FR402880A - Perfectionnements aux forets hélicoÏdaux - Google Patents

Perfectionnements aux forets hélicoÏdaux

Info

Publication number
FR402880A
FR402880A FR402880A FR402880DA FR402880A FR 402880 A FR402880 A FR 402880A FR 402880 A FR402880 A FR 402880A FR 402880D A FR402880D A FR 402880DA FR 402880 A FR402880 A FR 402880A
Authority
FR
France
Prior art keywords
twist drills
drills
twist
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
FR402880A
Other languages
English (en)
Inventor
Oscar Fredrickson
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 FR402880A publication Critical patent/FR402880A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/005—Cylindrical shanks of tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/02—Features of shanks of tools not relating to the operation performed by the tool
    • B23B2231/026—Grooves
    • B23B2231/0264—Axial grooves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/02—Features of shanks of tools not relating to the operation performed by the tool
    • B23B2231/028—Lugs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
FR402880A 1909-05-07 1909-05-10 Perfectionnements aux forets hélicoÏdaux Expired FR402880A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190910889T 1909-05-07

Publications (1)

Publication Number Publication Date
FR402880A true FR402880A (fr) 1909-10-19

Family

ID=32554554

Family Applications (1)

Application Number Title Priority Date Filing Date
FR402880A Expired FR402880A (fr) 1909-05-07 1909-05-10 Perfectionnements aux forets hélicoÏdaux

Country Status (2)

Country Link
FR (1) FR402880A (fr)
GB (1) GB190910889A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118691A1 (de) * 1981-05-12 1982-12-02 Gebrüder Heller GmbH Werkzeugfabrik, 2807 Achim Mehrbackenfutter und werkzeug sowie bohrersatz fuer das mehrbackenfutter und verfahren zum spanlosen formen mindestens eines teiles des werkzeuges

Also Published As

Publication number Publication date
GB190910889A (en) 1909-11-25

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