GB1352960A - Drilling tool - Google Patents

Drilling tool

Info

Publication number
GB1352960A
GB1352960A GB5141672A GB5141672A GB1352960A GB 1352960 A GB1352960 A GB 1352960A GB 5141672 A GB5141672 A GB 5141672A GB 5141672 A GB5141672 A GB 5141672A GB 1352960 A GB1352960 A GB 1352960A
Authority
GB
United Kingdom
Prior art keywords
cutting edges
nov
drilling tool
recess
wallram
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
GB5141672A
Other languages
English (en)
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.)
WALRAM HARTMETALL GmbH
Original Assignee
WALRAM HARTMETALL GmbH
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 WALRAM HARTMETALL GmbH filed Critical WALRAM HARTMETALL GmbH
Publication of GB1352960A publication Critical patent/GB1352960A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits
    • E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
  • Earth Drilling (AREA)
GB5141672A 1971-11-26 1972-11-10 Drilling tool Expired GB1352960A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712158628 DE2158628B1 (de) 1971-11-26 1971-11-26 Bohrschneide

Publications (1)

Publication Number Publication Date
GB1352960A true GB1352960A (en) 1974-05-15

Family

ID=5826189

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5141672A Expired GB1352960A (en) 1971-11-26 1972-11-10 Drilling tool

Country Status (4)

Country Link
DE (1) DE2158628B1 (cs)
FR (1) FR2160881B1 (cs)
GB (1) GB1352960A (cs)
IT (1) IT971088B (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2328169B (en) * 1997-08-12 2001-04-18 Bosch Gmbh Robert Tool holder for a rotary hand tool machine and a tool shank for use therewith

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1197183A (fr) * 1958-05-29 1959-11-27 J K Smit & Fils Ets Perfectionnements apportés aux têtes de forage diamantées
GB1181428A (en) * 1967-11-28 1970-02-18 Padley & Venables Ltd Improvements in or relating to Percussive Drill Bits
CH492867A (de) * 1968-11-12 1970-06-30 Karnebogen Richard Hartmetallbestückte Schlagbohrkrone

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2328169B (en) * 1997-08-12 2001-04-18 Bosch Gmbh Robert Tool holder for a rotary hand tool machine and a tool shank for use therewith

Also Published As

Publication number Publication date
DE2158628A1 (cs) 1973-05-03
FR2160881B1 (cs) 1975-06-13
FR2160881A1 (cs) 1973-07-06
IT971088B (it) 1974-04-30
DE2158628B1 (de) 1973-05-03

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee