Improvement in vapor-burners
US 165468 A
Description (OCR text may contain errors)
N UNITED STATES PATENT OFFICE JOSEPH BENSON, OF BOSTON, MASSACHUSETTS.
IMPROVEMENT IN VAPORBURNERS.
Specification forming part of Letters Patent No. 165,468, dated July 13, 1875 application lfiled June 3,1875.
To all whom it may concern:
Be it known that I, J osEPn BENSON, of Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in Vapor-Burners, of which the following is a specification:
This invention relates to naphtha vaporburners, and its object is to secure the supplementary flame to heat the naphtha and make it into a gas by the direct emission of gas from the inside of the burner-tube at or near that part of the burner-tube on which the suppleinentary flames are to act 5 and, for this object, this improvement in vapor-burners consists in the combination, with an opening or openings made in and extending directly from the 4out-side to the inside ot' the burner-tube, and located at or near the part of the burnertube to be heated for generating gas from the naphtha, of a contraction, substantially such as herein described, on the inside of the burnertube, that is situated therein with regard to the said openings so as to restrain the upward passage or flow of the gas through the burnertube, and thereby accumulate suiicient backward pressure thereof to secure its emission at the openings against the inward pressure of the external air, and in the proper direction for the llames produced from it to impinge lagainst the part or parts of the burner-tube to be heated.
In the accompanying plate oti drawings my present improvements in vapor-burners are illustrated in connection with a vapor-burner constructed substantially, except as to the features of this invention, like the burner described in the Letters Patent issued to me dated April 13, 1875, and No.162,016; and, in said plate- Figure 1 is a central vertical section of the burner, andl Fig. 2 a horizontal section enlarged on line x au, Fig, 1.
In the drawings, A represents the naphtha feed-tube of a naphtha-burner, which tube is to be packed as ordinarily. The feed-tube A enters and opens into the chamber a of a ,dat disk, B; b, an inclined vertical passage leading from chamber a of disk B to the vertical central passage c below disk B, which vertical passage c opens to the burner-tube d, and is provided with a pointed screw-regulator, O,
and au air-hole, d2, all as ordinarily in naph thaburners; D, the burner-tip at upper end ot' burner-tube d; f ff, dac., slit-openings in burner-tube d. These slits f commence just above the upper plate of' chambered disk B, and they extend from such point in vertical and parallel lines upwardly along and for a portion of the length of the burner-tube d, and are separated from each other by the intermediate and remainingparts g g, 85e., of the said tube d. Every other one ot' these intermedidatejparts g g separating slit-openings f of burner-tube is similarly bent inwardly, as at h, Fig. 1, which proportionately contracts the central passage l leading through the burner-tube d to the burner.V The gas passing through burner-tube, more or less, escapes at the slit openings ff, and there being ignited makes a supplementary flame 0r flames, by which to heat the naphtha and generate it into a gas to be consumed at the burner-tip when the burner is lighted; and, in the presi enables it to accumulate and maintain aback pressure sufficient to overcome, and consequently to secure the escape ot' the gas against, the pressure inwardly of the external air at said slit-openings f f, dto., and this result is secured without any substantial or practical interference with the supply of gas at the burner-tip. By the downward and outward incline of the lower portion m of the inwardlybent walls g, the gas in its escape at the slitopenings f f, &c., as above described, is directed toward the upper plate b2 ofthe chambered disk, and thus made, when ignited, to im pin ge the better against the chanibered disk for heating it, and the naphtha passing through its chamber from the feed-tube A. Figs. 3, 4, and 5 of the drawings represent modifications more particularly in the form of the inside contraction of the burner-tube passage, and their contractions are obvious without particular description, and, While they each and all act to produce the escape of gas at the openingsff leading thereto, in substantially the same manner as the construction herein particularly described, and shown in Figs. l and 2 of the drawings, they are not as efficient, practical, and perfect; F, a chainher surrounding burner-tube d. This chamber is closed at its upper end, except as to the small vent-holes o o for air to escape, but it is open at its lower end to the entrance of the supplementary iiame or flames from the slitopenings f in burner-tube, and these flames within the chamber F are confined and held about the burner-tube for an increased heatin g of the gas passing to the burner-tip by the surrounding` outer Wall G, making the chainber F, which wall is of a bell shape. (See Fig. l.) H, the ordinary cup-shaped dish to receive naphtha, or other suitable fluid, by which to start the generation of gas from the naphtha fed by the naphtha feed-tube when the burner is to be lighted.
Although I have herein described my improved construction of burner-tube for producing the supplementary flame or flames in connection .with a chambered disk, B, for generating gas from the naphtha, it is obvious that the operation of such construction is not dependent upon any particular construction of the burner for the impingement of the supplementary flames, it bein g ofcourse necessary in all cases, for the most efcient and perfect results, that the formation of the inside contraction of the burner-tube should be such as to properly direct the escape of the gas for a direct impingement of its flame against the surface to be heated by it. And, furthermore, it may be Well to here observe that the shape of the openings f f may be varied, but the form described is found iu operation to be most eflicient and perfect. To regulate the escape of the gas at the supplementary-flame openings ff, i provide the outside of the burner-tube d with a sleeve or collar, s, and arrange it thereon, so that it may be slid up or down to expose or cover, as the case may bc, more or less of the saidy flame-openings ff to the escape of gas according as may be found necessary.
Having now described my invention, what I claim, and desire to secure by Letters Patent, is-
1. The burner-tube d, provided with the openings f, in combination with an inside contraction of the passage l through said tube, substantially as and for the purpose described.
2. The burner-tube el, constructed with the openn gs f and inside contraction, as described, in combination With the chamber F surroundin g the burner-tube, substantially as described, for the'purpose specified.
- JOSEPH BENSON. Witnesses:
EDWIN W. BROWN, GEO. H. EARL.