US653347A - Acetylene-gas burner. - Google Patents

Description

No. 653,347. Patented July l0, I900.

n. GENESE.

ACETYLENE GAS BURNER.

(Application filedlune 12, 18991) (No Model.)

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DAVID GENESE, OF BALTIMORE, MARYLAND.

ACETYLENE- -GAS BURNER.

SPECIFICATION forming part of Letters Patent No. 653,347, dated July 10, 1900.

Applieationfiled June 12,1899 Serial No. 720,210. (No model.)

To all whom it may concern.-

Be it known that 1, DAVID GENESE, a citizen of the United States, residing at Baltimore city, in the State of Maryland, have invented new and useful Improvements in Burners for Acetylene-Lamps, of which the following is a specification. My invention relates to an improved burner for acetylene-lamps.

It is one object of myinvention to provide 7 a burner for use with acetylene gas which by reason of its peculiar construction shall cause a solid bright flame to be produced without any part of the burner being interposed in the path of the flame to cause a shadow.

It is a further object of the invention to provide a burner which shall be non-oxidizable and practically self-cleaning.

Further objects of the invention relate to details of construction, as will more clearly hereinafter appear.

In the accompanying drawings I have shown a complete burner constructed according to my invention and have also illustrated the various steps followed in the manufacture thereof, the views being greatly enlarged.

In said drawings, Figure 1 is a View of a piece of sheet-platinum cut to the shape for forming a burner. Fig. 2 is a perspective view of the sheet, showing it punctured along the median line by a series of needle-pointed mandrels. Fig. 3 is a perspective view showin g the sheet bent upon the median line about said mandrels and folded at its side edges. Fig. at is a section through adie or press having the folded sheet and mandrels inserted therein forcompressing the portion of the sheet between the mandrels and the sides of said folded sheet firmly together. Fig. 5 is a perspective view of the burner as it appears when removed from the press or die, showing the platinum compressed about the mandrels. Fig. 6 is a section through a mold, showing the burner therein and surrounded or incased in a jacket of lava, porcelain, or other nonfriable or refractory substance. Fig. 7 is a view of the completed burner.

The reference-numeral 1 indicates a sheet of platinum which is cut to such shape that when bent or doubled upon itself on the median line (indicated by dotted lines at 2) it will have the form substantially of a flattened .is doubled upon itself, as shown in Fig. 3.

In proceeding according to my invention I take a sheet of platinum of the shape shown in Fig. l and puncture it along the line 2 by 7 means of a number of sharp-pointed mandrels 6, the points of puncture being indicated at 7. Each of these mandrels tapers uniformly from its butt to its point, and in piercing the sheet they are pushed through a greater or less distance, according to the size of the aperture desired. The mandrels are left in the openings made, and the part 3 is then doubled over them and the flaps 5 bent over the edge portions of the said part 3, as shown in Fig. 3, and soldered. or otherwise secured thereto. It will be seen that the mandrels are so arranged that the outer mandrels converge from the bottom to the top of the burner. The burner, with the mandrels therein,is now placed in a press or die 8, Fig. 4, and the platinum firmly pressed together between and at the sides of the mandrels and closely about the same, so that when removed from the press or die the burner has the appearance shown in Fig. 5. The mandrels 6 may now be removed, and the burner (indicated generally by the numeral 9 in Fig. 5) be soldered in the supply-tube of the lamp and be ready for use. I prefer, however, to inclose the platinum burner in a casing or jacket of porcelain, lava, or other non-friable or refractory substance. For this purpose I place the burner 9, without removing the mandrels, in a mold 10, Fig. 6, and thereby from about the burner a protective coating 11 of a substance such as named.

