GB576871A - An improved tool for forming undercut recesses - Google Patents

An improved tool for forming undercut recesses

Info

Publication number
GB576871A
GB576871A GB945744A GB945744A GB576871A GB 576871 A GB576871 A GB 576871A GB 945744 A GB945744 A GB 945744A GB 945744 A GB945744 A GB 945744A GB 576871 A GB576871 A GB 576871A
Authority
GB
United Kingdom
Prior art keywords
tool
improved tool
undercut recesses
stop
forming undercut
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
GB945744A
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.)
Fairey Aviation Co Ltd
Original Assignee
Fairey Aviation Co Ltd
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 Fairey Aviation Co Ltd filed Critical Fairey Aviation Co Ltd
Priority to GB945744A priority Critical patent/GB576871A/en
Publication of GB576871A publication Critical patent/GB576871A/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
    • B23B51/0018—Drills for enlarging a hole
    • B23B51/0045—Drills for enlarging a hole by expanding or tilting the toolhead

Abstract

576,871. Drills and cutters. FAIREY AVIATION CO., Ltd., and TIPS, E. O. May 17, 1944, No. 9457. [Class 83 (iii)] A tool for undercutting blind holes, such as those required in riveting, as described in Specification 572,082, [Group XXV], has a split end formed with backed-off cutting- edges and countersunk at o to engage a conical shoulder on the partspherical end q of a rod r sliding within the tool- and retained by a circlip t. An adjustable screw stop c limits the expansion of the cutter due to pressure of the end q on the bottom of a blind hole. An opening s in the tool serves to pass a gauge to facilitate setting the stop c to give the undercut required.
GB945744A 1944-05-17 1944-05-17 An improved tool for forming undercut recesses Expired GB576871A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB945744A GB576871A (en) 1944-05-17 1944-05-17 An improved tool for forming undercut recesses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB945744A GB576871A (en) 1944-05-17 1944-05-17 An improved tool for forming undercut recesses

Publications (1)

Publication Number Publication Date
GB576871A true GB576871A (en) 1946-04-24

Family

ID=9872332

Family Applications (1)

Application Number Title Priority Date Filing Date
GB945744A Expired GB576871A (en) 1944-05-17 1944-05-17 An improved tool for forming undercut recesses

Country Status (1)

Country Link
GB (1) GB576871A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3507817A1 (en) * 1984-03-08 1985-09-26 Kabushiki Kaisha Miyanaga, Miki DRILL FOR PRODUCING AN UNDERCUT IN A HOLE
FR2569141A1 (en) * 1984-08-16 1986-02-21 Sarkis Sa Process and tool for drilling holes with a chamber, in particular in walls made of concrete, plaster or similar material
FR2575404A2 (en) * 1984-12-31 1986-07-04 Sarkis Sa Method and tool for drilling chamber-type holes, particularly in walls made of concrete, plaster or similar material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3507817A1 (en) * 1984-03-08 1985-09-26 Kabushiki Kaisha Miyanaga, Miki DRILL FOR PRODUCING AN UNDERCUT IN A HOLE
US4635737A (en) * 1984-03-08 1987-01-13 Kabushiki Kaishi Miyanaga Undercutting drill
FR2569141A1 (en) * 1984-08-16 1986-02-21 Sarkis Sa Process and tool for drilling holes with a chamber, in particular in walls made of concrete, plaster or similar material
FR2575404A2 (en) * 1984-12-31 1986-07-04 Sarkis Sa Method and tool for drilling chamber-type holes, particularly in walls made of concrete, plaster or similar material

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