US1170606A - Oil-stove. - Google Patents

Description

L. S. .CHADWICK.

OIL STOVE.

APPLICATION FILED AUG.6. 1914.

Patented Feb. 8, 1916.

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3 SHEETS -SHEET I.

L. S. CHADWICK.

OIL STOVE.

APPLICATION FILED AUG.6,19I4. 1,170,606. Patented Feb. 8, 1916.

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OIL STOVE.

APPLICATIONYFILED AUG.6, 1914.

Patented Feb.8, 1916.

3 SHEETSSHEET 3- g an s rains earn, pron.

LEE s. onnnwicx, or AST CLEVELAND, FOUNDRY COMPANY, or CLEVELAND,

OHIO, ASSIGNOR TO THE CLEVELAND OHIO, A CORPORATION OF OHIO.

OIL-STOVE.

. Specification of Letters Patent.

Application filed August 6, 1914. Serial No. 855,426.

To all whom it may concern:

I Be it known that 1, LEE S. CHADWIOK, a citizen of the United States, residing at East Cleveland,'in' the county of Cuy-ahoga and have invented a certain new and useful Improvement in Oil-Stoves, of which the following is a full, clear, and

exact description, reference being had to the accompanying drawings.

This invention relates to oil stoves which are designed for liquid fuel and which, while capable of operation under more general conditions of use, are particularly well adapted for the burning of such fuel in places exposed to drafts andwith the main-.

tenance of a smokeless flame. Liquid fuel stoves possessing this capacity of operation are particularly useful in the art as so-called orchard heaters.

.It is the general. object ofthis invention to produce a stove of this kind, which, while being particularly eifieient in operation, will be at the same time extremely economical of production; to produce a stove of this character which is simple in construction, involving a small number of parts, and which can be readily assembled and disassembledfor" purposes of packing and shipping; also one which is particularly easy to clean and to maintain in operation.

Further and more detailed objects of the invention will appear hereinafter in connection with the descriptive matter of the specification and will be embodied in the combinations of elements set forth in the claims annexed hereto and illustrated in the, drawings forming part hereof, wherein- Figure 1 represents a central vertical sec tional view through a stove or heater constructed in accordance with my invention;

Fig. 2 is a sectional view corresponding to the line 2-2 of Fig. 1 and showing half the stove; Fig. 3 a view similar to Fig. 1 of a modification of the stove shown in the. first two figures; Fig. 4 a sectional view corre sponding to the line 44 of Fig. 3, showing half the stove; Fig. 5 a view, similar to Figs. 1 and 3, but showing a still further modified form of my invention; and Fig. 6 a sectional view corresponding to the line 66 of Fig. 5, showing half the stove.

Describing by reference characters the variotis parts illustrated in Figs. 1 and 2.. 1 denotes the outer wall, 2 the bottom wall,

The outer wall and the bottomwall may be conveniently formed from a single sheet of metal, and the inner wall 3 may be connected to the bottom wall in any. approved manner. as indicated at 2. In the embodiment of my invention illustrated herein, the inner wall 3 is shown as a small cross-sectional area through which air is admitted to the interior of the inner comminghng tube. At its upper end, the wall 3 .is united to an annular cap or diaphragm 4:, which is shown as extending horizontally outwardly from the tube, thence downwardly and outwardly, as shown at 5, thence downwardly, as shown at 6, to form acylindrical wall, thence outwardly, as shown at 7, to form a horizontal flange, and thence downwardly to form an extended cylindrical wall 8 which constitutes an inner wick tube, the bottom of the wall 8 extending preferably to the bottom wall of the reservoir and being provided with suitable means for permitting the oil in the reservoir to circulate through the bottom part thereof, the bottom of the wall 8 being shown as upwardly notched to provide apertures 9. The reservoir may be supported in any convenient manner that will enable air to pass therebeneath and into the central tube 3, the particular means in this case being angular sheet metal legs 10, which may be riveted to the bottom and outer wall oi the reservoir. rated commingling tube which is seated about the cylindrical wall 6 with its bottom supported by the ledge 7. This commingling tube may, if desired, be secured to the wall 6 in any convenient manner, as by peening to gether the overlapping'metal parts. The

'top of this commingling tube is closed by a tube of comparatively 11 denotes an inner perfobe secured to the cover in any approved manner, as by being fitted within depressions 14* therein, the upwardly and 1nwardly projecting portions 15 of the straps supporting a frusto-conical hood 16 constituting a shield extending above the tops of the commingling tubes. The base of the hood or shield is preferably substantially flush with the surface of the cover therewithin, such portion of the cover being projected upwardly into an annular ring or corrugation, as shown at 17. The inner peripheral portion of the cover is shown as projected downwardly to form a cylindrical wall 18, thence inwardly to form a horizontal ledge 19, thence downwardly to form a short cylindrical wall 20, which wall may be secured to the outer wick tube 21 in any approved manner. The outer wick tube 21,

'when the parts are in operativerelation to each other as shown in Fig. 1, preferably projects above the inner wick tube and is shown as provided at its top with a series of inwardly projecting fingers 22 constituting a stop for the upper edge of the wick. The bottom of this outer wick tube terminates a considerable distance above the bottom of the reservoir and is flared outwardly, as shown at 23, to provide with the adjacent inner wick tube 8 a flaring mouth for the wick. The seat provided by the wall 18 and the ledge 19 is adapted to receive the outer perforated commingling tube 24, which may be secured to the wall 18, if desired, as by peening together the overlapping metal parts. 25 denotes the wick, which is inserted into the wick space provided between the tubes 8 and 21. This wick is preferably of less thickness than the width of the space between said tubes and the part of the wick which is located within the lower part of the wick space is engaged by a carrier band 26 which is applied to the inner surface of the wick. This band is substantially identical in its construction and mode of application to the wick with that shown in my copending application No. 852,613 filed July 23, 1914. It comprises a cylindrical body having a plurality of outwardly projecting spring fingers 27 and at its bottom an outwardly flaring skirt 28 forming with the corresponding skirt 23 a flaring path for the wick. The band is of such diameter as to force the wick outwardly into engagement with the outer wick tube whereby the wick will be retained in place frictionally between the band and the outer wick tube when the carrier is removed from the reservoir, making the wick and the band a part of the cover '29 denotes a frusto- 'able the operator to pour conical hood having a handle 29, the hood serving as an extinguisher for the flame and also as a means for protecting the burner and other parts therebeneat-h against rain or other weather conditions. 'With the parts constructed and arranged as described it will be evident that, when it is desired to fill the reservoir, it will be necessary only to remove or tilt the cover 13, which will endirectly into the reservoir without the use the liquid fuelof'a funnel or other special filling appliance,

the outer comminghng tube-24:, the outer wick tube 21, the wick 25, the wick band 26, and-the shield 16 (when provided). being movable with the cover and forming part of the cover assembly. The wick may be lighted when the cover is thus removed bv tilting or raising the cover a suflicient distance to expose the top of the wickabove the inner tube 11 to a lighted match or torch; or it may be ignited by any suitable type of hydrocarbon igniter, whereby burning fuel,

such as gasolene, may be dropped into the top of the wick tubes. It will be observed that the innerwick tube 8 is provided within the top thereof with a series of perforations 8. These perforations permit any vapors that may be generated in the part of the reservoir included between the tubes 8 and 3 to pass upwardly into the wick space.

