FR608786A - Sharpening device for twist drills - Google Patents

Sharpening device for twist drills

Info

Publication number
FR608786A
FR608786A FR608786DA FR608786A FR 608786 A FR608786 A FR 608786A FR 608786D A FR608786D A FR 608786DA FR 608786 A FR608786 A FR 608786A
Authority
FR
France
Prior art keywords
sharpening device
twist drills
drills
twist
sharpening
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
Pierre Lagorgette
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 FR608786A publication Critical patent/FR608786A/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
    • B24B3/247—Supports for drills

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR608786D 1925-12-30 1925-12-30 Sharpening device for twist drills Expired FR608786A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR608786T 1925-12-30

Publications (1)

Publication Number Publication Date
FR608786A true FR608786A (en) 1926-08-02

Family

ID=8976293

Family Applications (1)

Application Number Title Priority Date Filing Date
FR608786D Expired FR608786A (en) 1925-12-30 1925-12-30 Sharpening device for twist drills

Country Status (1)

Country Link
FR (1) FR608786A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439144A (en) * 1944-06-15 1948-04-06 Perkins John Device for sharpening drills

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439144A (en) * 1944-06-15 1948-04-06 Perkins John Device for sharpening drills

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