[go: up one dir, main page]

US1550530A - Valve grinder - Google Patents

Valve grinder Download PDF

Info

Publication number
US1550530A
US1550530A US669619A US66961923A US1550530A US 1550530 A US1550530 A US 1550530A US 669619 A US669619 A US 669619A US 66961923 A US66961923 A US 66961923A US 1550530 A US1550530 A US 1550530A
Authority
US
United States
Prior art keywords
valve
stem
flynn
shell
valve grinder
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
US669619A
Inventor
John H Flynn
Thomas P Tolbert
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.)
TOLBERT
Original Assignee
TOLBERT
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 TOLBERT filed Critical TOLBERT
Priority to US669619A priority Critical patent/US1550530A/en
Application granted granted Critical
Publication of US1550530A publication Critical patent/US1550530A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/32—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for rotating lift valves, e.g. to diminish wear

Definitions

  • This invention relates to internal combustion engines and has for its object the provision of an attachment in the nature of an automatic valve grinder which intermittently rotates the valve and its stem as the latter is opened and closed thereby keeping the valve and its seat free fromcarbon deposits and eliminates the cause and necessity for grinding the valves.
  • Figure 1 is a fragmentary view of an internal combustion engine showing the valve construction and the application of the valve grinder attachment.
  • FIG. 2 is a detail view of the valve.
  • Figure 3 is a detail view of the body of the attachment.
  • 10 indicates a valve of the type usually employed in internal combustion engines, and wherein the stem of the valve is indicated at 11. This stem normally reposes upon the lift rod 13 which operates through a suitable guide 12.
  • the attachment forming the subject matter of this invention includes a shell or cast- Serial No. 669,619.
  • ing 14 designed to fit over the lift rod guide to which it is secured or fixed relatively by means of a screw or other suitable fastening element 15.
  • This shell is formed with a reduced end portion 16 to closely surround the valve stem 11, being of a diameter to permit of free movement of the valve.
  • An adjustable thumb screw 17 is carried by this reduced end portion and is adapted to be re-. ceived by a spiral groove 18 formed in the valve stem 11 and of proper length to cause the valve to rotate incident to the opening movement thereof. Consequently, when the valve is opened and closed in the usual manner, it is given a partial rotation so as to provide for a grinding action between the valve and its seat, thereby preventing an accumulation of carbon beneath the valve or around the seat.
  • the motor operates with maximum efliciency, and eliminates the trouble and expense of having the valves ground ever so often. Should it be desired to discontinue the rotation of the valve and the grinding effect at any time, it is only necessary to turn the adjusting screw to remove it out of the spiral groove of the stem and this adjustment can be made in a few seconds.
  • Carried upon the thumb screw 17 is a jam nut 19 which prevents retrograde movement of the screw 17. After the thumb screw 17 has been properly adjusted, the jam nut is screwed tight against the portion 16 of the shell, thus preventing the screw 17 from being loosened by the vibration of the motor, or from any other reason.
  • the nut 19 is preferably provided with flat sides 20 so that a wrench may be used in tightening the same.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Description

