US703794A - Carbureter. - Google Patents

Description

No. 703,794.v Patented July 1, I902.

J. W. KITTEN.

GARBUBETER.

(Application filed Se t. 9, 1901.) (N9 Model. 4 Shuts-Shea! I.

Patented July 1,1902; J. W. KITTEN. OAR BUBETEB.

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J. W. KITTEN.

CABBURETER.

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UNITED STATES PATENT OFFICE.

JOSEPH WV. KITTEN, OF CHICAGO, ILLINOIS, ASSIGNOR TO' SAFETY GAS- LIGHT 00., OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

CARBURETER.

SPECIFICATION forming part of Letterslatent No. 703,794, dated July 1, 1902.

Application filed September 9, 1 901. fierial No. 74,792. (No model.)

structed that the amount of gas conveyed to the generator or subflame for generating the gas-supply may be automatically controlled,

so that the supply at all times may be proportioned to the demand at the burners.

A further object is to provide means. for

producing dry gasand for maintaininguniformity of pressure in the reservoir whether one or the full number of burners be employed.

To this end my invention consists in the combination of elements hereinafter more particularly described and claimed.

In the drawings, Figure 1 is a side elevation, partly in section, of a portion of a carbureter embodying the features of my invention, the main portion of the supply tank or reservoir being broken away. Fig. 2 is a plan view thereof. Fig. 3 is a front end elevation. Fig. a is a plan view, in horizontal section, of a portion of my improved apparatus, showing means for shutting off a portion of the subflame from the generating-burner. Fig. 5 is a vertical sectional view'taken upon the line 5 5, Fig. l, viewed in the direction of the arrows there shown; and Fig. 6 is a sectional view in detail of a portion of the generatorburner, taken upon the line 5 5, Fig. et,viewed in the direction of the arrow there shown.

Referring to the drawings, 1 represents the main body of the reservoir of myimproved device, which is provided with a suitable opening for filling the same as well as with the usual means for producing an air-pressure therein. Formed upon or attached to the front end of said reservoir, which consists, preferably, of a hollow cylinder, is an extension 2 of the same height as the diameter of the reservoir, said extension having vertical walls, within which is placed a wick or packing of absorbent material 2, Figs. 4

and 5, for .the purpose of maintaining a supply of gasolene in contact with the walls of said extension regardless of the height of the liquid inthe main reservoir.

. 7 Attached to the extension 2 and extending across the front and upon two sides thereof is a burner, whichconsists of a hollow metal casing 3, in which is formed a burner-chamberAE, Figs. 1,2, 4, and 6, and in the top of which is formed the usual slots or burneropenings5, Figs. 2 and 6.

A metal flange 6, Figs. 1, 3, 5, and 6, is placed above and upon the outer edge of the burner to guard the flame which burns above said openings 5 to heat the walls of the extension 2, constituting 7c the generator.

Connected with one side of the casing 3 and preferably integral therewith is a casing 7, having aforwardly-extending portion 8, the

outer, end of whichis closed by means of a screw-plug 9. A vertical partition 10 is formed in ,saidcasing, which extends downwardly from the top ashort distance to a horizontal partition 11, which in turn connects with a partition 12, extending downwardly in dotted lines in Fig. 2) permits communica- 8 5 -tion between the two chambers.

An opening 16 serves in turn to connect the chamber 13 with the burner-chamber 4.

An overhanging cap-plate 17 is rigidly attached tothe top of the reservoir extension 2, go

said cap-plate extending laterally and forwardly, as shown, to-serve incidentally as a support for the several parts indicated, but primarily as a shield to guard the gas and air induct from'possible contact with. the sub- 5 flame which burnsabove the openings 5 and flange 6 and beneath said plate 17 Tapped on the plate 17 and depending therefrom is a tube 18, in which is fitted aneedle-valve 19 upon the upper end of a vertical valve-stem I 00 20, the lower end of which has a bearing in a plate 21, attached to the bottom of the extenerate in the reservoir.

sion 2. An arm 22 is rigidly attached to said valve-stem for manipulating the latter. The upper portion of the tube 18 is connected with the reservoir extension 2 by means of a tube 23. (Shown in full lines in Fig. 1 and indicated in dotted lines in Figs. 2 and 3.) Located above the plate 1'7 is a tube 24, communicating with a cylindrical chamber 25, to the top of which is in turn connected the main riser or distributing pipe 26. Surrounding the base of the tube 24 is a gauze screen 27, which permits a flow of air into the tube 24 while preventing thepassage of flame.

