USRE10871E - lungren - Google Patents

Description

C. M. LUNGREN. BBGENBMTIVE GAS LAMP.

. Reiasssuedy Oct. 4. 1887.

u 1 I. L# y QE.. slv wou X. S #ww .L vv5n` l 0 2 dx H r /Ak R J J 1% f z C 'E o o o /M\\ E E 0l :n Rm www V I H"y w/rA/Essfs;

Hmmm ,WMIIC UNITED STATES CHARLES M. LUNGREN, OF NEW YORK, N.v Y.

REGENERATIVE GAS-LAM P.

SPECIFICATION forming part of Reissued Letters Patent No. 10,871, dated October 4, 1887.

Original No. 347,622, dated August 17, 1586; Reissue No. 10,793, dated January 4, 1887. Application for present reissue filed July 17, 1887. Serial N0. 244,205.

To all whom it may concern:

Be it known that l, CHARLES M. LUNGREN, a citizen of the United States, residing at New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Regenerative Gas- Lamps, of which the following is a specification.

y The object of this invention is to provide an improved construction of regenerative gaslamps of the type in which the air to supply the interior of the flame is introduced into it through passages'leading across the escapeiiue.` The great diiiculty experienced with lamps of this form has been the clogging up of the gas-burner portion of the apparatus by overheating. In the present lamp I remedy this defect by placing the gasbur'ner below the flame and arrange air-passages around and through it in such relation to the external air that the gas burner and tip are bathed by currents of comparatively cool air. The highlyheated air conveyed through the passages crossing the escape-ilue and the airheating chamber within the ilame does not come in contact with the burner or tip, but is thrown upon the iame at a point above the tip.

In the drawings, Figure 1 showsa lamp, partly in elevation and partly in vertical section, embodying my improved construction..

Fig. 2 shows a plan of the gas-burner below the line lV V, and Fig.,3 a crossLsection on the line X Y of the air cross-tubes. Fig. 4 shows a modificationof certain details.

In Fig. 1, C is an annular gas-burner, shown as consisting of two concentric cylinders fitting in the ring G', which is attached to the central gas-supply pipe by three arms, g. This part of the lamp may be constructed of a ring of tubes, if desired, and the gas may burn from perforations or a slit located either on the top of the burner, as shown in Fig. 1, or aroundits periphery at its upper end, as shown in Fig. 4.

l In suspended lamps it is preferable, on acycount of compactness and cheapness of construction, `to carry the gas-supply pipe G up through the center of the burner and escape- Hue; but this pipe may enter the burner at or near its lower end, at the sides, or directly from below. When a center suspension-pipe is used,

air upon the lower side of the flame.

the stop-cock S may be placed in the position shown. The burner is preferably surrounded by an aircasing, D, to deflect air upon the flame on its under side, at the root, and insure the cooling of the tip. This casing may be supported by the shell E2, which is perforated at its upper/end to admit a further amount of Above the burner-tip there is. arranged a circular de- ,iiector, b, which serves to direct and divide the currents of air passing up through the center of the burner and passing down through the air-heating chamber A. This deector need not be a separate piece, but may be formed y by the lower surface of the perforated metal piece a, as shown in Fig. 4. The air to supply the interior ofthe flame is ad mitted through passages r, which are arranged across the escape-llue. From these passages it passes down- Ward into a chamber, A, located within the flame, from the lower end of which it issues upon the flame, preferably through a number of iine apertures, such asare provided by'a suitably-shaped piece, a, of perforated metal'.

The cross air-passages and the outer and inner walls of the escapeiiue are preferably cast in one piece, and the whole structure may be designated, to distinguish it from the airchamber A, the regenerator.77 This is shown in vertical 'section at R in Fig. 1 and in crosssection in Fig. 3. A downward cylindrical extension, R2, serves to continue the air-channel down to the air-chamber A. This latter, being within the llame, is preferably constructed of a material having a white reflectingsurface-such as porcelain-though it may be made of metal provided with a whitened surface. The ameis incloscd in a glass globe, H, which may rest, as shown, upon a cylindrical casing, E, which in turn rests upon the casing E2 by means of three offsets, e, which are turned inwardly, as shown in Fig. 2, the

ICO

globe-neck cool and to aid in sweeping the tips of the flame inward away from the glass and into the escape-flue. A casing, I,l surrounding the regenerator, serve s to protect the ends of the erosses r from drafts.

H is the chimney; H2, a sheathing, which may be of ornamental design; and P, an ornamental crown. Y

In my application No. 192,632, led February 20, 1886, are exhibited some of the elements shown and described in this application. My present claims are therefore limited to the constructions and organizations of devices set forth at the end of this specification.

Vhat I claim as my invention is *'1. The combination of an annular burner having an air-passage through it, which passage communicates with the external air at its lower end, an air-heating. chamber located above the burner-tip and having an outlet for air at its lower end and an inlet for air at its upper end, an air passage or channel leading across the escape-Hue and communicating with the upper end of the air-heating chamber, an inelosingglobe, an escapeftlue the inlet end of which surrounds the upper part of the airheating chamber, and an air-passage between the wall of the escapetlue and globe, substantially as specified.

