US2571537A - Multiple gas burner for tipping-off glass articles - Google Patents

Description

Oct. 16, 1951 P. o. CARTUN 2,571,537

MULTIPLE GAS BURNER FOR TIPPING-OFF GLASS ARTICLES Filed Aug. 15, 1946 INvENToR: PAUL O. CARTUN, BY fr, .WWI/

/ HIS ATTORNEY Patented Oct. 16, 1951 MULTIPLE GAS BURNER FOR TIPPING-OFF GLASS ARTICLES Paul 0. Cartun, Cleveland Heights, Ohio, assignor to General Electric Company, a corporation of New York Application August 15, 1946, Serial No. 690,814

This invention relates to apparatus for manu- 2 Claims. (01. 158-104) facturing electric lamps and similar articles and more particularly to burners used for tipping-off and hermetically sealing evacuated or gas filled lamp bulbs. V

An object of my invention is to provide a new and improved gas burner.

Another object of my invention is to provide a device or burner which may be used for the expeditious and automatic performance of a tipping-off operation.

A further object of my invention is to provide a gas burner which will operate to locally heat a portion of an exhaust tube to sever the same from the bulb and automatically discharge the waste section of the exhaust tube from the burn- Further features and advantages of my invention will appear from the following detailed description of species thereof.

For a better understanding of my invention reference may be had to the following description taken in connection with the accompanying drawings and its scope will be pointed out in the appended claims.

Fig. 1 is a side elevation, partly in section, of the tipping-oil burner incorporating my invention.

Fig. 2 is a sectionalized view showing more in detail the tipping-off burner incorporating my invention.

Referring to Fig. 1 the tipping-off device therein comprises a burner head or support base I having elongated hollow arms 2 which may be for example detachable threaded hollow tubes or sleeves 2 having burner manifolds 3 extending parallel to each other and coextensive. Facing sides of arms 2 each have a plurality of passageways communicating with the hollow interior of arms 2 to provide burner openings 4. These burner openings 4 may be for example four, one thirty second inch openings, or jets positioned at a forty-five degree angle to the longitudinal axis of the hollow burner arms 2 and at a ninety degree angle to each other. The size of the burner openings, however, varies with the type of glass used. In this manner a sheet of flame is directed toward the center of the burner. Although the drawing indicates that the burner openings 4 are on a horizontal plane parallel with that of the burner arms, obviously the invention includes variation in which the openings are not on this horizontal plane. The burner arms 2, for example, may be formed as indicated in Fig. 2 with grooves or notches 5 providing beveled or flaring out sides 6 embodying the bumer openings 4.

The notches 5 are elongated along the arms 2 and, as will be apparent from the drawing, the beveled sides 6 are substantially equidistantly 'spaced apart within each notch 5 and between the opposed notches 5 so as to lie substantially at the corners of a square, the jet openings 4 being directed along the diagonals of said square toward a common center. The burner head I has an article supporting bracket 1 terminating in an annular seating collar portion I3 is alignment with the common center toward which the jet openings 4 are directed for positioning a vessel with its vitreous exhaust tube transverse to and between the burner arms 2 and in sealingrelationship to the burner. A vessel 8 with a base 9 and a vitreous exhaust tube In is indicated in Fig. 1 to show the relative position of vessel, base, and tube to the burner. The seating collar portion l3 has a gap M in the side thereof toward the distal closed ends of the arms 2 for passage of the tube I0 laterally therethrough and between the arms 2. Burner head I is also provided with a conduit II for connecting a gas supply to the burner head and to communicate with the hollow interior of the burner arms 2.

Fig. 2 is a sectionalized view showing more in detail the tipping-off burner of Fig. l and. incorporates the above described corresponding parts of Fig. 1. This view also shows in detail one means of seating the burner arms 2 and gas supply conduit II in the burner head I in order to provide a gas passageway I2 from the gas supply conduit II through the burner head I and into the burner arm manifolds 3.

In accordance with my invention I provide a tipping-oil burner which will regulate, check, expand and direct a current of gas to the position where it becomes admixed with the requisite amount of atmospheric air for perfect combustion. Accordingly I provide a burner directly fed from burner arm manifolds which checks, expands, and directs a current of gas to the nozzles or jets 4 of the burner. Thus, by means of the burner arm manifolds a stream of properly expanded gas, at a low pressure, without disturbing currents, becomes available for combustion. The burner operates to locally heat a portion of an exhaust tube to sever the same from the bulb and automatically discharge the waste section of burner manifolds of large enough capacity to properly expand, direct and regulate the current of gas and produces this gas at jets or burner openings designed to locally heat a portion of a vitreous exhaust tube to sever it therefrom. The burner tends toward expeditious and automatic performance of a tipping-off operation by providing an article supporting bracket 1' which may be automatically loaded and unloaded, and the waste evacuated in preparation for a repeat performance.

What I claim as new and desire to secure by Letters Patent of the United States is:

l. A gas burner comprising a hollow head portion having a pair of parallel, hollow arms extending therefrom, communicating therewith, spaced a small distance apart and having closed distal ends, the walls of the facing sides of said arms being provided adjacent their closed distal ends with opposed notches elongated along the length of the arms and having beveled sides and jet openings in said beveled sides communicating with the hollow interior of said arms, "the said beveled sides being substantially equidistantly spaced apart so as to lie substantially at the corners .of a square, said jet openings having their axes at substantially forty-five degree angles to the longitudinal axes of said arms and at substantially a ninety degree angle to each other to direct gas jets radially toward a com mon center, and a conduit for connecting a :gas

supply to said burner head and communicating with the hollow interior of said arms.

2. A gas burner comprising a block-shaped head portion having :spac'ed openings in a .face thereof, a gas supply opening in another face thereof and a passageway connecting the supply opening with each of said spaced openingsl a pair of parallel hollow arms secured in said openings in communication with said passageway and closed at their distal ends, opposed wall portions of said arms adjacent their distal ends each having therein a notch elongated along the arm and having beveled sides having jet openings therethrough to the interior of the respective arms, the said beveled sides being substantially equidistantly spaced apart so as to lie substantially at the corners of a square, and said jet openings being directed along the diagonals of said square toward a common center between said arms.

PAUL O. CARTUN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 817,750 Carroll Apr. 17, 1906 916,209 Smallwood Mar. 23, 1909 979,335 Reid Dec. 20, 1910 1,631,377 Loebe et al June 7, 1927 1,647,644 Madden et al Nov. 1, 1927 1,819,597 Eisler Aug. 18, 1931 1,936,426 Eisler Nov. .21, 1933 2,020,983 Zimber Nov. 12, 1935 2,215,100 Gustin Sept. 17, 1940 FOREIGN PATENTS Number Country Date 2,974 Great Britain of 1893 525,174 Germany May 20, 1931

Images