GB2206301B - Drill grinding machines - Google Patents

Drill grinding machines

Info

Publication number
GB2206301B
GB2206301B GB8814680A GB8814680A GB2206301B GB 2206301 B GB2206301 B GB 2206301B GB 8814680 A GB8814680 A GB 8814680A GB 8814680 A GB8814680 A GB 8814680A GB 2206301 B GB2206301 B GB 2206301B
Authority
GB
United Kingdom
Prior art keywords
grinding machines
drill grinding
drill
machines
grinding
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 - Lifetime
Application number
GB8814680A
Other versions
GB8814680D0 (en
GB2206301A (en
Inventor
Zachry Brierley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB8814680D0 publication Critical patent/GB8814680D0/en
Publication of GB2206301A publication Critical patent/GB2206301A/en
Application granted granted Critical
Publication of GB2206301B publication Critical patent/GB2206301B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
GB8814680A 1987-06-23 1988-06-21 Drill grinding machines Expired - Lifetime GB2206301B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878715078A GB8715078D0 (en) 1987-06-23 1987-06-23 Drill grinding machines

Publications (3)

Publication Number Publication Date
GB8814680D0 GB8814680D0 (en) 1988-07-27
GB2206301A GB2206301A (en) 1989-01-05
GB2206301B true GB2206301B (en) 1991-04-03

Family

ID=10619651

Family Applications (2)

Application Number Title Priority Date Filing Date
GB878715078A Pending GB8715078D0 (en) 1987-06-23 1987-06-23 Drill grinding machines
GB8814680A Expired - Lifetime GB2206301B (en) 1987-06-23 1988-06-21 Drill grinding machines

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB878715078A Pending GB8715078D0 (en) 1987-06-23 1987-06-23 Drill grinding machines

Country Status (2)

Country Link
EP (1) EP0296805A1 (en)
GB (2) GB8715078D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1230940B (en) * 1989-06-28 1991-11-08 Carrera Pietro Rui Clementina SHARPENING MACHINE FOR HELICAL POINTS, IN PARTICULAR FROM DRILL
US5649853A (en) * 1996-07-23 1997-07-22 Kuo; Chun-Lin Drill bit grinding machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2344420A (en) * 1941-05-09 1944-03-14 Bell Aircraft Corp Machine tool
US3494080A (en) * 1967-06-14 1970-02-10 Efrain Laguna Machine for grinding split point drills
DE3202362C2 (en) * 1982-01-26 1986-05-22 Fa. Gottlieb Gühring, 7470 Albstadt Device for sharpening a twist drill

Also Published As

Publication number Publication date
GB8814680D0 (en) 1988-07-27
GB8715078D0 (en) 1987-08-05
GB2206301A (en) 1989-01-05
EP0296805A1 (en) 1988-12-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930621