GB407186A - Improvements in valve seat grinding tools - Google Patents
Improvements in valve seat grinding toolsInfo
- Publication number
- GB407186A GB407186A GB607433A GB607433A GB407186A GB 407186 A GB407186 A GB 407186A GB 607433 A GB607433 A GB 607433A GB 607433 A GB607433 A GB 607433A GB 407186 A GB407186 A GB 407186A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grinding
- spindle
- wheel
- valve
- motor
- 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)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
407,186. Grinding valve-seats. JOHNSON, G. W., 47, Lincoln's Inn Fields, London.- (Hall Manufacturing Co. ; Toledo, Ohio, U.S.A.) Feb. 28, 1933, No. 6074. [Class 60.] A valve-seat grinding tool particularly for grinding the valve seats of internal-combustion engines is fitted with a pilot stem 10, Fig. 1, adapted to engage in the valve-guide, and the rotary grinding-wheel spindle 12 is driven from an electric motor 23 mounted eccentrically of the grinding spindle in a housing 25 rigid with and forming part of the tool. The stem 10 may be centred and secured in the valve guide by an upper tapered member coacting with a tapered nut threaded on the lower end of the stem. The grinding-spindle 12 carries a wheel 14 and encloses an inner shaft 11 which is eccentrically bored to receive the upper end of the pilot stem so that the grinding-wheel is eccentric to the axis of the pilot. The grinding-spindle is driven at high speed from the motor spindle 16 through gears 17, 18, and the shaft 11 is slowly rotated to give the wheel a planetary motion round the seating by worm gearing 19 shaft 20 and further worm gearing 21. The motor housing is secured by bolts 26 to the grinding-spindle housing 13 and a fan 24 is mounted on the shaft 16 for cooling the motor. The grinding pressure is regulated by a gauge rod 29 engaging the upper end of the pilot stem and secured to a screwed sleeve 30 threading on to a member 31. A handlever 32 extending from the tool housing engages a vertical spring pressed rod 33 so that the overhanging weight of the motor may be counterbalanced by the operator. In a modification, Fig. 2, the grinding-spindle 33<a> is eccentrically mounted with respect to the pilot stem 10<a> and is driven from the motor 38 through gears 35, 36. The pilot is mounted in a member 39 which may be rotated in the housing 34<a> to vary the offset of the grinding- wheel. A screw 42 adjusts the position of the tool, which is turned by hand to cause the grinding-wheel to travel around the valve seat.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB607433A GB407186A (en) | 1933-02-28 | 1933-02-28 | Improvements in valve seat grinding tools |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB607433A GB407186A (en) | 1933-02-28 | 1933-02-28 | Improvements in valve seat grinding tools |
Publications (1)
Publication Number | Publication Date |
---|---|
GB407186A true GB407186A (en) | 1934-03-15 |
Family
ID=9807914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB607433A Expired GB407186A (en) | 1933-02-28 | 1933-02-28 | Improvements in valve seat grinding tools |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB407186A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2209980A (en) * | 1987-09-18 | 1989-06-01 | Silk Engineering | Portable machine tool |
EP0334379A2 (en) * | 1988-03-24 | 1989-09-27 | L. & C. Steinmüller GmbH | Transportable cutting device with internal clamping |
US5259144A (en) * | 1992-08-17 | 1993-11-09 | Yeh Wen An | Planetary-type lapping device for finish-grinding the valve seat of a safety relief valve |
CN114888713A (en) * | 2022-05-20 | 2022-08-12 | 浙江合达铝业有限公司 | Diesel engine end cover gas hole seat face grinding mechanism |
-
1933
- 1933-02-28 GB GB607433A patent/GB407186A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2209980A (en) * | 1987-09-18 | 1989-06-01 | Silk Engineering | Portable machine tool |
US4923343A (en) * | 1987-09-18 | 1990-05-08 | Silk Engineering (Derby) Limited | Machine tool |
GB2209980B (en) * | 1987-09-18 | 1992-06-03 | Silk Engineering | A portable machine tool |
EP0334379A2 (en) * | 1988-03-24 | 1989-09-27 | L. & C. Steinmüller GmbH | Transportable cutting device with internal clamping |
EP0334379A3 (en) * | 1988-03-24 | 1990-11-14 | L. & C. Steinmüller GmbH | Transportable cutting device with internal clamping |
US5259144A (en) * | 1992-08-17 | 1993-11-09 | Yeh Wen An | Planetary-type lapping device for finish-grinding the valve seat of a safety relief valve |
CN114888713A (en) * | 2022-05-20 | 2022-08-12 | 浙江合达铝业有限公司 | Diesel engine end cover gas hole seat face grinding mechanism |
CN114888713B (en) * | 2022-05-20 | 2023-09-05 | 浙江合达铝业有限公司 | Grinding mechanism for air hole seat surface of end cover of diesel engine |
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