CH242676A - Center drill. - Google Patents

Center drill.

Info

Publication number
CH242676A
CH242676A CH242676DA CH242676A CH 242676 A CH242676 A CH 242676A CH 242676D A CH242676D A CH 242676DA CH 242676 A CH242676 A CH 242676A
Authority
CH
Switzerland
Prior art keywords
center drill
drill
center
Prior art date
Application number
Other languages
German (de)
Inventor
Zbrojovka Brno A S
Original Assignee
Zbrojovka Brno As
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 Zbrojovka Brno As filed Critical Zbrojovka Brno As
Publication of CH242676A publication Critical patent/CH242676A/en

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
    • B23B51/0426—Drills for trepanning with centering devices
    • 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
    • B23B51/0453—Drills for trepanning with ejecting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/136—Springs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
CH242676D 1943-06-08 1944-06-01 Center drill. CH242676A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE242676X 1943-06-08

Publications (1)

Publication Number Publication Date
CH242676A true CH242676A (en) 1946-05-31

Family

ID=5917181

Family Applications (1)

Application Number Title Priority Date Filing Date
CH242676D CH242676A (en) 1943-06-08 1944-06-01 Center drill.

Country Status (3)

Country Link
BE (1) BE456169A (en)
CH (1) CH242676A (en)
FR (1) FR904860A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3265104A (en) * 1964-02-24 1966-08-09 Sr John Gallo Tubular saw cutter with chip removal means
US7160064B2 (en) * 2004-04-06 2007-01-09 Abelardo Jasso Hole saw slug removal device

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3390596A (en) * 1965-09-01 1968-07-02 Trevathan Sales Corp Cutting head assembly
US3388620A (en) * 1966-08-04 1968-06-18 Frederic A. Rudolph Drilling bit for stacked sheets of paper and the like
EP0105935A1 (en) * 1982-09-21 1984-04-25 The Boeing Company Trepanning tool and method for generating holes in composite material
FR2640535B1 (en) * 1988-12-19 1994-07-08 Aerospatiale PRECISION STEELING TOOL FOR SANDWICH PANELS
FR2694719A1 (en) * 1992-08-14 1994-02-18 Haubois Claude Cutting ejection device of saw cover - comprises round plate supported by two guides, spring and two buffers, during cutting spring compresses, after cutting spring eases
US5813802A (en) * 1995-11-30 1998-09-29 House B.M. Co., Ltd. Drilling tool assembly and its center drill and cup shape drill
US5690452A (en) * 1996-06-27 1997-11-25 Baublits; David G. Spring loaded automatic plug ejector or hole saws
US5816752A (en) * 1996-09-09 1998-10-06 Benjamin; Darin L. Knock out device
US7001116B2 (en) * 2003-03-29 2006-02-21 Eazypower Corporation Workpiece removal device for a hole saw
US7766583B2 (en) 2003-03-29 2010-08-03 Eazypower Corporation Workpiece removal device for a hole saw and plug cutter
SI23897A (en) * 2012-08-06 2013-04-30 Gozdarski Inĺ Titut Slovenije Instrument in incremental drill
CN103752912B (en) * 2014-01-20 2017-05-10 杭州博锋金刚石工具有限公司 Perforating device using hole saw inner hole positioning and application method of perforating device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3265104A (en) * 1964-02-24 1966-08-09 Sr John Gallo Tubular saw cutter with chip removal means
US7160064B2 (en) * 2004-04-06 2007-01-09 Abelardo Jasso Hole saw slug removal device

Also Published As

Publication number Publication date
FR904860A (en) 1945-11-19
BE456169A (en)

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