US357962A

US357962A - lung-ren

Info

Publication number: US357962A
Authority: US
Publication date: 1887-02-15
Anticipated expiration: 1904-02-15

Description

3 Sheets-Sheet 1.A

(No Model.)

C. M. LUNGREN. REGBNBRATIVE GAS LAMP.

No. 357,962. Patented Feb. 15, 1887@ INVENTOR Wl T NESSES A T'TORNEY 3 sheetssheet 2.

(No Model.)

G. M. LUNGREN. REGENERATIVB GAS LAMP.

Patented Peb. 15, 1887.

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v E R Patented Feb. 15, 1887.

ATTHIVEY UNITED STATES PATENT OFFICE.

CHARLES M. LUNGREN, OF NEV YORK, N. Y.

REGENERATIVE GAS-LAM P.

SPECIFICATION forming part of Letters Patent No. 357,962, dated February 15, 1887.

Application filed February 20, 1886. Serial No. 192,632.

To all whom it may concern: I

Be it known that I, CHARLEs M. LUNGREN, a citizen of the United States, and a resident Yof New York, in the county of New York and State of New York, have invented certain new and useful Regenerative Gas-Lamps, of which the following is a specification.

The chief difficulty experienced with regenerative gas-lamps as heretofore constructed has been the clogging of the gas-burner portion of the apparatus, due to its overheating. In some forms of these lamps the gasburner hangs within the hot-air chamber, and in others it surrounds the central flue through which the hot products of combustion escape. In both cases it is in proximity to the hot metal air-heating surfaces, and is, moreover, washed by the currents of highly-heated air in their passage to the flame.

It is the object of this invention to provide a construction of regenerative lamp in which, while the air is very completely exposed to the heat of the dame and escaping products of combustion, the gasburner part of the apparatus will not become sufiiciently heated to decompose the gas or combustible vapor passing through it. To accomplish thisI place the gas-burner below the fiame, and cause the air entering to supply the iiame to pass through and around it before such air has been exposed to the heatof the flame and products of combustion. The air to supply the interior of the flame, after passing through the burner and becoming partially heated by contact with the same, is admitted into the upper portion of an air-heating chamber located within the flame and extending any desired dist-ance up into the escape-due. This air passes from the upper portion of this chamber downward, in contact with its hot external wall, to its mouth, from which it issues upon the iiame a short distance above the burner-tip. This airheating chamber, being located within the iiame and the current of hot products of combustion, is in the most favorable position for an intercha-nge of heat between it and the escaping gases. From the manner in which itis supported it can, moreover, part with but a small amount of the heat by conduction through the support, and the main portion of this will be yielded up to the entering air.

In the drawings, Figures 1, 2, and 3 show (No model.)

three forms of the lamp, differing from each othervin certain details of construction. Fig. 4 is a plan of the device by which the cylindrical casing carrying the globe is supported.

In Fig. l, C is an annular burner having at its upper end a tip c c', for the emission of gas or combustible vapor. The gas-openings may be around the periphery of its tip, as shown in Figs, l and 3, or they may be on its upper surface, as shown in Fig. 2. The gas may issue from a ring of holes, a circular slit, or other form of opening.

A is an air-heating chamber supported within the flame by the air-tube B. This tube is provided with openings b b, through which the air passing up through the center of the burner finds its way into the chamber A. In this chamber it becomes highly heated by contact with its hot external wall, and then issues from its lower end upon the flame F. A casing, D, surrounding the burner O, serves to convey air to the under side of the fiame at its root. The lame is inclosed in a glass globe,

H, which rests upon the supporting-cylinder.

E, through which additional air is admitted to the under side of the iiame. This cylinder E is shown supported upon the shell D by means of a bayonet-joint. TheshellDis flared at the bottom and provided with notches d, while E is provided with offsets ce, which pass through the notches in D and rest upon its dared part when the shell E is in place. To properly break up the aircurrents and protect the burner from drafts, the bottom of Eis shown as provided with a perforated cap, E. The gas-burner C, as shown, consists of two concentric shells connected to the central gassupply pipe, G, by the lateral arms g g.

