US1025816A - Carbureter. - Google Patents

Description

u MTED sTATns PATENT OFFICE.

JACOB MATTHIAS LOFTHOUSE AND EMILY ROSALIE BOOTY, or restart, WESTERN AUSTRALIA, AUSTRALIA.

CARBURETER.

To all whom it may concern:

Be it known that we, JAcoB MAr'rinAs LorTHoUsn and EMILY Rosanna BOOTY, subjects of the King of Great Britain, residing at Perth, Western Australia, and Commonwealth of Australia, have invented certain new and useful Improvements in Carbureters, of which the following is a specification.

()ur invention relates to a valve device for making carbureted air by charging atmospherio air with petrol or other volatile hydrocarbons and the'said device consists of a carbureter through which air is forced under pressure and from which the mixture produced is taken directly into the service pipes and without the medium of a gas storage tank, the object of our invention being an improved valve device whereby the predetermined proportion of petrol is automatically governed by the take off of the mixture and whereby the air and petrol or other volatile hydrocarbon is mixed in predeterfmined and approved proportions and irrespective of the amount of the take ofl of the mixture.

The construction and use of our device will now'be explained with the aid of the attached drawing in whichT- Figure 1 shows a vertical section while Fig. 2 is a detail elevation of the slotted bell.

In said drawing ais the valve casing or chamber having the concentric well a? for holding the mercury or other sealing agent and into which dips the inverted and floating bell b having the peripheral mixture exit slots b of any number andas clearly seen in Fig. 2. This bell has the guide rod .7) working in the bracket 12 secured to the casing a as shown. To this casing a at its top is connected the mixture take away pipe 6*. This floating bell carries a down tube 0 and which is operatively connected thereto by the lazy tongs movement a working on its fixed pivot 0 In this tube is formed the petrol inlet port 0 and said tube dips into a body of mercury d contained at the bottom of the central chamber d and said chamber is made integral with the valve case a. The tube 0 telescopes down and around another and inner tube 0 which is rigidly held in the chamber 03 This tube terminates in a drip point as e from whence the petrol falls into Specification of Letters Patent.

Application filed April 10, .911.

Serial No. 620,152.

the carbureting chamber 6 shown broken away in the drawlng.

The valve chamber a carries a bracket f having a split or spring eye f and in which by the screw f is adjustably held the petrol float chamber 9. By means of this adjustment bracket the vertical position of the petrol float chamber is regulated so as to govern the height of the petrol g in its chamber (Z of the casing a, and to said chamber d the petrol is fed by the pipes g from the float chamber g which latter chamher is supplied by the. pipe 9 from the petrol tank not shown. The casing is provided withthe pipes as j and 7' whose function is respectively to maintain an equilibrium of pressure within the valve chamber, the float chamber 9 and the petrol tank. The valve chamber is further provided with the pipes 70 and 70 through which the mercury as (Z anola. is introduced into their own chambers and these pipes further act as scour out passages and are furnished with suitable pet cocks.

The action of the appliance is automatic and is asfollows. In the drawing the bell b is shown in its lower position and the petrol inlet port 0 exposed and which posit-ions PatentedMay "z, 1912.

are maintained as long as there is notake off of mixture through pipe 6. such take off occurs the pressure beneath the bell b operates and causes the bell to rise and thereby exposing the needful area of the exit slots 6 thus permitting the mixture to pass through and into the upper portion of the chamber a and out by the pipe 12 The rise of the bell by means of the lazy tongs movement 0 depresses the tube 0 so causing the petrol inlet port 0 tobecome immersed in the petrol g and thus allowing said petrol to flow int.o.tl1e tube 0 and from thence down into the petrol discharge tube 0 from whence it issues at the drip point 6 into the carbureti'ng chamber 0 In this latter chamber the petrol meets the incoming air and wherebya gaseous mixture of a fixed quality is'generated. This newly madegaseous mixture proceeds upward through the chamber a and so through the now exposed exit slots 6 of the now raised bell I) end so to the service pipe I). The quality of the mixture is governed by the propor- As soon as tionate areas of the exit slots and the petrol inlet port It is apparent that the greater the consumption of the mixture the higher the bell will rise and consequently the deeper the immersion of the petrol inlet. port 0 Within the petrol g and thereby increasing the feed of the petrol to the carbureting cham ber and all in proportion with the take of? of the gaseous mixture through pipe I By therise or fall of the floating bell consequent on the demand for gaseous mixture it is obvious that the exit slots 6 and petrolinlet port 0 will respectively become exposed or immersed to the proportionate extent so governing the discharge of petrol at e to the carbureting chamber e The mercury d seals the petrol g and prevents it from ascending at the lower end of the tube 0. As soon as the consumption of mixture ceases the bell falls to zero as in the drawing so raising the bell and exposing the petrol port 0 and so shutting oi? the feed of the petrol from pipee-ek What We claim as our invention and desire to secure by Letters Patent is 1. A carbureter comprising in combination a casing having a carbureting chamber adapted to receive a supply of air, a chambeer to contaln a body of the liquid to be VOlatihzed and also having an exit for the mixture, said casing also having an annular chamber containing a sealing liquid, a bell for controlling the operation of the--latt er' by the movements of the former.

