GB434383A - Improvements relating to hammer drills - Google Patents

Improvements relating to hammer drills

Info

Publication number
GB434383A
GB434383A GB1980934A GB1980934A GB434383A GB 434383 A GB434383 A GB 434383A GB 1980934 A GB1980934 A GB 1980934A GB 1980934 A GB1980934 A GB 1980934A GB 434383 A GB434383 A GB 434383A
Authority
GB
United Kingdom
Prior art keywords
improvements relating
hammer drills
drill
drills
greenwich
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
GB1980934A
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 GB1980934A priority Critical patent/GB434383A/en
Publication of GB434383A publication Critical patent/GB434383A/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
    • B23B51/02—Twist drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/006—Conical shanks of tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/02—Features of shanks of tools not relating to the operation performed by the tool
    • B23B2231/0204—Connection of shanks to working elements of tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/02—Connections between shanks and removable cutting heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/24—Overall form of drilling tools
    • B23B2251/247—Drilling tools having a working portion at both ends of the shank
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/026—Bushings, e.g. adapter sleeves

Landscapes

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

Abstract

434,383. Percussive drills. BRUSH, A. P., Greenwich, Connecticut, U.S.A. July 5, 1934, No. 19809. [Class 124] A drill bit has chisel cutting edges 37 formed on each end, the end not in use being received into a split holder. In a modification the drill is formed with portions of different diameters at each end.
GB1980934A 1934-07-05 1934-07-05 Improvements relating to hammer drills Expired GB434383A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1980934A GB434383A (en) 1934-07-05 1934-07-05 Improvements relating to hammer drills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1980934A GB434383A (en) 1934-07-05 1934-07-05 Improvements relating to hammer drills

Publications (1)

Publication Number Publication Date
GB434383A true GB434383A (en) 1935-08-30

Family

ID=10135580

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1980934A Expired GB434383A (en) 1934-07-05 1934-07-05 Improvements relating to hammer drills

Country Status (1)

Country Link
GB (1) GB434383A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005018856A1 (en) 2003-08-13 2005-03-03 Kennametal Inc. Drilling tool
EP1518627A2 (en) * 2003-09-25 2005-03-30 Manfred Schwegler Werkzeugfabrik Drill and clamping sleeve

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005018856A1 (en) 2003-08-13 2005-03-03 Kennametal Inc. Drilling tool
JP2007501719A (en) * 2003-08-13 2007-02-01 ケンナメタル　インコーポレイテッド Drilling tool
US7364390B2 (en) 2003-08-13 2008-04-29 Kennametal Inc. Drilling tool
CN100503104C (en) * 2003-08-13 2009-06-24 钴碳化钨硬质合金公司 Drilling tool, drilling tool set comprising same and drilling device
JP4824557B2 (en) * 2003-08-13 2011-11-30 ケンナメタル インコーポレイテッド Drilling tools and equipment and sets of drilling tools
EP1518627A2 (en) * 2003-09-25 2005-03-30 Manfred Schwegler Werkzeugfabrik Drill and clamping sleeve
EP1518627A3 (en) * 2003-09-25 2005-04-06 Manfred Schwegler Werkzeugfabrik Drill and clamping sleeve

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