US1618030A - Carburetor - Google Patents

Description

. Feb. 15,1927.

A. E. WEAVER CARBURE'FOR Filed Aug. 8, 1921 3 wuenhw Albert E-Weaver.

Patented Feb. 15, 15327.

ALBEBT E. WEAVER, or rnnrnnaroms, "Infinite,- assrenon, BY ,ME-SNE ASSIGN- 'MEN'IS, TOIRA'T. SWARTZ, TRUSTEE, or mnranaronrs, INDIANA.

CARBUBETOB.

Application filed August 8, 1921 Serial No. 490,612.

This invention relates to a carburetor construction, and the pr me feature of the 1nvention is the provision, in connection with 1 tween the parts. a

A further feature of the invention is in so connecting the dome portion of the car.

buretor with the float containing bowl por tion thereof,'that various adjustments mayf be had for positioning the dome portion and the bowl portion ofthe carburetor for en gagementwith the parts to whichthey are attached and at the same time leave the dome and bowl portions so spaced that the body portion will be securely clamped and locked between the dome and bowl portions.

Other objects and advantages will be hereinafter more fully set forth and pointed out in the accompanying specification.

In the accompanying drawing The figure is a vertical central sectional view through the carburetor.

Referring to the drawing, l'indicates the bowl portion of the carburetor in which is mounted a float 2, said float controlling the admission of fuel into the bowl. Cooperating with the bowl 1 is a dome 3,the upper end of. which is provided with a coupling member 4 through the medium of which the carburetor is attached to the usual form of intake manifold (not shown). Between the bowl 1 and dome 3; is a cylidrical body por-.

' tion 5 which is preferably elongated, the

upper surface of the bowl 1 having a flange 6 thereon with which the lower end of the body portion 5 engages, and in order torform a perfect seal between the body portion and the flange, the outer face of thelowcr end of the body portion and the inner face of the flange 6 are oppositely tapered, as shown at 7, so that when the lower end of the body portion is forced against the flange they will wedge togetherand prevent any possibility of, leakage at this point.

The lower end of the dome 3 is likewise provided with a flange 8 for'the reception of the upper end of the cylindrical body portion 5, the upper end ofthe body portion fitting snugly within the flange and abutting against a shoulder 9 formed within the dome.

The three elements of the carburetor are locked together through the inedium of a tube 10, the lower end of the tube being,

threaded into a collar 11 on the bowl l, while the upper endof the tube is threaded into a V discharge opening 12 through the dome 3, a lock nut 13 being employed for locking the tube against rotation after it has been properly etqwithin the collar 11. The lower end of the tube 10 is preferably provided with threadshaving a pitch which is less than the pitch of the threads at the upper end of the tube, so that substantially a half turn of thetube into or out of the collar will permit a quarter turn of the dome onto the, upper end of the tube. ,By arranging the parts in this manner a minute adjustment between the bowl and dome may be had and which will permit the coupling member 4 or the intake 5 opening 14 for the bowl to be positioned at various angles with respect to each other, for proper connection with their respective parts without interfering with the perfect connection or seal between the ends of the 13 loosened and the tube 10 then rotated and so set that when the dome is again engaged with the end of the tube 10 and turned thereon until the cylindrical body portion is securely clamped between the domeand bowl, the coupling member 4 or the opening 1.4 will be so located with respect totheir former positions that they cylindrical body portion and the bowl and will readily connect with their respective parts. In this manner the coupling member 1 may be turned to any degree of an'gu-' larity with respect to the opening 14:, that may be desired for properly connecting these parts to the parts of the motor, andthis operation is accomplished without affecting any of theoperating parts of. the carburetor.

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

1 In a carburetor, an upright casing comprising a lower bowl portion providing a reservoir for liquid fuel, a cover havinga passage to register with an intake manifold and threads at the lower end ofsaid passage,

a cylindrical body between the bowl and: the

cover, an airintake pipe on the bowl hav-' ing an internally threaded portion coaxial with the passage in the cover but having a thread of different pitch, apipe section having its ends threaded to correspond to the cover may be fixed invarious angular posi tions with reference to each other while forming a'tight connection with the body portion, substantially asset forth.

'2. In a carburetor, an upright caslng co1nprising-alower bowl portion providing a reservoir for liquid fuel, a coverhaving a passage to register with an intake manifold and threads at the lower end of said pas sage, a'cylin'drical body between the bowl and'the cover, a valved intake pipe on the bowl having ail-internally threadedportion coaxial with thepassage in the cover, and. a

lpipe section having'threads at its ends corresponding to those on-the bowl and cover and providing with said intake pipe an air passage through the carburetor, substantially asset forth.

3. In a carburetor, an upright casing C0111- prising a lower bowl portion providing a reservoir for liquid fuel, acover having a passage to register with an intake manifold and threads at the lower end of said passage, a cylindrical body between the bowl and the cover, a-valved intake pipe on the bowl having an internally threaded portion coaxial with the passagerin the cover, a pipe section havlng threads at 1ts ends corresponding to'those on the bowl and cover and providing therewith a passage through the carburetor, said section serving as the 'air paesagethroughthe carburetor and a locknut on-thepipe wherebythebowl "and cover may be fixed in various angular positions with reference to each other whileforming a tight connection withthe body portion, substantially'as setiforth.

' In witness whereof, I have hereunto set 1I1Yl1t11l at Indianapolis, Indiana this thirtieth day of 'July, A. D. nineteen' hundred and twenty-one.

ALBERTE. WEA'VER.

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