S is the stop-cock, operated by the key K.

Theburner may also consist of a circle of bat-wing or fishtail jets.

H represents a metal chimney seated upon the globe at h h, and attached to the central gas-supply pipe by the arms h h. This chimney may be formed by an extension of the glass; but it is preferably made of metal, as shown.

Nhile the construction so far described answers for lamps of small gas consumption, itis not adapted to those using large amounts of gas, in which it is necessary to protect the inclosingglass from the great heat of the flame,

ICO

and also to more completely protect the burnertip from overheating.

Figs. 2 and 3 show forms of lamp in which provision is made for protecting both the inclosing-glass and the burner from the heat of the flame.

To prevent the burnertip from becoming overheated, the central air-tube, B, upon which the air-chamber A rests, is made of a less diameter than the inner wall of the burner C, so that there is an annular air-space between the two. The tube B is also provided with a collar, b', located above the burner-tip, which serves to deflect the air passing up between B and the inner wall of the burner upon the flame, and also acts as a screen to protect the tip from the direct heat of the iiame.

To protect the globe from the heat of the flame, the escape-flue islocated in such a rela tion to the iiaine that its ends will be swept in away from the glass, and an air-passage is arranged between the globe and the escape-flue, by means of which the upper part of the globe is washed by a current oi" comparatively cool air.

In Fig. 2, C is an annular burner provided with a tip having gas-holes on its upper side. It screws into the ring G, which is connected to the central gas-supply pipe, G, by the three arms g. A casing, E2, perforated at its upper end, regulates the amount of air admitted to the outside of the flame. It supports the casing D, which directs air upon the flame at its root, and also serves to support the cylindrical globe-support E, which rests upon the bead at its lower end by means of the offsets e2, the bead being out away in three places, as indicated in Fig. 4, to allow of the passage of its oifsets e2 in removing the globe.

B is the central air-tube, through which the air to supply the interior of the flame is admitted. It is provided with an annular oset or collar, b', and supports the air-heating chamber A by means of the perforated cuppiece a. A cap, A', serves to make a tight joint between A and the gassupply pipe G. The neck of the globe H enters the annular space formed between the outer wall, I', of the head-plateI of the lamp and the wall J of the U-shaped piece, of which the inner wall forms the lower portion of the escape-flue. The head-plate I is perforated, as shown, to admit air. This is caused to travel downward and come in contact with the heated surface J before passing into the globe by the rim i. It then passes along the inside of the neck of the globe and prevents this becoming over,- heated. A loose ring, m, serves to make a tight joint between the globe and wall l,while allowing for inequalities in the globes.

H is the chimney, and H2 sheathing, which may be of ornamental design.

l? is an ornamental crown.

In Fig. 3 the construction of the gasburner portion of the lamp and the surrounding aircasings is the same as that shown in Fig. l, save that the gas-holes are shown on the periphery instead of the top of the tip. The airheating chamber B is in this case shown extended up into the escape-flue, so as to be more completely exposed to the heating effects of the escaping products of combustion. It is supported upon the air-tube B by the perforated piece a, and closed at the top by the cap A. In `the construction shown in this figure the air to cool the neck of the globe enters at the outside surface of the globe-neck and passes up over its upper end and then down along its inside surface, thus very effectually keeping it cool. 'A sliding ring, m, having perforations near its lower edge, serves to make a tight joint with the globe and limit the amount of air allowed to enter at this point.

The wall of the escape-flue .I may be provided with a non-conducting lining, N, of asbestus or similar material, to prevent the loss of heat from the escaping gases through the walls of the escape-flue. As in Fig. 2, H is the chimney,and H2 an ornamental sheathing to the same, and P an ornamental crown.