2. The combination of an annular burner -having anair-passage through it, which passage communicates with the external air at its lower end, a detlector arranged above the burner-tip, an air heating chamber located above the delieetor and having an outlet for air at its lower end and an inlet for air at its upper end,l an air passage or channel leading across the escape-flue andeommunieati ng with the upper end of the air-heating chamber, an inclosing-globe, an escape-ligue the inlet end of which surrounds the upper part of the airheating chamber, and an air-passage between the wall of the escapeiiue and globe, substantially as specified.

3. The combination of an annular burner having an air-passage through it and an aircasing around it, both of these passages communicating with the external air at their lower ends, an air-heating chamber located above the burner-tip and having an outlet for air at its lower end and an inlet for air at itsupper end, an air passage or channel leading across the escape-tine and communicating with the upper end of the air-heating chamber, an inclosing-globe, an escape-flue the inlet end of vwhich surrounds the upper part of the airheating chamber, and an air-passage between the walls of the escape-due and the globe, substantially as specified. A

4. The combination-of an annular burner having an air-passage through it, which .pas-

1 sage communicates with the external air at its lower end, a central gas suspension-pipe, an

air-heating chamber surrounding the central j gas-pipe and located above the burner-tip, Bid chamber having an outlet for air at its lower end and an inlet for air at its upper end, an air passage or channel leading across the escape-flue and communicating with the upper end of the air-heating chamber, an inclosingglobe, an escape-Hue the inlet end of which surrounds thevupper part of the air-heating chamber, and an air-passage between the wall of the escape-flue and the as specified.

5. The combination of a burner having an air-passage through itconveying air upwardly to the interior of the flame, an air-passage leading across the line of the escaping products of combustion and conveying air downwardly to the interior of the llame, an escape-due, an inclosing-globe, and an air-passage leading to and opening into the globe at or near its top, substantially as specified.

6. The combination of a burner having an air-passage through it conveying air upwardly globe, substantially to the interior of the tlame, an air-'passage leading across the line of the escaping products of combustion and conveying air downI wardly to the interior of the dame, a deflector located abovethe burner-tip, an escape-flue, an inelosing-globe, and an air-passage leading to and opening into the globe at or near its top, substantially as specified.

7. The combination of a burner having an air-passage through it conveying air upwardly to the interior of the llame, an air-passage leading across the line of the escaping produets of combustion and conveying air downwardly to the interior of the dame, an airpassage surrounding the burner, conveying air upwardly t-o the outside of the flame, an escape-tine, an inclosingglobc, and an airpassage leading to and opeunginto the globe at or near its top, substantially as specified.

8. The' combination of a burner having an IOO air-'passage through it conveying air upwardly wardly to the flame, an air-passage surround-l ing the burner, conveying air upwardly to the outside of the flame, a deiiector located above the burner-tip, an escape-flue, an inclosingglobe, and au air-passage leading to and opening into the globe at or near its top, substantially as specified.

9. The combination of a burner having an air-passage through it, which passage communicat with the external air at its lower end, an air-heating chamber located above the burner-tip and having an outlet for air at its lower end and au inlet forair at itsrupper end, an air passage or channel leading across the es cape-flue and communicating with the upper end of the air-heating chamber, an inclosing- 10. The combination of a burner havingan air-passage through it, which passage communicates with the external air at its lower end, a dellector located above theyburnen-tip, an

air-heating chamber located above the deector aud having au outlet for air at its lower end andV an inlet for airat'its upper end, au

air passage or channel leading across the cs- 5 cape-flue and communicating with the upper end of the air-heating chamber, au inclosingglobe, and an escape-flue the inlet end of which surrounds the upper part of the air -heating chamber.

11`. The combination of a burner having au air-passage through it and an air-casing around it, bot-h of these passages communicating with the external air at their lower ends, an airhating chamber located above the burnertip and having au outlet for air at its lower enrl and au inlet for air at its upper end, au air passage or channel leading across the escape-due and communicating with the upper end of the air-heating chamber, an inclosingglobe, and zo an escape-flue the inlet end of which sur-l rounds the upper part of the air-heating chamber.

12. The combination of a burner having an air-passage through it and an air-casing around it, both of these passages communicating with the external air at their lower ends, a de lector located above the burner-tip, -an airheating chamber located above the burner, having an outlet for air at its lower end and an inlet for air at its upper end, au air passage or channel leading across the escape-line and communicating with the upper end of the air-heating chamber, an inclosing-globe, and au escape-flue the. inlet end of which surrounds the upper part of the air-heating cham- 35 ber.

. CHARLES M. .LUNGREN. Witnesses:

WM. H. CAPEL, GABRIEL J. vW. GALSTER.

Images