In Fig. 7 I have shown the burner complete or as it appears when removed from the mold 10 and with the mandrels withdrawn. This burner may be inserted and wedged in the opening of a supply-pipe of a lamp and held therein without the necessity of employing solder, as in the case of an ordinary gas-tip. The mandrels 6 are preferably of platinum,

as this substance will not expand under the heat of the mold and possesses no affinity for ISO such substances as lava, porcelain, or the like employed in forming the protective jacket or casing 11. On removing these mandrels from the burner a series of passages 12 will be left therein extending through the burner from bottom to top thereof and decreasing in diameter from their bottom to their top ends, as shown. In the drawings I have shown three passages extending through the burner; but I may employ only two or any number greater than two, according to the size of the burner desired; but whatever the number of these passages they are so disposed relative to each other that if projected upwardly they would meet at a common point. By this arrangement the separate flames issuing from the passages 12 are projected to a central point and unite to form a solid flame. The distance between the several orifices at the top of the burner is such, however, that the flames will unite by attraction and give the appearance of a solid flame issuing from a single orifice. In all burners for use with acetylene gas with which I am familiar two jets are projected toward each other on horizontal or inclined lines, so that the flames will unite to form what is known as a fish-tail flame. In all such constructions a portion of the burner lies in the path of the flame and will therefore cast a shadow, and such burners are further objectionable by reason of the fact that considerable energy is expended in forcing the two flames together, so that a greater amount of gas is consumed in producing a flame of given size than would ordinarily be the case, and a large part of each separate flame will be non-illuminating, owing to the force with which it issues from its burner or tube. In burners constructed according to my invention the objections noted are entirely overcome. The various flames are directed toward a central point, owing to the arrangement of a series of converging passages extending through the burner, but lying in the same plane, so that no part of the burner lies in the path of the flame, and owing to the proximity W of the discharge-orifices these separate flames unite by attraction practically immediately on issuing from the burner, so that, as stated, a solid white flame is produced of great intensity. By having the passage 12 tapering, as shown, I can regulate the size of the discharge orifices in accordance with the size of the burner, and by making the dischargeopenings i'ngs I thereby provide for discharging the gas from the burner with the necessary force withand the burner will be in a large measure selfcleansing.

I have mentioned platinum as the metal of which the burners are made and prefer its use for the reasons given; but it is evident that other metals capable of being manipulated as described could be employed without departing from the spirit of my invention.

.So far as other metals could be employed,

therefore, in carrying out myinvention I wish expressly to include them within the scope of my invention.

.Having thus fully described my invention, what I claim as new is 1. A burner for acetylene gas made of thin sheet metal and having molded about the same a protective jacket composed of a non-friable or refractory substance, substantially as described. I

2. A burner for acetylene gas made of malleable metal and incased in a hard protective jacket, substantially as described.

3. Aburner for acetylene gas made of a single sheet of metal doubled upon itself and provided with a series of independent gas-passages extending between the two thicknesses of metal, substantially as described.

4. A burner for acetylene gas made of a single sheet of platinum doubled upon itself and firmly pressed together at intervals, and atfording between such united portions a series of converging gas-passages, substantially as described.

5. A flat burner for acetylene gas having a series of non-communicating passages'extending therethrough in the same plane and converging toward the npper end of the burner, the outlet ends of said passages lying in the plane of the upper edge of the burner being at such distances apart that the separate flames issuing therefrom will unite by attraction into a solid flame extending in the same plane as the burner, substantially as described.

6. A burner for acetylene gas having a series of non-communicating, tapering passages extending therethrough in the same plane and converging toward the upper end of the burner, the outlet ends of said passages being at such distances apart that the separate flames issuing therefrom will unite by attraction into a solid flame extending in the same plane as the burner, substantially as described. of these passages smaller than the inlet-open- In testimony whereof I have hereunto set my hand in presence of two subscribing wit- DAVID GENESE.

nesses. out the necessity of increasing the pressure of the gas or the consumption thereof. The plati- Y num will not be corroded by the gas, so that the consumption will be practically complete Witnesses:

HARRY O. MATI-IIEU, WM. MENIKEN.

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