US615138A - wentworth - Google Patents

Description

(No Model.)

o" @unaniem l "l Patented Nov. 29, |898. L. W. CARROLL &. F. B. WENTWORTH.

L A M P (Application led Dec. 27, 1897.)

Ilumlllllllllllll III WIIH NITED STATES.

PATENT Erica.

LOUIS YV. CARROLL AND FRANK B. WENTWORTH, OF SUMNER, IOWA, ASSIGNORS, BY MESNE ASSIGNMENTS, TO JACKSON FITZ RANDOLPH,

OF CHICAGO, ILLINOIS.

LAM P.`

SPECIFICATION forming part of Letters Patent No. 615,138, dated November 29, 1898.

Application iiled December 27, 1897. Serial NoJ 663,453. (N0 model-l To @l whom it may concern:

Be it known that we, LOUIS WV. CARROLL and FRANK B. WENrwoRTH, citizens of the United States, residing at Sumner, in the county of Bremer and State of Iowa, have invented certain new and useful Improvements in Lamps; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

The invention relates to lamps for burning kerosene in which illumination is secured by the incandescence of a non-combustible mantle.

The objects of the invention are to secure perfect combustion and improved means for adjusting and securely holding together the parts of the lamp.

The invention consists in the various parts and arrangement of parts hereinafter described,and shown in the accompanying drawings, in which- Figure lis an elevation of our improved lamp, the shade being shown in section. Fig. 2 is a central vertical section of the burner. Fig. 3 is a sectional view on the line 3 3 of Fig. 2. Fig. 4 is an elevation, partly in section, of an adjunct of a Bunsen burner used in the lamp; and Fig. 5 is a plan View of the part shown in elevation in Fig. 4.

The bowl or fount A is without novel features. It is provided with concentrically-arranged wick-tubes B C, forming an annular space for the accommodation of a tubular wick. Any suitable wick-elevating device may be used. The ordinary rotating spindle a is shown in the drawings. The outer tube B is prolonged above the upper end of the tube C a short distance, and within the end of the tube C is fitted a plug G, from which rise a plurality of radiating blades F, having near their lower ends outstanding shoulders f. A Bunsen tube D its over the blades F and is supported upon the shoulders f, so that a narrow annular port is formed between its lower end and the top of the plug G. The

tube D is provided with air-ports d, which are as numerous or of such area as may be necessary to properly support combustion, and these ports are located below the upper ends of the blades F, which are bent or deflected laterally, as shown at f', for the purpose of giving the ascending currents a rotary 1notion,to the end that the vapors may be thoroughly mixed before they issue from the upper end of the tube D, where they burn with a blue flame typical of the Bunsen burner.

The upper ends of the wick-tubes and the Bunsen tube are inclosed by a casing M, which is without perforations except as to the lighting-aperture m,which may be closed by a band O, encircling the casing. A gallery E forms the top of the casing M and fits tightly about the upper end of the tube D and is also without perforations.

A non-combustible gauze mantle H is mount ed above and incloses the end of the tube D, so that flame issuing from the upper end of the latter will cause the incandescence of the mantle. An inclosing chimney J, of glass, rests upon the gallery E and is surmounted by a metal chimney K of suicient length to insure ample draft to promote combustion. These chimneys are held in place by elastic arms 7c in bow form, permanently attached at their lower ends to the casing M and at their upper ends to the metal chimney K. The chimney J is adjusted to the lamp by drawing upwardly upon the chimney K, so as to raise it against the resistance of the spring-arms lc, Which when the parts are adj usted draw the upper chimney down firmly upon the lower one.

The burner may be secured to the fount in any desired manner. W'e show as a means of attachment a flange P, projecting radially from the tube B and engaging the lower end of the casing M by the Well-known bayonetpoint form of attachment. The flange Pis perforated, as shown at p, so that all of the air used by the lamp nds en trance to the burner through the bottom of the casing M.