Aug. 18,- 1925. 1,550,530
\ J.-H. FLYNN ET AL VALVE GRINDER Filed Oct. 19, 19 .5
' m VIII Jbkn/ fl. Flynn Wi -Hubert WITNESSzM ATTORNEY Patented Aug. 18, 1925.
UNITED STATES PATENT OFFICE.
JOHN H. FLYNN AND THOMAS P. TOLBERT, 0F GREENVILLE, SOUTH CAROLINA, SAID FLYNN ASSIGNOR TO SAID TOLBERT.
VALVE GRINDER.
Application filed October 19, 1923.
To all whom it may concern:
Be it known that we, JOHN H. FLYNN and THOMAS P. TOLBERT, citizens of the United States, residing at Greenville, in the county of Greenville and State of South Carolina, have invented new and useful Improvements in Valve Grinders, of which the following is a specification.
This invention relates to internal combustion engines and has for its object the provision of an attachment in the nature of an automatic valve grinder which intermittently rotates the valve and its stem as the latter is opened and closed thereby keeping the valve and its seat free fromcarbon deposits and eliminates the cause and necessity for grinding the valves.
It is also the purpose of the present invention to construct the attachment for the above mentioned purpose which can be installed for use without any material alterations in the valve structure, the only alterations being the provision of. a spiral groove in the valve stem, means being provided so that the rotation of the valve and the grinding effect can be dispensed with at any time.
The nature and advantages of the invention will be better understood when the following detailed description is read in connection with the accompanying drawing, the invention residing in the construction, combination and arrangement of parts as claimed.
In the drawing forming part of this application, like numerals of reference indicate similar parts in the several views, and wherein:
Figure 1 is a fragmentary view of an internal combustion engine showing the valve construction and the application of the valve grinder attachment.
Figure 2 is a detail view of the valve.
Figure 3 is a detail view of the body of the attachment.
Referring to the drawing in detail, 10 indicates a valve of the type usually employed in internal combustion engines, and wherein the stem of the valve is indicated at 11. This stem normally reposes upon the lift rod 13 which operates through a suitable guide 12.
The attachment forming the subject matter of this invention includes a shell or cast- Serial No. 669,619.
ing 14 designed to fit over the lift rod guide to which it is secured or fixed relatively by means of a screw or other suitable fastening element 15. This shell is formed with a reduced end portion 16 to closely surround the valve stem 11, being of a diameter to permit of free movement of the valve. An adjustable thumb screw 17 is carried by this reduced end portion and is adapted to be re-. ceived by a spiral groove 18 formed in the valve stem 11 and of proper length to cause the valve to rotate incident to the opening movement thereof. Consequently, when the valve is opened and closed in the usual manner, it is given a partial rotation so as to provide for a grinding action between the valve and its seat, thereby preventing an accumulation of carbon beneath the valve or around the seat. It is needless to say that under such conditions the motor operates with maximum efliciency, and eliminates the trouble and expense of having the valves ground ever so often. Should it be desired to discontinue the rotation of the valve and the grinding effect at any time, it is only necessary to turn the adjusting screw to remove it out of the spiral groove of the stem and this adjustment can be made in a few seconds. Carried upon the thumb screw 17 is a jam nut 19 which prevents retrograde movement of the screw 17. After the thumb screw 17 has been properly adjusted, the jam nut is screwed tight against the portion 16 of the shell, thus preventing the screw 17 from being loosened by the vibration of the motor, or from any other reason. The nut 19 is preferably provided with flat sides 20 so that a wrench may be used in tightening the same.
Vhile it is believed that from the foregoing description, the nature and advantages of the invention will be readily apparent, I desire to have it understood that I do not limit myself to what is herein shown and described and that such changes may be guide, means forholding the shell fixed relamovement is imparted to the valve stem tive to the guide said shell having a reduced as the latter reclprocates for the purpose portion arranged to surround the valve specified. 10
stem said stem having a spiral groove, and In testimony whereof We aflix our signaan adjusting screw carried by the reduced tures. 7
portion of the shell and adapted to be re- JOHN H. FLYNN. ceived by said groove whereby rotat-ive THOMAS P. TOLBERT.
US669619A 1923-10-19 1923-10-19 Valve grinder Expired - Lifetime US1550530A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US669619A US1550530A (en) 1923-10-19 1923-10-19 Valve grinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US669619A US1550530A (en) 1923-10-19 1923-10-19 Valve grinder

Publications (1)

Publication Number Publication Date
US1550530A true US1550530A (en) 1925-08-18

Family

ID=24687030

Family Applications (1)

Application Number Title Priority Date Filing Date
US669619A Expired - Lifetime US1550530A (en) 1923-10-19 1923-10-19 Valve grinder

Country Status (1)

Country Link
US (1) US1550530A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609804A (en) * 1949-12-31 1952-09-09 Gen Motors Corp Valve rotating device
US3090370A (en) * 1962-04-04 1963-05-21 Harold W Kimball Combustion engine valve
US4309966A (en) * 1980-03-20 1982-01-12 General Motors Corporation Eccentric, oscillating intake valve
US6516765B1 (en) 2002-02-05 2003-02-11 Caterpillar Inc Passively rotating valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609804A (en) * 1949-12-31 1952-09-09 Gen Motors Corp Valve rotating device
US3090370A (en) * 1962-04-04 1963-05-21 Harold W Kimball Combustion engine valve
US4309966A (en) * 1980-03-20 1982-01-12 General Motors Corporation Eccentric, oscillating intake valve
US6516765B1 (en) 2002-02-05 2003-02-11 Caterpillar Inc Passively rotating valve

Similar Documents

Publication Publication Date Title
US1550530A (en) Valve grinder
US1857005A (en) Valve mechanism for internal combustion engines
US1534866A (en) Valve
US2059359A (en) Float valve
US1976796A (en) Valve
US2297597A (en) Detachable gear head for valves
US1299571A (en) Air-valve for gas-engines.
US1785278A (en) Valve
US1780856A (en) Valve-operating mechanism
US1856825A (en) Valve
US1684745A (en) Adjustable locking device for valves and the like
US1730579A (en) Valve handle
US1331535A (en) Stop and waste valve
US1354582A (en) Valve
US1151449A (en) Pump-valve.
US1161406A (en) Push-rod for engines.
US1617599A (en) Carburetor
US1250639A (en) Valve.
US1449973A (en) Push-rod head
US1938443A (en) Engine governor
US1699767A (en) Combination faucet
US1324196A (en) Adjustable valve.
US1437156A (en) Controlling device for pet cocks
US2371938A (en) Valve grinder
US1484080A (en) Silencer for valve mechanism