FR1138018A - Method and apparatus for sharpening drills - Google Patents

Method and apparatus for sharpening drills

Info

Publication number
FR1138018A
FR1138018A FR1138018DA FR1138018A FR 1138018 A FR1138018 A FR 1138018A FR 1138018D A FR1138018D A FR 1138018DA FR 1138018 A FR1138018 A FR 1138018A
Authority
FR
France
Prior art keywords
sharpening drills
sharpening
drills
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
Application number
Other languages
French (fr)
Inventor
Georges Coutant
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 filed Critical
Application granted granted Critical
Publication of FR1138018A publication Critical patent/FR1138018A/en
Expired 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
    • B24B3/30—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 and rotating the drill about its own axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR1138018D 1955-12-06 1955-12-06 Method and apparatus for sharpening drills Expired FR1138018A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1138018T 1955-12-06

Publications (1)

Publication Number Publication Date
FR1138018A true FR1138018A (en) 1957-06-06

Family

ID=9640973

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1138018D Expired FR1138018A (en) 1955-12-06 1955-12-06 Method and apparatus for sharpening drills

Country Status (1)

Country Link
FR (1) FR1138018A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3132450A (en) * 1960-11-25 1964-05-12 Edward Patrick Boddaert Machines for grinding the points of drills
FR2433996A1 (en) * 1978-08-22 1980-03-21 Kawaragi Mfg Co Jig ground twist drill - has plane cutting edges with lateral edges in centre and point symmetrical open areas on tip (NL 26.2.80)
EP0234396A2 (en) * 1986-02-13 1987-09-02 HAMMEDINGER, Albert Drill sharpening device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3132450A (en) * 1960-11-25 1964-05-12 Edward Patrick Boddaert Machines for grinding the points of drills
FR2433996A1 (en) * 1978-08-22 1980-03-21 Kawaragi Mfg Co Jig ground twist drill - has plane cutting edges with lateral edges in centre and point symmetrical open areas on tip (NL 26.2.80)
EP0234396A2 (en) * 1986-02-13 1987-09-02 HAMMEDINGER, Albert Drill sharpening device
EP0234396A3 (en) * 1986-02-13 1988-11-23 HAMMEDINGER, Albert Drill sharpening device

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