US384683A

US384683A - Gas-stove

Info

Publication number: US384683A
Authority: US
Publication date: 1888-06-19
Anticipated expiration: 1905-06-19

Description

(No Model.)

2 sham-sheet 1. A. S. DINSMORB.

GAS sTov.

Patented June 19, 1888.

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\ 2 Sheets-Sheet 2.

(No Model.)

` A. S. DINSMORE.-

GAS sTovE.

No. 384,683. l Patented June 19, 1888.

N. PETIRS. Pholzrlhognplwr. Washington. D. C.

NrTnn STATES' PATENT OFFICE.

ALFRED S. DiNSMoRE, or BoSToN, MASSACHUSETTS.

GAS-STOVE.

SPECIFICATION forming part of Letters Patent No. 384,683, dated June 19, 1888.

Application inea May 23, 1881'.

To @ZZ whom, it may concern:

Be it known that I, ALFRED S. DINSMORE, of Boston, county of Suffolk, State of Massachusetts, have invented an Improvement in GasStoves, of which the following description, in connection with the accompanying drawings, is a speciiication, like letters on the drawings representing like parts.

My invention, relating to gas-stoves, is embodied-in astove of the kind shownin Letters Patent No. 285,311, dated September 18, 1883.

r1`he object of the present invention is to facilitate the manipulation of the parts of the stove or burner and prevent possibility of said parts being improperly placed with relation to one another, as sometimes occurs in the construction shown iu the said patent.

The operative parts of the burner are substantially the same as shown in the patent referred to. The burner proper comprises a tube which receives a mixture of air and gas at its lower end, and is Surrounded at its upper end by a perforated Screen or chimney, in which the said mixture is consumed, and has above the said burner and chimney a cone or iiaring detlector having its apex project down into the chimney over the center of the burner.

It is essential that the burner, tube, and

chimney should be removable for the purpose of cleaning, and in the construction shown in the patent referred to the cone also has to be detachable and removable from the framework of the stove, as the burner can only be removed by'lifting it up through the space normally occupied by the cone.` From this construction it sometimes happens that the cone will be replaced in the wrong position,or with its apex upward, by persons who do not understand the principle of operation of the stove. rThis construction also necessitates that any device used above the stove proper-such, for example, as an oven or heating-drumshould be detachable from the stove proper, in order to afford access to the cone and burner. The present invention consists, partly, in the combination of a cone fixed or permanently attached to the framework, withthe burner and support therefor constructed to admit of the said burner being removed laterally from 5o beneath the cone.

The invention also consists in various details Serial No. 239,092. (No model.)

of construction of the stove, which will be hereinafter pointed out.

Figure 1 is a front elevation of a heating` stove embodying this invention; Fig. 2, a vertical section thereof; Fig. 3, a vertical section showing a modified construction Fig. et, a plan view of the stove proper, represented in Fig.

3 as seen with the drum le and iiue m m' reg moved; and Fig. 5, a plan view of the base 6o portion of the stove with the drum, cone, and burner removed.

The operative parts of a stove are supported on a base, a, having a platform, a', provided with an opening or recess, a?, (see Fig. 5,) to 63 receive the lower end of the burner-tube c, which extends down through the said opening, as shown in Fig. 2, and rests on a foot-piece,. d, connected by arms d with the platform c.

The burner proper is of substantially the 7o Same construction as shown in the patent before referred to, the tn be c surrounding the gas-jet b and being provided at its lower end with inletopenings 2 for the air to enter and mix with the gas, and being provided at its upper end with a foraminous covering or cap,

c', through which the mixed air and gas passes, and above which it burns. The upper end of the tube c is provided with a wide` iiange, e, that supports the perforated chimneyf, which 8o contributes to the combustion of the gases, as described in the said former patent.

i Instead of supporting the burner by a collar surrounding the upper end of the tube c, as shown in said patent, a construction that ne- 8 5 cessitates raising the burner the entire length of the tube before it can be removed, the base is in the present invention provided with three or more supportingposts, a, having shouldered seats at their upper ends that re- 9o ceive the liange e at the base of the chimney and thus support and center the said flange and burner, which can, however, be disengaged from its support by merelylifting it far enough to disengage the lower end of the tube from the opening a2 in the platform c', an amount of movement that can be made without encountering thecone g, which stands over the burner with its apex projecting down into the chimney f, substantially as in the patent re-` ,Ioo

ferred t0. i

The platformc surrounds the burner-tube c above the inletopenings 2, and thus prevents possibility of igniting the gas at the said openings, as may sometimes occur in the construction shown in the said patent referred to. By this construction of the burner-support the burner maybe removed withbut disturbing the cone g, and in order to prevent displacement of the latter it is permanently secured to or IiXed upon the frame-work of the stove, being shown in this instance as fastened upon posts h, that project up from the base a, said posts being shown as made tubular, and the cone g and arms d of the foot-piece d for the burner being all securely held together and rigidly fixed with relation to the base by bolts passing th rough the said tubular posts 7L.

The base portion of the cone g is provided with a cover or capplate, g', preferably also permanently attached by the bolts, and provided at its upper face with projections g2, that serve to hold a vessel or cooking utensil above the plate g', so as to be more thoroughly affected by the heat radiating from said plate.

