FR349693A - Automatic device for sharpening American bits - Google Patents

Automatic device for sharpening American bits

Info

Publication number
FR349693A
FR349693A FR349693DA FR349693A FR 349693 A FR349693 A FR 349693A FR 349693D A FR349693D A FR 349693DA FR 349693 A FR349693 A FR 349693A
Authority
FR
France
Prior art keywords
sharpening
american
bits
automatic device
automatic
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
Gustav Michael Mayer
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
Application granted granted Critical
Publication of FR349693A publication Critical patent/FR349693A/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F37/00—Fixed inductances not covered by group H01F17/00

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Ac-Ac Conversion (AREA)
FR349693D 1904-07-20 1904-12-10 Automatic device for sharpening American bits Expired FR349693A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE349693X 1955-12-08

Publications (1)

Publication Number Publication Date
FR349693A true FR349693A (en) 1905-06-08

Family

ID=6258824

Family Applications (1)

Application Number Title Priority Date Filing Date
FR349693D Expired FR349693A (en) 1904-07-20 1904-12-10 Automatic device for sharpening American bits

Country Status (2)

Country Link
CH (1) CH349693A (en)
FR (1) FR349693A (en)

Also Published As

Publication number Publication date
CH349693A (en) 1960-10-31

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