USRE10849E - Vapor-stove - Google Patents

Description

' '2- Sheets-$110 1. M. L. HULL.

VAPOR STOVE. Reissued July 12., 1887..

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L L U H L M VAPOR STOVE.

No 10 849. Rveissued July 12, 1887.

UNITED STATES PAT NT OFFICE...

MARTIN L. HULL, OFOLEVELAND, OHIO.

VAPO R-STOV E.

SPECIFICATION forming part of Reissued Letters Patent No. 10,949, dated July 12, 1887. Original No. 343,121, dated June 1, 1886. Application for reissue filed April 30, 1887. Serial No. 236,706.

To all whom. it may concern:

Be it known that I, MARTIN L. I-IULL, of Cleveland, in the county of Ouyahoga and State of Ohio, have invented a certain new and Improved VaporSt'ove; and I do hereby declare that the following 1s a full and complete description thereof.

The special purpose of the stove above referred to is for burning ordinary petroleumoil vaporized for that purpose by the peculiar construction of the stove described and set forth in the following specification, and shown in the accompanying drawings, making a part of the same, in which Figure I represents a side view of the improved stove, the top of which is partly removed that the mechanism under it may be seen. Fig. .11 shows an end view of the stove, one of thelegs being removed that the working parts may be fully seen. The rest of the figures (nine in number) are detached sections, to which reference will be made.

Like letters of reference denotelike parts in the views presented.

The frame is or may be like the frame of an ordinary gasoline-stove, and provided with pot-holders and grates in the same way.

B, Figs. I and VI, is'the vapor-generator, having an annular chamber, a, Fig. VIII. On the top of the generator B (but having no direct communication therewith) is placed a com mingling-chamber, 0. Within the generator B is secured by the screws a", Figs. VIII and IX, an auxiliary commingling tube or chamber, D, through which and through the central opening in the generator B passes a commingling induction vaportube, D, which is much smaller in diameter than the central opening in the generator B,thereby causing an annular space, 11, round the com mingling-tube, as seen in Figs. VIII and IX, thereby putting the commingling-chamber Oand the auxiliary comminglingchamber D in communication one with the other, forming one continuous united chamber extending from above to the under side of the generator, as shown in the drawings.

It will be observed in Figs. VI and VIII that the lower series of perforations in the commingling chamber C are in. close prox- E, Figs. I, III, and IX, is an Oilsupply pipe 7 opening into the generator, the lower end of the pipe terminating in a valve-casing, F, in which is a plug-valve, 2', similar to the valve h in Fig. II, and of which G is the stem for operating it. By means of a pipe, H, the supply-pipe and theval've-casing F are put in communication with an oil-can, I, for supplying the generator with oil. Immediately below the generator, and in alignment with the commingling-tube D, Fig. VIII,is a vaportube, K, having within it a needle-valve and stem, Figs. I and V. The upper end of the tube K is contracted to a smalljet-orifice. In the arm L of said tube K is a plug-valve, a", Fig. I, similar to the valve h in Fig. II, and of which M is the stem.

The arm L, above mentioned, is put in communication with the generator by a tube, N, a continuation of thetnbular arm L, as seen in Figs. I, II, and VI, and thereby vapor is conveyed from the generator to the vaportube K, from which on opening the valve a it escapes into the com mingling tube D, through which it passes into the commingling-chamber O, and down the annular space 1) into the auxiliary commingling-chamber under the generator, and is then burned, as hereinafter manifest.

The commingling-chamber O in its commu nication with the generator forms aburncr, and is supplied with vapor from said generator. On one side of said burner is a pipe, 0. Practically the pipe is oflarge size. Abont one inch and a quarterin diameter (more or less) is found by experience to be necessary for a successful working of the stove. Said pipe 0 is arranged in alignment with the needlevalve 12 in the casing P, and of which a, Fig. I, is the stem for manipulating it. The end of the pipe 0 is open and in close proximity to the needle-valve b.

It will be noticed in the drawings that a portion of the diameter of said pipe is cut away, and that the portion left projects over onto the valve-casing I, to which it is made fast for 5 securing that end of the pipe in place, and

also to form a hood or covering for the needlevalve to protect the vapor issuing therefrom from becoming ignited by the flame-jets issuing from the auxiliary commingling-chamber,

IO hereinafter further noticed. By this portion which is left being subjected to theflames from thejets in the auxiliary comminglingchamber the pipe 0 is so heated that the volatile fluids are kept from condensing, especially when the heavier oils are used for fuel. The opposite end of the pipe 0 is suspended from the under' sideof the top of the stove by a hanger, c,and extends to apot-holder or grate, and there terminates in a vapor-burner cou- 2: sisting of a cup, Q, provided with a wide face covered by a finely-perforated plate or disk, R, which is made of saw blade steel having a flat surface, and its flange made plain and to fit snugly over the cup Q, Figs. 1 and III, which forms the subject-matter of another claim in a pending application filed by me November 3, 1884. The needle-valve casing P, above alluded to, is put in communication with the generator by a tube, S, Figs. II and III, also shown in Figs. VI and IX, by which the said burner Q is supplied with vapor. On the opposite side of the generatoris arranged in-like' manner a similar pipe, T, which is also secured by a hanger to the top of the stove, and 3 5 the end thereof extends back to another potholder or grate, and there terminates in a vapor-burner, U, a duplicate of the burner Q above described. Said pipe Tis in alignment with a needlevalve in the valve-casing P. 3 The valve and easing are duplicates of the valve btand casing P, above described, and of which b is the stem for operating it. The casing P and valve are put in communication wit-h the generatorby a tube, S, a duplicate 5 of the tube S on the opposite side of the generator.

A is an oil-lamp differing from ordinary oil-lamps mainly in being so constructed as to adapt it to be used in connection with the stove, for a purpose presently shown. Briefly, the lamp consists of the oil-fount B, wick-tube O, and the roller D", Fig. I, for raising and lowering the wick.

E is the chimney, hinged at F to the oil- 5 fount B, that it may be turned from over the wick for access thereto. Said chimney is of metal, and has in one side a slot, 11, adapted to receive the tubular arm L when the lamp is placed in position for practical use, as shown in Figs. I and II. In the side of the chimney is an opening, 0, covered with mica, for ob-l serving the interior of the lamp.

, It will be noticed that the lamp stands on a shelf, G, and that the shelf is provided with apair of ears, 1 and 2, through which passes a rod, H, whereon the ears are free to slide and turn. The shelf is supported in a h0ri zontal position bya clutch, 1, Figs. I and IV. Section J of the clutch is fixed to the rod, whereas the ear 2 (the corresponding section of the clutch) is free to slide and turn on the rod. Each section of the clutch is a semicircular lug projecting along the rod toward the other, as shown in Fig. IV. The two sections of the clutch when brought together lap onto each other, as seen in Fig. I, thereby locking the shelf in a horizontal position, as seen in Fig. II. The sections of the clutch when separated by sliding the shelf along on the rod, as seen in Fig. IV, allow the shelf to turn lamp from the shelf, or for placing it thereon, as the case may be.

The oil-suppl y can I is detachabl y connected to the pipe H bya coupling, a, Fig. I. Below the above-said coupling is a'filter consisting of a cylindrical shell,.B, Fig. II, filled with cotton, or with any other suitable material, connecting with the pipe H, which is held in a vertical position by a hook, K, Fig. VII, on the corner of the top of the stove-frame A. The hook is adapted to fit partly round the--pipe. On the inner side of the hook is a recess forming a shoulder, c. Across from said shoulder is a corresponding shoulder, a. Between the two shoulders and the pipe is inserted a keyblock, N, which may be slightly tapering, that it may wedge in between the shoulders to prevent its falling out. The block is provided with agroove adapted to fit the side of the pipe, as seen in Fig. VII.

to the pipe, against which it is forced, thereby binding the pipe fast in the hook, as seen in the drawings.

As hereinbefore mentioned, the above-described stove is intended mainly for burning heavy hydrocarbon oil, which requires more heat and time to vaporize 'it than the lighter product of petroleum, (gasoline) Therefore when the heavy oil is used a lamp is necessary for starting the burner by heating up the generator, which when fully heated will vaporize the oil rapidly and in sufficient quantity to supply the burners with vapor without a continued use of the lamp.

For the above-specified purpose oil from the can I is conducted by the pipe H down to the pipe E and valve i, which on being opened permits oil to pass therefrom to the generator. The lamp is now or it may be previously placed in position under the generator, as shown in Figs. I and II, and lighted, the heat from which, being applied directly under the generator, and also enveloping the tubular oil in the generator. The vapor passes from the generator through the tube N to the arm or valve-casingL. The valve a being opened,

the vapor flows therefrom through the tube K into the commingling induction-tube D, Figs.

downward, as indicated by the dotted line rin Fig. IV, for the purpose of removing the arm L and its appendages, soon vaporizes the f is a set-screw passing through the block v II, VI, and VIII, thence upward into the in finejets of blue flame.

commingling-chamber 'C,and issues therefrom throughthe perforations g and g, and burns At the same time the vapor passes down around the commingling-tube D to the auxiliary comminglingchamber 1) below the generator, and issues therefrom through the perforations 7c, Fig. VI, in blue jets of flame.

