JPS492236B1 - - Google Patents
Info
- Publication number
- JPS492236B1 JPS492236B1 JP44096842A JP9684269A JPS492236B1 JP S492236 B1 JPS492236 B1 JP S492236B1 JP 44096842 A JP44096842 A JP 44096842A JP 9684269 A JP9684269 A JP 9684269A JP S492236 B1 JPS492236 B1 JP S492236B1
- Authority
- JP
- Japan
- 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.)
- Pending
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
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US78120768A | 1968-12-04 | 1968-12-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS492236B1 true JPS492236B1 (ja) | 1974-01-19 |
Family
ID=25122018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP44096842A Pending JPS492236B1 (ja) | 1968-12-04 | 1969-12-04 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3584420A (ja) |
| JP (1) | JPS492236B1 (ja) |
| DE (1) | DE1960814C3 (ja) |
| GB (1) | GB1291472A (ja) |
| SE (1) | SE372449B (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5235954A (en) * | 1975-09-16 | 1977-03-18 | Hitachi Ltd | Self-operation confirming circuit |
| JPS5250667A (en) * | 1975-10-22 | 1977-04-22 | Mitsubishi Electric Corp | Trouble checkup method |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4365444A (en) * | 1980-06-24 | 1982-12-28 | Chwae John C | Drill point grinding machine |
| US4455786A (en) * | 1980-09-26 | 1984-06-26 | Maysilles Lynn A | Twist drill sharpening machine |
| WO1999028082A1 (fr) * | 1997-11-14 | 1999-06-10 | Bigtool Co., Ltd. | Dispositif de polissage de foret |
| US20050053439A1 (en) * | 2003-09-09 | 2005-03-10 | Yuhong Wang | Two-flute twist drill |
| US7329173B2 (en) * | 2005-09-29 | 2008-02-12 | Yeo-Ching Song | Tool grinding machine |
| TWI803868B (zh) * | 2021-05-07 | 2023-06-01 | 香港商創國興業有限公司 | 鑽頭的重製方法 |
| CN115647945B (zh) * | 2022-11-02 | 2023-07-18 | 浙江地豪矿业集团有限公司 | 一种矿山机械钻头加工设备及方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1309706A (en) * | 1919-07-15 | Twist-drill | ||
| US2124093A (en) * | 1935-07-05 | 1938-07-19 | Carroll E Adams | Grinding machine |
| US3266194A (en) * | 1963-08-05 | 1966-08-16 | Winslow Product Engineering Co | Machine for grinding conical drill points |
| US3209493A (en) * | 1963-08-19 | 1965-10-05 | Winslow Product Engineering Co | Drill pointing machine |
| US3239966A (en) * | 1963-08-20 | 1966-03-15 | Richardson Allan | Apparatus for sharpening drills |
-
1968
- 1968-12-04 US US781207A patent/US3584420A/en not_active Expired - Lifetime
-
1969
- 1969-12-03 SE SE6916672A patent/SE372449B/xx unknown
- 1969-12-04 JP JP44096842A patent/JPS492236B1/ja active Pending
- 1969-12-04 GB GB59315/69A patent/GB1291472A/en not_active Expired
- 1969-12-04 DE DE1960814A patent/DE1960814C3/de not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5235954A (en) * | 1975-09-16 | 1977-03-18 | Hitachi Ltd | Self-operation confirming circuit |
| JPS5250667A (en) * | 1975-10-22 | 1977-04-22 | Mitsubishi Electric Corp | Trouble checkup method |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1291472A (en) | 1972-10-04 |
| DE1960814A1 (de) | 1970-06-25 |
| DE1960814C3 (de) | 1981-08-13 |
| US3584420A (en) | 1971-06-15 |
| DE1960814B2 (de) | 1981-01-08 |
| SE372449B (ja) | 1974-12-23 |