US621910A - Smoke-consuming globe - Google Patents

Description

Patented Mar. 28, I899.

SMOKE cuwsumma ems:

M A L R U D (Application filsd Mar. 11, 1898.)

(No Mode l.)

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JOHN DURLAM, OF BUFFALO, NEW YORK.

SMOKE-CONSUMING GLOBE.

SPECIFICATION forming part of Letters Patent No. 621,910, dated March 28, 1899.

Application filed March 11,1898. Serial No. 673,455- (No model.)

To aZZ- whom it may concern:

Be it known that 1, JOHN DURLAM, a citizen of the United States, residing at Buffalo, county of Erie, State of New York, have invented a certain new and useful Improvement in Smoke-Gonsumin g Globes,of which the following is a specification.

My invention relates to a new and useful improvement in globes for gas, oil, and other burners, and has for its object to so construct and arrange a globe of this description as to bring about perfect combustion therein, thereby consuming every particle of combustible material and preventing the giving off of smoke or unconsumed gases, which have heretofore occasioned so much annoyance in discoloration and unpleasant odors.

WVith these ends in view this invention consists in the details of construction and combination of elements hereinafter set forth and then specifically designated by the claims.

In order that those skilled in the art to which this invention appertains may understand how to make and use the same, the construction and operation will now be described in detail, referring to the accompanying drawings, forming a part of this specification, in which- Figure 1 is a central vertical section of my improvement as especially adapted for gasburners; Fig. 2, a section at the line a; 00 thereof; Fig. 3, a central vertical section of my improvement adapted for use in connection with the burners of ordinary oil-lamps; Fig. 4:, a slightly-modified form of Fig. l, in which the heat-passages are of less size relative to the size of the burner, while a reverberating dome is provided at the top of the outer globe; Fig. 5, a central vertical section showing a modified form of my improvement,

. in which a single globe is used and a deflecting-top of metal or other suitable material applied thereto having a hood for conveying the products of combustion downward; and Fig. 6, a form of my invention in which a straight globe is used having a bracket secured therearound for the support of a dome or half-length outside globe.

In the use of gas, oil, and the like for illuminating purposes it has heretofore been customary to place around the flame a single globe open at both ends in order that air for combustion might be supplied to the burner beneath and escape therefrom at the upper end; but, as is obvious, the result of this is a rapid passage of air at a comparatively low temperature through the globe, which when coming in contact with the flame tends to reduce the temperature of the products of combustion to such an extent that such flames usually give off a certain amount of smoke or unconsumed gas, which not only reduces the brilliancy of the light, but is wasteful of the material being used for the production of said light and with the consequent result of befouling the surrounding atmosphere and often the walls and other objects in proximity thereto. Another cause which tends to aggravate the result above named is the chilling efiect of the exterior air upon the sides of the globe, and as a brisk circulation of this air takes place immediately adjacent to these surfaces by reason of said air being raised in temperature from contact with said surfaces the temperature of the globe is much less than would otherwise be the case were its outer surfaces protected from this chilling effect of the air, and the reduced temperature of the globe in turn reduces the temperature of the air and products of combustion passing through the globe. The natural means of overcoming these objectionable results is the inclosing of the primary globe in such manner as to protect its outer walls from the action of the external air and at the same time utilizing the fed thereto by the air which passes through the globe. Still another condition must be observed in bringing about perfect combustion within a globe, and that is the prevention of the chilling of the products of combustion before they have had time to be thoroughly combined by the action of the heat, and this has heretofore not been done, since when the products of combustion issue from the top of a short globe they were immediately reduced in temperature below a point where chemical combinations could further take place, and thus caused the formation of soot, smoke, and disagreeable odors.

