DE2657849C2 - Unterschneider - Google Patents

Unterschneider

Info

Publication number
DE2657849C2
DE2657849C2 DE2657849A DE2657849A DE2657849C2 DE 2657849 C2 DE2657849 C2 DE 2657849C2 DE 2657849 A DE2657849 A DE 2657849A DE 2657849 A DE2657849 A DE 2657849A DE 2657849 C2 DE2657849 C2 DE 2657849C2
Authority
DE
Germany
Prior art keywords
drill head
undercutter
tubular body
borehole
cutting edge
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
DE2657849A
Other languages
German (de)
English (en)
Other versions
DE2657849A1 (de
Inventor
David Thomson Rutherglen Glasgow Allan
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.)
John MacDonald and Company Pneumatic Tools Ltd
Original Assignee
John MacDonald and Company Pneumatic Tools 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 John MacDonald and Company Pneumatic Tools Ltd filed Critical John MacDonald and Company Pneumatic Tools Ltd
Publication of DE2657849A1 publication Critical patent/DE2657849A1/de
Application granted granted Critical
Publication of DE2657849C2 publication Critical patent/DE2657849C2/de
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/03—Boring heads
    • B23B29/034—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings
    • B23B29/03432—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable during manufacturing
    • B23B29/03489—Adjustment means not specified or not covered by the groups B23B29/03435 - B23B29/03478
    • B23B29/03496—Grooving tool
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/26—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by impact tools, e.g. by chisels or other tools having a cutting edge

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Earth Drilling (AREA)
  • Piles And Underground Anchors (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Road Signs Or Road Markings (AREA)
DE2657849A 1975-12-29 1976-12-21 Unterschneider Expired DE2657849C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB53060/75A GB1554730A (en) 1975-12-29 1975-12-29 Apparatus for undercutting a drill hole

Publications (2)

Publication Number Publication Date
DE2657849A1 DE2657849A1 (de) 1977-07-07
DE2657849C2 true DE2657849C2 (de) 1985-12-19

Family

ID=10466483

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2657849A Expired DE2657849C2 (de) 1975-12-29 1976-12-21 Unterschneider

Country Status (10)

Country Link
US (1) US4153121A (cg-RX-API-DMAC10.html)
JP (1) JPS5939032B2 (cg-RX-API-DMAC10.html)
AU (1) AU504087B2 (cg-RX-API-DMAC10.html)
CA (1) CA1062241A (cg-RX-API-DMAC10.html)
DE (1) DE2657849C2 (cg-RX-API-DMAC10.html)
FI (1) FI763720A7 (cg-RX-API-DMAC10.html)
FR (1) FR2337019A1 (cg-RX-API-DMAC10.html)
GB (1) GB1554730A (cg-RX-API-DMAC10.html)
NO (1) NO147808C (cg-RX-API-DMAC10.html)
ZA (1) ZA767445B (cg-RX-API-DMAC10.html)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1586163A (en) * 1976-07-06 1981-03-18 Macdonald Pneumatic Tools Fluid operated undercutter
DE3100733A1 (de) * 1981-01-13 1982-08-26 Termofix Betonbrenn GmbH, 7145 Markgröningen Verfahren zur befestigung von gegenstaenden an fertigen beton- oder steinwaenden sowie vorrichtung zur durchfuehrung des verfahrens
DE3119605C2 (de) * 1981-05-16 1986-07-10 Norton Co., Worcester, Mass. Vorrichtung zum unterschneidenden Räumen von zylindrischen Bohrlöchern
US5197553A (en) * 1991-08-14 1993-03-30 Atlantic Richfield Company Drilling with casing and retrievable drill bit
US5271472A (en) * 1991-08-14 1993-12-21 Atlantic Richfield Company Drilling with casing and retrievable drill bit
DE10311079A1 (de) * 2003-03-13 2004-09-30 Powers Fasteners Europe Bv Bohrvorrichtung
CA2578424C (en) * 2006-02-08 2014-05-06 Tesco Corporation Method and assembly for casing handling using a kelly rig
JP6401487B2 (ja) * 2013-04-26 2018-10-10 株式会社ミスミ特殊 アンダーカットドリル装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE239524C (cg-RX-API-DMAC10.html) *
US1236371A (en) * 1913-06-09 1917-08-07 Sullivan Machinery Co Drilling apparatus.
US1461713A (en) * 1921-07-22 1923-07-10 Reni S Berry Well drill
DE492822C (de) * 1927-04-14 1930-02-27 Eduard Meyer Einrichtung zum Hochbohren
US2942850A (en) * 1957-07-23 1960-06-28 Mckee Company Multiple drill
US3101499A (en) * 1959-05-27 1963-08-27 Phillips Petroleum Co Pipe cleaner
FR1271163A (fr) * 1960-07-26 1961-09-08 Dispositif élargisseur de la base d'un forage
US3386250A (en) * 1963-12-07 1968-06-04 Katayama Susumu Water current controlling means
GB1189115A (en) * 1966-06-13 1970-04-22 Lucas Industries Ltd Boring Head Attachments for Machine Tools for producing Undercut Formations in Workpieces
US3513920A (en) * 1967-06-08 1970-05-26 Watson Mfg Co Underreamer
GB1386071A (en) * 1970-12-29 1975-03-05 Keen P A Recessing or similar tools

Also Published As

Publication number Publication date
FR2337019A1 (fr) 1977-07-29
US4153121A (en) 1979-05-08
NO764375L (cg-RX-API-DMAC10.html) 1977-06-30
GB1554730A (en) 1979-10-31
FI763720A7 (cg-RX-API-DMAC10.html) 1977-06-30
NO147808C (no) 1983-06-15
ZA767445B (en) 1977-11-30
DE2657849A1 (de) 1977-07-07
AU2056276A (en) 1978-06-22
CA1062241A (en) 1979-09-11
FR2337019B1 (cg-RX-API-DMAC10.html) 1982-06-11
NO147808B (no) 1983-03-07
AU504087B2 (en) 1979-10-04
JPS5939032B2 (ja) 1984-09-20
JPS5292801A (en) 1977-08-04

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee