US255245A - Hydrocarbon-gas stove - Google Patents

Description

(No Model.) V A. M. BRAINARD.

HYDROGARBON GAS STOVE 7 No. 255,245. V Patented Mar.21,1882.

WTN I pk/EN E T j/gfgwpL M HYDROCARBON-GAS STO VE.

SPECIFICATION forming part of Letters Patent No. 255,245, dated March 21, 1882. Application filed March 11, 1881. (No model.)

To all whom it may concern:

- Be it known that I, ADELBERT M. BRAIN- ARD, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Hydrocarbon-Gas Stoves; and I do hereby declare that the following is a full, clear, and exact description thereof, reference beinghad to the accompanying drawing, and to the letters of reference marked thereon,which forms a part of this specification.

This invention relates to devices for generating and burning hydrocarbon gas or vapor in a so-called hydrocarbon-gas stove and it consists, first, in a special combination of the generator, main burner, andinitial generatorheater, forming, as here shown, a unitary structure; and, second, in the combination, with a generator of one burner in a hydrocarbon-gas stove, of a tube leading from said generator to another, burner, whereby a single generator may supply vapor to its own and also to one or more additional burners of the stove.

The nature of my invention will be hereinafter more fully and precisely set forth, and will also be more definitely pointed out in the appended claims.

The accompanying drawing shows a burner embodying mypresent invention in central vertical section.

B represents a dishing or concave metal circular plate supported in the stove-top, (not here shown 5) and F is a central metal cup depending from the plate B, in which cup are located the several parts of the burner to be described.

. Gr represents a pipe leading from the source of hydrocarbon supply; and G is a vertical tubular branch therefrom, which directly supplies the burner. The burner, as the term is here broadly employed, comprises a generator, an initial generator-heater, and aburnertube, (which latter is the tube from which the operative'flame is emitted,) with their connections and valves or cocks.

H is the generator, of annular form, arranged to ,surround and by its central passage, 0 to form a part of the burner-tube, which is designated as a whole by the letter O. Said tube also comprises the bottom enlarged part, 0, provided with openings 0 c for the admission of air, and the correspondingly-apertured slide or register by which the amount of air admitted at c c is regulated. At the top of the tube 0 other-openings, o c, are provided, also for the entrance of air, and vapor or gasis supplied to the burner-tube at its lower end by the tube H, leading from the generator H. By reason of the admission of air at c c thevapor let on in force ignites within the tube-top about opposite c c, and the flame emerges from the tube in a solid body at its open top.

Iis ahorizontal metal plate, of circular form, surrounding the burner-tube 0 a shortdistance beneath the generator H. It has a slightly dishing or cupped upper surface and an inner opening, I, preferably of considerable size, as shown. Said opening communicates with the dished surface of the plate through the annular slot i, and with the passage J within the stem Gr through the lateral passage i, closed by the screw pressure-cock I I Liquid hydro-- carbon being admitted to the surface of plate I by opening the cock 1 is ignited, and the flame thereof heats up the generator H above it preparatory to the admission of liquid to the latter for its vaporization and use in the main burner. Said plate I is-therefore called the initial generator-heater. Havingperformed its office of heating the generator H in the first instance, its supply may be cutoff by closing the cook 1 but, on the other hand, if desired, it may be still kept alight, since the passage t" is wholly independent of that leading to the generator H. l

The novel features of the devices above described or referred to have been set forth and claimed in another patent, for which application was filed of even date herewith. Only the special features of construction or combination are therefore claimed herein-namely, the annular form of the generator H, its arrange ment about the tube G, and its construction as forming a part of said tube, the combine. tion, with the parts so arranged, of the cup or shield F, made central as to the plate B, for the'purpose of, embracing the said parts, and certain special features in the construction of the plate I not elsewhere shown. Novel features not yet mentioned and not present in said other patent are also claimed herein.

The generator H, as here shown, consists of a horizontal circular base'plate, H and the 'IOO dome-plate C 1?] ate H has a central opening to admit the middle section of the tube 0, and a marginal annular upturned flange, k interiorl y threaded to receive and secure the domeplate. Said dome-plate consists of the two (lownwardly-projectin g annular flanges c and c and the upwardly projectingflange c. The outer flange, 0', screws to the flange h, and the innerflangem ,fitsclosely to plate H about its central opening. Flange 0 contains the openings 0 and forms the mouth of tube 0.

The initial heater plate or cup I surrounds the tube O loosely, and is upheld by the stem G, to which it is firmly secured. From the bottom of the chamber 1 a flange, i rises about the tube 0 to the height of the elevated edge of the plate 1, thereby preventing the liquid from escaping downward around said tube. When the plate I becomes heated the space I becomes a generating-chamber, and it a flame is here kept continually alight, gas or vapor only will rise through the passage 7?. As explained of the similar devices in said other patent, the surrounding shield l? protects a small flame at I from being blown out, and such a flame may therefore be constantly maintained. Such a constant flame at I will obviously keep the generator H hot, so that the main burner may at any instant be supplied with gas by simply opening the cock H By reason of the ignition of the vapor within the top of tube 0, as hereinbefore explained, the upper flange, c, of the dome-plate G" is exposed to great heat, and, being continuous with the walls of the generator-chamber, communicates its heat thereto. Said chamber, by its annular form and arrangement, may evidently be given considerable capacity, while by its construction and location as described it may be correspondingly heated. At the same time, by its arrangement below the flame it does not in the least interfere with such flame in its effect upon a superposed article being heated.

Having the advantages mentioned above as the result of its construction and arrangement with the burner-tube O, the generator II, it is found, may supply other burners than its own with vapor. For this purpose the tube T is shown as leading directly from the generator H, and as having the burner It provided with the support It for an article to be heated atits extremity. By means of the cock rvaporis let onto the burner R, which may be at any time instantly lighted when the main burneris in operation, or when the generator H is properly heated. In a domestic stove this provision is one of great convenience and economy, since one burner is often kept in almost constant use, while a second or a third may be only briefly and occasionally but at the same time urgently needed. As here shown, the tube T is jointed at t to turn horizontally. The burner B may therefore be folded out of the way beneath the stove-top when not in use, though of course it may be one of the fixed burners of the stove, standing permanently beneath a suitable hole in the stove-top.

By reason of the greater etficiency of the generator II when constructed and arranged as explained, hydrocarbon liquids of much heavier grades than have commonly been employed in this class of stoves may he vaporized and used with whatever advantage in safety there may be in the handling of such heavier grades by unskilled persons.

At k is seen a screw-plug, which stops a hole made in drilling the horizontal part of the passage h. If desired, this plug may be lengthened to form a pressure-cock stopping said passage h; or the tube II may be elsewhere provided with a stop-cock of any suitable construction. When the passage supplying gas to the main burner is thus fitted with a cock between the generating-chamber and the burning-point the tube '1, ora small corresponding tube leading from the generator, may be made to open beneath the generator or to direct its flame against the generator, so as to take the place of the heater I in keeping the generator hot. In that case the burner B would consist simply in the openend of the tube so arranged.

I am aware that an illuminating-burner has been supplied from a generator of a heatingburner, and also that a support for an article to be heated has been applied to an illuminating-burner of a house-lighting system. I do not therefore claim the elements of the following claim 4;, except as they are combined as described in and with a selfgenerating gasstove.

I claim as my invention- 1. In combination with the depressed plate B and central shield, 1 beneath said plate, the burner-tube 0, having an annular generator, H, about its upper end, and a generatorheater beneath the generator and within the shield. said generator and initial heater being suitably connected with the source of hydrocarbon supply, and, together with the shield F, arranged and operating substantially as described.

2. In the burner described, the annular generator H, composed of the base-plate l1 and the dome-plate 0 having the outer and inner flanges, c and 0 joined with the base'plate, and the upper flange, 0 forming the mouth of the burner-tube, substantially as described.

3. In the burnerdescribed, the combination, with the burner-tube O and supply'stem G, of the initial heater-cup I, having the chamber 1 and opening z" around the tube 0, said cup being supported and supplied from the stem G, and surrounding the tube 0 by the rising flange i substantially as described.

4. In a hydrocarbon-gas stove, the combination, with a main burner having a generator, of an additional burner, R, supported and supplied by a jointed tube leading from the main generator, and a support for an article stantially as described.

to be heated from said additionalburner, form- In testimony that I claim the foregoing as :0 ing part of the unitary stove structure, submy invention I aifix my signature in presence of two witnesses. 5. In combination with the burner described, comprising the central tube, 0, the generator ADELBERT M. BRAINARD. H, and the initial generator-heated, arranged as shown, the dished plate B and the cup F, Witnesses:

arranged to embrace the parts 0, H, and I, as M. E. DAYTON, set forth. W. G. ADAMS.

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