USRE4058E - Improvement in lamp-burners - Google Patents

Description

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ABRAHAM BURTIS AND MAR-Y A. VAN ALEN, OF BROOKLYN, AND 'ILLAM l). LUI)- LOW, OF NEW YORK, N.- Y. ASSGNEES OF A. W'. BROVNE.

Letters Patent No74,793-, dated February 25, '1868; reissue No. 4,058, dated July .5, ISl'O.

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The Schedule referred to in thon Letten Patent and. making part of the uns To all whom Iit may concern.-

Beit known that ARTHUR W. BBOWNE, of-Brooklyn, in the county of vKings andl State of New York, did invent an Improvement in Lamp-Burners; and the following is declared to be a correct description of the same.

This invention relates to Al'gand burners, in whicll the wicks employed are dat, and the air to tbe inner draught is introduced laterally. A wick-tube is made in such a 'manner that two thicknesses of wick pass through that portion of the wick-tube where the wickraising mechanism is applied, and then said wick-tube spreads, and the air for the central air-tube is brought in laterally, and the top of the tube is circular, to form au Argand flame.

In the drawing- Figure 1 is a vertical section of a lamp-burner, illustrating the invention, the plane of sect-loll being illdicated by the line y y, fig. 2. y

Figure 2 is a similar view, the section being in the plane by the line z z, iig. 1.

Figure 3 is an under-side view of the two tubular metallic shells forming the wick-tube, this view being the same as a horizontal section at :l: x, looking upward. A

Figure 4 is a horizontal section on the line w w.

A represents the lower screw-threaded part of the lamp-burner, which is to be screwed into the cap or top of the reservoir of an ordinary lamp.

The part A is slotted, as shown at a, fig. 1, to rcceive the lower end of the wick-tube B, which may be fastened to said part A by bending the slit portions of said tube under the edges of the slot a.

The form oi' t-be tube B will be understood by reference to fig. 1. The lower end of said tube is oblong, and rectangular in its horizontal section. Proceeding upward the tube B gradually flares outward,`and terminates at its upper end in the form of a cylinder.

O is a tube placed within the upper portion of the tube B.

The two opposite sides of the tube C, at its lower end, are made to converge toward the bottom, thus giving the lower end of the tube a V-form analogous to a wedge, while the upper portion of said tube C is cylindrical, and concentric with the cylindrical portion of the tube B.

The top of the tube O is liusll, ornearly so, with the tube B, and the tube C is held iu position by'means of the vertical stays b'b. These stays b b are hollow, and, corresponding slots being cut in-the tubes B and C, the external air is permitted to pass laterally, as indicated by the arrows in fig. 2.

D.is a conical jacket, constituting the outer shell ofthe burner, and made fast at top to the tube B.

E is a lamp-chimney supporter outside the jacket or cone D.

F Fl are shafts, bearing each a set of toothed wheels, f ff. The wheels ou one shaft may mesh or gear with those on the other.

A milled disk, F2, on the shaft F, enables all tllc wheels f to be put in motion simultaneously. l

The openings which conduct air through the hollow stays b b may be covered with wire-ganze, as shown at G, so as to prevent the communication offire or llame in C to the gases or vapolized oil which may be dil'- fuse-d in the space between the jacket I) and tube B, and thus avoid danger of exploding the oil ill the leservoir.

In like manner, in ordelrto prevent the communication of fire, by the spontaneous ignition of the dif-v fused gases, to the gas or vaporized oil in the chambered part A, and thence to the oil in the reservoir through the slots for the ratchet-wheels f, the said part A may be closed or covered with a gauze, at G'.

'.lhetwo wicks J J are introduced into the lower flattened portion of the tube B, and, both being caught between the wick-raisers, are elevated slulultaneonsl y by the rotation of the latter.

The upper ends of the wicks are deflected by the wedge-shaped lower end of the tube C, so as to rise at the opposite sides of said tube, iu doing which they are spread and curved till they ultimately assume a circular form in the annular orifice between the upper part of B and O of the wick-tube. Y

The wicks being projected suicently above the wick-tubes, and lighted, produce a round, hollow, or Argand flame, to the illternal surface of which air is supplied through O, as above explained. Suitable openings in the lamp-chimney supporter, alld at tlle lower end of the jacket D, alord free upward draught for the supply ot' air to the external surface of thc llame.

The wire-gauze G' not only serves as a guard against explosion, bllt prevents sudden rushing of the air npoll the llame during atmospheric vibrations or undue vdraughts. Each of the tubes B and C is shaped or What we claim, as the invention of thc said A.' W. f

BnowNE, is-

1. An Argand burner having all interior air-tube with a V-shaped lower portion, into which the air is 5. The double wick-raising wheels, made with penadmitted laterally, in combination with the exterior etrating points that interlock within or between the casing or wick-tube, 'substantially as specified. two thicknesses of wicks in the wick-tube of an Ar- 2. A wick-tube constructed to receive the twothiekgaud burner, substantially as specified. nesses of wick at the ratchets -or wick-raisers, and' 6. The gauze G, in combination with the wick-tube spread the same into a circular (or Argand) form' at O D, substantially as specified.

the flame, substantially as specified. Signed by us this 7th day of June', A. D. 1870. 3. An Argaud lamp-burner adapted to receiving two ABRAHAM BURTIS.- flat wicks, in combination with the wick-raisers, upon WM. D; LUDLOW. spindles or shafts outside of the wicks, and operating MARY A. VAN ALEN. upon the wicks, substantially as set forth. Witnesses: 4. The cone D, connected, at or near its upper end, l CEAS. H. SMITH,

. to the Argaud burner, substantially as specified. GEO.. T. PINCKNEY.

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