GB557335A - Annular boring tool - Google Patents

Annular boring tool

Info

Publication number
GB557335A
GB557335A GB7575/42A GB757542A GB557335A GB 557335 A GB557335 A GB 557335A GB 7575/42 A GB7575/42 A GB 7575/42A GB 757542 A GB757542 A GB 757542A GB 557335 A GB557335 A GB 557335A
Authority
GB
United Kingdom
Prior art keywords
cutters
tube
annular
work
cutting elements
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
GB7575/42A
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 GB7575/42A priority Critical patent/GB557335A/en
Publication of GB557335A publication Critical patent/GB557335A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/14—Configuration of the cutting part, i.e. the main cutting edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/40—Flutes, i.e. chip conveying grooves
    • B23B2251/408—Spiral grooves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/56—Guiding pads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/112—Projections

Landscapes

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

Abstract

557,335. Annular drills. GRUENBERG, J. June 3, 1942, No. 7575. [Class 83 (iii)] An annular boring tool 4 has a number of cutters which come into action successively, either singly or in pairs so that each cutter removes only a fraction of the total material removed from the work. The cutters 5 ... 10 make overlapping cuts of the form indicated in Fig. 3. the cutters 5, 6 coming first into operation and the cutters 9, 10 acting last on the outer and inner boundaries respectively of the cutter. Protrusions 11 ... 13 on each side of the tube 4 may be provided with balls to steady the drill and maintain the alignment. For large diameters the tube 4 may be built up of sections with longitudinal joints such as 14, 15. When a hole is formed completely through the work the inner core becomes detached and may be utilized. The cutting edges are formed on the ends of spiral webs extending along the inside and outside of the tubular drill, the webs being either formed integrally with the tube or secured thereto. The number of cutting elements may be varied. In a modification the tool body may be provided with inclined slots instead of spiral ribs, the slots being fitted with adjustable cutting elements.
GB7575/42A 1942-06-03 1942-06-03 Annular boring tool Expired GB557335A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7575/42A GB557335A (en) 1942-06-03 1942-06-03 Annular boring tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7575/42A GB557335A (en) 1942-06-03 1942-06-03 Annular boring tool

Publications (1)

Publication Number Publication Date
GB557335A true GB557335A (en) 1943-11-16

Family

ID=9835760

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7575/42A Expired GB557335A (en) 1942-06-03 1942-06-03 Annular boring tool

Country Status (1)

Country Link
GB (1) GB557335A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533475A1 (en) * 1982-09-27 1984-03-30 Hougen Everett STRAWBERRY ALESER
GB2167983A (en) * 1984-11-01 1986-06-11 Nitto Kohki Co Annular hole cutter
US4813819A (en) * 1982-09-27 1989-03-21 Hougen Everett D Method for cutting holes
US4952102A (en) * 1982-09-27 1990-08-28 Hougen Everett D Annular hole cutter
US5145296A (en) * 1982-09-27 1992-09-08 Hougen Everett D Apparatus and method for cutting holes
EP0603121A1 (en) * 1992-12-16 1994-06-22 HILTI Aktiengesellschaft Tubular drill
US5803678A (en) * 1995-06-20 1998-09-08 American Saw & Mfg. Company Hole cutting tools
US5842820A (en) * 1997-01-23 1998-12-01 Lee Valley Tools Ltd. Cutter for use in forming dowels, plugs, and tenons
US6004082A (en) * 1998-03-03 1999-12-21 Lee Valley Tools Ltd. Tenon cutter
US6099214A (en) * 1997-01-23 2000-08-08 Lee Valley Tools, Ltd. Cutter for use in forming dowels, plugs, and tenons
US6099211A (en) * 1998-03-03 2000-08-08 Lee Valley Tools Ltd. Miniature tenon cutter
US6263929B1 (en) 1999-08-26 2001-07-24 Lee Valley Tools Ltd. Dowel maker
USD639829S1 (en) 2009-11-13 2011-06-14 Lee Valley Tools, Ltd. Tapered shoulder tenon cutter
AT509139B1 (en) * 2009-12-01 2012-12-15 E Hawle Armaturenwerke Gmbh DRILL FOR BORING UNIT
EP2987577A1 (en) * 2014-08-08 2016-02-24 wolfcraft GmbH Hole saw

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533475A1 (en) * 1982-09-27 1984-03-30 Hougen Everett STRAWBERRY ALESER
US4813819A (en) * 1982-09-27 1989-03-21 Hougen Everett D Method for cutting holes
TR23592A (en) * 1982-09-27 1990-04-20 Hougen Everett D HOLE BREAKER IN RING
US4952102A (en) * 1982-09-27 1990-08-28 Hougen Everett D Annular hole cutter
US5145296A (en) * 1982-09-27 1992-09-08 Hougen Everett D Apparatus and method for cutting holes
GB2167983A (en) * 1984-11-01 1986-06-11 Nitto Kohki Co Annular hole cutter
EP0603121A1 (en) * 1992-12-16 1994-06-22 HILTI Aktiengesellschaft Tubular drill
US5803678A (en) * 1995-06-20 1998-09-08 American Saw & Mfg. Company Hole cutting tools
US5842820A (en) * 1997-01-23 1998-12-01 Lee Valley Tools Ltd. Cutter for use in forming dowels, plugs, and tenons
US6099214A (en) * 1997-01-23 2000-08-08 Lee Valley Tools, Ltd. Cutter for use in forming dowels, plugs, and tenons
US6004082A (en) * 1998-03-03 1999-12-21 Lee Valley Tools Ltd. Tenon cutter
US6099211A (en) * 1998-03-03 2000-08-08 Lee Valley Tools Ltd. Miniature tenon cutter
US6263929B1 (en) 1999-08-26 2001-07-24 Lee Valley Tools Ltd. Dowel maker
USD639829S1 (en) 2009-11-13 2011-06-14 Lee Valley Tools, Ltd. Tapered shoulder tenon cutter
AT509139B1 (en) * 2009-12-01 2012-12-15 E Hawle Armaturenwerke Gmbh DRILL FOR BORING UNIT
EP2987577A1 (en) * 2014-08-08 2016-02-24 wolfcraft GmbH Hole saw

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