I overcome the difficulties above named and accomplish the desired results here stated by the following constructions:

In Figs. 1 and 2 my improvement is especially designed for use in connection with gasburners, and consists of an inner globe or chimney A, adapted to fit upon a suitable bracket B, while around this is placed the secondary globe or chimney O, which latter may be either formed with the globe A by a cross-web D, through which are a suitable number of holes E, or it may be separated and attached thereto in any suitable manner or held in proper relation thereto bya bracket F, and in practice I prefer that the pipe G, leading to the burner, shall have a coil H formed therein of sufficient diameter to just pass within the outer globe. From this it will be obvious that when the gas is ignited at the tip of the burner it will be supplied with a proper quantity of air for its combustion by the inflowing of the atmosphere at the lower end of the globe A, and that the products of combustion will pass upward through this globe and be deflected by the semispherical top I of the outer globe, from V whence it will pass downward through the space J between the two globes and out at the bottom of the outer globe. During this passage of the products of combustion the temperature of the inner globe will be raised to approximately the temperature of the flame, and this will be assisted by the downward passage of these products in their still heated state through the space J, for by so doing the outer walls of the inner globe are kept at a relatively high temperature, with the obvious result of maintaining the proper temperature of the burner to bring about complete combustion, and with a further obvious result of giving the products of combustion sufficient time to thoroughly combine before being brought into contact with the surrounding atmosphere, and thus preventing their being chilled, which would, as before set forth, cause the formation of soot, smoke, and objectionable odors. Another advantage of the construction just described is that the downward-flowing heated products of combustion will come in contact with the coil II and raise the temperature thereof, and this in turn will heat the gas passing through said coil, which, as is well known, will assist the combustion of said gas when reaching the burner, thereby intensifying the illuminating power of the resultant flame.

In Fig. 3 the construction is especially adapted for the burners of ordinary oil-lamps, and consists of the inner globe or chimney K, which is adapted to fit upon an ordinary bracket of the lamp, and around this chimof the inner globe and the products of combustion formed by the flame and air pass upward in their heated state through this inner globe and are returned through the passage M, formed by the two globes, until issuing from the lower end of the outer globe, and in so doing maintain the inner globe at the proper temperature to give to the products of combustion a sufficient time in their heated state to properly combine before being chilled by contact with the surrounding atmosphere.

The modification shown in Fig. at includes an inner globe or chimney N and an outer globe O, the latter having formed upon its upper end a spherical reverberating dome I, the object of which is to retain the products of combustion a greater length of time than would otherwise be the case, thereby permitting them to more thoroughly combine and also to form a heating-chamber the walls of which will give off sufficient heat to raise the temperature of the room in which the device is placed,

In Fig. 5 Q represents the primary globe,

,which has supported upon its upper end a dome R, with which is formed a deflectinghousing S, there being suitable openings T for the passage of the products of combustion from the dome to this housing, whereby they may be deflected downward, with the results above named. This dome and housing may be made of any suitable material, either glass 01' metal.

In Fig. (3 I have shown a straight globe U,- adapted to fit upon a gas or other bracket, and around this chimney is placed a supporting-bracket V, upon which is supported the dome or half-length globe IV, and when this form of globe is used the products of combustion will pass from the upper end of the chimney and downward through the space X, and finally from the lower end of the outer globe, and in practice this globe maybe made of metal.

I have found by experiment that an exceedingly brilliant light is generated when my improvement is used, with a decided saving of the material for supporting the flame,

and that no smoke, soot, or smell issues therefrom, thus fully bearing out the statements above set forth.

Having thus fully described my invention, what I claim as new and useful is 1. In combination an inner globe, an outer globe supported thereby, said outer globe having a closed top for deflecting the products of combustion, as an d for the purpose described.

2. In combination with a gas -burner, a globe consisting of an inner section adapted to fit upon a support-bracket and an outer section formed therewith or attached thereto,

In testimony whereof I have hereunto af fixed my signature in the presence of two sub and a coil formed beneath the burner and scribing witnesses. adapted to be surrounded by the lower end of the outer section whereby the temperature of the gas passing to the burner will be raised, as specified.

JOHN DURLAM.

Witnesses:

FRANK HOFFMANN, EMIL NEUHART;

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