US742990A - Bunsen burner. - Google Patents

Description

PATENTED NOV. 3, 1903.

A. HQ HUMPHREY. BUNSEN BURNER.

APPLICATION FILED JAN. 1o, 190s.

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* UNITED i LS:iii'Zilrjs Patented November 3, 1903.

ALFRED H. HUMPHREY, OF KALAMAZOO, MICHIGAN.

BUNSEN BURNER.

SPECIFICATION forming part of Letters Patent NO. 742,990, dated November 3, 1903.

Application filed January 10. 1903. Serial No. 138,489. (No model.)

ci-ty of Kalamazoo, in the county of Kalamazoo and State of Michigan, have invented certain new and useful Improvements in Bunsen second, to provide an improved ready means Burners, of which the following/.is a specification.

This invention relates to improvements in Bu'nsen burners, and particularly to improvements in a needle gas-supply valve for a Bunsen burner.

The objects'of the invention are, first, to provide an improved construction of needlevalve in which the needle-point is so evenly supported and adjusted that there is an even delivery of the jet of gas around the point;

for supporting and guiding the needle of such a needle-valve; third, to provide an improved means of adjusting the needle of such a needle-valve.

Further objects relating to details of construction will definitely appear in the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification.

The invention is clearly defined, and pointed out in the claims.

A structure embodying the features of my invention is fully illustrated in the accompanying drawings, forming a part of this specification, in which- Figure 1 is a detail sectional view of my improved needle-valve for Bunsen burners, taken on a line corresponding to the irregular line 1 1 of Fig. 3. Fig. 2 is a vertical detail sectional view online 2 2 of Fig. 1, showing the rack on the side of the needle and the pinion by which itis actuated. Fig. 3 is a horizontal sectional view taken on line 3 3 of Fig. 1, showing the perforated diaphragm which supports and guides the needle in position andthe relation of the adjusting means.

In the drawings similar letters of reference refer to similar parts throughout the several views and the sectional views are taken looking in the direction of the little arrows at the ends of the section-lines.

Referring to the lettered parts of the drawings, the'gas-pipe Ais provided with a burnerbase B, screwed thereon in the usual way,

and this terminates in the needle-valve seat.

at its upper end. The needle D is preferably supported in the central position by diaphragms or horizontal .partitions e, which are suitably perforated for the free passage of the gas to the needlevalve above. The needle D is in a central aperture in these diaphragms e. These diaphragins are supported in position by friction, they being crowded closely'into the burner-base B.. Ou one side of the needle D is formed a rack D. A transverse sleeve E is inserted into the side of the burner-base B, making an opening into the same between the diaphragrns e e.

thumb-screw E is screw-threaded into this sleeve, and the inner end ot' this thumb-screw E is formed into an elongated small pinion E', which meshes with the rack D' of the needle D. The point of the needle fits into a usual valve-seat provided for needle-valves. The threads of the thu mb-screw E fit snugly and make a gastight connection, and as the pinion engages the rack the needle is prevented from rotation and is moved up and down very speedily by the manipulation of i" the thumb-screw, s0 that to turn up or-to turn down the gas requires the same manipu lation as in an ordinary kerosene-lamp. It is very important to be able to readily adjust the flow of gas in a Bunsen burner, particularly where incandescent mantles are used, as it needs a speedy regulation of the burner to secure the greatest eiiciency for the gas consumed by regulating exactly the mixture of the gas with the air in the burner so as to secure the very best proportions. This device is used with the improved burnertube C, which is slightly tapered upwardly with an abrupt expansion at the top, though it is well adapted for use with any kind of mixing-tube that may be used with a Bunsen` burner.

While I have shown my improved needlevalve for-Bumsen burners illustrated in the exact form in which I am now manufacturing it, which I consider possesses merit over any other owing to the superior guiding of the needle and its speedy adjustment, I am aware that the details of the structure can be greatly varied without departing frommy invent-ion. I, however, desire to claim the IOO O. specific details as well as the bx'oad features of the invention. The valve structure itself is adapted to other uses than in connection with Bunsen burners, and I desire to claim that structure broadly. It is obviously the main invention here presented and is also desired to be claimed in connection with the parts which make up a complete Bunsen burner.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. In a valve structure for Bunsen burners, the combination of the gas-supply pipe A; the burner-base B suitably secured thereto, and terminating in a needle-valve seat at 'its upper end; perforated diaphragms c e within the same; a needle D supported in suitable guiding-perforations in the diaphragms or partitions e e, and provided with a rack D upon one side; a laterally-arranged internally-screw-threaded tube or sleeve E" opening into the burner-base between the diaphragm's e; a thumb-screw E extending through the same, terminating at its inner end, in an elongated pinion E meshing with the rack D on the needle D; a suitable mixing-tube above the needle-valve, for the purpose specified.

2. In a valve structure for Bunsen burners, the combination of the gas-supply pipe A; the burner-base B suitably secured thereto, and terminating in a needle-valve at its upper end; perforated diaphragms e e within the same; a needle D supported in suitable guiding-perforations in the diaphragms or partitions e e, and provided with a rack D upon one side; a laterally-arranged internally-screw-threaded tube or sleeve E" opening into the burner-base between the dia.- phragm's e; a thumb screw E extending through the same, terminating at its inner end, in an elongated pinion E' meshing with the rack D' on the, needle D, for the purpose specified.

3. In a valve structure for Bunsen burners, the combination of the burner-base B termnating in a needle-valve seat at its upper end; perforated diaphragms e e within the same; a needle D supported in suitable guiding-perforations in the diaphragms or partitions e e, and provided with a rack D' upon one side; a laterally-arranged internally-v screw-threaded tube' or sleeve E opening into the burner-base between the diaphragms e; a thumb-screw E extending through the same, terminating at its inner end, in an elongated pinion E meshing with the rack D on the needle D, for the purpose specified.

4. lIn a valve structure for Bunsen burners, the combination of the burner-base hav` ing a gas-passage terminating in a needlevalve seat at its upper end; a'needle D suitably guided within the burner-base, and having a rack D formed in the side of the needle; a thumb-screw E having its inner end formed into a pinion adapted to mesh with said rack D', and screw-threaded through the side of said base, for the purpose specified.

5. In a valve structure fora Bunsen burner, the combination of a burner-baseB terminating in a needle-valve seat at its upper end, perforated diaphragms e e within the same; a needle D supported in suitable guiding-perforations in the diaphragms or partitions e e and provided with a rack D upon one side; a pinion engaging said rack between said diaphragms; and an operating-shaft forsaid pinion, for the purpose specified.

In witness whereof I have hereunto set my hand and seal in the presence of two witnesses.

ALFRED H. HUMPHREY. L. s]

Witnesses:

A. IRENE ADAMS, Oris A. EARL.

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