The parts thus far described, and shown in the lower portion of Figs. 2 and 3, are complete in themselves and constitue a gas lamp or burner which may be used to heat water or anything that may be required in a suitable vessel or utensil placed upon the plate g. It is desirable, however, and gives a better finish to have the said burner inclosed in a casing, t', which may be of sheet metal supported at its lower end on the base a, and is provided with a door or opening, i', through which the burner may be removed and replaced when required.

It is necessary to admit large quantities of air around the burner, and for this purpose the casing surrounding the burner has heretofore usually been made perforated, as shown in said former patent. This perforation of sheet metal is a somewhat expensive operation, and by making the door t, which is usually a casting, with a large number of openings, as shown inpFig. l, and also providing the base c with openings a5, sufficient air may be admitted without perforating or stamping out the sheet-metal casing Vhen the stove is to be used for heating purposes or warming the air of an apartment, it is preferable to have the heating-drum a permanent part of the structure, instead of a separate removable piece, such as must necessarily be used with the construction of stove shown in the patent referred to.

The heating-drum comprises an outer shell or case, 7c, surmounted by a top, k,preferably of cast metal, and containing a flue or chimney, m, having a daring base, m', around the top of the burner, into which the flame and heated gases arise. The said flue m is opened at its top and is provided with a skeleton frame or spider, mz, interposed between its upper end and a cross-piece or bridge, k2, in the top lo', which bridge spans an opening or stove-hole in the top 7a,pr0vided with a removable cover, 7c3. The space between the lower end of the due and the drum 7c is closed by a ring, n, which prevents air or gases from passing directly from the burner or stove proper into the drum 7c, and consequently all such heated air or gases must pass up through the flue m and be discharged into the top of the drum k. It is desirable, however, to deliver the heated air as loW down as possible in the room to be heated, and for this purpose outlets are provided near thelower end of the drum k. These outlets may be perforationsin the drum, as shown at o, Fig. 3, or preferably,in order to avoid the necessity of perforating the sheet metal, the construction shown in Figs. 1 and 2 is adopted. in this latter construction the ring mmade of cast metal,is supported on the drum i, Aand is provided with a flange, n', that supports the flue m m', and with a ring, n2, that supports the drum k, and is provided with openings 02, through which the heated air may escape.

The bridgepiece k2 of the top 7c rests on the frame m2 at the upper end of the iiue m, and the parts z', le, k', m, and n are all held in place by a bolt, p, secured at its lower end in the plate g and fastened by any suitable clamping device, as p', bearing on the cross-piece k2.

If desired, the ring n might be made integral with the plate g', being connected therewith by arms g3, as shown in Figs. 3 and 4.

In the modification shown in Fig. 8, asingle drum, z' k, extends from the base a to the top k', and in this construction the ring n, that scparates the stove-chamber below from the heat` ing-chamber above, is connected with the plate g by arms g3, as shown in Fig. 4, so as to support the uem m', the said drum t' 7c and flue mm being held in place by the bolt p, as in the con struction previously described.

The operation of the stove is the same in both constructions, the heated gases passing up through the space between the outer edge of the cone g and the inner edge of the ring n and up through the fine m, as indicated by the arrows, and then descending through the interior of the heating-drum 7c, and being delivered through the outlet-openings o or 02.

If the stove is to be used for cooking purposes, the heating-drum 7c and its inclosed ue m will not be used, and the top plate, g', over the cone, either with or without such an extension as produced by the arms g3 and ring n in Fig. 4, will be properly constructed to re ceive any cooking apparatus that may be required.

The drum need not necessarily be used, as it does not form an essential part of the supporting frame-Work of the stove, as is the case in the construction shown in Patent No. 285,311, herein before referred to.

While the device g has been spoken of as a cone, it is obvious that itis not necessarily conical in shape, its function being to spread and distribute the flame, as described in the patent referred to, and such distributing de- IOS IIO

vice y is also found to greatly facilitatev and improve the combustion of the gases, probably owing to the fact that the said gases have a much larger surface exposed to the air.

. I claiml. In a gas-stove, the main frame consisting of a base and uprights supported thereon, combined with a ame spreading and distributing device of y substantially conical shape, having its base tightly held upon said up-. rights with its apex projecting down between them, and a burner consisting of a tube that receives gas and air at its lower end and is provided with a lateral flange near its upper end, and a perforated chimney of larger diameter than said tube supported` on said flange, the said burner being held in supports thatl engage the lower end of the burner-tube and the ange thereof, whereby the said burnertube is removable laterally from between the base and spreading device, substantially as' and for the purpose set forth.

2. The combination of the main frame composed of a base provided with uprights, with a burner composed of a tube that receives air and gas near its lower end, a lateral flange near the upper end of the said tube, and a per forated chimney on said iiange, thesaid burner being held in a socket near its lower end, and the iiange at the upper end of the said tube being seated on uprights supported from the base, and an inverted cone tightly fastened on uprights connected with said base and having its apex extend downward into `the said chimney, substantially as described.

3. The main frame composed of a base pro vided with standards or uprights, combined with an inverted cone tightly'fastened upon said uprights and provided with a plate attached to its base portion for'supporting cooking utensils, and a burner composed of a tube provided with a flange near its upper end, and

a perforated chimney` of larger diameter than Y Witnesses:

Jos. P. LIVERMORE, JAs. J. MALONEY.

as and for the p'ury