US1042077A

US1042077A - Carbureter.

Info

Publication number: US1042077A
Application number: US52093609A
Authority: US
Inventors: Clement Brown
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-10-04
Filing date: 1909-10-04
Publication date: 1912-10-22
Anticipated expiration: 1929-10-22

Description

Patented Oct. 22, 1912.

2 SHEETS-SHEET 1.

INVENTOR:

wamsssss: M. K? QMK. a M

0. BROWN. GARBU RETBR: APPLIOATION FILED 00124, 1909.

1 ,O42,077 Patented Oct. 22, 1912.

2 SHEETS-SHEET 2.

WITNESSES:

U IT D snares PATENT anion.

CLEMENT BROWN, 0]? BIRMINGHAM, ENGLAND.

. GARBURETER.

Specification of Letters Patent.

Application filed Qctober 4,

Patented Oct. 22, 1912. 1909. Serial No. 520,936.

which can -be quickly assembled or dismounted.

In order that this invention may be clearly understood and more readily carried into practice, reference may be had to the appended explanatory drawings, upon which Figure 1 is a sectional elevation of a carbureter according to the invention. Fig. 2 is an elevation of the upper part of .the structure shown in Fig. 1, looking in direction of arrow Y. Fig. 3 is a sectional inverted plan on line w m Fig. 1. Fig. 4; is a sectional elevation of mixing chamber blank. Fig. 5 is an elevation of oneof the control valves. F 6 is a plan of the valve shown in Fig. 5. Fig. 7 is a sectional elevation of the mixing chamber with the elbow in position. Fig. 7 is a plan of the mixing chamber in Fig. 7. Fig. 8 is an elevation of the elbow blank before attachment to the mixing chamber, and Fig. 8 is'an end view thereof. Fig. 9 is a sectional elevation of the support for the bush of the control wire. Fig. 10 is an inverted plan, and Fig. 11 is a sectional elevation of the cap of the mixing chamber.

In the drawings, the mixing chamber a is a cylindrical tubulus having ports 6, 0,10- cated about midway between its extremities and diametrically opposite to each other. Supplementary uncarbureted air from the atmosphere enters the port I), and the combustible charge'egresses by way of the'port 0. The mixing chamber a is manufactured from a plain tubular blank shown in Fig. 4:, having the supplementary air inlet Z) and the mixture outlet 0, cut in the periphery of the tubulus. The latter opening has its vertical marginal, edges parallel at the upper part and inclining inward at its lower part as shown the dotted lines in Fig. 2.

At the middle part of the mixing chamber a is attached an elbow (5 formed of sheet metal, the partially finished blank being illustrated in Fig. 8. The central-part d of the blank is at this stage fiat but the ends (Z are semi-cylindrical, transverse slots 03 being cut in the blank at the juncture of the ends and the middle to allow of its being so formed. The blank is placed in position on the mixing chamber and bent therearound until the middle part (Z is cylindrical to fit the periphery of the mixing chamber. It will be obvious that at this position the vertical axis of the two semi-cylindrical ends d lie in the same vertical plane and thus, form a seam. Around the horizontal arm of the elbow is placed an annular collar 6, the bore of which is coned out, the largest diameter being remote from the mixing chamber.-

The horizontal arm of the elbow is expanded against the taper bore of the collar e and is also beaded over at its outer extremity 6 The elbow thus retains the collar in place. The collar periphery is screwed at e to receive a nut f. In the elbow mouth is disposed an axially split contractile ring 9 coned on its periphery 9' to fit the coned mouth of the elbow and cylindrical in its bore. An aperture f is provided in the face of the nut f, and a shoulder f to engage the outer face of the splitring g. This arrangement avoids screw threads on the induction pipe as it will be obvious that by suitably rotating the nut f, the split ring is pressed into the coned mouth of the elbow and is thereby contracted onto the induction pipe. The carbureter can also be quickly attached or detached. The mixing chamber has two outstanding circumferential projections a formed upon it one above and one below the elbow; these prevent axial relative movement between the elbow and the mixing chamber. The top edge of the latter is turned over to form a locking means for the cap of the chamber but will be described more particularly m connection with the valve structure.

At the top. part of the mixing chamber are disposed the valve controlling means comprising two sheet metal control members h, 7', arranged side by side to slide longitudinally and independently within the mixing chamber. The-valve it for the left half of the mixing chamber regulates the supplementary uncarbureted air port 25, while the member j on the right controls the mixture outlet port 0. These valves are preferably semi-cylindrical or segmental and are open at the top,

' uniform I the upper collar 9*.

but closed at the bottom by transverse partitlons 7c, 7r. Resting on the partitions 7.", 7a and arranged between the side walls face of the removable cap on top of the chamber. About the middle of the parti tions 7a, of the valves h and j are axially arranged nipples m, m, soldered to the end of the flexible inextensible members a, a forming actuating means for the valve, :1. flexible incompressible casing 0 surrounding each inextensible member at, n.

