(No Model.) .3 sheets-sheet 1.
NQ. 521,128. Patented June 5, 1894.
(No Model.) l 3 SAheets--Sheet 2.
VAPORSTOVB. Nb.521,128. Patented June 5,1894.
NWTNESSES INYENTOR- NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN v.
ATTORNEY (No Model.) 3 Sheets-Sheet 3.
H. RUPPEL. VAPOR sTovE.
. 310,521,128. I Padzentd June 5.1894.
YHE NAncNAL LrmocmAPHma coMPANY.
WASHINGTON. o. 1:.
I UNITED STATEs PATENT OFFICE.
HENRY EUPPEL, or CLEVELAND, oHIo.l
VAPOR- sPEcIrIcArioNfrmg'pm of. Letters Petegem. V521,128, dated' June 5, 18,94.
Application sied october?, 189e; sereine. 487.431. (Noma.)
To a/ZZk whom t mag/concern.-
zen of Athe United States, residing at Cleveas they occur in the series, each burner .be-j
land, in the county of Cuyahoga and State of' Ohio, have invented certain new and useful Improvements in Vapor-Stoves; and I do hereby declare that the following is afull, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.
My invention relates to vapor stoves, and the invention consists of a vapor stove having the construction, combination and opera-v tion of parts substantially as shown and de.
scribed and particularly pointed out in the claims. A
is anV end elevation thereof.
4 is a plan view thereof.- Fig. o is a longi` tudinal sectional elevation of -the burner and its mechanism on line 93,00, Fig. 3. Figs. 6, 7, 8 and 9 are detail views of parts of the burner,allashereinaftermorefullydescribed. Fig. 10 is a vertical central sectional elevation of the oil tank.
A represents the stove proper, which may be a one, two, three or four burner, according to the size wanted. In so far as the frame alone is concerned I make no claim to novelty, and I may, therefore, construct this frame and the top plate B thereof according to any fashion or design or style that mayf for the time being be preferred.
C representstheoil or iuid tank, and D l the supply pipe which extends from the tankv along the end of the burner, and thence alongV the front thereof to supply oil to the burnersj ing an individual burner independent of the others, and all constructed and operating in the same manner. Hence, the description of one of the burners serves for the entire series, if there be two or more. It will be observed that the tank is removable from its holder, which has the supply tube D attached thereto, and when exhausted is lifted out and taken away to the oil supply can to be lled, just as would be done with a lamp. This, however, is incidental and in itself is not new.
A certain amount of` pressure has been found absolutely essential to gasoline or like lvapor burner'in order to maintain the neces- Be it known that I, HENRY RUPPEL, a citi-y sary Viowof vapor and to keep,l up a steady strong' flame, and among the ways of producing andpmaintaining such pressure have been the elevated tank which' gavegravity pressure or artificial pressure, such compressed air, or the pressure of the vapor by gravity' in a comparatively long high tube. The objections to each and all of these methods are well-known and need not be enumerated here to showthat they should be overcome and remedied.
In the present construction I have overcome the necessity,ofjintroducing pressure by outside and expensive or objectionable y means and am enabled to maintain all the In the accompanying drawings, Figure l is; a perspectiveelevation of a vapor stove in' which my invention isv contained, and Fig. ,2, Fig.` 3 is' aside elevation of the burner mechanism, and
needed pressure and supply of vapor with air in proper proportions for i perfect and satisfactory combustion without anyof the means just enumerated. IY have, therefore, practically done away with the elevated tank in any of the old styles, and have avoided the introduction of artificial pressure and of other means outsideof the burner for maintaining pressure, and this I have accomplished by means of the peculiar construction of burner `which I shall now describe.
This burner has at the basis of the principle upon which itis constructed, means for expanding the vapor and air after passing.
into the burner and consisting in this instance of a mixing chamber or drum F,which is entirely closed excepting as itis penetrated by the'air and vapor supply tube --2, and
of course at its top whereitiis'eovered by the burner cap -3-.