The air-chamberA is preferably constructed of porcelain or of similar refractory material, though it may be made of metal with a whitened surface.

In my Application No. 192,633, 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.

What I claim as my invention is l. The combination of a burner, an air-heating chamber extending above the burner-.tip and having an outlet for air at its lower end, and an air-conduit arranged within thelburner and extending up into said chamber above the line of said outlet, substantially as specified.

2. The combination of a burner with an aircasing surrounding it, an airheating chamber extending above the burner-tip and having an outlet for air at its lower end, and an ail" conduit arranged within the burner and eX- tending up into said chamber and above the line of said outlet, substantially'as specified.

3. The combination of a burner, an air-heat ing chamber extending above the burneutip and having an outlet for air at its lower end, an air-conduit arranged withinthe line of the burner-tip, conveying air upwardly into the air-heating chamber, and also delivering air to theinterior of the flame at a point between the burner-tip and lower end of the air-heating chamber, and an inclosing-globe, substantially as spcciiied.

4. The combination of an annular burner, an air-heating chamber extending above the burner-tip and having an outlet for air at its lower end, an air-conduit arranged Within the burner and extending up into said chamber above the line of said outlet, and an air space or passage between the inner wall of the burner and the air-tube, substantially as specified.

5. The combination of a burner, an air-heating chamber extending above the burner tip IIO IZO

or tips, an air-conduit arranged within the line ofthe burner tip or tips, conveying air upwardly into the air-heating chamber, and 'an escapeflue the lower or inlet end of which is located above or around the upper part of the air-heating chamber and in such relation to the same that the tips of the ilaine are swept inward around the upper part of the air-heating chamber, and an inclosing-globe, substantially as specified.

6. The combination of a burner, an air-heating chamber extending above the burner tip or tips, an air-conduit arranged within the line of the burner tip or tips, conveying air upwardly into' the air-heating chamber, an escape-due the lower or inlet end of which is located above or around the upper part of the air-heating chamber and in such relation to the same that the tips ofthe name are swept inward around the upper part of the airheat ing chamber, and an Iinclosing globe, substantially as specified.

7. The combination of a burner, an air-heating chamber located above the burner-tip,hav ing an outlet for air at its lower end, an air conduit arranged within theline of the burnertip,conveying air upwardly into the air-heat ing chambeiyalnd also delivering air to the interior ofthe iiame at a point between the tip and the mouth of thev air-heating chamber, an inclosing-globe, and an escape-flue the inlet end of which is located above or around the upper part of the air-heating chamber and in such relation to the same that the tips of the flame are swept inward around the upper part of this chamber, substantially as specified.

8. The combination of a burner, an air-heating chamber extending above the burner tip or tips, an air-conduit arranged within the line of the burner tip or tips, conveying air upwardly into the air-heating chamber, an escape-flue the lower or inlet end of which is located abovevor around the upper part of the air-heating chamber and in such relation to the same that the tips of the {iame will be swept inward around the upper part of this chamber, an inolosingglobe,and an ai r-passage leading` to and opening into the globe at or near its top, substantially as specified.

9. The combination of aburner, an air-heating chamber extending above the burner-tip, having an outlet for air at its lower end, an airconduit arranged within theline of the burnertip, conveying air upwardlyinto the air-heat ing `chamber,and also delivering air to the interior ofthe iiame at a point between the tip and the mouth of the air-heating chamber, an inclosing-globe, an escape-flue the lower or inlet end of which is located above oraround the upper part of the air-heating chamber and in such relation to the same that the tips of the fiance will be swept inward around the upper part of this chamber, and an air-passage leading to and opening into the globe at or near its top, substantially as specified.

Signed at Philadelphia, in the county of Philadelphia and State of Pennsylvania, this 18th day of February, A. D. 1886.

CHARLES M. LUN GEEN.

Witnesses:

ALBERT. W. COX, EDWARD S. MCINTYRE.