USRE1488E - Improvement in lamps - Google Patents

Description

2 Sheefs-Sheet 1.

E. B. REQUA.

Lamp;

Witnesses:

' .Reissue d June 2, I863.

Wi /a UNITED STATE PATENT OFFICE,

B. REQUA'OF-JERSEY crrr, new JERSEY.

IMPROVEMENT lN LAMPS. r

Specification forming part of Letters Patent No. 35,175, dated May 6, 1862; Reissue No. l 18?, dated June 2, 1863.

To 00% whom, it may concern: flector, H, is fitted or secured and insulated Be it known that l, E. B. BE UA, of Jersey by means of plaster-of-paris, c, or any cement City, in the county of Hudson and State of or material which is a good non-conductor of Few Jersey, have invented a new and Imheat. The cone or deflector H may be of the proved Lamp; and I do hereby declare that same form as'those used in ordinary coal oil the following is a full, clear, and exact descripburners; but the upper end of the wick tube tion of the same, reference being had to the E, instead of being below the slot 01 of the accompanying drawings,makingapart of this cone, as usual, projects a little above it, as specification, in whichshown in Fig. 1. Figure 1 is a vertical central section of my I represents an outer cone or deflector, invention, taken in the line 00 or, Fig. 2; Fig. which encompasses concentrically the cone or 2, a horizontal section of the same, taken in deflector H, and is sufficiently larger in diamthe line 1 3 Fig. 1. eter to admit of a space or chamber, e,between Similar letters of reference indicate correthem/to serve as a draft-passage. The upsponding parts in the two figures. per end or apex of the cone or deflector 1 is This invention relates to an improved lamp provided with a slot, f, which is in line with of that class designed for burning coal-oils the slot d of cone H, and the top of the wick withoutachimney; anditconsistsineonstructtube E, and some distance, above the latter. ing the burner of the lamp in such a manner The cone I-is'of sueh'a form and has such a that the flame will be supplied with a requiposition relatively with the cone H, as to leave site amount of oxygen to insure perfect coma narrow space, 6 ,all around cone H, at about bustion, and at the same time be capable of its center. (See Fig. .1.) Below this narrow being adapted or applied to any of the lamps space 0 the cone I quickly expands, and is in general use without heating and vaporizconnected at its lower end to a glass tube, J, ing the oil in the lamp to cause an explosion of conical or'an approximate form, which rests thereof, and without obstructing the rays of on a horizontal annular flange, 9, attached light or casting a shade around the lamp. to the burner just above the perforations a To enable those skilled in the art to fully thereof. The cone I may be insulated from understand and construct my invention, I will the tube J by plaster-of-paris, h, interposed proceed to describe it.

between them, or any other cement which is A represents the body or fountain of the a good non-conductor of heat. The annular lamp, which is inclosed by a jacket or case, B, flange ghas .spacesi between it and the burner of any suitable or desired form, having per- D, 'andthe upper part of the space e, above forations a all around it at its lower part. The the narrow part c, and cone H, is comparafountain A may be supplied with oil through tively large, so as to form quite a chamber at a tube, C, which projects through the jacket the base of the flame j. or case. B, and is provided with a stopper, b. The operation is as follows: The wick-tube D represents the burner, which is screwed E is supplied with a wick, K, of the usual flat into the upper end of the jacket or case B, kind, and when the wick is lighted the flame and is provided with a wick-tube, E, of the jis supplied with air through the jacket or usual flat form. The lower endof the wickcase B, the air passing up through the lower tube E is provided with a bell-shaped cap, part of the burner and into the bottom of F, which, when the burner is screwed into the tube G, and thence upward to the base of the top of the jacket or case B, serves as a top flame 9', as indicated by arrows 1. Another for the fountain A, as shown in Fig. 1. The draft of air passes through the spaces or burner D, just above the jacket or case B, openings 'i in the flange g, and up through is perforated with holes I), which extend all the tube J and into the space 6, and impinges I around it. against the sides of the flame j, as indicated G isavertical tube, which may be'of slightly by'the arrows 2. The narrow space e causes conical form, and is fitted on the burner D so quite a rapid current of air to impinge against as to inclose the greater part of the wick-tube the sides of the flame a short distance above 4 E. On the top of this tube G a cone or dethe top of the wick-tube, and insures perfect other good non-con out cement.

flector I of metal insulated by plaster-ot pliris or other good non-conductin g cement.

3. he combination of the two tubesG J,

there is a current of air passing through G, which has a tendency to keep the wick-tube cool. On account of this arrangement the A wick-tube cannot conduct heat down into the of a space, 0, between them, having a narrow fountain A, so as to vaporize the oil therein, passage, e, to increase the rapidity of the draft against the sides of the flame, s

tially as and for the purpose herein set forth. 4. Providing the lower end of the wick-tube ssing up through the jacket or case B also has a tendency to .lreep the fountain and its contents in a cool The burner D may be screwed into any or- (linary lamp in the same way as it is screwed into the jacket or case B, herein described.

The wick K may be raised and lowered by the usual serrated wheel, a a".

I do not claim, broadly, the employment or use of two tubes, G J, placed one within the other to supply the flame with air, nor do I claim an air passage encompassing the fountam of the lamp; but,

Having thus described my invention, What do claim as new, and desire to secure by Letters Patent, is p 1. The tube G, made of metal, with its metal deflector H insulated by plaster-of-paris or ducting cement, or made of ing supplied with a requisite quantity of air at its base, and by a current which passes around the fountain A, to keep its contents cool, as herein described.

5. The combination of thetwo tubes G and J, cones H I, wick-tube E, cap F, burner D,

ange 9, jacket or case B, and fountain Ain short, the whole lainp all arran structed as and for the purpose and in the manner represented and described.

E. B. REQUA. Witnesses:

J. P. FITCH, GEO. H. DURYEE.

glass with the deflector H fitted upon it with 2. The tube J, made of glass, with its de-

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