US733424A - Bunsen burner. - Google Patents

Description

No. 733,424. FATBNTBD JULY 14, 1903. A. B. REDBLL. BUNSBN BURNER.A APPLICATION FILED APB. 22, 1903.

H0 MODEL.

Hulman@ 1 ivo. 733,424.

UNiTED STATES Patented July I4, 190.

'PATENT OFFICE.

ALVIN B. REDELL, OF CHICAGO, ILLINOIS, vASSIGNOR TO CHARLES R. LINDSAY, JR., OF CHICAGO, ILLINOIS.

BUNsEN BURNER.

srn'crrxcATIoN arming part of Letters Patent No. 733,424, dated Jury 14, 1903. Application filed April 22, 1903. Serial No. 153,745. (No model.)

To all whom t may concern:

Be it known that I, ALVIN B. REDELL, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Bunsen Burners, of which the following is a specification.

This invention relates to Bunsen burners, and refers particularly to an improved construction of such burners whereby a more complete mixture of air and gas is obtained and a more perfect control of the gas is had than is possible in the ordinary Bunsen burner, whereby also the singing noises common in the operation of these burners is obviated and their operation simplified and improved.

In the accompanying drawings, Figure lis a side elevation of a Bunsen burner embodying my invention. Fig. 2 is a transverse section on dotted line 2 2 of Fig. l. Fig. 3 is a Vertical sectional View on dotted line 8 3 of Fig. 2.

In the embodiment herein shown of my invention I provide an integral body portion l, comprising an internallyscrew threaded socket 2 at its lower end for securing the burner upon a gas-fixture. The body portion lis further provided with a tubular externally-screw-threaded stem 3, having at its upper end a central gas-discharge opening 4, somewhat smaller than the internal diameter of said stem,also with a ring 5,screwthreaded upon its inner circumference for a purpose to appear later herein. The ring 5 is supported by the integral side arms 6 and is knurled upon its outer circumference to facilitate securing the burner upon the gas-fixture. A closurecap 7 is provided for the upper end of the tubular stem 3 and has a downwardly-extending tapering closing-pin 8 on its interior, adapted to enter and close the gas-discharge opening 4. The closing-pin 8 has a small central perforation 9 to permit the passage at all times of a small quantity of gas from the tubular stem 3 to the Bunsen tube, to be hereinafter described, for maintaining a constant flame. The closure-cap 7 is internally screw-threaded to correspond with the tubular stem 3, upon which it is A Bunsen tube l2, having air-inlet openings 13 in its side walls near its lower end, is provided with the annular base 14, screwthreaded on its periphery to correspond with the screw-threads on the inner face of the ring 5, upon which ring the said Bunsen tube is rigidly mounted. A

In use the burner herein described is se cured onto the end of a gas iixture, (not shown,) and the supply of gas entering the closure cap 7 is regulated byy turning the knurled flange 1l at the base of said cap. The lian ge ll projects outwardly beneath the ring 5, so that its periphery may be grasped by the thumb and finger of the operator. Turning said cap raises or lowers it by reason of its screw-thread connection with the tubular stem 3 and moves the tapering closing-pin 8 out of or into the opening 4 to open said passage or to close it, and thereby to control the flow of gas through said opening. From the cap 7 the gas emerges through the openings l0 into the Bunsen tube l2, entering said tube near the lower margin of the air-inlet openings 13 and uniting with the air in said tube to form a combustible mixture. In practice it has been found that a number of small gasescape openings are preferable to one large opening, as by the use of a number of openings the singing and other disagreeable noises that occur in burners of this style are avoided.

The device herein illustrated and described is susceptible of various modifications in the form and arrangement of its parts without a departure from the spirit and scope of my invention, wherefore I do not limit myself to the particular construction herein set forth.

I claim as my inventionl. In a Bunsen burner, in combination, an

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integral body portion comprising a tubular stem and a ring,said stem having in its upper end a central opening, and said ring being screw-threaded upon its inner circumference; a tubular clos11reoap-having ascreW- vthread engagement with said stem and provided in its upper end with a gaseseape opening, said cap carrying a pin adapted to enter and close the 4central opening of the tubular stemg and a Buusen tube having at its lower end an annular base, said base being screwthreaded to correspond with the screw-threads upon said ring.

2. In a Bunsen burner, in combination, an integral body portion comprising a tubular stein and a ring, said stem having in its upper end a central opening; a tubular closurecap having a screw-thread engagement with said stem and provided in its upper end with a gas-escape opening, said cap carrying a pin having a conical tip adapted to enter and close the central opening of the tubular stem, Said pin also being perforated to permit the escape of a small quantity of gas for maintaining a constant llame; and a Bunsen tube secured to said rino.

3. In a Bunsen burner, in combination, an integral body portion comprising a socket, a tubular stem and a ring, said stein having in' its upper end a central opening, and said ring being screw-threaded upon its inner circumference; a tubular closure-cap having a screwthread engagement with said stem and provided in its upper end with a plurality of gasescape openings, said cap carrying a pin having a conical tip adapted to enter and close the central opening of the tubular stern, said pin also being perforated to permit the escape of a small quantity of gas for maintaining a constant ame; and a Bunsen tube having at its lower end an annular base, said base being screw-threaded to correspond With the screwthreads upon said ring.

ALVIN B. REDELL.

Witnesses:

L. L. MILLER, GEORGE L. CHINDAHL.

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