US1541494A - Stove - Google Patents

Description

June 9, 1925'. 1,541,494 Y O. 1-. HARRISON STOVE Filed May 7. 1924 3 Sheets-Sheet 1 i unaa -wam June 9, 1925. 1,541,494 o. 1.. HARRISON STOVE Filed May '7, 1924 5 Sheets-Sheet 2 June 9, 1925. 1,541,494

0. L. HARRISON STOVE Filed May '7, 1924 3 Sheets-Sheet s Patented June 9, 1925.

OWEN L. HARRISON, F GOLETA, ILLINOIS.

STOVE.

Application filed May 7,

To all whom it may concern:

Be it known that I, OWEN L. HARRISON, a citizen of the United States, and a resident of Coleta, in the county of Whiteside and State of Illinois, have invented certain new and useful Improvements in Stoves; and I do hereby declare the following to be a full,

' clear, and exact description of the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

This invention relates to stoves which use oil or gas as fuel and one object is to provide a novel construction whereby the heat from the burner may be quickly distributed to all portions of the top plate. Another object is to provide means whereby the distribution of the heat may be easily and effectually controlled, and yet another object is to provide means whereby the burner will be firmly supported in operative relation to the heat-distributing elements but may be easily withdrawn when cleaning, wick-trimming or other operations, incidental to use, are to be performed. Other objects will appear in the course of the following description, and the invention resides in certain novel features which will be hereinafter fully described and particularly pointed out.

In the annexed drawings, Figure 1 is a side elevation, partly broken away and partly in section, of a stove embodying the invention;

Figure 2 is an end view of the same;

Figure 3 is a perspective view of the top plate;

Figure 4: is a perspective view of the pan' or support for the top plate;

Fig. 5 is a detail perspective view of'the burner support;

Fig. 6 is a detail perspective view of the bracket which carries the burner support;

Fig. 7 is a detail perspective view of the lever which efiects adjustment of the burner; I

Fig. 8 is an enlarged elevation of the guide for the burner assembly. Y I

Figure 9 is a perspective view showing a top plate and damper construction different in some particulars from the form shown in'Fig'ures 1 to 4:;

Figure 10 is an end elevation of the top plate structure shown in Figure 9;

Figure 11 is a detail view of a portion of 1924:. Serial No. 711,670.

the blank from which a top plate unitmay be formed;

Figure 12 is a detail section of a portionof the top plate structure shown in Figure 9; F lgure 13 is detail perspective view of the central plate shown in Fig. 9; I

Figure 1a is a sectional elevation showing a .chimney mounting dilfering from that shown in the other figures.

The stove structure. includes a supporting frame consisting of legs 1, preferably of angle bars, connected by cross bars or braces 2 and side rails or braces 3. Upon this frame is carried a pan 4 which may be constructed of sheet metal and has hollow side. walls 5 adapted to rest on the rails 3 and connected by the end walls 6. The end walls are lower than the side walls and are provided at their upper edges with inwardly projecting flanges or webs 7. Above the flanges or webs 7, dampers 8 are mounted between the ends of the side walls and consist preferably of rectangular plates of dimensions corresponding to the space between the side walls and above an end wall. At the ends of the dampers are journals..9 rotatably engaged through the side walls, and a handle 10 is secured upon one journal of each damper whereby to adjust the damper. In the bottom 11 of the pan, preferably at the center, is an opening 12 about which is provided a collar or ring 13 the diameter of which diminishes upwardly, and at 0pposite sides of said opening transverse plates orpartitions 14 are secured to the bottom and side walls of the pan. These partitions converge upwardly and rise to the plane of the ledges 7 and between said partitions, at

opposite sides of the opening 12, are longitudinally extending partitions 15. Between the partitions 14 and the end walls and be tween the partitions '15 and the side walls, the bottom of the pan is covered with as bestos or other heat-resisting material so that radiation downwardly from the top plate and pendant elements thereon will be I counteracted.

The top plate shown in Figures 1 toconsists of a fiatthin metal plate 16 of proper dimensions to rest on the upper edges 7 of the side walls 5 and extend from end to end thereof. Through the plate, preferably at its center, is an opening 17, which is normally closed by a lid 18, and on the under I plate 16 and they should, therefore, be very thin and sufliciently numerous to extend over approximately the entire surface of the plate. As a convenient method of permanently scouring the fins in place, they are provided with basal flanges 2O constructed with openings therein to receive studs formed on the plate, the studs being upset, in the manner of a rivet, against the flange. Two ad jacent fins'niay have the same basal flange thereby constituting a channel member, as shown in Figure 3.

