GB708847A - Improvements in or relating to a device and method for grinding the worn ends of valve actuating members in internal combustion engines - Google Patents
Improvements in or relating to a device and method for grinding the worn ends of valve actuating members in internal combustion enginesInfo
- Publication number
- GB708847A GB708847A GB23026/51A GB2302651A GB708847A GB 708847 A GB708847 A GB 708847A GB 23026/51 A GB23026/51 A GB 23026/51A GB 2302651 A GB2302651 A GB 2302651A GB 708847 A GB708847 A GB 708847A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grinding
- head
- shaft
- guide
- valve
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
708,847. Grinding valve-actuating members. AMMCO TOOLS, Inc. Oct. 3, 1951 [Oct. 10, 1950], No. 23026/51. Class 60 A grinding unit for grinding the face 62, Fig. 4, of a valve-actuating member 59 of an internal-combustion engine comprises a drive-shaft 6 guided in a valve-guide 58, and an abrasive element 7. If the rocker arms 59 are ground in their own cylinder head 50, they must first be removed from the head to facilitate removal of their actuating mechanism and then re-assembled on the head which must be detached from the cylinder block to allow removal of the valves 54 and insertion of the shaft 6. If it is desired not to disturb the head 50, the rocker arms 59 may be removed therefrom and assembled for grinding on a different head detached from its block. The shaft 6 may be an exact fit in the guide 58, or bear in a sleeve centred in the guide 58 by a tapered end-part 11 and a tapered nut 13 engaging projections or threads on the other end of the sleeve. After the shaft has been positioned in the guide 58, the abrasive element, which may comprise a stone or disc carrying an abrasive such as emery cloth, is screw-threaded onto the end thereof and rotated by a hand-held electric drill driving through a chuck 45. A spring 70 rocks the arm 59 about its shaft 60 to keep it in engagement with the abrasive element 7 as the latter is reciprocated to produce the curved surface 62. In Fig. 3, the unit is applied to the grinding of a tappet 40 in its position in a sidevalve engine from which the head has been removed.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US708847XA | 1950-10-10 | 1950-10-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB708847A true GB708847A (en) | 1954-05-12 |
Family
ID=22097943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB23026/51A Expired GB708847A (en) | 1950-10-10 | 1951-10-03 | Improvements in or relating to a device and method for grinding the worn ends of valve actuating members in internal combustion engines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB708847A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4449330A (en) * | 1982-04-14 | 1984-05-22 | Mccarthy Cornelius J | Resurfacing process and tool for installing catridge-type |
US4817340A (en) * | 1988-03-21 | 1989-04-04 | Gary Culp | Tool and method for repairing flat bearing surfaces |
-
1951
- 1951-10-03 GB GB23026/51A patent/GB708847A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4449330A (en) * | 1982-04-14 | 1984-05-22 | Mccarthy Cornelius J | Resurfacing process and tool for installing catridge-type |
US4817340A (en) * | 1988-03-21 | 1989-04-04 | Gary Culp | Tool and method for repairing flat bearing surfaces |
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