In Figs. 3 and 4 there is shown a modification of my invention wherein the reservoir comprises two concentric portions, the outer portion being provided with a cover which may be rigid therewith and which cooperates with the reservoir body to form a part of the stove assembly, the inner portion of the reservoir being provided with a removable cover having certain parts associated therewith forming the second part of the stove assembly. 30 denotesthe outer wall, 31 the bottom wall and 33 the inner tubular wall of an annular oil receptacle, the tubular wall 33 being united to the bottom 31 in any approved manner and being shown as provided with an outwardly projecting flange 34' (which may be conveniently formed by doubling the metal upon itself) and preferably having its upper end extending con-- siderably above the outer wall of the reservoir and contracted inwardly, as shown at 35. 36 denotes a cover section ,for the ex: terior portion of the reservoir, this cover section being shown as rigidly connected with the top of the outer wall 30. This cover section is shown as provided with a suitable number of angular straps the bottoms of which may be 'fitted within depressions 37 in said cover, the upwardly'and inwardly projecting portions 38 of the straps serving to support a frusto-conical hood 39 constituting a shield extending above the tops of the commingling tubes. The cover section 36, except for its rigid connectlon with the wall 30, is substantially identical with the cover 13 of the preceding modification. Inside of the straps 38 it is provided with an upwardly projecting ring 'orcorrugation 36 and at the inner end of the corrugation with a cylindrical wall 40 and a substantially horizontal ledge 41. The outer wick tube 42 in this case, however, is shown as integral with the cover section 36. This wick tube extends downwardly to the bottom 31 of the reservoir and is provided adjacent to such bottom with a suitablenumber of openings 43 establishing communication between the inner and the outer portions of the reservoir-in the same manner as the apertures 9 in the preceding modification. Seated within the cylindrical wall 40 and upon the horizontal ledge 41 is an outer perforated commingling tube 44. 45 denotes a hood having a handle 46, said hood cor esponding to the hood 29 in the preceding modification and serving the same purposes as the said hood. If desired, the cover section 36 may be provided with a filling connection 47 having a cap 48, the parts being of ordinary construction. 49 denotes the inner wick tube. When in operative relation to the outer wick tube, this inner wick tube preferably terminates a considerable distance above the bottom of the reservoir. It is preferably flared inwardly at its bottom, as shown at 50, and the bottom of the flaring skirt thus formed is adapted to slide upon the tube 33 and to be supported on the ledge 34. The inner tube preferably extends somewhat above the upper tube and is shown as provided with outwardly projecting fingers 52 which are adapted to overhang the wick space provided between said tubes. 53 denotes an annular diaphragm having its inner peripheral portion flanged upwardly, as shown at 54, and adapted to sleeve upon the upper end of'the tube 33, the upper end of said tube being deflected inwardly at 35 to facilitate the application of the parts 51 and 53 to the tube. The outer edge of the diaphragm 53 is projected downwardly and out-' wardly at 55 thence downwardly to form a short cylindrical wall L56 thence inwardly to provide a horizontal ledge 57 and thence downwardly as shown at 58, the part 58 providing means whereby the inner wick tube 49 may be secured to the diaphragm, as by peening together the overlapp ng metal parts. 59 denotes a perforated inner commingling tube which is shown as entending somewhat above the outer commmgling tube and which is provided at its upper end with a cap 60 and, intermediate of the top and bottom, with a diaphragm 61 which may be provided with an annular series of perforations 62 located slightly outside of the top of the tube 33. Within the space provided between the wick tubes 42 and 49 is the wick 63. 64 denotes a wick bandwhich surrounds the bottom of the wickbeing carried in'the,

space between the outer wick tube and the central tube 33. If desired, the bottom of the inner commingling tube may besecured to the cylindrical wall 56, as by peening, and the cap 60 may be handle or hook whereby the assembly comprising the parts 49 to 66 inclusive may be conveniently removed and replaced.

The operation of the stove-shown'in Figs.

3 and 4 is substantially the same as that shown in the preceding views. When it is desired to light the wick, a hydrocarbon igniter may be employed or the assembly comprising the parts 4966 may be lifted until the top of the wick is exposed above the outer commin ling tube, when it may be ignited by a ma ch or a torch. In this modification, as well as in the preceding modification, no 1 special wick operating means are able by hand toward and from the stops 22 and 52. If desired, the reservoir may be filled when the inner assembly is removed (the tube 44 being preferably removable to facilitate /the operation) through the filling connection 47. As is the case with the preceding modification, the bottom of the reservoir will be supported in such manner .as-to permit the flow of air to the tube 33, this purpose which legs may be identicalwith those shown in the preceding modification. Also the upper portion of the inner wick tube may be provided with a series of erforations ions 8.

In Figs/5 and 6 there is shown a still further modification of the invention which is similar to that shown in Figs. 3 and 4 except that the outer annular portion of the 11 reservoir is omitted .and a modified form of support is provided for the reservoir. Some of the details of construction of the inner wick tube assembly have been slightly modified in this embodiment of the invention. 120

In these views, 68 denotes the outer wall of the reservoir and 69 the bottom wall, the bottom wall being connected at its central portion in any suitable manner to a vertical tube 70 constituting the inner wall of the 1% reservoir, the reservoir being an annular reservoir. A. perforated supporting ring 71 is shown as extending downwardly from the outer wall 68 and serving to support the reservoir and to provide an air supply there: 180

At its bottom, the band is 70 provided with a suitable 80 provided, the wick beingv adjustor it may be filled and legs 67 are provided for 5 49 similar to the perfora- 11 jecting fingers 8 L 4 end bent downwardly,

' beneath to the central tube 70. At its upper end, the wall 68 is flared outwardly, as

shown at 72, to form a horizontal ledge, thence upwardly, as shown at 73, to form a cylindrical wall, thence outwardly and downwardly as shown at 74, to provide a corrugation, thence outwardly as shown at 75 and downwardly as shown at 76, and again outwardly, as shown at 77, the extreme outer edge being Wired, as shown at 78. In this construction, the outer wall 68 of. the reservoir constitutes the outer wick tube and the outer commingling tube 79 is seated (preferably removably) within the cylindrical wall 73 and upon Outside of the corrugations 74, angular straps may be supported in the same manner as in the two preceding modifications of the invention, the upwardly extending portions 80 of said straps serving to support the hood or shield 81where such hood or shield is desirable. The parts 76 and 77 serve to support a hood 82 having a handle 83 and serving as an extinguisher and protecting device for the burner. 84 denotes the inner wick tube which, as is the case with the preceding modification, is provided with a downwardly and inwardlv projecting annulus 85. This annulus may form a support for a plurality of rods 86 which may be secured thereto in any suitable manner and project downwardly and inwardly within the bottom of the inner wick tube and have their ends bent substantially horizontal, as

shown at 87, said rods constituting a stop to.

