CH227204A - Device for the precise drilling of holes without prior center punching of the workpiece. - Google Patents

Device for the precise drilling of holes without prior center punching of the workpiece.

Info

Publication number
CH227204A
CH227204A CH227204DA CH227204A CH 227204 A CH227204 A CH 227204A CH 227204D A CH227204D A CH 227204DA CH 227204 A CH227204 A CH 227204A
Authority
CH
Switzerland
Prior art keywords
workpiece
holes
precise drilling
center punching
prior center
Prior art date
Application number
Other languages
German (de)
Inventor
Hoerauf Michael
Original Assignee
Hoerauf Michael
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 Hoerauf Michael filed Critical Hoerauf Michael
Publication of CH227204A publication Critical patent/CH227204A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
CH227204D 1940-10-11 1942-04-28 Device for the precise drilling of holes without prior center punching of the workpiece. CH227204A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE881606X 1940-10-11

Publications (1)

Publication Number Publication Date
CH227204A true CH227204A (en) 1943-05-31

Family

ID=6831177

Family Applications (1)

Application Number Title Priority Date Filing Date
CH227204D CH227204A (en) 1940-10-11 1942-04-28 Device for the precise drilling of holes without prior center punching of the workpiece.

Country Status (3)

Country Link
BE (1) BE445334A (en)
CH (1) CH227204A (en)
FR (1) FR881606A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536706A (en) * 1941-05-21 1951-01-02 Genevoise Instr Physique Device for the measurement of lengths
US4780030A (en) * 1987-08-03 1988-10-25 Andrew Zudall Manual tap guide

Also Published As

Publication number Publication date
FR881606A (en) 1943-04-30
BE445334A (en)

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