US80494A - James minifie - Google Patents

Description

J.- MIN'IFIE.

Lamp Burner.

No. 80,494 Patented July 28,1868.

JAMES MINIFIE, OF BALTIMORE, MARYLAND.

Letters Patent No. 80,494, dated July 28,1868f IMPROVEMENT IN LAMP-BURNERS.

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TO ALL WHOM IT MAY GONGEEN Be it known that I, JAMES MINIFIE, of the city and county of Baltimore, and State of Maryland, have invented a new and useful Improvement in Gas and Lamp-Burners;-and I do hereby declare that the following is a full, clear, and exact description of the construction and operation .of the same, reference being bad to the accompanying drawings, making a partof this specification, inwhich Figure 1 is a p'erspectiveview.

Figure 2 is a vertical axial section.

Figure 3 is a-detached view of the upper deflector. V

The object 'of this invention is to-increase the illuminating capacity of lamps and gas-burners, by providing for them a combined burner and reflector, which shall cause a more perfect combustionof the gases, smoke,

- serving. to collect andguide the current into the openings above.

820., and whichshallcollect the light and reflect it to better advantage for the purposes of reading, sewing, &c., than any burner, reflector, or lamp-shade hitherto employed. I

In the drawings, D represents the lower part,-and C the upper part of my improved deviceyeach part consisting of a conical corrugated or fluted plate, the lower one being the larger, and being brazed at its top to the wick-tube e, and supported nnderne'a th by a ,foraminou-s plate, or braces of metal, g, attached to the wick-tube, and the upper one'being supported by arms or braces, 01 d, which spring from the wick-tube at 'or near the apex of the plate D.

The apex of the upper plate is provided with an opening for the blaze of the lamp, and is so adjusted as to be about'a half inch above the upper end of the wick-tube, in order that a part of the flame may come below it, and its light be reflected downward and outward by the under surface of the plate, "while the rest comes above, and is reflected in part from its upper surface. h

Along thesummits of the'ridg'es formed'by eorrugating the lower cone, a series of openings is'made, for the purpose of admitting currents of air from below to the space between the cones, 'and thence'to the flame. The air follows the channels -in the under surface of the lower cone directly to these openings, the corrugations The bottom of the chimney rests upon the lower cone, as seen in fig. 1, and the corrugations form channels all around under its lower edge, through which other currents of airai'e admitted to the central space between the cones. The'corrugations thus' answer an important purpose in properly supplying and'directing atmospheric air to support combustion. They answer also another. and equally important purpose, by increasing the reflecting surface and multiplying the angles at which the light is thrown from the burner. Were the upper surface of the cones smooth, the light would be reflected in such a manner that a bright spot would appear at a single point onthe reflectors, while, as now constructed, they both reflect the light all along each corrugation that 'is visible to the observer.

The two plates intercept the light of the lower part of the blaze between them, and collecting it together, cast it downward and outward in a ring of great brilliancy around the lamp, while a part of the flame, suflicient tolight the room tosome extent, but not to blind the eye, is above the upper cone, and operates in the manner of ordinary lamps. From this cause the lamp is easier for the eye, for the purpose of reading, sewing, '&c., than, any heretoforeused. I

The light is so eeonomizcd,- and the draught of air so perfectly fed to the flame by this improved burner, that it increases the brilliancy and illuminating power of the light of the lamp on which it is employed more than twenty-five per cent., as has been demonstrated by actual experience.

It will be observed that the corrugations of the cones radiate from their apex.

I do not broadly claim a corrugated cone when employed upon a lamp-burner; but

What-I do claim as new, and desireto secure by Letters Patent, is-

1. The combination and arrangement of the two corrugated cones C D, and tube e, substantially as described.

2. ,The corrugated cone D, when providcdwith the above-described openings along the summits of the ridges formed by the corrugations, substantially as and for the purpose herein set forth.

JAMES MINIFIE.

Witnessesa, V

Carl n Les Ramona SIIECKELLS, Hmmx Lewis.

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