US593730A

US593730A - Samuel g

Info

Publication number: US593730A
Authority: US
Publication date: 1897-11-16
Anticipated expiration: 1914-11-16

Description

(No Model.)

S. G. STODDARD.

GAS BURNER. NO. 593,730. Patented Nov 16,1897.

UNITED STATES PATENT FFICE.

SAMUEL G. STODDARD, OF BRIDGEPORT, CONNECTICUT, ASSIGNOB TO THE BRIDGEPORT BRASS COMPANY, OF SAME PLACE.

GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 593,730, dated November 16, 1897. Application filed July 16, 1897- Serlal No. 644,858. (No model.)

To all whom it mag concern.-

Be it known that I, SAMUEL G. STODDARD, a citizen of the United States, residing at Bridgeport, Connecticut, have invented a new and useful Improvement in Gas Burners, of which the following is a specification.

My invention relates chiefly to that class of gas-burners adapted to produce a Bunsen or heating flame. It is intended to provide a means for regulating the flow of gas through the burner.

In the accompanying drawings, Figure I represents, partly in vertical section, partly in elevation, so much of a Bunsen gas-burner as is necessary to show myinvention. Figs. II and III showa part of my device in course of construction and detached from the remainder. Figs. IV andV are sections through the line a: 00, Fig. I, showing the device in two positions. The last four figures are on an enlarged scale.

at 11; 2, a mixing-chamber the lower shell 21 of which is provided with gas-passages 22, windows or apertures 23, and slots 24; 3, a register-plate having a dished or depressed central portion 3l,perforations 32,and lugs 33.

In the example of my invention illustrated in the drawings the burner-base 1 is internally threaded at 11 to engage with an ordinary gas-fixture.

. a mixing-chamber 2, which, as shown, is comthe apertures 22 in the shell 21.

posed of two frusto-conical shells, united at their bases, and a superposed tubular portion. The lower shell 21 of the mixing-chamber has an axial depressed or dished portion within the burner-base 1, in which is pierced a plurality of gas-passages 22. A plurality of annularly-disposed slots 24 is cut through the shell 21, the. function of which will hereinafter appear. The usual air-admission apertures or windows-23 may be pierced in the shell 21 and may be provided with the ordinary registering shutter, which, as it forms no part of my invention, I have not shown in the drawings. 'The registering plate 3'is centrally dished at 31 to snugly fit the shell 21. It is provided with a plurality of perforations 32, corresponding in number and position to As shown,

At its upper end is secured the perforations 32 are of greater length than breadth and diagonal of the radius of the shell. Apluralityofradially-projectinglugs 33, corresponding in number and position to the slots 24, are secured to or preferably formed integral with the'plate 3, as shown in Fig. II, are bent down, as shown in Fig. III, and are passed through the slots 24 and curled over on themselves, as shown in Figs. I, IV, and V.

The operation of my device will be readily understood from an inspection of the drawings. It will be seen that the dished portion 31 of the plate 3 fits closely into theshell 21. These parts may be ground together to secure a more perfect joint, if desired. The

apertures

22 and 32 are adapted to register, as shown in Fig. IV, thereby permitting a free flow of gas into the mixing-chamber 2. By turning the plate 3 to the position shown in Fig. V the flow of gas is entirely out off. The 1 designatesa burner-base, screw-threaded.

lugs 33, passing through the slots 24 and bearing against the outside of the shell 21, serve by their shape and resiliency to hold the plate 3 rotatably inv place and act as handles by which it may be turned. It is advantageous, but not essential, that the plate 3 should act to entirely cutoff the gas, as a cock in the gas-fixture is ordinarily provided for this purpose. It is important, however, that the flow of gas through the apertures 22 should not be deflected from a vertical line, as it is largely the upward movement of the gas which acts after the manner of an injector to draw in a sufficient supply of air to mix therewith. It is found in practice that the diagonal lozengeshaped slots 32 in the plate 3 are well adapted to cut off a part of the gas, as shown in dotted lines, Fig. V, without deflecting it from a vertical line or disproportionately checking the flow, and that in these respects they are superior to the ordinary round apertures.

The principal advantage of the diagonal oval or lozenge-shaped slots over the round holes is in the greater motion of the plate required to close or open the apertures,whereby a more accurate adjustment is secured by an unskilful operator.

I am aware that many mechanical alterations, as reversing of the parts and other diameters greater than another diagonallydisposed in said plate and adapted to be turned into and out of register with said-firstnamed aperture, substantially as described.

2. In a gas-burner in combination a burnerbase, a chamber above said base, a shell formin g part of said chamber having an aperture, one or more, for the passage of gas, a registering plate having an aperture, one or more, adapted to be turned into and out of register with said first-named aperture, the central portions of said shell and said plate surroundingsaid apertures being dished or depressed to fit one into the other, substantially as described.

3. In a gas-burner in combination a burner base, a chamber above said base, a shell forming part-of said chamber, having an aperture,

one or more, for the passage of gas, slots in said shell exterior to said burner-base, a registering plate having an aperture, one or more, adapted to be turned into and out of register with said first-named aperture and lugs on said plate passing through said slots and bent or formed to engage with the outer surface of said shell and to hold said plate in contact therewith, substantially as described.

4. In a gas-burner in combination a burnerbase, a chamber above said base, a shell forming part of said chamber having a depressed pierced central portion within said burnerbase an'dslots exterior to'said base, a registering plate having a depressed pierced central portion adapted to fit within said shell and lugs on said plate passing through said slots and bent or formed to engage withthe outer surface of said shell and to hold said plate in rotary contact therewith, substantially as described.

SAMUEL G. STODDARD.

Witnesses:

Gno. L. COOPER, FRANK RHIND.