GB639315A - Improvements in or relating to rotary cutting tools for operations such as cutting holes or circular slots - Google Patents

Improvements in or relating to rotary cutting tools for operations such as cutting holes or circular slots

Info

Publication number
GB639315A
GB639315A GB17344/48A GB1734448A GB639315A GB 639315 A GB639315 A GB 639315A GB 17344/48 A GB17344/48 A GB 17344/48A GB 1734448 A GB1734448 A GB 1734448A GB 639315 A GB639315 A GB 639315A
Authority
GB
United Kingdom
Prior art keywords
relating
operations
circular slots
bit
holder
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
GB17344/48A
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
Priority to GB17344/48A priority Critical patent/GB639315A/en
Publication of GB639315A publication Critical patent/GB639315A/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
    • 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
    • B23B51/0411—Drills for trepanning with stepped tubular cutting bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Abstract

639,315. Drills. BELL, H. T. June 28, 1948, No. 17344. [Class 83 (iii)] A drill holder 1 comprises one or more circular slots 3, 4, 5 to receive a removable cutting bit or bits 9, the latter being locked against rotation by means of a screw 7 passing through a bayonet slot 10 in each bit, the screw also serving to lock the holder to a pilot drill 11. Each bit is of cylindrical form being either split or continuous. The means for locking the bit or bits may be separate from that for locking the holder to the pilot drill.
GB17344/48A 1948-06-28 1948-06-28 Improvements in or relating to rotary cutting tools for operations such as cutting holes or circular slots Expired GB639315A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB17344/48A GB639315A (en) 1948-06-28 1948-06-28 Improvements in or relating to rotary cutting tools for operations such as cutting holes or circular slots

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17344/48A GB639315A (en) 1948-06-28 1948-06-28 Improvements in or relating to rotary cutting tools for operations such as cutting holes or circular slots

Publications (1)

Publication Number Publication Date
GB639315A true GB639315A (en) 1950-06-28

Family

ID=10093527

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17344/48A Expired GB639315A (en) 1948-06-28 1948-06-28 Improvements in or relating to rotary cutting tools for operations such as cutting holes or circular slots

Country Status (1)

Country Link
GB (1) GB639315A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5433560A (en) * 1994-02-09 1995-07-18 Duncan; Ronnie J. Apparatus for drilling holes in a workpiece
EP2695690A1 (en) * 2012-08-06 2014-02-12 Gozdarski institut Slovenije Increment borer accessory
US10391565B2 (en) * 2017-02-17 2019-08-27 Alain Gary Mazer Hole saw guide

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5433560A (en) * 1994-02-09 1995-07-18 Duncan; Ronnie J. Apparatus for drilling holes in a workpiece
EP2695690A1 (en) * 2012-08-06 2014-02-12 Gozdarski institut Slovenije Increment borer accessory
US10391565B2 (en) * 2017-02-17 2019-08-27 Alain Gary Mazer Hole saw guide

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