US233065A - Gas or vapor burner - Google Patents

Description

(No Model.)

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OF PITTSBUBG, PENNSYLVANIA.

GAS OR VAPOR BURNER.

SPECIFICATION forming part of Letters Patent No. 233,065, dated October 12, 1880.

Application filed July 10, 1880.

To all whom it may concern:

Beit known that I, CHARLES F. BURNAP, of Allegheny, county of Allegheny, State of Pennsylvania., have invented or discovered a new and useful Improvement in Gas and Vapor Burners; and I do hereby declare the following to be a full, clear, concise, and exact description thereof, reference being had to the accompanying drawing, making a part of this specification, which represents a vertical sectional elevation of my improved gas and vapor burner.

My present invention is designed more especially for burning gas or gasoline vapor in railway-cars, where the irregular motion of the car and drafts of air make it especially difficult to secure a stron g steady light with these materials.

My improved burner is constructed as follows: Within a metallic case, A, having, by preference, a double conical form, as shown, are arranged two concentric tubes, a b, the smaller tube, a, being arranged within the larger, b, and extended from the bottom plate, A', of the outer case upward through the outer tube, both terminating together near the top of theburner. The outer tube, b, bears against the perforated flange A2 of the case, and its foot or lower end rests in a socket, B, which is soldered or otherwise secured to the outer surface of tube a. The position of this socket is abreast of or in the plane of the arm B2 of the case and some distance from the base A.

The gasor vapor supply is introduced to the annular space between tubes a b as follows: An opening, c, leads from the inner face of the socket below the tube b, through an enlargement, c', within which is made a threaded socket, c2. A tubular nipple, O, has its inner end threaded and screws into this socket, and on its outer end is formed a similar thread, which screws into the interior thread of hollow or tubular arm B2. The bore e3 of this nipple coincides with the opening c, and opens into a supply-pipe, D, which leads from any convenient source of vapor or gas supply. The inner end of the nipple C and the abutting face in the socket c2 are made to fit tightly, so that as the nipple is screwed to place it will draw tightly on the socket B and make a tight joint in the (No model.)

socket without thenecessary use of gaskets or packing. This nipple also serves as an additional support for the socket B and tubes a b. At the upper end of these tubes is secured a ring, a, which closes the annular space between the tubes. Through this ring are made a series of perforations, h', through which gas or vapor passes upward in jets. These jets are burned as they escape from the perforations, and to sustain and perfect such combustion air is supplied from both the inner and outer sides as follows: Inlet-perfbrations e, in any desired number, are made in the lower cone of case A, below the arms B2. Part of the air eutering through these perforations may take a downward or lateral course through perforated diaphragm E, and through perforations a2 in the lower end of tube a to the interior of this tube, and thence upward to the inner surface of the iiame or jets, and also a part of the iniiowing air may pass directly upward between socket B a-nd case A, through perforated diaphragm E, and thence upward outside of the tube b through the perforated flange A2 to the outer surface of the flame or jets. These diaphragme E and i" are secured in any convenient way across the space between the outer case, A, and the under and upper edges, respectively, of the socket-piece B. Their function or purpose is to secure a steady uniform flow of air by preventing outside pulsations or irregularities in the air-currents from transmitting their iniiuence to the air at the burner or point of combustion.

Above the case A, and inclosing the upper end of tubes a b, is a globe-shaped support and air-detlector S. Itis secured in place by slippling over the end of A. The central swell or enlargement S affords room for expansion of air caused by heat from the iiame or heated tubes, and thereby a uniform velocity of air is secured. For convenience in construction, this deliector is made in two parts, s and s', which may be joined in any convenient way, as shown at the belt of greatest enlargement. A seat or ange, s2, is made around the base of the upper part, s, for receiving and supporting a chimney. The upward converging curve of this cap s deiiects or directs the outer current of air against and into roo the flame, and thereby better promotes combustion.

Above the tubes a Z, in their axial line, is a button, It, for deliectiug the llame outward somewhat, so as to give it a rounded or oval form. This button is supported on a stem, r, which restsits lower end in a socket, 1^',in base A. Toward its upper end a spider, It', supports the stem in the axial line of the tube. This button may be dispensed with, however, if desired, and still obtain very satisfactory results with the burner.

The arms B2 may be used for attaching or supporting the burner in place in a car orother place of use, and, while I have especially designed my improved burner for use in railwaycars, yet it may be used with advantage in buildings or other places for burning gas or hydrocarbon vapors for illuminating purposes.

I have found by extended experiments on railway-cars not only that a steady and clear light is secured by this burner from gas or gasoline vapor, but also that a very stronglight is also secured, which exceeds that of the Argand burner nearly or quite threefold.

I claim herein as my inventionl. In a vapor or gas burner, the combination of two tubes a b, arranged one within the other, with an annular space between the two, a gas or vapor supply passage leading to such annular space, a perforated discharge at the upper end of the space, an air-supply through the interior of the inner tube, and an air-supply around the exterior of the outer tube, with outer case, A, and upward extension S, suchV extension having an annular swell or enlargement, S', therein below the upper extremity of the tubes a b, substantially as set forth, whereby an ai r-expan sion chamber is formed for preserving a uniform rate of flow in the outer and inner air-supplies.

2. In combination with case A, having a tubular arm, B2, thereon, the inner and outer tubes, a b, socket B, secured to tube a and receiving the end of tube b, and tubular nipple (l, adapted to screw into both arm B2 and socket-piece B, and afford thereby a supplypassage to the space between the tubes a b, substantially as set forth.

3. The combination of tubes a, and b, socketpiece B, case A, perforated diaphragms E E, (letlector or cap S, the same being arranged, as described, with a gas or vapor supply passage to the space between the tubes, air supply opcnin gs or perforations through the outer case, between the diaphragms and airopenin gs or perforations through pipe a, below the lower diaphragm, substantially as and for the purposes set forth.

In testimony whereof I have hereunto set my hand.

CEAS. F. BURNAP.

Witnesses R. H. Wnrr'rLnsnY, (l. L. PARKER.

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