This cap'niay be of any 'suitable construction, but" isfshown here as havinga series of transve'rseslots extending entirely across the cap and'of 'such size and space apart as to best serve their purpose. It
will be noticed thatv the tube .'-2- passes almost entirely across the drumRgand that the commingled vapor andair therein, after entering in a cool state, is exposed-to the radiated heat of the burner land thereby expanded so as to produce an outward pressure through the burner cap. This promotes the steadyv and even flow of vapor tothe tiame which is necessary to keep up the supply, and by having a large chambenas shown, filled-with the vapor, the supply is made abundant and the pressure held uniform. It will be understood that the drum F is vapor tight about its sides and bottom except through tube -2-, and
the ducts -l2--, which are exposedl to the ,course the details of these parts need not be `rigidly adhered to in constructing the burner, but may be changed and varied more or less` without departing from the invention. After initial starting and after the burner has' when the burner is under way and in a good generating condition, as it is in a few minutes after initial lighting, the vapor which issues through the needle oriiice -4-, controlled by the valve -5-, is injected through the said tube into the drum F. This injection of Vapor entrails air, so that the admixture of air and vapor in the drum is such as to produce and sustain a beautiful blue flame and afford that perfect combustion which is so much desired. Obviously, there is a healthy reciprocal action between the draft of the burner which draws and consumes the accumulating vaporand air from the drum and the supply of these elements through tube -2-, but intermediate of these is the expansion of the vapor and air under the effect of the heat radiations from the burner which gives the steady and constant pressure that is necessary to maintain a uniform and ever reliable liame. It will be noticed that the normal conditions of the burner are certain to be maintained by this construction, because every part can be relied upon to do its work uniniiuenced by surroundings. Thus, with the valve -5-- open to a certain ascertained point and the burner at work a given and even supply of vapor will liow and auniform quantity of air will pass into the drum with the vapor. Then, once in the drum, the conditions there are unchangeable and the flame cannot help being uniformly fed alike to all parts of the burner cap.
Two channels or ducts are shown for the oil, one leading to theinitial burner and the other to the burner proper. The supply pipe D extends across one end and along the front of the stove, and the initial burner cap G has the duct --7m leading thereto and controlled by valve -S- which is shown here as in vertical position behind the head -9- ot the valve -5-, so as to be protected from accidental movement. Over the initial lighting cup or pan G is a swinging perforated hood or cover Il, which is raised to introduce a match for lighting and is then immediately closed. The initial flame is thus protected from air currents and can be kept burning very 10W, it desired, or turned out after the burner is started. The valve --8- hasa curved arm --10` which engages fixed stops to limit its rotation, so that it cannot be opened beyond a certain point and only enough to serve the purpose. When started by applying a match, the burner can be left indefinitely and with perfect safety. Then if the burner is to be used the valve 5 is turned and the burner is automatically lighted from the initial flame. The pipe -llconnects with the supply pipe D and heat in the initial burner chamber. Ot
become heated the oil passages are heated sullieiently to produce vaporization of the oil by means of heat from the main burner. To promote this result I form a downward lip -13- on the burner cap opposite the inner end of the pipe -l1-, and a shield i4-- over said lip, as plainlyV seen in several iigures.
It will be noticed as a distinguishing feature of this stove that the oil is delivered practically direct from the tank to the burner by the most simple construction possible and without the intervention of any mechanism or means whatever to alter or affect the transmission of the oil except the exposure of the oil duct to the heat of the burner and the pipe for mixing the air and vapor. Otherwise the operation is direct and immediate from the oil tank to the burner. There is no intermediateprocess and mechanism for conversion and commiugling; no artificially applied pressure, and no unsightly elevated tank with its attendant dangers and inconveniences. All these things are obviated and overcome and a sim plc direct structure takes their place.
It will further be noticed that although the oil tank is located somewhat above the level of the point ofthe oil or vapor delivery ofthe burner, there is practically no pressure present by reason of this somewhat higher elevation, because the oil is really contained in the inner removable tank C', and the valve mechanism connected with this inner tank is such that only a very limited flow of oil is permitted in the outer tank C at any time, the highest level to which the oil rises in the outer tank being indicated by the line c, c. This makes the operation wholly different from what it would be if a full tank of oil were in open communication and pressure upon the supply pipe D.
The details of the parts associated with the burner and with the initial heating mechanism are shown in Figs. 5 to S. In Fig. S I show an apron -lt-- which is cast inthe same part with the cup G, and is bolted or otherwise fastened to the drum If, as seen in Figs. 2 and 4.-. This apron has an opening H15- for the passage of the vapor jet -4;-, which carries the jet point outside of the apron. By this construction I avoid any possible lighting from the initial chamber tothe vapor jet, and thereby protect the jet orifice and the flow of vapor from ignition. Above this apron is shown a curved perforated plate lG- which protects the rear of the initial lighting chamber. It the initial ilame be lighted and unlighted vapor escapes from the burner drum through the burner cap, a portion of the vapor will roll down between the lip 13- and the shield -l4 into the ignition chamber and be lighted and thereby .light the burner.