- Each incompressible casing 0 is anchored in an adjustable stop p screwed into a tapped bush 9 Fig. 9. This bush has two radial slots 9' inits periphery which extend the greater part of its length. The thread in the bush is slightly smaller in diameter at the part 9 cut by the slots 9* than at the upper unslotted part, while the thread on the periphery of the screwed stop vp is of diameter.- VVhen the stop is screwed into the bush, the slotted part of the latter is able to expand and exert a contractile effort on the stop. The latter is thus frictionally retained in the desired position without a locknut. The bush is fixed to the cap 1 by collars 9 g near the one end of the bush, one of the collars being at the upper face and the other at the lower. That part of the bush extremity shown by the dotted lines in Fig. 9 is formed parallel and is inserted in a-naperture r in the cap r, being then turned or beaded over to form The cap 71 is pressed. up from sheet metal and has its upper face perforated to accommodate the bushes Q. Two ledges 1* formed on the lower face each extend through a quarter of a circle and are sepa rated by interspaces r also extending through a quarter'of a circle. Said cap fits the top of the mixing chamber. The latter has its upper marginal edge turned over to form a flange a the said flange not being continuous but interrupted by interspaces a similar in extent to those in the cap. The upper faces of the ledges r engage the lower face of the flange a when in situ. be readily understood thatthe cap, valves and appurtenant parts can be collectively removed from the mixing chamber by simply rotating the cap through a quarter. of a revolution and withdrawing it. By a reverse process these parts can be attached, the ledges r engaging the flange if.

The mixing chamber at its lower part is attached to a platform 3 circular in plan and having a boss 8 for entrance of liquid fuel. Encircling the mixing chamber and contacting the periphery thereof is a split ring t similar to the one 9 in the coned mouth of the elbow except that it is formed with two circular apertures 4' -tracting the split collar to grip said It will elbow connection,

of two cones base to base, that is the section is an isoceles triangle with the base as bore. The lower conical face 15 of the split ring 25 fits into a coned recess in the platform while its upper conical face 26 is engaged by the conical interior of a nut to. The nut n is screw threaded on its periphery a to engage a tapped recess in the platform immediately above the coned recess. To release the mixing chamber from the platform the nut u is rotated through the split ring t to expand. By the double cone a contractile grip is exerted along the entire lateral bore of the ring.

The nozzle 2; from which the liquid fuel is sprayed has a conical seat 42 which pre vents the fuel from escaping. The .lower part of the nozzle has a depending stem '1; which spring a bearing against a removable cap w at its lower side and pressing the conical part a of the nozzle into petrol. tight contact with its seat. a: is a fiber joint washer. By this construction the nozzle may be moved without disturbing the fuel connections. Vertical holes w in the mixing chamber platform allow the main air supply to enter and pass through the choke tube y.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. A carbureter comprising a mixing chamber having inlet and outlet ports, two independently movable hollow valve members arranged'side by side to slide longitudinally within the mixing chamber and control said ports, each of said valve members having an open end, and compression springs contained in said hollow valve members extending through said open ends to bear against the mixing chamber.

2. In a carbureter, the combination of a mixing chamber having an inlet port and an outlet port, sliding semi-cylindrical members controlling said ports, a quickly detachable cap'afixed' to the top of said chamher, a split collar encircling said chamber and having a coned periphery, a platform having a coned mouth and means for conchamber.

3. In a carbureter, the combination of a mixing chamber having an inlet port and an outlet port, sliding semi-cylindrical members controlling said ports, a quickly detachable cap aiiixed to the top of said chamber, an elbow connection for egress from said chamher, a split collar having a coned periphery adapted to fit into the coned mouth 0 said said collar into said mouth.

4. In a carburetor, the combination of a mixing chamber having an inlet port and an outlet port sliding semi-cylindricalmembers controlling said ports, a quickly dea small angle to allow is encircled by a coiled compression and means for pressing 1 5 taehable cap affixed to the top of said chamher, a tapped bush secured to said cap, and a stop screwed therein said bush being of slightly smaller bore than the external diameter of-the stop.

5. In a carbnreter the combination of a mixing chamber having an inlet port for the air and an outlet port for the mixture of air and gas, and two sliding semi-cylindrical members arranged in the mixing chamber side by side to control said ports.

6. A oarbureter comprising a mixing chamber having inlet and outlet ports, a removable cap for the mixing chamber, two independently movable hollow valve memt eples of this patent may be bers arranged side by side to slide longitudinally within the mixing chamber and control said ports, the end of each of. said valve members adjacent to said cap being open, and compression springs contained in said hollow valve members extending through said open ends to bear against said En Witness whereof Ihave hereunto set my hand in the presence of two witnesses 0. BROWN. Witnesses:

ROWLAND L. Goon), WILLIAM A. DAVIS.

obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. G.