limit the downward movement of the inner wick tube with respect to the reservoir and to position the wick tube with respect to said' The reservoir and the outer wick tube. wick tube 84 preferably extends somewhat above the outer wick tube and is preferably provided with a plurality ofoutwardly prowhich are adapted to engage and serve as a stop for the wick. 88

.denotes an annular diaphragm which is mounted within the inner wlck tube and which has at, its inner end a downwardly directed sleeve 89 adapted to fit within the upper end of the tube 70, thereby to center the inner wick tube and the associated parts. The diaphragm 88 is bent downwardly and outwardly, as shown at 90 then downwardly (as shown at 91) to form a cylindrical wall then inwardly (as shown at 92) to form a horizontal ledge and has its extreme outer as shown at 92*, to form' a cylindrical wall which may be secured to the inner wick tube 84: in any convenient manner. The wall 91 and ledge 92 form a seat for the inner commingling tube 93 which may, if desired, be secured to the wall 91, as by peening. At its upper end, the inner commingling tube 93 is shown as extending above the outer commingling tube 79 and is shown as provided with a cap 94:,

the ledge 72.

also with a diaphragm across and provided with perforations 96. 97 denotes the wick, which may be-provided with a wick band 98 similar to the wick band 64 in Fig. 3 and having the spring fingers 9'9 and its lower end deflected inwardly, as shown at 100, to form with the annular flange 85 a mouth or lower portion of the wick as the wick is raised and lowered, the bottom of the wick being located between the flange 100 and the central tube 7 O. The operation of the stove just described is similar to that of the stove in the preceding modification, except that it will be necessary to remove the inner wick tube assembly in order to fill the reservoir, the outer commingling tube being preferably removable to facilitate the operation. If desired, the cap for the inner commingling tube may be provided with a suitable hook or handle 94* whereby it may be raised and lowered and with it the innerwick tube, wick and wick band. The wick may be lighted in the same manner as in the preceding modification. The upper portion of the inner wick tube is shown as provided with perforations 849 similar to the perforations 8 and 49?.

In describing the three embodiments of my invention disclosed herein I have necessarily referred to details of construction; but I wish to beu'nderstood as not being limited thereby to such details except as such limitations may he claims hereto annexed and rendered necessary by the state of the prior art.

Having thus. described my inventiomwhat I claim is p 1. In a stove of the character described, the combination of areservoir having a vertical tube therethrough, a vertical wick tube interposed between the outer wall and the first mentioned tube, a removable cover section for one of the annular spaces provided by the outer wall of the reservoir and said tubes, a wick tube depending from said cover section and movable therewith, the wick tubes being spaced apart circumferentially and a wick betweensaid wick tubes and movable with the last mentioned wick tube. Y

2. In a stove of-the character described, the combination of a reservoir having a yertical tube therethrough, a tube interposed between the outer wall and the vertical tube, a removable cover section for one of the annular spaces provided by the outer wall of the reservoir and said tubes, a wick tube depending from said cover section and movable therewith, the wick tubes being spaced apart circumferentially and a wick between said wick tubes and movable with the last mentioned wick tube.

3.. In a stove of the character path for the included in the described, 13

. the combination of areservoir having a tube extending therethrough, a'wick tube interposed between the outer wall of the reservoir and the first mentioned tube, a cover section connected with said wick tube and the reservoir, a commingling tubesupported by said section, a removable cover section for the other portion of the reservoir, a wick tube connected to and depending from said removable cover section, a commingling tube supported by said removable cover section and projecting above the last mentioned wick tube, a wick adapted to be interposed in the space between the wick tubes, and

means adjustably supporting the wick from the movable wick tube.

4. In a stove of the character described, the combination of a reservoir having a tube extending therethrough, a wick tube interposed between the outerwall of the reservoir and the first mentioned tube, a cover section connected with said Wick tube, a commingling tube extending above said wick tube, a removable cover section for the other portion of the reservoir, a wicktube connected to and depending from said removable cover section, a oommingling tube projecting upwardly above the last mentioned wick tube, a wick adapted to be interposed ml in the space between the wick tubes, and

means supporting the wick from the movable wick tube.