It will be noticed that the perforations g in the commingling chamber or cap 0 are close to the surface of the generator, so that the ignited jets of vapor issuing therefrom impinge upon and sweep over its broad upper surface,- also, the perforations in the auxiliary chamber b being close to the under side of the generator, the flame-jets issuing therefrom sweep over and in contact with the under side of the generator. The two jets of flame impinging upon the upper and lower sides ofthe generator from the commingling-chambers G and D, respectively, and the two chambers being in open relation one with the other, (forming a continuous combustioirchamber,) a powerful heat is produced, which completely vaporizes the heavy oil for supplying the burners without further aid of the lamp,which may now be removed or extinguished, it being only used for the initial vaporizing of the oil, as above said.

A portion of the vapor, generated as above described, is conveyed from the generator to the burner Q through the pipe 0 on opening the valve 1). The vapor as it issues from the foraminous surface of the burner burns in numerous fine jets, which commingle and form a compact body of flame, but which cannot burn back in the head of the burner by virtue of the well-known principle of Davys safety' lamp. Substantially in the same way vapor ,is conveyed from thegenerator to the burner U through the pipe T on opening its valve in the casing P, and so on to other burners that may be used in connection with the stove, and which may be more or less in number.

To increase the working capacity of the stove without extending and enlarging the same, a pot-holder or grateis made in the catchpan B, and provided with a vapor-burner, 0, similar to the burner U. The burner 0" is put in communication with the generator by a pipe, D, connected to the pipes S or S, which for that purpose are extended so far as to make the connection and provide a casing for' astop valve, h, of which 10 is the stem,whereby the valve is operated for regulating the flow of vapor to the burner, in connection with which may be used an oven, E, or other an. iicle of culinary use.

In the drawings the generator is shown as located at one end of the stove-frame and the burners on one side of the generator, excepting the initial one in connection with the generator.

.Although the above-described stove is intended for burning heavy coal-oil, a lighter oil may be used, if sorequired; but in that case the auxiliary heating-chamber is used without having as many perforations as in the case where the heavy oils are used. The generator, when once started, will vaporize the light grade of. oil rapidly and sufficiently to supply the burners without so many perforations in the auxiliary heating-chamber, as aforesaid.

For the purpose of preventing the vapor from rebounding on entering the large commingling-tubes, a short funnel, 0, may be attached to the induction end of the said tubes, through which funnels the vapor passes into said tubes, thus drawing in more air with the vapor, thereby producing better combustion than otherwise obtained. Said funnel is shown in Fig. X within the tube 0. I

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination, with an annular generator having a supply pipe leading thereto,

ofa cap supported thereon, ,having perforations close to the top of the generator, an auxiliary tube within the annular generator, extending below the same and having perforations close to the bottom of the generator, a mixing-tube within the auxiliary tube, and a pipe for conveying vapor from the generator to the mixing-tube, substantially as and for the purpose described.

.2. The combination, withthe frame of a vaporstove and a vapor-generator supported by said frame, located near the end thereof and having jet-orifice pipes, of mixing-tubes unequal in length extending from said jet-orifice pipes-in substantially the same direction, and burners connected to said tubes, the burner on the shorter tube being located close to the longer tube, so as to heat the vapor therein. I

3. The combination, with an annular generator having an inlet-pipe for oil on one side and escape-pipes for vapor on the other, of mixing-tubes communicating with said escape-pipes, each cut away on one side. to admit air, a perforated burner-cap supported on the generator and open below, an auxiliary tube extending below the same and having perforations close to the escape-pipes, and a pipe for conveying vapor from the generator, extending from the generator to the under side of the burner-cap, substantially as described.

4. In vapor-burning stoves, the combina- IOO tion of the stove-frame, an oven placed beneath the top of the frame, a self-generating vapor-burner, the vapor-suppl y pipe from the generator, and the burner under the oven, substantially as and for the purpose described.

5. In a vapor-stove, the combination of the stoveframe, a generating-burner at the top of the stove, an oven located upon the lower part of the frame, a lower non-generating burner for said oven, a tube for vapor and air extending from the upper to the lower burner, and

ering mixed air and vapor to the upper end an injecting device supplied with vapor from In testimony whereof I affix my signaturein the generator of the upper burner for delivpresence of two witnesses.

of said tube.

6. In combination with the stove-top and pipe H, the shouldered hook K, key-block VVituesses: N, and set-screw, substantially as and for the T. E. EGBERT, purppse specified. MAGGIE B. EGBERT.

MARTIN L. HULL.

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