US396255A - Atmospheric gas-burner - Google Patents

Description

(No Model.)

' H. J. BELL.

- ATMOSPHERIC GAS BURNER.

No.396,255. Patented Jan. 15, 1889.

Wiifizewwea Invemiar.

M flair/702d Jjezl.

UNITED STATES PATENT EEIcE,

HAROLD J. BELL, OF GLOUCESTER CITY, NEWV JERSEY, ASSIGNOR TO THE WVELSBACH INCANDESOENT GAS LIGHT COMPANY, OF NEXV JERSEY.

ATMOSPHERIC GAS-BURN ER.

SPECIFICATION forming part of Letters Patent No. 396,255, dated January 15, 1889. Application filed May 10, 1888. Serial No. 273,455. (No model.)

To all whom it may concern: placed in or upon the upper end of the tube Be it known that I, HAROLD J. BELL, a citiin order to control the quantity of air admit- Zen of the United States, residing at Gloucested through the inlets 2, and thereby reguter City, in the county of Camden and State of late the intensity of the flame. An adjust- NewJersey, have invented new and useful Imable bell-shaped shield, 4, is supported 011 the 5 5 provements in Atmospheric Gas-Burners, of base of the burner-tube 1 in such a manner as which the following is a specification. to be capable of vertical movement to cover This invention relates to atmospheric gasand uncover the air-inlets 2. This shield is burners for incandescent gas-lighting; and it provided at the top with a neck, 8, the inter- IO consists in the combination of atube provided nal diameter of which is equal to the external 60 at or near its lower end with lateral air-inlets, diameter of the tube 1 and the length of so located as to allow said tube to be secured which is slightly greater than the diameter of into a base asufiicient distance to hold it firm the air-inlets 2. The shield is also provided without obstructing any part of said air-ininternally with a spiral ring, 5, located at lets, and a vertically-adjustable shield having about its center and supported therein at a 65 .a neck adapted to close said air-inlets or any distance from its walls by means of one or part of them at will, a spiral ring being semore arms, 6, so as to afford an air-passage cured to the inner'wall of the shield and conbetween said ring and the walls of the shield centric therewith to engage an external spiequal in area to the air-inlets 2 in tube 1.

2o ral groove or thread on the above-mentioned The ring 5 engages an external screw-thread 7o base, whereby a rotation of the shield will or spiral groove, 7, formed on the base of the cause its adjustment on the tube in an uptube 1, below the lateral air-inlets 2, so that ward direction to partially or wholly expose by rotating the shield in the proper direction the air-inlets (under the shield) for the purits neck 8 will cover or uncover the air-inlets pose of admitting alesser or greater quantity 2, as may be desired. It will be observed 75 of air to be mixed with the gas before it is that when the shield is raised, as shown in burned, or in a downward direction to abso- 2, a sufficient distance the air has free lutely close said air-inlets as the nature of the access to air-inlets 2, and yet the bottom of gas used may require. said shield hangs far enough below the air- The invention is illustrated in the accominlets 2 to arrest the disturbing influences of 80 panying drawings, in which external air-currents, being assisted, more- Figure 1 is a perspective view of my imover, by the partial obstruction offered by the proved atmospheric gas-burner tube with spiral ring 5. shield lowered to close the air-inlets. Fig. 2 is hat I claim is-- a vertical section of the same with shield ele- The combination, with an atmospheric gas- 85 vated to expose the air-inlets. Fig. 3 isan burner tube having lateral air-inlets 2 and elevation of the burner-tube and base with provided with an externally screw-threaded shield detached. Fig. 4 is an inverted plan or spiral-grooved base, 7, of a vertically-adof the shield with internal spiral ring. justable bell-shaped shield having a spiral The burner-tube l is provided with the ring, 5, to engage the external spiral groove 90 usual lateral air-inlets, 2, and beneath these on the base of the burner-tube, and a neck,'8, air-inlets it may have a horizontal finely-perto cover or uncover the lateral air-inlets, s11bforated plate or disk, 3, to divide the supply stantially as described. of gas into fine currents, whereby an intimate I11 testimony whereof I affiX my signature in mixture of gas and air can be produced in presence of two witnesses. v

the tube. The base of this tube 1, beneath the perforated disk 3, is internally screw- HAROLD BELL threaded to engage a gas-fixture. A burner WVitnesses: tip or spreader of any desired construction GEO. H. BARKER,

5o suitable for incandescent gas-lighting can be 0. SELDEN J OHNSONT

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