IT1230940B - SHARPENING MACHINE FOR HELICAL POINTS, IN PARTICULAR FROM DRILL - Google Patents
SHARPENING MACHINE FOR HELICAL POINTS, IN PARTICULAR FROM DRILLInfo
- Publication number
- IT1230940B IT1230940B IT8921012A IT2101289A IT1230940B IT 1230940 B IT1230940 B IT 1230940B IT 8921012 A IT8921012 A IT 8921012A IT 2101289 A IT2101289 A IT 2101289A IT 1230940 B IT1230940 B IT 1230940B
- Authority
- IT
- Italy
- Prior art keywords
- drill
- sharpening machine
- helical
- points
- helical points
- Prior art date
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
- B24B3/26—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of the point of twist drills
- B24B3/28—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of the point of twist drills by swivelling the drill around an axis angularly to the drill axis
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8921012A IT1230940B (en) | 1989-06-28 | 1989-06-28 | SHARPENING MACHINE FOR HELICAL POINTS, IN PARTICULAR FROM DRILL |
EP19900111799 EP0405338A3 (en) | 1989-06-28 | 1990-06-21 | Sharpening machine for twist drills, in particular for drilling machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8921012A IT1230940B (en) | 1989-06-28 | 1989-06-28 | SHARPENING MACHINE FOR HELICAL POINTS, IN PARTICULAR FROM DRILL |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8921012A0 IT8921012A0 (en) | 1989-06-28 |
IT1230940B true IT1230940B (en) | 1991-11-08 |
Family
ID=11175391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8921012A IT1230940B (en) | 1989-06-28 | 1989-06-28 | SHARPENING MACHINE FOR HELICAL POINTS, IN PARTICULAR FROM DRILL |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0405338A3 (en) |
IT (1) | IT1230940B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5735732A (en) | 1996-07-05 | 1998-04-07 | Bernard; David A. | Precision drill sharpener and grinding wheel assembly therefor |
US6450864B1 (en) | 2000-10-13 | 2002-09-17 | Raphael W. Smith | End mill grinder with two independently adjustable grinding wheels |
CN107322378A (en) * | 2017-09-01 | 2017-11-07 | 贵州迈锐钻探设备制造有限公司 | A kind of bit grinding machine |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE189609C (en) * | ||||
FR812340A (en) * | 1936-01-15 | 1937-05-07 | Drill bit sharpening machine | |
US2142923A (en) * | 1936-08-05 | 1939-01-03 | Sellers William & Co Inc | Drill grinding machine |
FR1114627A (en) * | 1954-11-19 | 1956-04-16 | Realisations Et Etudes Mecaniq | Drill bit sharpening device |
FR1495629A (en) * | 1966-08-16 | 1967-09-22 | Sheffield Twist Drill & Steel | Machine for sharpening twist drills |
US3813822A (en) * | 1972-05-08 | 1974-06-04 | T Grob | Web thinning machine |
GB8715078D0 (en) * | 1987-06-23 | 1987-08-05 | Brierley Ltd Z | Drill grinding machines |
-
1989
- 1989-06-28 IT IT8921012A patent/IT1230940B/en active
-
1990
- 1990-06-21 EP EP19900111799 patent/EP0405338A3/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
IT8921012A0 (en) | 1989-06-28 |
EP0405338A2 (en) | 1991-01-02 |
EP0405338A3 (en) | 1991-07-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970625 |