A tube 28 communicates with the cylinder 25 and also with the chamber 14, directly above the opening 15. Extending horizontally through the part 8 is a rock-shaft 29, having a bent arm 30, which is extended forwardly and laterally, so that the free end is in operative contact with a grooved collar 31, adj ustably attached by means of a set-screw to the valve-stem 20. Rigidly attached to the rockshaft 29 by means of a set-screw is a puppetvalve 32, adapted to normally close the opening 15 for the purpose hereinafter stated, the part being so adjusted that when the needlevalve 19 is closed the valve 32 will also be closed. A tube 33, Figs. 1, 2, 3, 4, and 6, in communication with the reservoir and controlled by means of a valve 34, but which forms no part of this invention, has its open end directed into the burner-chamber 4 and is used for starting the generator. The usual pressure-gage 35, connected with the reservoir by means of a tube 36, is employed to indicate the gas-pressure in the latter.

The operation of my improved device is as follows: Air being forced into the reservoir by means of a suitable pump, (not shown,) the valve '34 is opened and the carbureted air permitted to flow into the burner-chamber, from whence it escapes through the openings 5, at which it is lighted, the products of combustion escaping into the open air. The operation is continued until the gas begins to gen- The valve 34 is then closed and the valve 19* opened, when a jet of gas is forced upwardly into the mixing-tube 24, carrying with it through the screen 27 the requisite amount of air, which is mixed with the gas in the usual way. Upon opening the valve 19 the action of the screw-thread thereon causes the collar 31 to be moved downwardly, carrying with it the arm 30, thereby opening the valve 32 and permitting gas to fiow downwardly through the tube 28 and openings 15 and 16 into the burner-chamber 4, from whence it issues through the openings 5 and burns to heat the generator. The valve 19 is opened more or less in proportion to the demand for gas in the system and the number of burners employed. As the movement of the valve 32 is controlled by that of the screwactuated valve 19, through the action of the arm 30 and collar 31, it follows that the gassupply at the generator-burner. will be proportioned accordingly, thereby rendering the generator self-regulating to the extent indicated. Should the valve 19 beopened to supply one burner only, it follows thatthe backfiow of gas and the subflame therefrom would be correspondingly small; but should five burners be needed the movement of the valve to produce them would automatically result in causing the generation of the requisite quantity of gas. The economy and safety of my improved generator is therefore obvious.

It is of the utmost importance that the gas or vapor should be dry when admitted to the distributing-pipe. In order to accomplish this, the valve 32 should be so adjusted that when all the burners of the system are employed a sufficient volume of gas will be admitted to the burner to produce a flame of the requisite height to supply dry gas. In doing this, however, the flame becomes so low when but one or two burners are employed that the gas is liable to become wet and to condense rapidly. On the other hand, if an additional supply of gas is added under these conditions sufficient to produce dry gas it will cause an excessive generation of gas and a consequent increase in pressure in the reservoir. In order to overcome this difficulty, I provide means for decreasing the area of the burner, thereby en= abling the flame from the remaining portion to be raised sufficiently high to produce a dry gas i for a small number of burners. My improved device consists of a cut-off slide 37, (better shown in Figs. 3, 4, and 5,) which consists of a gate adapted to slide through a slot in the casing 3 and connected, as shown, to a lever 38, pivoted at 39 to a bracket upon the plate 17. Said gate is adapted to be moved inwardly a sufficient distance to cut off the flow of gas from a portion of the burnerchamber, thereby enabling the same quantity of gas to produce a higher flame in the remaining portion, and thus insure the generation of dry gas without increasing the pressure in the tank.

A guard-plate 40, Figs. 1, 3, 4, and 5, is attached to the bottom of the plate 21, which plate is provided with a slot 41, Fig. 4, through which the lever-arm 38 is extended, said slot serving to limit the movement of said lever.

Having thus described my invention, I claim 1. In a carbureter, a reservoir, a generatorburner, a distributing-pipe, a gas-ednction tube leading to said distributing-pipe,a screw-.

controlled needle-valve in said gas-eduction tube, a back-flow conduit connecting the generator-burner with the distributing-pipe, in combination with the valve 32 interposed in said conduit, said valve being mounted upon a rock-shaft, and a lever-arm upon said rockshaft in operative connection with said needle-valve.

2. The combination in a carbureter, of a reservoir, a generator extension connected therewith, a generator-burner adjacent to said extension, a distributing-pipe, a gas-eduction tube leading to said distributing-pipe, a

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, ver for actuating said gate.

In testimony whereof I have signed this 10 specification, in the presence of two subscribing witnesses, this 5th day of September, 1901.

JOSEPH W. KITTEN.

Witnesses:

D. H. FLETCHER, CHARLES L. HINE.

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