GB574041A - Improvements in valve seat grinding tools - Google Patents
Improvements in valve seat grinding toolsInfo
- Publication number
- GB574041A GB574041A GB21660/43A GB2166043A GB574041A GB 574041 A GB574041 A GB 574041A GB 21660/43 A GB21660/43 A GB 21660/43A GB 2166043 A GB2166043 A GB 2166043A GB 574041 A GB574041 A GB 574041A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stem
- sleeve
- grinding
- screwed
- eccentric
- 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
- B24B15/00—Machines or devices designed for grinding seat surfaces; Accessories therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
574,041. Grinding valve seats. DEHN, F. B. (Hall Mfg. Co.). Dec. 24, 1943, No. 21660. [Class 60] An eccentric valve seat grinding-tool comprises a stationary sleeve adapted to be mounted on a pilot stem, and carrying an encircling grinding-wheel spindle rotatable on its axis, and movable on a mount in a path eccentric to the sleeve. The valve seat 2 to be ground has an associated valve stem guide 4, in which is mounted a pilot stem 3, and adapted to be mounted on the stem is a sleeve 15 screwed at its upper end into a bushing 14 mounted in an opening 11 in a housing 10, the housing also having a lower and larger diameter opening 12 concentric with the opening 11. The sleeve receives an internal screwed depth gauge stem 16 and carries rotatably an eccentric sleeve 17, supported between a flange 18 and a gasket 19 and carrying at its upper end a spiral gear 21 ; the sleeve also has rotatably mounted thereon, on ball bearings 24, a hollow spindle 23 having screwed on its lower projecting end the hub sleeve 31 of a grinding-wheel 30. The sleeve 17 and spindle 23 are driven by a flexible shaft 35 connected to a shaft 37 in the housing 10, the shaft 37 having thereon a spur gear 38 driving a gear 39 on the spindle 23, and a worm 40 driving, through a countershaft, the gear 21; the grinding-wheel thus rotates at high speed and is moved slowly in an eccentric path around the seat 2. The depth gauge stem 16 and the stem 3 are connected together by a rod 46 screwed into the stem 16 and having a head 47 at its lower end adapted to be turned by a wrench etc.; the head is engaged by a washer 51 acted on by a spring 50 located in a nut 48 screwed on the stem 3 against a collet 49, so that the pilot stem 3 may be handled as a unit with the grinding-machine.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB21660/43A GB574041A (en) | 1943-12-24 | 1943-12-24 | Improvements in valve seat grinding tools |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB21660/43A GB574041A (en) | 1943-12-24 | 1943-12-24 | Improvements in valve seat grinding tools |
Publications (1)
Publication Number | Publication Date |
---|---|
GB574041A true GB574041A (en) | 1945-12-18 |
Family
ID=10166666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21660/43A Expired GB574041A (en) | 1943-12-24 | 1943-12-24 | Improvements in valve seat grinding tools |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB574041A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2556229A (en) * | 1949-02-17 | 1951-06-12 | Lysle W Stanfield | Pilot guide |
US2831296A (en) * | 1956-05-16 | 1958-04-22 | United Air Lines Inc | Grinding apparatus |
JPS552576U (en) * | 1979-04-20 | 1980-01-09 |
-
1943
- 1943-12-24 GB GB21660/43A patent/GB574041A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2556229A (en) * | 1949-02-17 | 1951-06-12 | Lysle W Stanfield | Pilot guide |
US2831296A (en) * | 1956-05-16 | 1958-04-22 | United Air Lines Inc | Grinding apparatus |
JPS552576U (en) * | 1979-04-20 | 1980-01-09 |
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