5. In an oil stove, the combination of a reservoir, an inner wick tube therein, a

cover for 'the space within said tube, an

inner perforated commingling tube extending above the inner wick tube, an outer wick tube, and a perforated commingling tube extending upwardly from the outer f Wick tube, the upper portion of the inner wick tube being perforated to admit vapors into the wick space.

6. In an oil stove, the combination of a reservoir, an inner wick tube therein, a cover for the space within said tube, andan outer wick tube, theupper portion of the inner wick tube being perforated to admit vapors into the wick space.

7. In an oil stove, the combination of. a reservoir having an outer wall, an inner wall, and'a bottom Wall forming an annular receptacle, an annular cover section for part of the reservoir connected with one of said walls, a wick tube depending from said cover section, an annular cover section for another portion of the reservoir, a wick .tube connected to and depending from the latter cover section, a 'wick adjustable in the space between said tubes and operatively supported by the last mentioned wick tube, there being a passageway near the bottom of the first mentioned wick tube whereby the level of the liquid fuel in the adjacent reservoir sections may be equalized. 8. In an oil stove, the combination of a reservoir having an outer wall and an inner wall form ng an annular receptacle, a wick tube forming with one of sa1d walls an annular reservoir section, an annular cover the combination of a reservoir having an outer Wall, a bottom wall and an inner wall forming an annular receptacle, a cover section connected with one of said walls, a wick Eube depending from said cover section, an nnular cover section for the other portion of the reservoir, a wick tube dependingifrom the last mentioned cover section and forming a wick space with the first mentioned wick tube, commingl'i-ng tubes extending upat wardly from said wick, tubes and supported respectively by said cover sections, one of said wick tubes having a stop device adapted to limit the elevation of the wick, and a wick band in the wick space and cooperating with the wick to retain the same in engagement with one of the wick tubes.

10. In a stove of the character described, the combination of a reservoir, a wick tube within said reservoir, a cover section connected with said tube, a removable cover section for the other portion of the reservoir,

a Wick tube depending from the last mentioned cover section and forming a wick space with the first mentioned wick tube, 3 and commin ling tubes extending upwardly from said wick tubes and supported respectively by said cover sections, there being a passageway near thebottom of the first mentioned wick tube whereby the liquid fuel may be maintained at the same level on opposite sides thereof.

' 11. In a stove of the character described,

the combination of a reservoir having an inner, an outer, and a bottom wall forming an annular receptacle, an annular cover section connected with one of said walls and having a wick tube depending therefrom,

an annular removable cover section for the other section of the reservoir and having a wick tube depending therefrom and forming a wickspace with the first mentioned Wick tube, the upper end' of the last mentioned wick tube having a stop for the wick, commingling tubes extending above said wick 12 tubes and supported by the cover sections respectively, a wick in the space between said wick tubes, and a wick band pressing the wick frictionally against the wick tube which depends from the removable section, 1301 there being a passagewa-yprovided between the two reservoir sections whereby a liquid level may be maintained therein.

12. In a stove of the character described,

the combination of a reservoir having a vertical tube extending therethrough, a wick tube surrounding the first mentioned tube, a cover extending between the said tubes, a wick tube surrounding the first mentioned tube and forming a wick space therewith, a wick in said space, and commingling tubes projecting upwardly above said wick tubes.

13. In a stove of the character described, the combination of a reservoir having a tube extending therethrough, a wick tube surrounding the first mentioned tube, a cover for the space between said tubes, a wick tube the reservo1r BfWlCk tube and a fixed cover section connected with said wick tube, a removable cover section for the outer section holding said wick in engagement top of the inner wall, a wick tube depending the reservoir, an outer armeoe of the reservoir, a wick tube connected to the outer cover section and dependingtherefrom and'forming an annular space with the first mentioned wick tube and having a stop device to limit the elevation of the wick, a wick within the wick space, and means for with the last mentioned wick tube.

15. In anoil stove, the combination of a reservoir having an outer wall and a central vertical tube constituting an inner wall, a cover section extending outwardly from the from said cover section and dividing the reservoir into two annular sections, a remov-v able cover for the outer annular section of wick tube depending therefrom and having a stop device for limiting the elevation of the wick, a wick for the space between the ,wick' tubes, a. wick band within the wick and adapted to retain the same in frictional engagement with the outer wick tube, and comminglingtubes projecting respectively from the cover secetions 55 and above the ends of the wick tubes.

In testimony whereof, I hereunto affix my signature in the presence of two witnesses. LEE S. CHADWICK. Witnesses:

W. E. SHErrARo, D. S. SMITH.

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