US1443907A - Burner - Google Patents

Description

Jan. 30,

. E. WITZBERGER.

BURNER.

FILED M'AY 9.1921.

ATTORNEY Patented Jan. 3%, 1923.

stares raiser ETIENNE wrrzisEnema, or CARNEGIE, rEN-N sYLvAN n.

I BURNER.

Application filed May 9,

To all 207mm 2'25 may concern:

Be it known that l, ETIENNE VVITZBERGER, a citizen of the United States, residing at Carnegie, in the county of Allegheny and State of Pennsylvania, have invented new and useful Improvements in Burners, of which the following is a specification.

This invention relates to burners, and more particularly to a burner for use in gas stoves and for similar purposes. 7

One of the main objects of the invention is to provide a burner of the character stated of very simple construction and which may be readily produced at small cost and is capable. of producing a very in tense heat. Another object is to provide a burner which may be used in connection with the ordinary valve or jet commonly used on gas stoves without necessitating any changes in the construction of the valve or the stove. Further objects will appear from the detailed description.

In the drawings Figure l is a top plan View of a burner constructed in accordance with my invention;

Figure 2 is a section taken substantially on line 2 -2 of Figure 1 showing a jet or valve of a known type for supplylng gas to the burner;

Figure 3 is a transverse section taken substantially on line 3 3 of Figure 2.

Figure 4: is a section taken on line 44 of Figure 2.

The burner includes a body 1 of rectangular cross-section which is formed of sheet metal, and a relatively narrow top plate 2 connected at its lateral edges by inclined plates 3 to the upper edges of the sides of body 1. The body is closed at one end by an end plate t and is provided at its other end with an end plate 5 through'which is secured the outer end of an inwardly flaring gas receiving and mixing tube 6 which is also formed of sheet metal and extends to within a short distance of end plate 4. Top plate 5 is provided with spaced series of perforations 7 each series of perforations forming a rectangle; though the entire top plate may be provided with uniformly spaced perforations, if so desired, or the perforations may be arranged in any other suitable or preferred manner.

The burner thus constructed may be supported between walls A and B of a stove structure in any preferred manner. In the,

1921. SerialNo. 468,036.

form illustrated, end plate 4-: of the burner is secured by a stove bolt 8 and a nut 9 to wall B. The other end of the burner is supported by a substantially U-shaped castlng or bracket 10 which is secured to wall A, i the end portion of the'burner fitting into this bracket. An opening 11 is provided through wall-A of'the stove structure and a suitable gas valveor jet 12 is 'positionedto dlscharge through this opening into the narrower end of tube 6, a space 13 of substantially three-eightlis of an inch being leftbetween the discharge end of jet '12 and open} ing' ll," though this space may be varied, as desired, as will be understood. The jet of gas discharged into tube 6 induces air into the tube, the gas and the air expanding as they flow inwardly of the tube thus increasing the velocity of flow of the mixture and obtaining thorough and intimate mixing of the gas and air. This mixture is discharged fromthe inner end of tube 6 and flows upwardly into the upper portion of the burner, being directed toward top plate 2 from each side by the inclined plates 3. The mixture of gas-and air escapes through openings where it is ignited in the usual way. By providing the tube 6 in conjunction with the burner I am enabled to mix a relatively great quantity of air with the gas thus insuring complete combustion while producing intense heat and effecting a material saving in gasconsumed; have found by repeated experiments that it is possible to produce a much more intense heat for a given quantity of gas consumed with this burner than with the ordinary type ofburner commonly used in gas stoves of known type. In addition, the burner does not become heated to such anextent as to tend to warp or twist, and it is therefore possible to make the burner out of sheet 'metal thus producing a burner of very small cost and of much less weight than a cast burner.

As clearly illustrated in Figures 2 and 3 of the drawings, the body or casing 1 is of substantially uniform cross-area and the inwardly flaring tube 6 co-operates with the walls of the body to provide a space which through the perforations of top plate 2 for the full length thereof thus producing a burner of very simple construction and low cost which is well adapted for use in heatin stoves of the radiant t pe or for other purposes.

l Vhat I claim is lrln a burner, an elongated hollow body provided with perforations through its top wall and a fuel receivingand mixing tube extending into said body from one end thereof to within a short distance of the other end of the body, the tube and the body being so constructed and related as to-provide a space between the tube and the walls of the body, which increases in cross-area toward the inlet end, of the tube, the increase in cross-area of said space facilitating flow of. gases within the casing from the discharge end of the tube toward the inlet end thereof so as to obtain uniform discharge of the gases throughthe perforations of said top wall.

p 2. In a burner, an elongated hollow body of uniform cross-area, and an inwardly flaring fuel receiving-and mixing tube extending into said body from one end thereof to within a short distance of the other end of said body.

8. In a burner, an elongated hollow body of uniform cross-section including a relatively narrow perforated top plate and upwardly and inwardly inclined plates connecting the lateraledges of said top plate to the sides of the body, and an inwardly flaring fuel receiving and mixing tube extending into the body from one end thereof to within a short distance of the other end of the body.

In testimony whereof I afiix my signature.

ETIENNE lVITZBERGER.

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