The burner 21 is equipped with a chimney '22 of'cylindrical form with a ta ered upper end 23 fitting closely within the ring 13 so that there can be no flow of air into the pan around the outside of the chimney which, obviously, would have a cooling effectand cause the consumption of an excessive quantity of fuel. The burner is carried by an arm 24 extending from a plate 25 which is fixed to the lower end'of a sleeve 26 slidably mounted on a post 27 which is secured at its upper end to a cross bar .28 and at its lower end in a bracket .29. The cross bar 28 is secured between the rails 3 of t'he'main supporting frame and the brack et 29 is secured to a cross bar 2 carried by the legs 1. On the sleeve 26 is a boss 31 to which is pivoted the short arm of an angle lever 32 which has the'free end of its longer arm turnedlaterally to form a handle 33. To said lever, at the bend thereof, is pivoted the lower end of a link 34 which is freely suspended at its upper end on the cross beam 28'. The burner may be connected to the :arm 24 in any preferred mamier, and I have shown a lug 35 depending from the base of the burner and connected to the arm 24 by a screw 36. When the lever is in its lowered position, the connection with the link 34 is past the dead center and the lever :is thereby held down. When the lever is swung to raised position, the 'end of the link is carried outwardly so that the sleeve 26 with the arm 24 and the burner will be lowered, the chimney being withdrawn from the ring 13 so 'thatit may be removed-from the burner or swung over its side to permit lighting of the burner, cleaning, or trimming of the wick, if the fuel be-of such kind as to require me of "a wick.

The fuel may be supplied from a :tank or reservoir 3.7 which is raised or lowered with the barrier in order to prevent flooding of the ;.bu:rner when the latter is lowered, the tank being preferably of 'the vacuum feed type. A feed pipe 38 connects the bottom of the tank with the burner, and a tankholder 39 is fitted on they pipe; to support the tank. The plate 25 extends past the end of the sleeve 26 and is provided in its upper side with a groove 40 extending parallel with the arm'24 'to receive and support the elements 19, and, as these elements are very thin and numerous, they soon become heated and transfer the heat to the plate. The burner is, of course, equipped with a wickraiser or other flame-regulating device (not shown). If the flame be large and both dampers open, the whole top soon becomes hot enough for cooking; if one damper be fully closed and the other wide open, with a'moderate flame, the .closed end soon 'be comes 'hotenough formaking coffee or tea; if both dampers be closed and the stove lid removed, an oven may be set over theopening 1 7 and baking accomplished. 'Various ZLClJHStHlBHlZS of the dampersmay be effected according .to the conditions of use and the work to be done. As the burner is located preferably at the center of the stove, the rising heat is naturally divided between the ends of the top plate, and as the fins are straight and parallel the heat travels without deviation and the entire topplate is quickly and evenly heated.

In Figures 9 to 13 I have illustrated a form of the invention which embodiesa top plate construction different from that previously described. Referring particularly to Figure 11, 43 designatesa :blank of thin sheet metal of rectangular outline and preferlably, though not necessarily, having a central longitudinal flat thickened portion 44. This blank is rolled 'or otherwise bent to form a hollow I-bar 45 and a plurality of the I-'ba'rs areassembled side by sidefas shown in Figure .10, openings 46 being formed through the webs of the bars'and arranged in alinement. Side plates 47 .are disposed against the sides of the outermost bars and clamping rods 48 are inserted through the -.openings 46 and corresponding openings in the side plates whereby to se cure the bars firmly together. In this em bodi-ment -iof the invention, the tops ofthe I-bars form the top plate and theassembled I-bars aredisposed in the pan so esto rest on the webs or flanges 7 of the end walls and on the edges of the partitions 14, the

pan being of the same construction as beforetitions 14 of the pan so that the heat from the distributing chamber may enter the bars and flow toward the ends of the same. Those I-bars which would normally extend over the opening 12 in'the pan are reduced in length by being cut away at their centers through a distance equal to the diameter of said opening. Within the open area thus exposed is fitted a plate 49 having a central round opening 50' therethrough and provided atits ends with supporting lugs 51 adapted to enter the open ends of the heads of the shortened I-bars and thereby retain the plate in place. The usual stove lid is fitted to the opening 50 which is round because experience has shown that withthe circular form the lid is less apt to fall through the opening.

The rocking dampers previously described cannot be accommodated with the I-bar construction of top plate, and I, therefore, employ the vertically sliding dampers 52 which are mounted against the outer sides of the end walls of the pan, and in their hlghest positions, cover the ends of the I-bars. These damper plates are provided near their ends with vertical slots 53 receiving lugs 54 projecting from the end walls of the pan and forming guides for the dampers and bearings for the damper-adjusting shaft 55 which shaft is equipped at one end with an operating head or handle 56 and between 1ts ends with pinions 57 meshing with racks 58 on the dampers. By rotating the shaft in one or the other direction, the damper will obviously be raised or lowered to wholly or partly cover or uncover the ends of the I-bars. It is to be understood that the term I-bars is used for convenience and not as a limitation as the bars may be of other crosssectional forms, provided they are hollow and the sides of adjacent bars are out of contact except at the top and bottom.