Having thus described my inventiolnwhat I claim as new, and desire to secure by Letters Patent, ism- 1. A vapor stove in which pressure in the oil supply pipe is avoided, comprising a lowdown fluid-supply tank, an expansion chamber having a burner cap and an induction tube extending across the center of said cham- Aber, a shield for the induction tube extending down from the surface of the expansion chamber across the entrance to said tube and apart therefrom to admit air and prevent escape and ignition ofvapor from about said entrance, an initial burner arranged wholly outside of said shield and separated from the expansion chamber thereby, the fluid supply pipe leading from the fluid tank, the vaporcontrolling valve extending through the said shield immediately in front of the entrance to the induction tube, and a separate valve to control the liow of fluid to the initial burner, the combination being and operating, substantially as described.
2. In a vapor stove, a fluid-supply tank having its outlet substantially on a plane with the top of the stove and adapted to relieve the fluid-supply pipe leading to the burner from the head or pressure of the fluid in the tank, in combination with the burner having an expansion drum or chamber closed at its bottom and sides and provided with an induction tube extending inward across its center` from one side nearly to the other and about midway of the height of the chamber, a shield for said induction tube closed against the expansion chamber acrossl its top to prevent upward suction and draft across the mouth of said tube and extending down across the mouth of said tube and apart therefrom to permit a free inflow of air, a fluid supply-pipe leading from the bottom of the said fluid supply tank, and a valve projecting through said shield to control the flow of vapor from said pipe into said induction tube, substantially as set forth. v
3. In a vapor stove, an expansion chamber for the burner closed at its bottom and sides and having a burner cap across its top, and a vapor induction tube projecting into said chamber about midway. between the bottom and top thereof, a shield or apron overhanging the mouth of said vapor induction tube from above the sam'e and extending down directly in front thereof in a' plane substantially parallel to said opening, and an induction valve projecting through said shield or apron, substantially as described.
4. In a vapor stove, an expansion chamber for the burner closed at its bottom and sides and having aburner cap across its top, a vapor induction tube projecting into said chamber about midway between its top and bottom and open at both ends, a starting burner and means to supply the burning fluid thereto, an apron or shield for the induction tube closing against the expansion chamber above the induction tube and extending thence downwardly across the outer opening of said Y induction tube and distant therefrom, said apron or shield placed between said induction tube and the initial burner and wholly separating one from the other, substantially as described.
5. The combination of a low-down fluidsupply tank, a main burner, a drum on which said burner is mounted, a vapor induction tube leading into said drum at its side and extending almost across it, an initial burner, a vapor jet or nozzle supported by and above said initial burner and in line with the induction tube, a main fluid-supply tube 11 arranged within the influence of the heat from the main and initial burners and having pipes communicating with the vapor jet or nozzle, a main pipe extending from the tank to the supply tube, a branch pipe leading from the main pipe to the initial burner, a
controlling valve therein, and deflectors for conducting the flame of the initialburner to the main burner and for screening the vapor jet, substantially as described.
6. A vapor burner comprising the expansion chamber or drum F, induction tube 2 extending within said drum and almost across it, the main burner cap 3 arranged over the fdrum, the supplemental burner lip 13 at its side formed integral therewith, vaporizing chamber 11 located within the influence of 95 the heat from the burner, deflector plate 14 for the supplemental burner lip, pipes 12, 12, leading from opposite sides of said vaporizing chamber and communicating with. the main supply nozzle, the said nozzle arranged roo opposite the induction tube, and an initial burner, substantially as and for the purpose set forth.
7. The expansion drum F and main burner 3 thereon having the downward lip 13 at its 105 side formed integral therewith, combined with the pipe 11, shield 14, pipes 12, 12, leading from opposite sides of pipe 11, the main vapor supply jet or nozzle communicating with the said pipe, the initial burnerG havy1 to ing opening 15 to receive the main supply nozzle and the apron 14 formed integral with said burner, and a low-down fluid supply tank, substantially as and forthe purpose set forth.
8. The vaporizing pipe 11, deflector plate 14, pipes 12, 12, leading from opposite sides of pipe 11 and communicating with the main vapor supply jet or nozzle, and the said nozzle, combined with the expansion drum, main burner cap thereon, the vapor tube 2 ar- 12o ranged in said drum opposite said nozzle, the initial burner, the supplemental burner lip 13 and the low-down fluid supply, substantially as and for the purposes set forth.
Witness my hand to the foregoing specification.
HENRY RUPPEL. Witnesses:
H. T. FISHER, R. B. Mossa.