US2612790A - Carburetor choke mechanism - Google Patents

Carburetor choke mechanism Download PDF

Info

Publication number
US2612790A
US2612790A US4106348A US2612790A US 2612790 A US2612790 A US 2612790A US 4106348 A US4106348 A US 4106348A US 2612790 A US2612790 A US 2612790A
Authority
US
United States
Prior art keywords
pull wire
crank arm
carburetor
screws
holes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
Harvey G Moore
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ALEX D KARPOFF
Original Assignee
ALEX D KARPOFF
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ALEX D KARPOFF filed Critical ALEX D KARPOFF
Priority to US4106348 priority Critical patent/US2612790A/en
Application granted granted Critical
Publication of US2612790A publication Critical patent/US2612790A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
    • F02M1/02—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling being chokes for enriching fuel-air mixture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/5109—Convertible
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20396—Hand operated
    • Y10T74/20402—Flexible transmitter [e.g., Bowden cable]
    • Y10T74/20462—Specific cable connector or guide

Definitions

  • Figure 1 is a perspective view of a carburetor to which the choke actuating mechanism of this invention is shown attached.
  • Figure 2 is a fragmentary side elevation to a larger scale of the same.
  • Figure. 3 is a top plan view partly broken away of the parts shown in Figure 2.
  • Figure 4 is an exploded perspective view showing the choke actuating parts.
  • Figure 5 is a detail sectional view to a larger scale on line 5--5 of Figure 2.
  • Figure 6 is a fragmentary side elevation of a different form of carburetor but showing somewhat similar' choke actuating parts applied thereto.
  • a carburetor having an air intake portion 2 within which is mounted a choke valve 3 car- 1 ried by a rock shaft 4.
  • Thi rock shaft extends.
  • the frame member III has an extension l5 at one end to which is secured as by screws IS a loop shaped clamp I! which secures one end of a pull wire cover IS.
  • a pull wire 19 is axially movable through the cover and its inner end is operatively secured to the crank arm 5.
  • This post 20 i provided with a lateral perforation 25 therethrough to receive the inner end of the pull wire I9 which is secured in place therein as by a set screw 26.
  • the angle element 22 has a foot provided with a recess to receive the forwardly turned'end 29 of the crank arm 5 and a clamp plate 21 is secured to the angle element 22 as by means of clamp screws 28 and clamps the element 22 to the crank end 29.
  • the end of the pull wire is thus rockably mounted with respect to the crank arm 5 so that it is free to turn the crank arm by its longitudinal motion.
  • the opposite end of the pull wire cover is attached in any suitable way to the vehicle dashboard 30 as shown in Figure 4 and the opposite end of the pull wire is provided with a suitable manually controlled knob 3
  • FIG 6 a slightly difierentform of actuator is shown in which the crank arm carried by the shaft 36 which carries the choke valve 3'! is much shorter than in the construction shown in Figures 1 to 3 and 5, and the annular flange 38 which is normally intended to have secured thereto the automatic choke mechanism is provided with a pair of substantially diametrically oppositely positioned screw holes for screws at 40.
  • the frame element to which the pull wire cover clamp His applied is, in this type of carbureter, formed with spaced holes for receiving the screws and preferably this member 4
  • the pull wire I9 is then operatively attached to-the short crank arm 35 by means which may be the same as that heretofore described for at- 3 tachment to the crank arm .5 and which will therefore not be further described herein.
  • the opposite end of the pull wire and pull wire cover are mounted as previously described.
  • a pull wire casing a' clamp for one end of said casing carried by said frame member, a pullwire axially movable within said casing, a perforated post, an element on which said post is pivotally mounted, means for clamping said element to the outwardly turned end of said-crank arm, means clamping the inner end portion of 4 said pull wire within the perforation of said post, and manually operated means connected to the opposite end portion of said pull wire.

