FR625459A - Drill bit for cylinders - Google Patents

Drill bit for cylinders

Info

Publication number
FR625459A
FR625459A FR625459DA FR625459A FR 625459 A FR625459 A FR 625459A FR 625459D A FR625459D A FR 625459DA FR 625459 A FR625459 A FR 625459A
Authority
FR
France
Prior art keywords
cylinders
drill bit
drill
bit
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
Charles Jupille
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 FR625459A publication Critical patent/FR625459A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/04—Drills for trepanning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/40—Flutes, i.e. chip conveying grooves
    • B23B2251/408—Spiral grooves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR625459D 1926-11-06 1926-11-06 Drill bit for cylinders Expired FR625459A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR625459T 1926-11-06

Publications (1)

Publication Number Publication Date
FR625459A true FR625459A (en) 1927-08-11

Family

ID=8987736

Family Applications (1)

Application Number Title Priority Date Filing Date
FR625459D Expired FR625459A (en) 1926-11-06 1926-11-06 Drill bit for cylinders

Country Status (1)

Country Link
FR (1) FR625459A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2832238A (en) * 1950-09-29 1958-04-29 Harry F Brinker Method of making a core drill and the like
DE3003697A1 (en) * 1980-02-01 1981-08-06 Gebrüder Heller GmbH Werkzeugfabrik, 2807 Achim Cutting tool for rock drill - has hollow shaft for extraction of cut material during drilling, and rear gripped by jaws

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2832238A (en) * 1950-09-29 1958-04-29 Harry F Brinker Method of making a core drill and the like
DE3003697A1 (en) * 1980-02-01 1981-08-06 Gebrüder Heller GmbH Werkzeugfabrik, 2807 Achim Cutting tool for rock drill - has hollow shaft for extraction of cut material during drilling, and rear gripped by jaws

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