removable closure member 95 is provided at the top of the end wall l2 to permit the insertion of fuel into the fire pot without removing closure plates 96 in the cooking top 59. The outer faces of the end members l2 and I3 as well as the front closure members and such other parts of the stove as may be desired, are preferably enameled in any desired color combinations to provide a pleasing exterior for the range.

By constructing the various parts of the stove as cast units having flanged edges vto intert with or form supports for adjoining parts of the construction, there is secured a simple yet effective connection of the parts which requires a minimum of bolts or screws in assembling the range. The parts are preferably constructed as standardized units and are easily and quickly assembled into the finished structure.

I will state in conclusion that while the illustrated embodiment of the invention discloses a preferred form, it is to be understood that the same may be considerably modified in detail without departing from the scope of the appended claims.

I claim as my invention:

1. A stove including a base framework and having an oven compartment, a front surface thereon surrounding the opening to said oven, a closure member supported by and engaging said surface and adapted to close the oven front, the side margins of said closure member extending short of the vertical marginal edges of said surface, and decorative supporting columns secured to said surface beside said closure member and extending to and being secured to said framework, whereby the front of the oven is supported by said columns and said surface is substantially entirely concealed by said closure and columns..

`2. A stove comprising a bottom, vertical side plates, a rear member defining a flue passage, an oven between and spaced from said side plates,

said oven having double walls deiining-iiue gas passages along its top, one side wall and bottom and communicating with said rear iiue passage, a fire-box in the space between the other `wall of said oven and the adjacent side plate and having a connection with said iiue gas passages, the top, one side and bottom oven walls having integrally cast, laterally extending flanges at their forward edges forming closures for said iiue passages, said iianges also forming a substantial part of the front of said stove, lateral flanges on the side plates and lying in a common plane with said laterally extending oven wall flanges, and closure means carried by said flanges to close the openings in the front of the stove.

3. A stove construction comprising a fire chamber; an oven on one side .of said fire chamber including top, bottom, rear and spaced side plates; enclosing top and bottom walls spaced from said oven top and bottom plates, respectively, and an enclosing side wall spaced from the oven side plate remote from said re chamber; laterally extending iianges formed integrally with the forward edges of said oven plates and connected together at their adjoining edges to define a rigid collarlike structure deiining the mouth of the oven and holding the plates firmly together; the outer edges of the top and bottom plate flanges and the iiange on said remote side plate being connected with said top, bottom, and side walls, respectively, and thus forming enclosing flue spaces about the top, remote side and bottom of the oven from which waste products are permanently excluded from entering the oven chamber along the -front edges of the oven plates due to the integral arrangement of said lateral flanges.

4. In an oven construction for cook stoves, the combination of a plurality of plates forming spaced side, top and bottom walls of the oven chamber; said plates being connected along their adjoining edges to form a substantially tight enclosure; integrally formed angular flanges of substantial width extending laterally of the front margin of each of said plates; and extensions on the ends of said flanges connecting adjacent anges and securing the same into a rigid frame dening the mouth of said oven chamber; said frame serving as the front wall of the stove about the oven mouth.

5. In a stove construction, comprising, in combination, an oven including spaced side walls and top and bottom walls connected in sealed relation, the front margins of said side and bottom walls having iianges formed integrally thereon extending laterally in substantially the same plane and serving as a substantial part of the front of the stove surrounding the mouth of the oven, each of said flanges on said side walls having an aperture therein adjacent its lower end, and anoven door supported by the ange on said lower wall and having parts extending into said apertures.

GEORGE E. PICKUP.