Description

Patented Oct. 7, 1952 UNITED STATES PATENT OFFICE oAaBUaE'ron CHOKE MECHANISM Harvey G. MoorahRochestefiN Y assignor to v Alex D. Karpoff, ,Bst0n,, Mass., doing businessas American Mufifler Co.
ApplicatibnfJulyZS, 1948;1SerialNo. 41,063
holes or other work upon the carburetor or asso-' ciated parts for receiving part of the manually operated mechanism, but which is readily secur able .to parts already in position when the automatic choke actuator has been removed.
Referring to the drawings,
Figure 1 is a perspective view of a carburetor to which the choke actuating mechanism of this invention is shown attached.
Figure 2 is a fragmentary side elevation to a larger scale of the same.
Figure. 3 is a top plan view partly broken away of the parts shown in Figure 2.
Figure 4 is an exploded perspective view showing the choke actuating parts.
Figure 5 is a detail sectional view to a larger scale on line 5--5 of Figure 2.
Figure 6 is a fragmentary side elevation of a different form of carburetor but showing somewhat similar' choke actuating parts applied thereto.
Referring first to Figures 1 to 3, and 5, at I is shown a carburetor having an air intake portion 2 within which is mounted a choke valve 3 car- 1 ried by a rock shaft 4. Thi rock shaft extends.
outwardly from the carburetor and at its outer end has secured thereto a crank arm 5 having an out-turned outer end as at 6. Substantially concentric with the shaft 4 the carbureter is provided with an annular outwardly extending flange I having angularly spaced therearound three lateral extensions 8 which are provided with parallel threaded openings for the reception of screws. This annular flange is provided for the attachment to the carburetor of automatic temperature controlled choke actuating means, but for the purpose of this invention this mean has been removed, leaving only the parts as shown. Two of the extensions 8 are made use of for the purpose of this invention for the securement to the carbureter of a, frame member I0. As shown this frame member ID is arcuate' in shape and its central portion l l is laterally off- 1- claim. (01. 14-501.)
set-iromthe-outer faceofthe flange 10 as shown best. in Figure-3. Thi isfor the purpose of rendering. more; accessible; the crank arm 5'for the attachment. of other parts thereto. 5 The frame member; ID. has a pair-of spaced holes 12 therethrough mating the two upper holes of the extension 8 and screws at [4 are passed through these holes and threaded into these holes of the carburetor.
The frame member III has an extension l5 at one end to which is secured as by screws IS a loop shaped clamp I! which secures one end of a pull wire cover IS. A pull wire 19 is axially movable through the cover and its inner end is operatively secured to the crank arm 5. This operative connection. as shown, includes a post 20 having areduced diameter portion, 2| (see Figure 5) journaled in an angle element 22 and held inv place therein by a washer 23 over which the inner end of the post 20 is headed as at 24. This post 20 i provided with a lateral perforation 25 therethrough to receive the inner end of the pull wire I9 which is secured in place therein as by a set screw 26. The angle element 22 has a foot provided with a recess to receive the forwardly turned'end 29 of the crank arm 5 and a clamp plate 21 is secured to the angle element 22 as by means of clamp screws 28 and clamps the element 22 to the crank end 29. The end of the pull wire is thus rockably mounted with respect to the crank arm 5 so that it is free to turn the crank arm by its longitudinal motion.
The opposite end of the pull wire cover is attached in any suitable way to the vehicle dashboard 30 as shown in Figure 4 and the opposite end of the pull wire is provided with a suitable manually controlled knob 3|.
In Figure 6 a slightly difierentform of actuator is shown in which the crank arm carried by the shaft 36 which carries the choke valve 3'! is much shorter than in the construction shown in Figures 1 to 3 and 5, and the annular flange 38 which is normally intended to have secured thereto the automatic choke mechanism is provided with a pair of substantially diametrically oppositely positioned screw holes for screws at 40. The frame element to which the pull wire cover clamp His applied is, in this type of carbureter, formed with spaced holes for receiving the screws and preferably this member 4| is provided with a downwardly'bowed portion which may engage the outer face of the flange 38 between the screws 40. The pull wire I9 is then operatively attached to-the short crank arm 35 by means which may be the same as that heretofore described for at- 3 tachment to the crank arm .5 and which will therefore not be further described herein. The opposite end of the pull wire and pull wire cover are mounted as previously described.
From the foregoing description of certain embodiments of this invention it should be evident to those skilled in the art that various changes and modifications might be made therein without departing from its spirit or scope.
I claim:
The combination with a carbureter, a rock shaft therein and extending outwardly thereof and provided with a crank arm at its outer end having an outwardly turned end, said carbureter having a wall portion having an outer face provided with spaced screw holes, of a frame memher having holes spaced to mate said screw holes.
screws securing said member to said wall Dortion, a pull wire casing, a' clamp for one end of said casing carried by said frame member, a pullwire axially movable within said casing, a perforated post, an element on which said post is pivotally mounted, means for clamping said element to the outwardly turned end of said-crank arm, means clamping the inner end portion of 4 said pull wire within the perforation of said post, and manually operated means connected to the opposite end portion of said pull wire.
HARVEY G. MOORE.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS
US4106348 1948-07-28 1948-07-28 Carburetor choke mechanism Expired - Lifetime US2612790A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US4106348 US2612790A (en) 1948-07-28 1948-07-28 Carburetor choke mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4106348 US2612790A (en) 1948-07-28 1948-07-28 Carburetor choke mechanism

Publications (1)

Publication Number Publication Date
US2612790A true US2612790A (en) 1952-10-07

Family

ID=21914513

Family Applications (1)