2. A carburetor comprising in combination a casing provided with an exit and having a carbureting chamber adapted to re ceive a supply of air and also chambers con taining bodies of sealing liquid, one of said chambers also containing a body of the liquid to be volatilized, a bell floating in the sealing liquid in one of said chambers and subject to the pressure of the mixture at saide'xit, a tube operative in the sealing liquidand also the liquid to be volatilized in the other chamber and embodying means ator controlling the supply of liquid to be volatilized in said carbureting chamber, and an operative connection between said bell and tube for depressing the latter to establish a supply of liquid to be" volatilized when said bell rises.

3. A carburetor comprising in combina, tion a casing provided with an exit and also having chambers therein containing bodies of sealing liquid, one of said chambers also containing a body of the liquid to be volatiliz ed, a carbureting chamber in said casing adapted to receive a supply of air, a bell floating in the sealing liquid in one of said chambers and subject to the pressure of the mixture at said exit, said bell also having exit j ports therein for the passage therethrough of the mixture from the carbureting chamber, a tube operative in the sealing liquid and also the liquid to be volatilized in the other chamber and embodying means for controlling the supply thereto of liquid to be volatilized in said carbureting chamber, and an operative connection between said bell and tube for causing predetermined relative movements thereof in reverse directions.

4. A carbureter comprising in combination a casing provided with an exit for the mixture and also having chambers therein containing bodies of sealing liquid, one of said chambers also containing a body of the liquid to be volatilized, a carbureting chamber in said casing adapted to receive a sup ply of air, a bell operative in one of said chambers and subject to the pressure of the mixture at said exit, said bell also having exit ports for the passage of the mixture from the carbureting chamber, a tube operative in the other chamber and embodying means for controlling the supply of the liquid to be volatilized in said carbureting chamber, and a lazy tong connection between said bell and tube for causing predetermined relative -movements of said ele ments in reverse directions.

5. A'carbureter comprising in combination a casing provided with an exit for the mixture and also having chambers therein containing bodies of sealing liquid, one of said chambers also containing a body of the liquid to be volatilized, said casing having a carbureting space adapted to receive a supply of air, a bell operative in one of said chambers and subject to the pressure of the mixture at said exit, a tube operative in the other chamber and embodying means for controlling the supply of the liquid to be Volatilized to said carbureting space, and a pipe leading into said tube for conducting therefrom the liquid to be volatilized 6. A carbureter comprising in combination a casing having a carbureting chamber adapted to receive a supply of air, said casing being also provided with an exit for the mixture and a chamber to contain a body of the liquid to bevolatilized, a liquid-contaming annular chamber being also formed in the casing, a bell operative in the liquid of said annular chamber and having exit ports for the passage of the mixture therethrough, said bell being subject to the pressure of the mixture at said exiteud the exit ports in the bell being controlled bythe set our hands in presence of two subscribliquid in which the bell operates, a valve for ing witnesses.

controlling the flow of liquid to be volatil- JACOB KATTHIAS LOFTHOUSE. ized to said c'arbureting chamber, and means EMILY ROSALIE BOOTY.

5 for maintaining said liquid inthe carbu- Witnesses:

reter casing at a predetermined level. RICHARD SPARROW,

In testimony whereof we have hereunto VICTOR DEVERELL.

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