The wick X is raised only to the top of the tube C. The tube B, extending upwardly beyond the top of the wick, incloses it as a Wall and, With the tube I), forms an annular IOO combustion-chamber, to which air is admitted only at the top. This supply of air is too small for complete combustion, and most of the vapor distilled escapes from the flame unburned. The suction due to the flame at the top of the tube D is sufficient to draw into the latter all of this unburned vapor and sufficient air through the ports (l to insure complete combustion as the mixture issues from the tube. rlhe velocity at which the vapor and air pass the bent ends of the blades F is such that they are caused to swirl and become thoroughly intermixed.

For convenience in lighting, the chimney K is provided with an aperture q in its lower end, and this aperture may be covered by a band Q, encircling and sliding upon the chimney. As the casing M is entirely without perforations, there is no escape ot unburned vapors when the lamp is first lighted, and as the gallery E is without perforations there are no counter-currents of air outside of the mantle, which would tend to disturb the fiame within it.

lVhile we show our invention as relating particularly to a lamp, its `form of burner used is equally serviceable for heating purposes and may be readily adapted for use in connection with oil-stoves.

In lighting the lamp the aperture m is opened and the wick turned up sufficiently so that a match may be applied to it when inserted through this aperture, and it is then turned down below the annular port at the base of the tube D. The aperture q being opened,a lighted match maybe inserted therein,and the ascending vapors,eseaping through the mantle, will immediately ignite. The de gree of illumination maybe controlled by raising and lowering the wick. The upwardlyextending end of the tube B prevents the access ot air to the flame, so that the combustion is quite incomplete. By locating the airports of the burner-tube above the vapor-induction port the air is directed thereto and prevented from being drawn down into the vapor-port in greater quantity than is re quired for the purpose in view.

lVe claim as our inventionl. The combination with a wick-tube and flame-chamber at the top thereof, of a Bunsen burner rising from the flame-chamber and having its lower end open only thereto, and having air-ports above the flame-chamber.

2. The combination with a wick-tube and flame-chamber at the top thereof, of a Bunsen burner rising from the inner tube and having its lower end open only to the flame-chamber, and having air-ports intermediate of its ends.

I3. The combination with a pair of concentric wick-tubes, the outer tube rising above the inner tube, of a Bunsen tube rising from the inner wick-tube and having vapor-induc tion ports at its lower end.

l. The combination with a pair of concentric wick tubes, the outer tube extending above the inner tube, of a Bunsen burner rising from the inner tube and having its lower end open only to the chamber inclosed by the upper end of the outer wick-tube.

5. In a hydrocarbon-lamp, the combination with a bowl or fount and a wick-tube rising therefrom, of an imperforate easin g inclosing the top of the wick-tube and being open only above the position at which combustion is to be maintained, and a Bunsen tube having its lower end'open to the chamber of the case, but otherwise eut of't from the atmosphere.

(3. The combination with a pair of. concentric wick-tubes, the outer tube rising above the inner tube, of a unsen tube rising from the inner wick-tube and having vapor-induetion ports at its lower end and air-induction ports above the vapor-ports.

7. The combination with a pair of concentric wick-tubes, ot' a Bunsen-burner tube rising from the upper end of the inner wicktube and having vapor-induction ports at its lower end, and an imperforate case inelosing the upper ends of the wick-tubes and the ported portion of the vapor-tube, and being open at its lower end.

S. The combination with a Bunsen burner, of a plurality of longitudinal partitions radiating from its anis and located in its receiving end, the forward ends of such partitions being laterally deflected.

9. The combination with a pair oi' concentric wick-tubes, of a plug fitting the upper end of the inner tube, a plurality of radiating blades rising from the plug and having their upper ends oblique to the axis of radiation, and a Bunsen tube inelosing the blades and being of less diameter than the outer wick-tube, and having a port at its lower end and air-induction ports between its lower end and the upper ends of the blades.

10. In avapor-burnerof the type described, the combination with a burner-tube, of an imperforate gallery radiating from the tube, and an imperforate chimney rising from the galleryand making therewith a substantially air-tight joint.

In testimony whereof we affix our signatures in presence ot' two witnesses.

LOUIS lV. CARROLL. FRANK 13. VEN'NVORTIT. lVitnesses:

M. RoBIsH,

`nto. G. KoEnnRLn.

IOO

IIO

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