Application Number Title Priority Date Filing Date
US4106348 Expired - Lifetime US2612790A (en) 1948-07-28 1948-07-28 Carburetor choke mechanism

Country Status (1)

Country Link
US (1) US2612790A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2689582A (en) * 1950-02-01 1954-09-21 Albert L Coulter Manual adapter for automatic chokes
US2737825A (en) * 1951-10-20 1956-03-13 Emil O Plockelman Choke convertor
US2751186A (en) * 1953-03-30 1956-06-19 Norris W Glur Coolant control

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1209990A (en) * 1916-03-06 1916-12-26 Charles A Nevins Valve-operating mechanism.
US1458864A (en) * 1921-08-15 1923-06-12 John M Upton Pull attachment for electric-switch key sockets
US1524865A (en) * 1921-04-09 1925-02-03 Wheelerschebler Carburetor Com Carburetor
US1529900A (en) * 1924-05-02 1925-03-17 Charles M Walter Bowden controlling mechanism
US1630213A (en) * 1927-05-24 Operating device foe valves and the like
US1905539A (en) * 1930-10-01 1933-04-25 Chrysler Corp Control apparatus for radio receiving instruments
US1912678A (en) * 1929-07-13 1933-06-06 Clum Mfg Co Carburetor choke control
US2056549A (en) * 1934-08-25 1936-10-06 Sidney Cohen Speed control device
US2065167A (en) * 1932-09-23 1936-12-22 Bendix Aviat Corp Choke valve
US2107899A (en) * 1935-06-06 1938-02-08 Mueller Otto Manual control for automobile generators
US2117963A (en) * 1936-08-06 1938-05-17 Robert J Kalbreier Speed control
US2351485A (en) * 1940-12-09 1944-06-13 Borg Warner Control device
US2577260A (en) * 1948-07-28 1951-12-04 Alex D Karpoff Carburetor choke mechanism

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1630213A (en) * 1927-05-24 Operating device foe valves and the like
US1209990A (en) * 1916-03-06 1916-12-26 Charles A Nevins Valve-operating mechanism.
US1524865A (en) * 1921-04-09 1925-02-03 Wheelerschebler Carburetor Com Carburetor
US1458864A (en) * 1921-08-15 1923-06-12 John M Upton Pull attachment for electric-switch key sockets
US1529900A (en) * 1924-05-02 1925-03-17 Charles M Walter Bowden controlling mechanism
US1912678A (en) * 1929-07-13 1933-06-06 Clum Mfg Co Carburetor choke control
US1905539A (en) * 1930-10-01 1933-04-25 Chrysler Corp Control apparatus for radio receiving instruments
US2065167A (en) * 1932-09-23 1936-12-22 Bendix Aviat Corp Choke valve
US2056549A (en) * 1934-08-25 1936-10-06 Sidney Cohen Speed control device
US2107899A (en) * 1935-06-06 1938-02-08 Mueller Otto Manual control for automobile generators
US2117963A (en) * 1936-08-06 1938-05-17 Robert J Kalbreier Speed control
US2351485A (en) * 1940-12-09 1944-06-13 Borg Warner Control device
US2577260A (en) * 1948-07-28 1951-12-04 Alex D Karpoff Carburetor choke mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2689582A (en) * 1950-02-01 1954-09-21 Albert L Coulter Manual adapter for automatic chokes
US2737825A (en) * 1951-10-20 1956-03-13 Emil O Plockelman Choke convertor
US2751186A (en) * 1953-03-30 1956-06-19 Norris W Glur Coolant control

Similar Documents

Publication Publication Date Title
US2809064A (en) Hood latch locking device
US2612790A (en) Carburetor choke mechanism
US2764393A (en) Manually actuated control attachment for automatic choke
US2964303A (en) Carburetor metering adjustment
US2545965A (en) Master switch
US2577260A (en) Carburetor choke mechanism
US1322979A (en) Extension-control device
US2532861A (en) Throttle control device
US2524486A (en) Auxiliary accelerator pedal actuator
US1556179A (en) Combined choke and needle valve control
US1496610A (en) Carburetor-choke-valve control
US2529243A (en) Automatic control for carburetor throttle valves
US1404785A (en) Accelerator
US1536645A (en) Carburetor control
US1519022A (en) Choker controller
GB1165221A (en) Choke Control Mechanism for a Carburetor
US1260465A (en) Control device.
US2737825A (en) Choke convertor
US3575149A (en) Device for limiting the speed of an engine
US1465400A (en) Foot accelerator
US1764621A (en) Choke-operated throttle
US2695033A (en) Vacuum-responsive choke control
US1553493A (en) Accelerator attachment
US2588961A (en) Choke control
US1454512A (en) Accelerator for automobile engines