In the form shown in Figure 14, the burner is supported in a fixed position and the chimney comprises a lower section 59 fitted to the burner and an upper section 60 mounted telescopically around the lower section and having its upper end tapered, as at 81, to fit closely within the collar or ring 13. The upper section is formed with two or more bayonet slots 62 in its wall in which are engaged correspondingly located studs 63 on the lower section. When the studs lie in the circumferentially extending branches of the slots, the upper section of the chimney will be held in its raised position and, to effect a close engagement between the chimney and the pan, said branches of the slots may be inclined so as to have a'cam action on the studs. By turning the-upper chimney section, the vertical branches of the slots will be brought into engagement with the studs and the section then lowered. Reverse movement, of course, will raise the chimney section and secure it in the raised position. To facilitate manipulation of the upper movable chimney section, ears or handles ,64, of any preferred form, may be provided thereon.

Having fully described my-invention what Iclaim as new and desire to securebyLetters Patent, is w 1 1. A stovecomprising a pan containing a heat-resisting body, and a central heat-distributing chamber, a burner in said chamber, a top, heat-conductingelements on the under side of the top in communication with the burner, and dampers at the ends of the panto cover or uncover the ends of the heat-- conducting elements.

2A stove comprising a pan having an opening through its bottom, a burner fitted to said opening, partitions in the pan atopposite sides of said opening, a heat-resisting body in the pan between said partitions andthe ends of the pan, a top resting on-the pan and including heat-conducting elements extending downwardly to the heat-resisting body and open to the burner, and dampers at the ends of the pan controlling the draft along the heat-conducting elements.

3. A stove comprising a pan having an opening through its bottom, a top including heat-conducting elements, a burner fitted to the opening in the pan, and means for moving the burner into or out of operative relation to the opening.

4. A stove comprising a pan having an opening through its bottom, a top including heat-conducting elements, a burner disposed below the opening in the pan, a tank supplying the burner, and means for moving the tank and the burner simultaneously whereby to position the burner relative to the opening in'the bottom of the pan.

5. A stove comprising a supporting frame, a pan on said frame, a top on the pan, a post on the frame, an arm mounted slidably on the post, a burner carried by said arm, and means acting on said arm to raise and lower the same and thereby move "the burner into or out of operative relation to the pan and the top.

6. A stove comprising a main frame, a post thereon, a pan carried by the frame, a top on the pan, a sleeve slidably mounted on the post, a plate carried by the lower end of the post, a burner carried by said plate, a tank, a feed pipe connecting the tank and the burner, means for clamping the pipe to the plate, and means for raising and lowering the sleeve whereby to move the burner into or out of operative relation to the pan and the top.

7. A stove comprising a 'pan having an opening through its bottom, a burner fitted to said opening, and a plurality of hollow thin I-ba'rs supported in the top'of the pan sid'eby side and open to the burner.

8. A stove comprising a pan having an opening through its bottom, a heat-generator cooperating with the opening in the bottom of the pan, a distributing chamber in the pan surrounding said opening, a topplate supported upon the pan, and a plurality of heat-conducting elements intimately united with the under side of the top plate'extending at an angle to the distributing chamber and open to said chamber, said elements being-interrupted immediately over the opening in the bottom of the pan.

9. A stove comprising a pan having an opening through its bottom and a tapered collar around said opening, a burner below said opening, and a chimney for the burner having a tapered upper end fitted to said collar and movable into and-out of the same. 7 10. A stove comprising a pan having an opening in its bottom, partitions extending between theside wallsof the pan at opposite sides of said opening and defining with said walls a heat-distributing chamber, a burner 11. A stove comprising a pan having a central heat-distributing chamber and an opening in the bottom of said chamber, a

burner fitted to the opening in the bottom of the heat-distributing chamber, a heat-resisting body extending from the heat-distributing chamber to the ends of the pan, a top plate supported by the pan and extending over the distributing chamber, and a plurality of thin heat-conducting elements intimately united with'the under side of the top plate extending between the heat-distributing chamber and the ends of the top plate and resting on the heat-resisting body.

In testimony whereof, I have signed this specification in the presenceof two subscribing witnesses.

OWEN'L. HARRISON.

VVitnesses-z J. W. CLARK, FRANK R. BUSHMAN.

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